Neurology

Differing state regulations and a paucity of research has made it difficult to develop consensus guidelines for the use of cannabinoids in treating drug-resistant epilepsy. A recent review article draws from existing clinical trials and clinical experience in New South Wales, Australia, to fill this gap with interim guidance for both pediatric and adult patients. The article was published in the British Journal of Clinical Pharmacology.

The only current U.S. guidelines are from the American Academy of Neurology’s position statement on the use of medical cannabis for neurologic disorders and the American Epilepsy Society’s position statement on cannabis as a treatment for epileptic seizures. The AAN statement “highlights the current evidence, which currently only supports [Food and Drug Administration]–approved CBD [cannabidiol] (Epidiolex) for specific epilepsy syndromes,” said Daniel Freedman, DO, an assistant professor of neurology at the University of Texas at Austin and coauthor of the AAN’s position statement.

“Rescheduling marijuana will enable researchers to study CBD, THC [tetrahydrocannabinol], and other cannabinoids in high-quality studies so that we can better understand what works and for which conditions,” said Dr. Freedman, who was not involved in the Australian guidance document. He noted that little consensus exists because little evidence exists outside the handful of trials for Epidiolex.

“There are some patients with epilepsy that can benefit from high-quality, pharmaceutical-grade CBD products,” Dr. Freedman said. “These patients need to be carefully identified by a neurologist or epileptologist and prescribed a legal, safe, quality-controlled, and FDA-regulated product.”
 

Appropriate patient populations

Drug-resistant epilepsy, defined as failure of two appropriate antiseizure medications, affects an estimated one third of people with epilepsy, the new guideline notes. Though many over-the-counter products are available at dispensaries in the 33 U.S. states that allow use of cannabis for medical purposes, Epidiolex (cannabidiol) is the only FDA-approved drug for epilepsy that contains a substance derived from cannabis and the only one for which evidence from randomized, controlled trials exists.

Dr. Freedman notes that hemp-derived CBD oils are classified differently in the United States than marijuana-derived CBD oil, including Epidiolex, and are loosely regulated supplements or food additives commonly seen, for example at gas station.

“The point I drive home to patients is that you wouldn’t get your antibiotics from a gas station, so please don’t get your seizure medication from there,” Dr. Freedman said. “Studies have been done on ‘over-the-counter’ CBD oils and shown that they have variable quality, sometimes no detectable CBD, and sometimes other chemicals added like THC.”

Studies of Epidiolex showed that cannabidiol more effectively reduced seizure frequency than placebo for pediatric patients with Dravet syndrome (42% reduction) and for pediatric and adult patients with Lennox-Gastaut syndrome (39% reduction) or tuberous sclerosis complex (49% reduction). Efficacy was similar across dosing from 10-50 mg/kg per day, but higher doses involved higher rates of serious adverse events.

No reliable evidence in humans exists for THC or other cannabinoids in treating epilepsy.

The Australian guidance recommends limiting cannabis treatment to patients with severe drug-resistant epilepsy; a diagnosis of Dravet syndrome, Lennox-Gastaut syndrome, or tuberous sclerosis complex; and previous treatment with four approved antiseizure medications and/or the ketogenic diet, epilepsy surgery, or neurostimulator. The authors provide specific criteria for each of these conditions and then address exceptional cases that may be considered outside that criteria, such as patients under 2 years old, severe epilepsy with extended or repeated hospitalization or ICU admission, or a dangerous seizure type. The review also includes a detailed list of exclusion criteria for CBD medicine use.

The authors advised a thorough consent process before prescribing any cannabinoids, including therapeutic goals and stopping criteria; the lack of evidence available on dosing, efficacy, and side effects; and the potential for dependence or withdrawal. Consent discussions should also note whether the products are unregistered and not covered by external payers (anything other than Epidiolex currently), any activity restrictions, and any implications for occupational drug screening.
 

Considerations for unapproved cannabinoids

The authors note several factors to consider if prescribing or recommending a nonapproved, nonregulated cannabis medicine, including the ”differences between registered plant-derived cannabis medicines, synthetic cannabis medicines, and unregistered hemp-derived products.” Epidiolex is plant derived while other cannabis-derived medications (Marinol, Syndos, and Cesamet) that have been approved for nonepilepsy conditions, such as nausea associated with chemotherapy, are synthetic.

The guidance document notes several reasons to use a regulated medication instead of an unregulated product:

• Manufacturing processes can differ for unregulated products, including inconsistency in batches and unknown shelf life.
• Quality control processes, including risk of impurities, are much better with regulated products, which also have a system in place for safety recalls.
• More scientific evidence is available for regulated products.
• Safety surveillance reporting is more robust and standardized for regulated products whereas adverse event reporting is less reliable for unregulated products.
• Nonregulated products are rarely covered by insurance or other reimbursement.

Legal considerations will also vary by jurisdiction. ”Right now in the U.S. we have a confused legality where state level programs are still technically illegal at the federal level and I imagine there are some quality differences amongst dispensaries and states,” Dr. Freedman said. “Whenever there is disagreement between state and federal laws, this creates tension for our patients.” He noted, for example, that a patient using a CBD product that contains THC may, even if legal in their state, be confiscated by the Transportation Security Administration at an airport since it is not FDA approved and is not legal, according to the Drug Enforcement Agency.

The authors noted that inadequate data on long-term CBD use and data on neurodevelopmental effects of THC in children, teens, and young adults means THC products should be contraindicated for these age groups. (Epidiolex has less than 2% THC.) Drug interactions should also be considered, particularly for clobazam, CYP3A4 inhibitors or inducers (including St. John’s wort), digoxin, or a mechanistic target of rapamycin inhibitor.

Dr. Freedman said that most neurologists are comfortable prescribing Epidiolex since it has FDA approval while prescribing unapproved products varies more in the field. “Now that many states have compassionate use programs for medical marijuana, some neurologists do this as well,” Dr. Freedman said. Patients often ask about unregulated CBD or CBD+THC products because they’re seen as “natural and therefore better than manufactured pharmaceuticals.”

“I think this is the naturalistic fallacy at work and try to educate my patients on that since our only high-level data to show marijuana products work for epilepsy comes from a pharmaceutical company,” Dr. Freedman said. “My reasons for hesitating on compassionate use are that there is often THC, with variable amounts of concentration, and we know that THC can harm the developing pediatric brain.”
 

Dosing and adverse effects

Pediatric and adult dosing differences need to be considered, and “patient response (efficacy and toxicity) to these medications varies widely,” the authors noted. They advised getting serum transaminases (ALT and AST) and total bilirubin levels before beginning treatment. All patients should begin Epidiolex at a low dose, such as 2-5 mg/kg per day of CBD in two divided doses, the authors advise, and titrate slowly while monitoring for side effects (no more than 5 mg/kg per day per week). The current dosing range for CBD is 5-20 mg/kg per day in two divided doses, with higher rates involving more risk of adverse events.

“Note that some cannabinoids auto-inhibit their own metabolism and some have active metabolites with longer half-lives,” the authors wrote. “Therefore, dose or frequency may need to be reduced over time, unless tolerance occurs.” These doses, specific to Epidiolex, “cannot necessarily be applied to other oral CBD formulations or other types of epilepsy.” This guidance also does not apply to inhaled or transdermal routes of administration.

The most common adverse events were sleepiness – which occurred in up to 60% of trial participants – as well as diarrhea, decreases in appetite and weight, and drug interactions. Risk of hepatotoxicity means there’s a need to monitor liver function and adjust dosing for patients with moderate or severe hepatic impairment. “Other short-term side effects reported only with THC-containing cannabinoid compounds include increased risk of cardiac and cerebrovascular events, anxiety and psychosis risk, dependency, and withdrawal,” the authors wrote.

Though no withdrawal syndrome has been linked to stopping CBD, the authors suggested decreasing the dose by 10% every 2 days if stopping is not urgent.

“The key points to this issue are that CBD and all marijuana products need to be safe and regulated,” Dr. Freedman said. “Any claims about them need to be backed by high-quality evidence looking at that specific product for that specific condition.”

Dr. Freedman noted the need for children to receive treatment from clinicians with expertise in their specific condition since many other evidence-based treatments exist even for patients with epilepsy syndromes that are difficult to treat, such as other medications, surgery, and specialized diets.

“We need to fix the inconsistent regulation between over-the-counter CBD products, state dispensaries, and federal laws,” Dr. Freedman added. “Any medicine being used to treat children should be held to the same FDA standard of safety and efficacy.”

Dr. Freedman and the authors had no conflicts of interest. No external funding was noted.

Differing state regulations and a paucity of research has made it difficult to develop consensus guidelines for the use of cannabinoids in treating drug-resistant epilepsy. A recent review article draws from existing clinical trials and clinical experience in New South Wales, Australia, to fill this gap with interim guidance for both pediatric and adult patients. The article was published in the British Journal of Clinical Pharmacology.

The only current U.S. guidelines are from the American Academy of Neurology’s position statement on the use of medical cannabis for neurologic disorders and the American Epilepsy Society’s position statement on cannabis as a treatment for epileptic seizures. The AAN statement “highlights the current evidence, which currently only supports [Food and Drug Administration]–approved CBD [cannabidiol] (Epidiolex) for specific epilepsy syndromes,” said Daniel Freedman, DO, an assistant professor of neurology at the University of Texas at Austin and coauthor of the AAN’s position statement.

“Rescheduling marijuana will enable researchers to study CBD, THC [tetrahydrocannabinol], and other cannabinoids in high-quality studies so that we can better understand what works and for which conditions,” said Dr. Freedman, who was not involved in the Australian guidance document. He noted that little consensus exists because little evidence exists outside the handful of trials for Epidiolex.

“There are some patients with epilepsy that can benefit from high-quality, pharmaceutical-grade CBD products,” Dr. Freedman said. “These patients need to be carefully identified by a neurologist or epileptologist and prescribed a legal, safe, quality-controlled, and FDA-regulated product.”
 

Appropriate patient populations

Drug-resistant epilepsy, defined as failure of two appropriate antiseizure medications, affects an estimated one third of people with epilepsy, the new guideline notes. Though many over-the-counter products are available at dispensaries in the 33 U.S. states that allow use of cannabis for medical purposes, Epidiolex (cannabidiol) is the only FDA-approved drug for epilepsy that contains a substance derived from cannabis and the only one for which evidence from randomized, controlled trials exists.

Dr. Freedman notes that hemp-derived CBD oils are classified differently in the United States than marijuana-derived CBD oil, including Epidiolex, and are loosely regulated supplements or food additives commonly seen, for example at gas station.

“The point I drive home to patients is that you wouldn’t get your antibiotics from a gas station, so please don’t get your seizure medication from there,” Dr. Freedman said. “Studies have been done on ‘over-the-counter’ CBD oils and shown that they have variable quality, sometimes no detectable CBD, and sometimes other chemicals added like THC.”

Studies of Epidiolex showed that cannabidiol more effectively reduced seizure frequency than placebo for pediatric patients with Dravet syndrome (42% reduction) and for pediatric and adult patients with Lennox-Gastaut syndrome (39% reduction) or tuberous sclerosis complex (49% reduction). Efficacy was similar across dosing from 10-50 mg/kg per day, but higher doses involved higher rates of serious adverse events.

No reliable evidence in humans exists for THC or other cannabinoids in treating epilepsy.

The Australian guidance recommends limiting cannabis treatment to patients with severe drug-resistant epilepsy; a diagnosis of Dravet syndrome, Lennox-Gastaut syndrome, or tuberous sclerosis complex; and previous treatment with four approved antiseizure medications and/or the ketogenic diet, epilepsy surgery, or neurostimulator. The authors provide specific criteria for each of these conditions and then address exceptional cases that may be considered outside that criteria, such as patients under 2 years old, severe epilepsy with extended or repeated hospitalization or ICU admission, or a dangerous seizure type. The review also includes a detailed list of exclusion criteria for CBD medicine use.

The authors advised a thorough consent process before prescribing any cannabinoids, including therapeutic goals and stopping criteria; the lack of evidence available on dosing, efficacy, and side effects; and the potential for dependence or withdrawal. Consent discussions should also note whether the products are unregistered and not covered by external payers (anything other than Epidiolex currently), any activity restrictions, and any implications for occupational drug screening.
 

Considerations for unapproved cannabinoids

The authors note several factors to consider if prescribing or recommending a nonapproved, nonregulated cannabis medicine, including the ”differences between registered plant-derived cannabis medicines, synthetic cannabis medicines, and unregistered hemp-derived products.” Epidiolex is plant derived while other cannabis-derived medications (Marinol, Syndos, and Cesamet) that have been approved for nonepilepsy conditions, such as nausea associated with chemotherapy, are synthetic.

The guidance document notes several reasons to use a regulated medication instead of an unregulated product:

• Manufacturing processes can differ for unregulated products, including inconsistency in batches and unknown shelf life.
• Quality control processes, including risk of impurities, are much better with regulated products, which also have a system in place for safety recalls.
• More scientific evidence is available for regulated products.
• Safety surveillance reporting is more robust and standardized for regulated products whereas adverse event reporting is less reliable for unregulated products.
• Nonregulated products are rarely covered by insurance or other reimbursement.

Legal considerations will also vary by jurisdiction. ”Right now in the U.S. we have a confused legality where state level programs are still technically illegal at the federal level and I imagine there are some quality differences amongst dispensaries and states,” Dr. Freedman said. “Whenever there is disagreement between state and federal laws, this creates tension for our patients.” He noted, for example, that a patient using a CBD product that contains THC may, even if legal in their state, be confiscated by the Transportation Security Administration at an airport since it is not FDA approved and is not legal, according to the Drug Enforcement Agency.

The authors noted that inadequate data on long-term CBD use and data on neurodevelopmental effects of THC in children, teens, and young adults means THC products should be contraindicated for these age groups. (Epidiolex has less than 2% THC.) Drug interactions should also be considered, particularly for clobazam, CYP3A4 inhibitors or inducers (including St. John’s wort), digoxin, or a mechanistic target of rapamycin inhibitor.

Dr. Freedman said that most neurologists are comfortable prescribing Epidiolex since it has FDA approval while prescribing unapproved products varies more in the field. “Now that many states have compassionate use programs for medical marijuana, some neurologists do this as well,” Dr. Freedman said. Patients often ask about unregulated CBD or CBD+THC products because they’re seen as “natural and therefore better than manufactured pharmaceuticals.”

“I think this is the naturalistic fallacy at work and try to educate my patients on that since our only high-level data to show marijuana products work for epilepsy comes from a pharmaceutical company,” Dr. Freedman said. “My reasons for hesitating on compassionate use are that there is often THC, with variable amounts of concentration, and we know that THC can harm the developing pediatric brain.”
 

Dosing and adverse effects

Pediatric and adult dosing differences need to be considered, and “patient response (efficacy and toxicity) to these medications varies widely,” the authors noted. They advised getting serum transaminases (ALT and AST) and total bilirubin levels before beginning treatment. All patients should begin Epidiolex at a low dose, such as 2-5 mg/kg per day of CBD in two divided doses, the authors advise, and titrate slowly while monitoring for side effects (no more than 5 mg/kg per day per week). The current dosing range for CBD is 5-20 mg/kg per day in two divided doses, with higher rates involving more risk of adverse events.

“Note that some cannabinoids auto-inhibit their own metabolism and some have active metabolites with longer half-lives,” the authors wrote. “Therefore, dose or frequency may need to be reduced over time, unless tolerance occurs.” These doses, specific to Epidiolex, “cannot necessarily be applied to other oral CBD formulations or other types of epilepsy.” This guidance also does not apply to inhaled or transdermal routes of administration.

The most common adverse events were sleepiness – which occurred in up to 60% of trial participants – as well as diarrhea, decreases in appetite and weight, and drug interactions. Risk of hepatotoxicity means there’s a need to monitor liver function and adjust dosing for patients with moderate or severe hepatic impairment. “Other short-term side effects reported only with THC-containing cannabinoid compounds include increased risk of cardiac and cerebrovascular events, anxiety and psychosis risk, dependency, and withdrawal,” the authors wrote.

Though no withdrawal syndrome has been linked to stopping CBD, the authors suggested decreasing the dose by 10% every 2 days if stopping is not urgent.

“The key points to this issue are that CBD and all marijuana products need to be safe and regulated,” Dr. Freedman said. “Any claims about them need to be backed by high-quality evidence looking at that specific product for that specific condition.”

Dr. Freedman noted the need for children to receive treatment from clinicians with expertise in their specific condition since many other evidence-based treatments exist even for patients with epilepsy syndromes that are difficult to treat, such as other medications, surgery, and specialized diets.

“We need to fix the inconsistent regulation between over-the-counter CBD products, state dispensaries, and federal laws,” Dr. Freedman added. “Any medicine being used to treat children should be held to the same FDA standard of safety and efficacy.”

Dr. Freedman and the authors had no conflicts of interest. No external funding was noted.

Differing state regulations and a paucity of research has made it difficult to develop consensus guidelines for the use of cannabinoids in treating drug-resistant epilepsy. A recent review article draws from existing clinical trials and clinical experience in New South Wales, Australia, to fill this gap with interim guidance for both pediatric and adult patients. The article was published in the British Journal of Clinical Pharmacology.

The only current U.S. guidelines are from the American Academy of Neurology’s position statement on the use of medical cannabis for neurologic disorders and the American Epilepsy Society’s position statement on cannabis as a treatment for epileptic seizures. The AAN statement “highlights the current evidence, which currently only supports [Food and Drug Administration]–approved CBD [cannabidiol] (Epidiolex) for specific epilepsy syndromes,” said Daniel Freedman, DO, an assistant professor of neurology at the University of Texas at Austin and coauthor of the AAN’s position statement.

“Rescheduling marijuana will enable researchers to study CBD, THC [tetrahydrocannabinol], and other cannabinoids in high-quality studies so that we can better understand what works and for which conditions,” said Dr. Freedman, who was not involved in the Australian guidance document. He noted that little consensus exists because little evidence exists outside the handful of trials for Epidiolex.

“There are some patients with epilepsy that can benefit from high-quality, pharmaceutical-grade CBD products,” Dr. Freedman said. “These patients need to be carefully identified by a neurologist or epileptologist and prescribed a legal, safe, quality-controlled, and FDA-regulated product.”
 

Appropriate patient populations

Drug-resistant epilepsy, defined as failure of two appropriate antiseizure medications, affects an estimated one third of people with epilepsy, the new guideline notes. Though many over-the-counter products are available at dispensaries in the 33 U.S. states that allow use of cannabis for medical purposes, Epidiolex (cannabidiol) is the only FDA-approved drug for epilepsy that contains a substance derived from cannabis and the only one for which evidence from randomized, controlled trials exists.

Dr. Freedman notes that hemp-derived CBD oils are classified differently in the United States than marijuana-derived CBD oil, including Epidiolex, and are loosely regulated supplements or food additives commonly seen, for example at gas station.

“The point I drive home to patients is that you wouldn’t get your antibiotics from a gas station, so please don’t get your seizure medication from there,” Dr. Freedman said. “Studies have been done on ‘over-the-counter’ CBD oils and shown that they have variable quality, sometimes no detectable CBD, and sometimes other chemicals added like THC.”

Studies of Epidiolex showed that cannabidiol more effectively reduced seizure frequency than placebo for pediatric patients with Dravet syndrome (42% reduction) and for pediatric and adult patients with Lennox-Gastaut syndrome (39% reduction) or tuberous sclerosis complex (49% reduction). Efficacy was similar across dosing from 10-50 mg/kg per day, but higher doses involved higher rates of serious adverse events.

No reliable evidence in humans exists for THC or other cannabinoids in treating epilepsy.

The Australian guidance recommends limiting cannabis treatment to patients with severe drug-resistant epilepsy; a diagnosis of Dravet syndrome, Lennox-Gastaut syndrome, or tuberous sclerosis complex; and previous treatment with four approved antiseizure medications and/or the ketogenic diet, epilepsy surgery, or neurostimulator. The authors provide specific criteria for each of these conditions and then address exceptional cases that may be considered outside that criteria, such as patients under 2 years old, severe epilepsy with extended or repeated hospitalization or ICU admission, or a dangerous seizure type. The review also includes a detailed list of exclusion criteria for CBD medicine use.

The authors advised a thorough consent process before prescribing any cannabinoids, including therapeutic goals and stopping criteria; the lack of evidence available on dosing, efficacy, and side effects; and the potential for dependence or withdrawal. Consent discussions should also note whether the products are unregistered and not covered by external payers (anything other than Epidiolex currently), any activity restrictions, and any implications for occupational drug screening.
 

Considerations for unapproved cannabinoids

The authors note several factors to consider if prescribing or recommending a nonapproved, nonregulated cannabis medicine, including the ”differences between registered plant-derived cannabis medicines, synthetic cannabis medicines, and unregistered hemp-derived products.” Epidiolex is plant derived while other cannabis-derived medications (Marinol, Syndos, and Cesamet) that have been approved for nonepilepsy conditions, such as nausea associated with chemotherapy, are synthetic.

The guidance document notes several reasons to use a regulated medication instead of an unregulated product:

• Manufacturing processes can differ for unregulated products, including inconsistency in batches and unknown shelf life.
• Quality control processes, including risk of impurities, are much better with regulated products, which also have a system in place for safety recalls.
• More scientific evidence is available for regulated products.
• Safety surveillance reporting is more robust and standardized for regulated products whereas adverse event reporting is less reliable for unregulated products.
• Nonregulated products are rarely covered by insurance or other reimbursement.

Legal considerations will also vary by jurisdiction. ”Right now in the U.S. we have a confused legality where state level programs are still technically illegal at the federal level and I imagine there are some quality differences amongst dispensaries and states,” Dr. Freedman said. “Whenever there is disagreement between state and federal laws, this creates tension for our patients.” He noted, for example, that a patient using a CBD product that contains THC may, even if legal in their state, be confiscated by the Transportation Security Administration at an airport since it is not FDA approved and is not legal, according to the Drug Enforcement Agency.

The authors noted that inadequate data on long-term CBD use and data on neurodevelopmental effects of THC in children, teens, and young adults means THC products should be contraindicated for these age groups. (Epidiolex has less than 2% THC.) Drug interactions should also be considered, particularly for clobazam, CYP3A4 inhibitors or inducers (including St. John’s wort), digoxin, or a mechanistic target of rapamycin inhibitor.

Dr. Freedman said that most neurologists are comfortable prescribing Epidiolex since it has FDA approval while prescribing unapproved products varies more in the field. “Now that many states have compassionate use programs for medical marijuana, some neurologists do this as well,” Dr. Freedman said. Patients often ask about unregulated CBD or CBD+THC products because they’re seen as “natural and therefore better than manufactured pharmaceuticals.”

“I think this is the naturalistic fallacy at work and try to educate my patients on that since our only high-level data to show marijuana products work for epilepsy comes from a pharmaceutical company,” Dr. Freedman said. “My reasons for hesitating on compassionate use are that there is often THC, with variable amounts of concentration, and we know that THC can harm the developing pediatric brain.”
 

Dosing and adverse effects

Pediatric and adult dosing differences need to be considered, and “patient response (efficacy and toxicity) to these medications varies widely,” the authors noted. They advised getting serum transaminases (ALT and AST) and total bilirubin levels before beginning treatment. All patients should begin Epidiolex at a low dose, such as 2-5 mg/kg per day of CBD in two divided doses, the authors advise, and titrate slowly while monitoring for side effects (no more than 5 mg/kg per day per week). The current dosing range for CBD is 5-20 mg/kg per day in two divided doses, with higher rates involving more risk of adverse events.

“Note that some cannabinoids auto-inhibit their own metabolism and some have active metabolites with longer half-lives,” the authors wrote. “Therefore, dose or frequency may need to be reduced over time, unless tolerance occurs.” These doses, specific to Epidiolex, “cannot necessarily be applied to other oral CBD formulations or other types of epilepsy.” This guidance also does not apply to inhaled or transdermal routes of administration.

The most common adverse events were sleepiness – which occurred in up to 60% of trial participants – as well as diarrhea, decreases in appetite and weight, and drug interactions. Risk of hepatotoxicity means there’s a need to monitor liver function and adjust dosing for patients with moderate or severe hepatic impairment. “Other short-term side effects reported only with THC-containing cannabinoid compounds include increased risk of cardiac and cerebrovascular events, anxiety and psychosis risk, dependency, and withdrawal,” the authors wrote.

Though no withdrawal syndrome has been linked to stopping CBD, the authors suggested decreasing the dose by 10% every 2 days if stopping is not urgent.

“The key points to this issue are that CBD and all marijuana products need to be safe and regulated,” Dr. Freedman said. “Any claims about them need to be backed by high-quality evidence looking at that specific product for that specific condition.”

Dr. Freedman noted the need for children to receive treatment from clinicians with expertise in their specific condition since many other evidence-based treatments exist even for patients with epilepsy syndromes that are difficult to treat, such as other medications, surgery, and specialized diets.

“We need to fix the inconsistent regulation between over-the-counter CBD products, state dispensaries, and federal laws,” Dr. Freedman added. “Any medicine being used to treat children should be held to the same FDA standard of safety and efficacy.”

Dr. Freedman and the authors had no conflicts of interest. No external funding was noted.

Subacute combined degeneration (SCD) is an acquired neurologic complication of vitamin B12 (cobalamin) or, rarely, vitamin B9 (folate) deficiency. SCD is characterized by progressive demyelination of the dorsal and lateral spinal cord, resulting in peripheral neuropathy; gait ataxia; impaired proprioception, vibration, and fine touch; optic neuropathy; and cognitive impairment.¹ In addition to SCD, other neurologic manifestations of B12 deficiency include dementia, depression, visual symptoms due to optic atrophy, and behavioral changes.² The prevalence of SCD in the US has not been well documented, but B12 deficiency is reported at 6% in those aged < 60 years and 20% in those > 60 years^.3

Causes of B12 and B9 deficiency include advanced age, low nutritional intake (eg, vegan diet), impaired absorption (eg, inflammatory bowel disease, autoimmune pernicious anemia, gastrectomy, pancreatic disease), alcohol use, tapeworm infection, medications, and high metabolic states.^2,4 Impaired B12 absorption is common in patients taking medications, such as metformin and proton pump inhibitors (PPI), due to suppression of ileal membrane transport and intrinsic factor activity.^5-7 B-vitamin deficiency can be exacerbated by states of increased cellular turnover, such as polycythemia vera, due to elevated DNA synthesis.

Patients may experience permanent neurologic damage when the diagnosis and treatment of SCD are missed or delayed. Early diagnosis of SCD can be challenging due to lack of specific hematologic markers. In addition, many other conditions such as diabetic neuropathy, malnutrition, toxic neuropathy, sarcoidosis, HIV, multiple sclerosis, polycythemia vera, and iron deficiency anemia have similar presentations and clinical findings.⁸ Anemia and/or macrocytosis are not specific to B12 deficiency.⁴ In addition, patients with B12 deficiency may have a normal complete blood count (CBC); those with concomitant iron deficiency may have minimal or no mean corpuscular volume (MCV) elevation.⁴ In patients suspected to have B12 deficiency based on clinical presentation or laboratory findings of macrocytosis, serum methylmalonic acid (MMA) can serve as a direct measure of B12 activity, with levels > 0.75 μmol/L almost always indicating cobalamin deficiency. ⁹ On the other hand, plasma total homocysteine (tHcy) is a sensitive marker for B12 deficiency. The active form of B12, holotranscobalamin, has also emerged as a specific measure of B12 deficiency.⁹ However, in patients with SCD, measurement of these markers may be unnecessary due to the severity of their clinical symptoms. 

The diagnosis of SCD is further complicated because not all individuals who develop B12 or B9 deficiency will develop SCD. It is difficult to determine which patients will develop SCD because the minimum level of serum B12 required for normal function is unknown, and recent studies indicate that SCD may occur even at low-normal B12 and B9 levels.^2,4,10 Commonly, a serum B12 level of < 200 pg/mL is considered deficient, while a level between 200 and 300 pg/mL is considered borderline.⁴ The goal level of serum B12 is > 300 pg/mL, which is considered normal.⁴ While serologic findings of B-vitamin deficiency are only moderately specific, radiographic findings are highly sensitive and specific for SCD. According to Briani and colleagues, the most consistent finding in SCD on magnetic resonance imaging (MRI) is a “symmetrical, abnormally increased T2 signal intensity, commonly confined to posterior or posterior and lateral columns in the cervical and thoracic spinal cord.”²

We present a case of SCD in a patient with low-normal vitamin B12 levels who presented with progressive sensorimotor deficits and vision loss. The patient was subsequently diagnosed with SCD by radiologic workup. His course was complicated by worsening neurologic deficits despite B12 replacement. The progression of his clinical symptoms demonstrates the need for prompt, aggressive B12 replacement in patients diagnosed with SCD.

Case Presentation

A 63-year-old man presented for neurologic evaluation of progressive gait disturbance, paresthesia, blurred vision, and increasing falls despite use of a walker. Pertinent medical history included polycythemia vera requiring phlebotomy for approximately 9 years, alcohol use disorder (18 servings weekly), type 2 diabetes mellitus, and a remote episode of transient ischemic attack (TIA). The patient reported a 5-year history of burning pain in all extremities. A prior physician diagnosis attributed the symptoms to polyneuropathy secondary to iron deficiency anemia in the setting of chronic phlebotomy for polycythemia vera and high erythrogenesis. He was prescribed gabapentin 600 mg 3 times daily for pain control. B12 deficiency was considered an unlikely etiology due to a low-normal serum level of 305 pg/mL (reference range, 190-950 pg/mL) and normocytosis, with MCV of 88 fL (reference range, 80-100 fL). The patient also reported a 3-year history of blurred vision, which was initially attributed to be secondary to diabetic retinopathy. One week prior to presenting to our clinic, he was evaluated by ophthalmology for new-onset, bilateral central visual field defects, and he was diagnosed with nutritional optic neuropathy.

Previous cardiac evaluation failed to provide a diagnosis for syncopal episodes. MRI of the brain revealed nonspecific white matter changes consistent with chronic microvascular ischemic disease. Electromyography was limited due to pain but showed severe peripheral neuropathy. Laboratory results showed megalocytosis, low-normal serum B12 levels, and low serum folate levels (Table 2). The patient was diagnosed with polyneuropathy and was given intramuscular (IM) vitamin B12 1000 mcg once and a daily multivitamin (containing 25 mcg of B12). He was counseled on alcohol abstinence and medication adherence and was scheduled for follow-up in 3 months. He continued outpatient phlebotomy every 6 weeks for polycythemia.

At 3-month follow-up, the patient reported medication adherence, continued alcohol use, and worsening of symptoms. Falls, which now occurred 2 to 3 times weekly despite proper use of a walker, were described as sudden loss of bilateral lower extremity strength without loss of consciousness, palpitations, or other prodrome. Laboratory results showed minimal changes. Physical examination of the patient demonstrated similar deficits as on initial presentation. The patient received one additional B12 1000 mcg IM. Gabapentin was replaced with pregabalin 75 mg twice daily due to persistent uncontrolled pain and paresthesia. The patient was scheduled for a 3-month followup (6 months from initial visit) and repeat serology.

At 6-month follow-up, the patient showed continued progression of disease with significant difficulty using the walker, worsening falls, and wheelchair use required. Physical examination showed decreased sensation bilaterally up to the knees, absent bilateral patellar and Achilles reflexes, and unsteady gait. Laboratory results showed persistent subclinical B12 deficiency. MRI of the brain and spine showed high T2 signaling in a pattern highly specific for SCD. A formal diagnosis of SCD was made. The patient received an additional B12 1000 mcg IM once. Follow-up phone call with the patient 1 month later revealed no progression or improvement of symptoms.

Radiographic Findings

MRI of the cervical and thoracic spine demonstrated abnormal high T2 signal starting from C2 and extending along the course of the cervical and thoracic spinal cord (Figure). MRI in SCD classically shows symmetric, bilateral high T2 signal within the dorsal columns; on axial images, there is typically an inverted “V” sign.^2,4 There can also be abnormal cerebral white matter change; however, MRI of the brain in this patient did not show any abnormalities.2 The imaging differential for this appearance includes other metabolic deficiencies/toxicities: copper deficiency; vitamin E deficiency; methotrexateinduced myelopathy, and infectious causes: HIV vacuolar myelopathy; and neurosyphilis (tabes dorsalis).⁴

Discussion

This case demonstrates the clinical and radiographic findings of SCD and underscores the need for high-intensity dosing of B12 replacement in patients with SCD to prevent progression of the disease and development of morbidities.

Symptoms of SCD may manifest even when the vitamin levels are in low-normal levels. Its presentation is often nonspecific, thus radiologic workup is beneficial to elucidate the clinical picture. We support the use of spinal MRI in patients with clinical suspicion of SCD to help rule out other causes of myelopathy. However, an MRI is not indicated in all patients with B12 deficiency, especially those without myelopathic symptoms. Additionally, follow-up spinal MRIs are useful in monitoring the progression or improvement of SCD after B12 replacement.² It is important to note that the MRI findings in SCD are not specific to B12 deficiency; other causes may present with similar radiographic findings.⁴ Therefore, radiologic findings must be correlated with a patient’s clinical presentation.

B12 replacement improves and may resolve clinical symptoms and abnormal radiographic findings of SCD. The treatment duration of B12 deficiency depends on the underlying etiology. Reversible causes, such as metformin use > 4 months, PPI use > 12 months, and dietary deficiency, require treatment until appropriate levels are reached and symptoms are resolved.^4,11 The need for chronic metformin and PPI use should also be reassessed regularly. In patients who require long-term metformin use, IM administration of B12 1000 mcg annually should be considered, which will ensure adequate storage for more than 1 year.^12,13 In patients who require long-term PPI use, the risk and benefits of continued use should be measured, and if needed, the lowest possible effective PPI dose is recommended.¹⁴ Irreversible causes of B12 deficiency, such as advanced age, prior gastrectomy, chronic pancreatitis, or autoimmune pernicious anemia, require lifelong supplementation of B12.^4,11

In general, oral vitamin B12 replacement at 1000 to 2000 mcg daily may be as effective as parenteral replacement in patients with mild to moderate deficiency or neurologic symptoms.¹¹ On the other hand, patients with SCD often require parenteral replacement of B12 due to the severity of their deficiency or neurologic symptoms, need for more rapid improvement in symptoms, and prevention of irreversible neurological deficits. ^4,11 Appropriate B12 replacement in SCD requires intensive initial therapy which may involve IM B12 1000 mcg every other day for 2 weeks and additional IM supplementation every 2 to 3 months afterward until resolution of deficiency.^4,14 IM replacement may also be considered in patients who are nonadherent to oral replacement or have an underlying gastrointestinal condition that impairs enteral absorption.^4,11

B12 deficiency is frequently undertreated and can lead to progression of disease with significant morbidity. The need for highintensity dosing of B12 replacement is crucial in patients with SCD. Failure to respond to treatment, as shown from the lack of improvement of serum markers or symptoms, likely suggests undertreatment, treatment nonadherence, iron deficiency anemia, an unidentified malabsorption syndrome, or other diagnoses. In our case, significant undertreatment, compounded by his suspected iron deficiency anemia secondary to his polycythemia vera and chronic phlebotomies, are the most likel etiologies for his lack of clinical improvement.

Multiple factors may affect the prognosis of SCD. Males aged < 50 years with absence of anemia, spinal cord atrophy, Romberg sign, Babinski sign, or sensory deficits on examination have increased likelihood of eventual recovery of signs and symptoms of SCD; those with less spinal cord involvement (< 7 cord segments), contrast enhancement, and spinal cord edema also have improved outcomes.^4,15

Conclusion

SCD is a rare but serious complication of chronic vitamin B12 deficiency that presents with a variety of neurological findings and may be easily confused with other illnesses. The condition is easily overlooked or misdiagnosed; thus, it is crucial to differentiate B12 deficiency from other common causes of neurologic symptoms. Specific findings on MRI are useful to support the clinical diagnosis of SCD and guide clinical decisions. Given the prevalence of B12 deficiency in the older adult population, clinicians should remain alert to the possibility of these conditions in patients who present with progressive neuropathy. Once a patient is diagnosed with SCD secondary to a B12 deficiency, appropriate B12 replacement is critical. Appropriate B12 replacement is aggressive and involves IM B12 1000 mcg every other day for 2 to 3 weeks, followed by additional IM administration every 2 months before transitioning to oral therapy. As seen in this case, failure to adequately replenish B12 can lead to progression or lack of resolution of SCD symptoms.

Subacute combined degeneration (SCD) is an acquired neurologic complication of vitamin B12 (cobalamin) or, rarely, vitamin B9 (folate) deficiency. SCD is characterized by progressive demyelination of the dorsal and lateral spinal cord, resulting in peripheral neuropathy; gait ataxia; impaired proprioception, vibration, and fine touch; optic neuropathy; and cognitive impairment.¹ In addition to SCD, other neurologic manifestations of B12 deficiency include dementia, depression, visual symptoms due to optic atrophy, and behavioral changes.² The prevalence of SCD in the US has not been well documented, but B12 deficiency is reported at 6% in those aged < 60 years and 20% in those > 60 years^.3

Causes of B12 and B9 deficiency include advanced age, low nutritional intake (eg, vegan diet), impaired absorption (eg, inflammatory bowel disease, autoimmune pernicious anemia, gastrectomy, pancreatic disease), alcohol use, tapeworm infection, medications, and high metabolic states.^2,4 Impaired B12 absorption is common in patients taking medications, such as metformin and proton pump inhibitors (PPI), due to suppression of ileal membrane transport and intrinsic factor activity.^5-7 B-vitamin deficiency can be exacerbated by states of increased cellular turnover, such as polycythemia vera, due to elevated DNA synthesis.

Patients may experience permanent neurologic damage when the diagnosis and treatment of SCD are missed or delayed. Early diagnosis of SCD can be challenging due to lack of specific hematologic markers. In addition, many other conditions such as diabetic neuropathy, malnutrition, toxic neuropathy, sarcoidosis, HIV, multiple sclerosis, polycythemia vera, and iron deficiency anemia have similar presentations and clinical findings.⁸ Anemia and/or macrocytosis are not specific to B12 deficiency.⁴ In addition, patients with B12 deficiency may have a normal complete blood count (CBC); those with concomitant iron deficiency may have minimal or no mean corpuscular volume (MCV) elevation.⁴ In patients suspected to have B12 deficiency based on clinical presentation or laboratory findings of macrocytosis, serum methylmalonic acid (MMA) can serve as a direct measure of B12 activity, with levels > 0.75 μmol/L almost always indicating cobalamin deficiency. ⁹ On the other hand, plasma total homocysteine (tHcy) is a sensitive marker for B12 deficiency. The active form of B12, holotranscobalamin, has also emerged as a specific measure of B12 deficiency.⁹ However, in patients with SCD, measurement of these markers may be unnecessary due to the severity of their clinical symptoms. 

The diagnosis of SCD is further complicated because not all individuals who develop B12 or B9 deficiency will develop SCD. It is difficult to determine which patients will develop SCD because the minimum level of serum B12 required for normal function is unknown, and recent studies indicate that SCD may occur even at low-normal B12 and B9 levels.^2,4,10 Commonly, a serum B12 level of < 200 pg/mL is considered deficient, while a level between 200 and 300 pg/mL is considered borderline.⁴ The goal level of serum B12 is > 300 pg/mL, which is considered normal.⁴ While serologic findings of B-vitamin deficiency are only moderately specific, radiographic findings are highly sensitive and specific for SCD. According to Briani and colleagues, the most consistent finding in SCD on magnetic resonance imaging (MRI) is a “symmetrical, abnormally increased T2 signal intensity, commonly confined to posterior or posterior and lateral columns in the cervical and thoracic spinal cord.”²

We present a case of SCD in a patient with low-normal vitamin B12 levels who presented with progressive sensorimotor deficits and vision loss. The patient was subsequently diagnosed with SCD by radiologic workup. His course was complicated by worsening neurologic deficits despite B12 replacement. The progression of his clinical symptoms demonstrates the need for prompt, aggressive B12 replacement in patients diagnosed with SCD.

Case Presentation

A 63-year-old man presented for neurologic evaluation of progressive gait disturbance, paresthesia, blurred vision, and increasing falls despite use of a walker. Pertinent medical history included polycythemia vera requiring phlebotomy for approximately 9 years, alcohol use disorder (18 servings weekly), type 2 diabetes mellitus, and a remote episode of transient ischemic attack (TIA). The patient reported a 5-year history of burning pain in all extremities. A prior physician diagnosis attributed the symptoms to polyneuropathy secondary to iron deficiency anemia in the setting of chronic phlebotomy for polycythemia vera and high erythrogenesis. He was prescribed gabapentin 600 mg 3 times daily for pain control. B12 deficiency was considered an unlikely etiology due to a low-normal serum level of 305 pg/mL (reference range, 190-950 pg/mL) and normocytosis, with MCV of 88 fL (reference range, 80-100 fL). The patient also reported a 3-year history of blurred vision, which was initially attributed to be secondary to diabetic retinopathy. One week prior to presenting to our clinic, he was evaluated by ophthalmology for new-onset, bilateral central visual field defects, and he was diagnosed with nutritional optic neuropathy.

Previous cardiac evaluation failed to provide a diagnosis for syncopal episodes. MRI of the brain revealed nonspecific white matter changes consistent with chronic microvascular ischemic disease. Electromyography was limited due to pain but showed severe peripheral neuropathy. Laboratory results showed megalocytosis, low-normal serum B12 levels, and low serum folate levels (Table 2). The patient was diagnosed with polyneuropathy and was given intramuscular (IM) vitamin B12 1000 mcg once and a daily multivitamin (containing 25 mcg of B12). He was counseled on alcohol abstinence and medication adherence and was scheduled for follow-up in 3 months. He continued outpatient phlebotomy every 6 weeks for polycythemia.

At 3-month follow-up, the patient reported medication adherence, continued alcohol use, and worsening of symptoms. Falls, which now occurred 2 to 3 times weekly despite proper use of a walker, were described as sudden loss of bilateral lower extremity strength without loss of consciousness, palpitations, or other prodrome. Laboratory results showed minimal changes. Physical examination of the patient demonstrated similar deficits as on initial presentation. The patient received one additional B12 1000 mcg IM. Gabapentin was replaced with pregabalin 75 mg twice daily due to persistent uncontrolled pain and paresthesia. The patient was scheduled for a 3-month followup (6 months from initial visit) and repeat serology.

At 6-month follow-up, the patient showed continued progression of disease with significant difficulty using the walker, worsening falls, and wheelchair use required. Physical examination showed decreased sensation bilaterally up to the knees, absent bilateral patellar and Achilles reflexes, and unsteady gait. Laboratory results showed persistent subclinical B12 deficiency. MRI of the brain and spine showed high T2 signaling in a pattern highly specific for SCD. A formal diagnosis of SCD was made. The patient received an additional B12 1000 mcg IM once. Follow-up phone call with the patient 1 month later revealed no progression or improvement of symptoms.

Radiographic Findings

MRI of the cervical and thoracic spine demonstrated abnormal high T2 signal starting from C2 and extending along the course of the cervical and thoracic spinal cord (Figure). MRI in SCD classically shows symmetric, bilateral high T2 signal within the dorsal columns; on axial images, there is typically an inverted “V” sign.^2,4 There can also be abnormal cerebral white matter change; however, MRI of the brain in this patient did not show any abnormalities.2 The imaging differential for this appearance includes other metabolic deficiencies/toxicities: copper deficiency; vitamin E deficiency; methotrexateinduced myelopathy, and infectious causes: HIV vacuolar myelopathy; and neurosyphilis (tabes dorsalis).⁴

Discussion

This case demonstrates the clinical and radiographic findings of SCD and underscores the need for high-intensity dosing of B12 replacement in patients with SCD to prevent progression of the disease and development of morbidities.

Symptoms of SCD may manifest even when the vitamin levels are in low-normal levels. Its presentation is often nonspecific, thus radiologic workup is beneficial to elucidate the clinical picture. We support the use of spinal MRI in patients with clinical suspicion of SCD to help rule out other causes of myelopathy. However, an MRI is not indicated in all patients with B12 deficiency, especially those without myelopathic symptoms. Additionally, follow-up spinal MRIs are useful in monitoring the progression or improvement of SCD after B12 replacement.² It is important to note that the MRI findings in SCD are not specific to B12 deficiency; other causes may present with similar radiographic findings.⁴ Therefore, radiologic findings must be correlated with a patient’s clinical presentation.

B12 replacement improves and may resolve clinical symptoms and abnormal radiographic findings of SCD. The treatment duration of B12 deficiency depends on the underlying etiology. Reversible causes, such as metformin use > 4 months, PPI use > 12 months, and dietary deficiency, require treatment until appropriate levels are reached and symptoms are resolved.^4,11 The need for chronic metformin and PPI use should also be reassessed regularly. In patients who require long-term metformin use, IM administration of B12 1000 mcg annually should be considered, which will ensure adequate storage for more than 1 year.^12,13 In patients who require long-term PPI use, the risk and benefits of continued use should be measured, and if needed, the lowest possible effective PPI dose is recommended.¹⁴ Irreversible causes of B12 deficiency, such as advanced age, prior gastrectomy, chronic pancreatitis, or autoimmune pernicious anemia, require lifelong supplementation of B12.^4,11

In general, oral vitamin B12 replacement at 1000 to 2000 mcg daily may be as effective as parenteral replacement in patients with mild to moderate deficiency or neurologic symptoms.¹¹ On the other hand, patients with SCD often require parenteral replacement of B12 due to the severity of their deficiency or neurologic symptoms, need for more rapid improvement in symptoms, and prevention of irreversible neurological deficits. ^4,11 Appropriate B12 replacement in SCD requires intensive initial therapy which may involve IM B12 1000 mcg every other day for 2 weeks and additional IM supplementation every 2 to 3 months afterward until resolution of deficiency.^4,14 IM replacement may also be considered in patients who are nonadherent to oral replacement or have an underlying gastrointestinal condition that impairs enteral absorption.^4,11

B12 deficiency is frequently undertreated and can lead to progression of disease with significant morbidity. The need for highintensity dosing of B12 replacement is crucial in patients with SCD. Failure to respond to treatment, as shown from the lack of improvement of serum markers or symptoms, likely suggests undertreatment, treatment nonadherence, iron deficiency anemia, an unidentified malabsorption syndrome, or other diagnoses. In our case, significant undertreatment, compounded by his suspected iron deficiency anemia secondary to his polycythemia vera and chronic phlebotomies, are the most likel etiologies for his lack of clinical improvement.

Multiple factors may affect the prognosis of SCD. Males aged < 50 years with absence of anemia, spinal cord atrophy, Romberg sign, Babinski sign, or sensory deficits on examination have increased likelihood of eventual recovery of signs and symptoms of SCD; those with less spinal cord involvement (< 7 cord segments), contrast enhancement, and spinal cord edema also have improved outcomes.^4,15

Conclusion

SCD is a rare but serious complication of chronic vitamin B12 deficiency that presents with a variety of neurological findings and may be easily confused with other illnesses. The condition is easily overlooked or misdiagnosed; thus, it is crucial to differentiate B12 deficiency from other common causes of neurologic symptoms. Specific findings on MRI are useful to support the clinical diagnosis of SCD and guide clinical decisions. Given the prevalence of B12 deficiency in the older adult population, clinicians should remain alert to the possibility of these conditions in patients who present with progressive neuropathy. Once a patient is diagnosed with SCD secondary to a B12 deficiency, appropriate B12 replacement is critical. Appropriate B12 replacement is aggressive and involves IM B12 1000 mcg every other day for 2 to 3 weeks, followed by additional IM administration every 2 months before transitioning to oral therapy. As seen in this case, failure to adequately replenish B12 can lead to progression or lack of resolution of SCD symptoms.

Subacute combined degeneration (SCD) is an acquired neurologic complication of vitamin B12 (cobalamin) or, rarely, vitamin B9 (folate) deficiency. SCD is characterized by progressive demyelination of the dorsal and lateral spinal cord, resulting in peripheral neuropathy; gait ataxia; impaired proprioception, vibration, and fine touch; optic neuropathy; and cognitive impairment.¹ In addition to SCD, other neurologic manifestations of B12 deficiency include dementia, depression, visual symptoms due to optic atrophy, and behavioral changes.² The prevalence of SCD in the US has not been well documented, but B12 deficiency is reported at 6% in those aged < 60 years and 20% in those > 60 years^.3

Causes of B12 and B9 deficiency include advanced age, low nutritional intake (eg, vegan diet), impaired absorption (eg, inflammatory bowel disease, autoimmune pernicious anemia, gastrectomy, pancreatic disease), alcohol use, tapeworm infection, medications, and high metabolic states.^2,4 Impaired B12 absorption is common in patients taking medications, such as metformin and proton pump inhibitors (PPI), due to suppression of ileal membrane transport and intrinsic factor activity.^5-7 B-vitamin deficiency can be exacerbated by states of increased cellular turnover, such as polycythemia vera, due to elevated DNA synthesis.

Patients may experience permanent neurologic damage when the diagnosis and treatment of SCD are missed or delayed. Early diagnosis of SCD can be challenging due to lack of specific hematologic markers. In addition, many other conditions such as diabetic neuropathy, malnutrition, toxic neuropathy, sarcoidosis, HIV, multiple sclerosis, polycythemia vera, and iron deficiency anemia have similar presentations and clinical findings.⁸ Anemia and/or macrocytosis are not specific to B12 deficiency.⁴ In addition, patients with B12 deficiency may have a normal complete blood count (CBC); those with concomitant iron deficiency may have minimal or no mean corpuscular volume (MCV) elevation.⁴ In patients suspected to have B12 deficiency based on clinical presentation or laboratory findings of macrocytosis, serum methylmalonic acid (MMA) can serve as a direct measure of B12 activity, with levels > 0.75 μmol/L almost always indicating cobalamin deficiency. ⁹ On the other hand, plasma total homocysteine (tHcy) is a sensitive marker for B12 deficiency. The active form of B12, holotranscobalamin, has also emerged as a specific measure of B12 deficiency.⁹ However, in patients with SCD, measurement of these markers may be unnecessary due to the severity of their clinical symptoms. 

The diagnosis of SCD is further complicated because not all individuals who develop B12 or B9 deficiency will develop SCD. It is difficult to determine which patients will develop SCD because the minimum level of serum B12 required for normal function is unknown, and recent studies indicate that SCD may occur even at low-normal B12 and B9 levels.^2,4,10 Commonly, a serum B12 level of < 200 pg/mL is considered deficient, while a level between 200 and 300 pg/mL is considered borderline.⁴ The goal level of serum B12 is > 300 pg/mL, which is considered normal.⁴ While serologic findings of B-vitamin deficiency are only moderately specific, radiographic findings are highly sensitive and specific for SCD. According to Briani and colleagues, the most consistent finding in SCD on magnetic resonance imaging (MRI) is a “symmetrical, abnormally increased T2 signal intensity, commonly confined to posterior or posterior and lateral columns in the cervical and thoracic spinal cord.”²

We present a case of SCD in a patient with low-normal vitamin B12 levels who presented with progressive sensorimotor deficits and vision loss. The patient was subsequently diagnosed with SCD by radiologic workup. His course was complicated by worsening neurologic deficits despite B12 replacement. The progression of his clinical symptoms demonstrates the need for prompt, aggressive B12 replacement in patients diagnosed with SCD.

Case Presentation

A 63-year-old man presented for neurologic evaluation of progressive gait disturbance, paresthesia, blurred vision, and increasing falls despite use of a walker. Pertinent medical history included polycythemia vera requiring phlebotomy for approximately 9 years, alcohol use disorder (18 servings weekly), type 2 diabetes mellitus, and a remote episode of transient ischemic attack (TIA). The patient reported a 5-year history of burning pain in all extremities. A prior physician diagnosis attributed the symptoms to polyneuropathy secondary to iron deficiency anemia in the setting of chronic phlebotomy for polycythemia vera and high erythrogenesis. He was prescribed gabapentin 600 mg 3 times daily for pain control. B12 deficiency was considered an unlikely etiology due to a low-normal serum level of 305 pg/mL (reference range, 190-950 pg/mL) and normocytosis, with MCV of 88 fL (reference range, 80-100 fL). The patient also reported a 3-year history of blurred vision, which was initially attributed to be secondary to diabetic retinopathy. One week prior to presenting to our clinic, he was evaluated by ophthalmology for new-onset, bilateral central visual field defects, and he was diagnosed with nutritional optic neuropathy.

Previous cardiac evaluation failed to provide a diagnosis for syncopal episodes. MRI of the brain revealed nonspecific white matter changes consistent with chronic microvascular ischemic disease. Electromyography was limited due to pain but showed severe peripheral neuropathy. Laboratory results showed megalocytosis, low-normal serum B12 levels, and low serum folate levels (Table 2). The patient was diagnosed with polyneuropathy and was given intramuscular (IM) vitamin B12 1000 mcg once and a daily multivitamin (containing 25 mcg of B12). He was counseled on alcohol abstinence and medication adherence and was scheduled for follow-up in 3 months. He continued outpatient phlebotomy every 6 weeks for polycythemia.

At 3-month follow-up, the patient reported medication adherence, continued alcohol use, and worsening of symptoms. Falls, which now occurred 2 to 3 times weekly despite proper use of a walker, were described as sudden loss of bilateral lower extremity strength without loss of consciousness, palpitations, or other prodrome. Laboratory results showed minimal changes. Physical examination of the patient demonstrated similar deficits as on initial presentation. The patient received one additional B12 1000 mcg IM. Gabapentin was replaced with pregabalin 75 mg twice daily due to persistent uncontrolled pain and paresthesia. The patient was scheduled for a 3-month followup (6 months from initial visit) and repeat serology.

At 6-month follow-up, the patient showed continued progression of disease with significant difficulty using the walker, worsening falls, and wheelchair use required. Physical examination showed decreased sensation bilaterally up to the knees, absent bilateral patellar and Achilles reflexes, and unsteady gait. Laboratory results showed persistent subclinical B12 deficiency. MRI of the brain and spine showed high T2 signaling in a pattern highly specific for SCD. A formal diagnosis of SCD was made. The patient received an additional B12 1000 mcg IM once. Follow-up phone call with the patient 1 month later revealed no progression or improvement of symptoms.

Radiographic Findings

MRI of the cervical and thoracic spine demonstrated abnormal high T2 signal starting from C2 and extending along the course of the cervical and thoracic spinal cord (Figure). MRI in SCD classically shows symmetric, bilateral high T2 signal within the dorsal columns; on axial images, there is typically an inverted “V” sign.^2,4 There can also be abnormal cerebral white matter change; however, MRI of the brain in this patient did not show any abnormalities.2 The imaging differential for this appearance includes other metabolic deficiencies/toxicities: copper deficiency; vitamin E deficiency; methotrexateinduced myelopathy, and infectious causes: HIV vacuolar myelopathy; and neurosyphilis (tabes dorsalis).⁴

Discussion

This case demonstrates the clinical and radiographic findings of SCD and underscores the need for high-intensity dosing of B12 replacement in patients with SCD to prevent progression of the disease and development of morbidities.

Symptoms of SCD may manifest even when the vitamin levels are in low-normal levels. Its presentation is often nonspecific, thus radiologic workup is beneficial to elucidate the clinical picture. We support the use of spinal MRI in patients with clinical suspicion of SCD to help rule out other causes of myelopathy. However, an MRI is not indicated in all patients with B12 deficiency, especially those without myelopathic symptoms. Additionally, follow-up spinal MRIs are useful in monitoring the progression or improvement of SCD after B12 replacement.² It is important to note that the MRI findings in SCD are not specific to B12 deficiency; other causes may present with similar radiographic findings.⁴ Therefore, radiologic findings must be correlated with a patient’s clinical presentation.

B12 replacement improves and may resolve clinical symptoms and abnormal radiographic findings of SCD. The treatment duration of B12 deficiency depends on the underlying etiology. Reversible causes, such as metformin use > 4 months, PPI use > 12 months, and dietary deficiency, require treatment until appropriate levels are reached and symptoms are resolved.^4,11 The need for chronic metformin and PPI use should also be reassessed regularly. In patients who require long-term metformin use, IM administration of B12 1000 mcg annually should be considered, which will ensure adequate storage for more than 1 year.^12,13 In patients who require long-term PPI use, the risk and benefits of continued use should be measured, and if needed, the lowest possible effective PPI dose is recommended.¹⁴ Irreversible causes of B12 deficiency, such as advanced age, prior gastrectomy, chronic pancreatitis, or autoimmune pernicious anemia, require lifelong supplementation of B12.^4,11

In general, oral vitamin B12 replacement at 1000 to 2000 mcg daily may be as effective as parenteral replacement in patients with mild to moderate deficiency or neurologic symptoms.¹¹ On the other hand, patients with SCD often require parenteral replacement of B12 due to the severity of their deficiency or neurologic symptoms, need for more rapid improvement in symptoms, and prevention of irreversible neurological deficits. ^4,11 Appropriate B12 replacement in SCD requires intensive initial therapy which may involve IM B12 1000 mcg every other day for 2 weeks and additional IM supplementation every 2 to 3 months afterward until resolution of deficiency.^4,14 IM replacement may also be considered in patients who are nonadherent to oral replacement or have an underlying gastrointestinal condition that impairs enteral absorption.^4,11

B12 deficiency is frequently undertreated and can lead to progression of disease with significant morbidity. The need for highintensity dosing of B12 replacement is crucial in patients with SCD. Failure to respond to treatment, as shown from the lack of improvement of serum markers or symptoms, likely suggests undertreatment, treatment nonadherence, iron deficiency anemia, an unidentified malabsorption syndrome, or other diagnoses. In our case, significant undertreatment, compounded by his suspected iron deficiency anemia secondary to his polycythemia vera and chronic phlebotomies, are the most likel etiologies for his lack of clinical improvement.

Multiple factors may affect the prognosis of SCD. Males aged < 50 years with absence of anemia, spinal cord atrophy, Romberg sign, Babinski sign, or sensory deficits on examination have increased likelihood of eventual recovery of signs and symptoms of SCD; those with less spinal cord involvement (< 7 cord segments), contrast enhancement, and spinal cord edema also have improved outcomes.^4,15

Conclusion

SCD is a rare but serious complication of chronic vitamin B12 deficiency that presents with a variety of neurological findings and may be easily confused with other illnesses. The condition is easily overlooked or misdiagnosed; thus, it is crucial to differentiate B12 deficiency from other common causes of neurologic symptoms. Specific findings on MRI are useful to support the clinical diagnosis of SCD and guide clinical decisions. Given the prevalence of B12 deficiency in the older adult population, clinicians should remain alert to the possibility of these conditions in patients who present with progressive neuropathy. Once a patient is diagnosed with SCD secondary to a B12 deficiency, appropriate B12 replacement is critical. Appropriate B12 replacement is aggressive and involves IM B12 1000 mcg every other day for 2 to 3 weeks, followed by additional IM administration every 2 months before transitioning to oral therapy. As seen in this case, failure to adequately replenish B12 can lead to progression or lack of resolution of SCD symptoms.

In his first State of the Union address in early March, President Joe Biden broached a tax policy question that neuroscientists and pediatricians also see as a scientific one.

President Biden urged lawmakers to extend the Child Tax Credit “so no one has to raise a family in poverty.”

Apart from the usual political and budgetary calculus, physicians and social scientists are actively examining the ramifications that such policies could have on child development and long-term health outcomes.

To do so, they have turned to brain scans and rigorous studies to better understand the effects of being raised in poverty and whether giving families more cash makes a difference.

Initial results from an ongoing study known as Baby’s First Years suggest that providing extra money to mothers may influence brain activity in infants in ways that reflect improvements in cognitive ability.

Researchers, doctors, and advocates say the findings cement the case for policies such as the expanded Child Tax Credit. Others argue that reducing child poverty is a social good on its own, regardless of what brain scans show.

The new findings were published Jan. 24 in Proceedings of the National Academy of Sciences (PNAS), as lawmakers were weighing whether to resume an expansion of the tax credit, which had temporarily provided monthly payments akin to the $333 a month looked at in the study.

The expiration of the expanded credit in December left some 3.6 million more children in poverty, bringing the total number to more than 12.5 million and pushing the child poverty rate to 17%.

Philanthropists and research teams have partnered to conduct other guaranteed income experiments around the United States, including one in New York called the Bridge Project, which is evaluating different levels of financial support for mothers with babies.

Some mothers are receiving $500 per month, others twice that amount.

Angelina Matos, 18, receives $1,000 a month, allowing her to attend college and pay for necessities like diapers, clothes, and toys for her nearly 1-year-old daughter.

As one of 600 mothers participating in the project, Ms. Matos periodically answers questions about her daughter’s progress, like whether she is eating solid foods.

Megha Agarwal, BS, executive director of the Bridge Project and its funder the Monarch Foundation, said she was thrilled to see the early results from Baby’s First Years. “We are looking for ways in which we can strengthen our future generations,” she said. “It is exciting to see that direct cash and a guaranteed income might be part of the solution.”
 

A scientific perspective

Growing up in poverty is well-known to increase the likelihood of lower academic achievement and chronic conditions such as asthma and obesity. Relative to higher income levels, poverty is associated with differences in the structure and function of the developing brain. But whether interventions to reduce poverty can influence how newborns develop is less clear.

“There would be plenty of people who would say, ‘Well, it’s not poverty. It’s all the things associated with poverty. It’s the choices you make that are actually leading to differences in outcomes,’” said Kimberly Noble, MD, PhD, a neuroscientist at Columbia University, New York, and a coauthor of the PNAS study. Regardless of ideology, she said, the best way to address that question from a scientific perspective is through a randomized controlled trial.

“You can’t, and wouldn’t want to, randomize kids to living in poverty or not, but you can take a group of families who are unfortunately living in poverty and randomize them to receive different levels of economic support,” Dr. Noble said.
 

$333 per month

Baby’s First Years has done just that. Researchers gave 1,000 low-income mothers with newborns a cash gift of $333 per month or a smaller gift of $20 per month, disbursed on debit cards, starting in 2018. Participants live in four metropolitan areas – New York City, greater New Orleans, Minneapolis-Saint Paul, and Omaha – and were recruited at the time of their child’s birth. Investigators currently have funding to continue the cash support until the children turn 4 years old.

When the infants were about 1 year old, investigators measured their resting brain activity using EEG.

The COVID-19 pandemic disrupted the ability to conduct in-person testing, so the number of children with EEG data was smaller than planned. Still, the researchers analyzed data from 251 kids in the group that received the smaller cash gift and 184 kids in the group that received the larger amount. Patterns of brain activity largely tracked those seen in earlier observational studies: more mid- and high-frequency activity (alpha-, beta-, and gamma-bands) and less low-frequency activity (theta-bands) among children in the households that received more money.

Faster brain activity is associated with better scores on measures of language, cognition, and social-emotional development. Slower activity has been linked to problems with behavior, attention, and learning.

“We predicted that our poverty reduction intervention would mitigate the neurobiological signal of poverty,” Dr. Noble said. “And that’s exactly what we report in this paper.”

The study builds on decades of work showing that poverty can harm child development, said Joan Luby, MD, with Washington University School of Medicine, St. Louis, who served as a peer reviewer for the PNAS paper.

More follow-up data and information about the babies’ cognitive function and behavior over time are needed, but the study shows a signal that cannot be ignored, Dr. Luby said.

Dr. Luby began exploring the effects of poverty on brain development in earnest while working on a study that was meant to focus on another variable altogether: early childhood depression. The investigators on that 2013 study found that poverty had a “very, very big effect in our sample, and we realized we had to learn more about it,” she said.

The American Academy of Pediatrics likewise has recognized poverty as an important determinant of health. A policy statement that the group published in 2016 and reaffirmed in 2021 outlines ways pediatricians and social programs can address poverty.

Benard Dreyer, MD, director of pediatrics at Bellevue Hospital, New York, was president of the AAP when it published this guidance.

One lingering question has been how much low income worsens educational outcomes, Dr. Dreyer said. Perhaps other issues, such as single motherhood, a lack of parental education, or living in neighborhoods with more crime may be the cause. If so, simply giving more money to parents might not overcome those barriers.

Natural experiments have hinted that money itself can influence child development. For example, families on an American Indian reservation in North Carolina started receiving a share of casino profits after a casino opened there.

The new infusion of funds arrived in the middle of a study in which researchers were examining the development of mental illness in children.

Among children who were no longer poor as a result of the casino payments, symptoms of conduct and oppositional defiant disorders decreased.
 

Guaranteeing income

How extra money affects families across different levels of income also interests researchers and policymakers.

“One of the policy debates in Washington is to what degree should it be to everyone,” Ajay Chaudry, PhD, a research scholar at New York University who is advising the Bridge Project, said.

Guaranteed income programs may need to be available to most of the population out of political necessity, even if the benefits turn out to be the most pronounced at lower income levels, added Dr. Chaudry, who served in the Obama administration as deputy assistant secretary for human services policy.

If giving moms money affects babies’ brains, Dr. Dreyer pointed to two pathways that could explain the link: more resources and less family stress.

Money helps families buy toys and books, which in turn could support a child’s cognitive development. Meanwhile, low-income mothers and fathers may experience worries about eviction, adequate food, and the loss of heat and electricity, which could detract from their ability to parent.

Of course, many ways to support a child’s development do not require money. Engaging with children in a warm and nurturing way, having conversations with them, and reading with them are all important.

If the pattern in the PNAS study holds, individual experiences and outcomes will still vary, Dr. Noble said. Many children in the group that received the smaller gift had fast-paced brain activity, whereas some babies in the group that received the larger gift showed slower brain activity. Knowing family income would not allow you to accurately predict anything about an individual child’s brain, Dr. Noble said.

“I certainly wouldn’t want the message to be that money is the only thing that matters,” Dr. Noble said. “Money is something that can be easily manipulated by policy, which is why I think this is important.”

For the 18-year-old new mom Ms. Matos, accepting assistance “makes me feel less of myself. But honestly, I feel like mothers shouldn’t be afraid to ask for help or reach out for help or apply to programs like these.”

The sources reported a variety of funders, including federal agencies and foundations and donors.

A version of this article first appeared on Medscape.com.

In his first State of the Union address in early March, President Joe Biden broached a tax policy question that neuroscientists and pediatricians also see as a scientific one.

President Biden urged lawmakers to extend the Child Tax Credit “so no one has to raise a family in poverty.”

Apart from the usual political and budgetary calculus, physicians and social scientists are actively examining the ramifications that such policies could have on child development and long-term health outcomes.

To do so, they have turned to brain scans and rigorous studies to better understand the effects of being raised in poverty and whether giving families more cash makes a difference.

Initial results from an ongoing study known as Baby’s First Years suggest that providing extra money to mothers may influence brain activity in infants in ways that reflect improvements in cognitive ability.

Researchers, doctors, and advocates say the findings cement the case for policies such as the expanded Child Tax Credit. Others argue that reducing child poverty is a social good on its own, regardless of what brain scans show.

The new findings were published Jan. 24 in Proceedings of the National Academy of Sciences (PNAS), as lawmakers were weighing whether to resume an expansion of the tax credit, which had temporarily provided monthly payments akin to the $333 a month looked at in the study.

The expiration of the expanded credit in December left some 3.6 million more children in poverty, bringing the total number to more than 12.5 million and pushing the child poverty rate to 17%.

Philanthropists and research teams have partnered to conduct other guaranteed income experiments around the United States, including one in New York called the Bridge Project, which is evaluating different levels of financial support for mothers with babies.

Some mothers are receiving $500 per month, others twice that amount.

Angelina Matos, 18, receives $1,000 a month, allowing her to attend college and pay for necessities like diapers, clothes, and toys for her nearly 1-year-old daughter.

As one of 600 mothers participating in the project, Ms. Matos periodically answers questions about her daughter’s progress, like whether she is eating solid foods.

Megha Agarwal, BS, executive director of the Bridge Project and its funder the Monarch Foundation, said she was thrilled to see the early results from Baby’s First Years. “We are looking for ways in which we can strengthen our future generations,” she said. “It is exciting to see that direct cash and a guaranteed income might be part of the solution.”
 

A scientific perspective

Growing up in poverty is well-known to increase the likelihood of lower academic achievement and chronic conditions such as asthma and obesity. Relative to higher income levels, poverty is associated with differences in the structure and function of the developing brain. But whether interventions to reduce poverty can influence how newborns develop is less clear.

“There would be plenty of people who would say, ‘Well, it’s not poverty. It’s all the things associated with poverty. It’s the choices you make that are actually leading to differences in outcomes,’” said Kimberly Noble, MD, PhD, a neuroscientist at Columbia University, New York, and a coauthor of the PNAS study. Regardless of ideology, she said, the best way to address that question from a scientific perspective is through a randomized controlled trial.

“You can’t, and wouldn’t want to, randomize kids to living in poverty or not, but you can take a group of families who are unfortunately living in poverty and randomize them to receive different levels of economic support,” Dr. Noble said.
 

$333 per month

Baby’s First Years has done just that. Researchers gave 1,000 low-income mothers with newborns a cash gift of $333 per month or a smaller gift of $20 per month, disbursed on debit cards, starting in 2018. Participants live in four metropolitan areas – New York City, greater New Orleans, Minneapolis-Saint Paul, and Omaha – and were recruited at the time of their child’s birth. Investigators currently have funding to continue the cash support until the children turn 4 years old.

When the infants were about 1 year old, investigators measured their resting brain activity using EEG.

The COVID-19 pandemic disrupted the ability to conduct in-person testing, so the number of children with EEG data was smaller than planned. Still, the researchers analyzed data from 251 kids in the group that received the smaller cash gift and 184 kids in the group that received the larger amount. Patterns of brain activity largely tracked those seen in earlier observational studies: more mid- and high-frequency activity (alpha-, beta-, and gamma-bands) and less low-frequency activity (theta-bands) among children in the households that received more money.

Faster brain activity is associated with better scores on measures of language, cognition, and social-emotional development. Slower activity has been linked to problems with behavior, attention, and learning.

“We predicted that our poverty reduction intervention would mitigate the neurobiological signal of poverty,” Dr. Noble said. “And that’s exactly what we report in this paper.”

The study builds on decades of work showing that poverty can harm child development, said Joan Luby, MD, with Washington University School of Medicine, St. Louis, who served as a peer reviewer for the PNAS paper.

More follow-up data and information about the babies’ cognitive function and behavior over time are needed, but the study shows a signal that cannot be ignored, Dr. Luby said.

Dr. Luby began exploring the effects of poverty on brain development in earnest while working on a study that was meant to focus on another variable altogether: early childhood depression. The investigators on that 2013 study found that poverty had a “very, very big effect in our sample, and we realized we had to learn more about it,” she said.

The American Academy of Pediatrics likewise has recognized poverty as an important determinant of health. A policy statement that the group published in 2016 and reaffirmed in 2021 outlines ways pediatricians and social programs can address poverty.

Benard Dreyer, MD, director of pediatrics at Bellevue Hospital, New York, was president of the AAP when it published this guidance.

One lingering question has been how much low income worsens educational outcomes, Dr. Dreyer said. Perhaps other issues, such as single motherhood, a lack of parental education, or living in neighborhoods with more crime may be the cause. If so, simply giving more money to parents might not overcome those barriers.

Natural experiments have hinted that money itself can influence child development. For example, families on an American Indian reservation in North Carolina started receiving a share of casino profits after a casino opened there.

The new infusion of funds arrived in the middle of a study in which researchers were examining the development of mental illness in children.

Among children who were no longer poor as a result of the casino payments, symptoms of conduct and oppositional defiant disorders decreased.
 

Guaranteeing income

How extra money affects families across different levels of income also interests researchers and policymakers.

“One of the policy debates in Washington is to what degree should it be to everyone,” Ajay Chaudry, PhD, a research scholar at New York University who is advising the Bridge Project, said.

Guaranteed income programs may need to be available to most of the population out of political necessity, even if the benefits turn out to be the most pronounced at lower income levels, added Dr. Chaudry, who served in the Obama administration as deputy assistant secretary for human services policy.

If giving moms money affects babies’ brains, Dr. Dreyer pointed to two pathways that could explain the link: more resources and less family stress.

Money helps families buy toys and books, which in turn could support a child’s cognitive development. Meanwhile, low-income mothers and fathers may experience worries about eviction, adequate food, and the loss of heat and electricity, which could detract from their ability to parent.

Of course, many ways to support a child’s development do not require money. Engaging with children in a warm and nurturing way, having conversations with them, and reading with them are all important.

If the pattern in the PNAS study holds, individual experiences and outcomes will still vary, Dr. Noble said. Many children in the group that received the smaller gift had fast-paced brain activity, whereas some babies in the group that received the larger gift showed slower brain activity. Knowing family income would not allow you to accurately predict anything about an individual child’s brain, Dr. Noble said.

“I certainly wouldn’t want the message to be that money is the only thing that matters,” Dr. Noble said. “Money is something that can be easily manipulated by policy, which is why I think this is important.”

For the 18-year-old new mom Ms. Matos, accepting assistance “makes me feel less of myself. But honestly, I feel like mothers shouldn’t be afraid to ask for help or reach out for help or apply to programs like these.”

The sources reported a variety of funders, including federal agencies and foundations and donors.

A version of this article first appeared on Medscape.com.

In his first State of the Union address in early March, President Joe Biden broached a tax policy question that neuroscientists and pediatricians also see as a scientific one.

President Biden urged lawmakers to extend the Child Tax Credit “so no one has to raise a family in poverty.”

Apart from the usual political and budgetary calculus, physicians and social scientists are actively examining the ramifications that such policies could have on child development and long-term health outcomes.

To do so, they have turned to brain scans and rigorous studies to better understand the effects of being raised in poverty and whether giving families more cash makes a difference.

Initial results from an ongoing study known as Baby’s First Years suggest that providing extra money to mothers may influence brain activity in infants in ways that reflect improvements in cognitive ability.

Researchers, doctors, and advocates say the findings cement the case for policies such as the expanded Child Tax Credit. Others argue that reducing child poverty is a social good on its own, regardless of what brain scans show.

The new findings were published Jan. 24 in Proceedings of the National Academy of Sciences (PNAS), as lawmakers were weighing whether to resume an expansion of the tax credit, which had temporarily provided monthly payments akin to the $333 a month looked at in the study.

The expiration of the expanded credit in December left some 3.6 million more children in poverty, bringing the total number to more than 12.5 million and pushing the child poverty rate to 17%.

Philanthropists and research teams have partnered to conduct other guaranteed income experiments around the United States, including one in New York called the Bridge Project, which is evaluating different levels of financial support for mothers with babies.

Some mothers are receiving $500 per month, others twice that amount.

Angelina Matos, 18, receives $1,000 a month, allowing her to attend college and pay for necessities like diapers, clothes, and toys for her nearly 1-year-old daughter.

As one of 600 mothers participating in the project, Ms. Matos periodically answers questions about her daughter’s progress, like whether she is eating solid foods.

Megha Agarwal, BS, executive director of the Bridge Project and its funder the Monarch Foundation, said she was thrilled to see the early results from Baby’s First Years. “We are looking for ways in which we can strengthen our future generations,” she said. “It is exciting to see that direct cash and a guaranteed income might be part of the solution.”
 

A scientific perspective

Growing up in poverty is well-known to increase the likelihood of lower academic achievement and chronic conditions such as asthma and obesity. Relative to higher income levels, poverty is associated with differences in the structure and function of the developing brain. But whether interventions to reduce poverty can influence how newborns develop is less clear.

“There would be plenty of people who would say, ‘Well, it’s not poverty. It’s all the things associated with poverty. It’s the choices you make that are actually leading to differences in outcomes,’” said Kimberly Noble, MD, PhD, a neuroscientist at Columbia University, New York, and a coauthor of the PNAS study. Regardless of ideology, she said, the best way to address that question from a scientific perspective is through a randomized controlled trial.

“You can’t, and wouldn’t want to, randomize kids to living in poverty or not, but you can take a group of families who are unfortunately living in poverty and randomize them to receive different levels of economic support,” Dr. Noble said.
 

$333 per month

Baby’s First Years has done just that. Researchers gave 1,000 low-income mothers with newborns a cash gift of $333 per month or a smaller gift of $20 per month, disbursed on debit cards, starting in 2018. Participants live in four metropolitan areas – New York City, greater New Orleans, Minneapolis-Saint Paul, and Omaha – and were recruited at the time of their child’s birth. Investigators currently have funding to continue the cash support until the children turn 4 years old.

When the infants were about 1 year old, investigators measured their resting brain activity using EEG.

The COVID-19 pandemic disrupted the ability to conduct in-person testing, so the number of children with EEG data was smaller than planned. Still, the researchers analyzed data from 251 kids in the group that received the smaller cash gift and 184 kids in the group that received the larger amount. Patterns of brain activity largely tracked those seen in earlier observational studies: more mid- and high-frequency activity (alpha-, beta-, and gamma-bands) and less low-frequency activity (theta-bands) among children in the households that received more money.

Faster brain activity is associated with better scores on measures of language, cognition, and social-emotional development. Slower activity has been linked to problems with behavior, attention, and learning.

“We predicted that our poverty reduction intervention would mitigate the neurobiological signal of poverty,” Dr. Noble said. “And that’s exactly what we report in this paper.”

The study builds on decades of work showing that poverty can harm child development, said Joan Luby, MD, with Washington University School of Medicine, St. Louis, who served as a peer reviewer for the PNAS paper.

More follow-up data and information about the babies’ cognitive function and behavior over time are needed, but the study shows a signal that cannot be ignored, Dr. Luby said.

Dr. Luby began exploring the effects of poverty on brain development in earnest while working on a study that was meant to focus on another variable altogether: early childhood depression. The investigators on that 2013 study found that poverty had a “very, very big effect in our sample, and we realized we had to learn more about it,” she said.

The American Academy of Pediatrics likewise has recognized poverty as an important determinant of health. A policy statement that the group published in 2016 and reaffirmed in 2021 outlines ways pediatricians and social programs can address poverty.

Benard Dreyer, MD, director of pediatrics at Bellevue Hospital, New York, was president of the AAP when it published this guidance.

One lingering question has been how much low income worsens educational outcomes, Dr. Dreyer said. Perhaps other issues, such as single motherhood, a lack of parental education, or living in neighborhoods with more crime may be the cause. If so, simply giving more money to parents might not overcome those barriers.

Natural experiments have hinted that money itself can influence child development. For example, families on an American Indian reservation in North Carolina started receiving a share of casino profits after a casino opened there.

The new infusion of funds arrived in the middle of a study in which researchers were examining the development of mental illness in children.

Among children who were no longer poor as a result of the casino payments, symptoms of conduct and oppositional defiant disorders decreased.
 

Guaranteeing income

How extra money affects families across different levels of income also interests researchers and policymakers.

“One of the policy debates in Washington is to what degree should it be to everyone,” Ajay Chaudry, PhD, a research scholar at New York University who is advising the Bridge Project, said.

Guaranteed income programs may need to be available to most of the population out of political necessity, even if the benefits turn out to be the most pronounced at lower income levels, added Dr. Chaudry, who served in the Obama administration as deputy assistant secretary for human services policy.

If giving moms money affects babies’ brains, Dr. Dreyer pointed to two pathways that could explain the link: more resources and less family stress.

Money helps families buy toys and books, which in turn could support a child’s cognitive development. Meanwhile, low-income mothers and fathers may experience worries about eviction, adequate food, and the loss of heat and electricity, which could detract from their ability to parent.

Of course, many ways to support a child’s development do not require money. Engaging with children in a warm and nurturing way, having conversations with them, and reading with them are all important.

If the pattern in the PNAS study holds, individual experiences and outcomes will still vary, Dr. Noble said. Many children in the group that received the smaller gift had fast-paced brain activity, whereas some babies in the group that received the larger gift showed slower brain activity. Knowing family income would not allow you to accurately predict anything about an individual child’s brain, Dr. Noble said.

“I certainly wouldn’t want the message to be that money is the only thing that matters,” Dr. Noble said. “Money is something that can be easily manipulated by policy, which is why I think this is important.”

For the 18-year-old new mom Ms. Matos, accepting assistance “makes me feel less of myself. But honestly, I feel like mothers shouldn’t be afraid to ask for help or reach out for help or apply to programs like these.”

The sources reported a variety of funders, including federal agencies and foundations and donors.

A version of this article first appeared on Medscape.com.

Pediatricians are increasingly expert in the assessment and treatment of attention-deficit/hyperactivity disorder. But what do you do when adolescents present to your office saying they think they have ADHD? While ADHD is a common and treatable disorder of youth, it is important to take special care when assessing an adolescent. Difficulties with attention and concentration are common symptoms for many different challenges of adolescence, and for ADHD to be the underlying cause, those symptoms must have started prior to adolescence (according to DSM-5, prior to the age of 12). When your adolescent patients or their parents come to your office complaining of inattention, it is important to consider the full range of possible explanations.

Sleep

We have written in this column previously about the challenges that adolescents face in getting adequate sleep consistently. Teenagers, on average, need more than 9 hours of sleep nightly and American teenagers get fewer than 6. This mismatch is because of physiologic shifts that move their natural sleep onset time significantly later, while school still starts early. It’s often compounded by other demands on their time, including homework, extracurricular activities, and the gravitational pull of social connections. Independent teenagers make their own decisions about how to manage their time and may feel sleep is optional, or manage their fatigue with naps and caffeine, both of which will further compromise the quality and efficiency of sleep.

Chronic sleep deprivation will present with difficulties with focus, attention, memory, and cognitive performance. Treatment of this problem with stimulants is likely to make the underlying poor sleep habits even worse. When your patient presents complaining of difficulty concentrating and worsening school performance, be sure to start with a thorough sleep history, and always provide guidance about the body’s need for sleep and healthy sleep habits.
 

Anxiety

Anxiety disorders are the most common psychiatric illnesses of youth, with estimates of as many as 30% of children and adolescents experiencing one. The true prevalence of ADHD is estimated to be about 4% of the population. Whether social phobia, generalized anxiety disorder, or even posttraumatic stress disorder, anxiety disorders interfere with attention as ruminative worry tends to distract those experiencing it. It can also affect attention and focus indirectly by interfering with restful sleep. Anxiety disorders can be difficult to identify, as the sufferers typically internalize their symptoms. But inquire about specific worries (such as speaking in front of others, meeting new people, or an illness or accident striking themselves or a loved one) and how much time they take up. Explore if worries fill their thoughts during quiet or downtime, and explore more about their worries. You may use a screening instrument such as the Pediatric Symptom Checklist or the SCARED, both of which will indicate a likely problem with anxiety. While it is possible to have comorbid ADHD with an anxiety disorder, the anxiety disorder will likely worsen with stimulants and should be treated first. These are usually curable illnesses and you may find that remission of anxiety symptoms resolves the attentional problems.

Depression

Mood disorders are less common than anxiety disorders in youth, but far more prevalent than ADHD. And depression is usually marked by serious difficulty concentrating across settings (including for things that were previously very interesting). A sullen teenager who is deeply self-critical about school performance would benefit from exploration of associated changes in mood, interests, energy, appetite, sleep, and for feelings of worthlessness, guilt, and suicidal thoughts. The PHQ9A is a simple, free screening instrument that is reasonable to use with every sick visit (and well-check) with your adolescent patients, given the risks of undetected and untreated depression. If your patient presents complaining of poor school performance, always screen for depression. As with anxiety disorders, comorbid ADHD is possible, but it is always recommended to treat the mood disorder first and then to assess for residual ADHD symptoms once the mood disorder is in remission.

Substance abuse

Adolescence is a time of exploration, and drug and alcohol use is common. While attentional impairment will happen with intoxication, occasional or rare use should not lead to consistent impairment in school. But when parents are more worried than their children about a significant change in school performance, it is important to screen for substance abuse. A child with a secret substance use disorder will often present with behavioral changes and deteriorating school performance and might deny any drug or alcohol use to parents. Indeed, stimulants have some street value and some patients may be seeking a stimulant prescription to sell or trade for other drugs. Regular marijuana use may present with only deteriorating school performance and no irritability or other noticeable behavioral changes. Marijuana is seen as safe and even healthy by many teenagers (and even many parents), and some youth may be using it recreationally or to manage difficulties with sleep, anxiety, or mood symptoms.

But there is compelling evidence that marijuana use causes cognitive impairment, including difficulty with sustaining attention, short-term memory, and processing speed, for as long as 24 hours after use. If a teenager is using marijuana daily after school, it is certainly going to interfere, in a dose-dependent manner, with attention and cognitive function. Sustained heavy use can lead to permanent cognitive deficits. It can also trigger or worsen anxiety or mood symptoms (contrary to much popular opinion).

Gathering a thorough substance use history is essential when assessing a teenager for difficulties with focus or attention, especially when these are accompanied by change in behavior and school performance. Remember, it is critical to interview these children without their parents present to invite them to be forthcoming with you.
 

History

While true ADHD should have been present throughout childhood, it is possible that the symptoms have become noticeable only in adolescence. For patients with very high intelligence and lower levels of impulsivity and hyperactivity, they might easily have “flown under the radar” during their elementary and even middle school years. Their difficulties with attention and focus might become apparent only when the volume and difficulty of schoolwork both are great enough that their intelligence is not enough to get good grades. That is, their problems with executive function, prioritizing, shifting sets, and completing tasks in a timely way make it impossible to keep up good grades when the work gets harder.

Your history should reveal a long history of dreaminess or distractibility, a tendency to lose and forget things, and the other symptoms of inattention. Did they often seem to not be listening when they were younger? Forget to hand in homework? Leave chores unfinished? Leave messes behind everywhere they went? These will not be definitive, but they do reassure that symptoms may have been present for a long time, even if school performance was considered fine until the workload got too large. If such problems were not present before puberty, consider whether a subtle learning disability could be impairing them as they face more challenging academic subjects.

If you have ruled out anxiety, mood, and substance use concerns, and helped them to address a sleep deficit, then you can proceed. It is worthwhile to get Vanderbilt Assessments as you would for a younger child. If they meet criteria, discuss the risks and benefits of medication, executive skills coaching, and environmental adjustments (extra time for tests, a less stimulating environment) that can help them explore academic challenges without the discouragement that ADHD can bring.

Dr. Swick is physician in chief at Ohana, Center for Child and Adolescent Behavioral Health, Community Hospital of the Monterey (Calif.) Peninsula. Dr. Jellinek is professor emeritus of psychiatry and pediatrics, Harvard Medical School, Boston. Email them at pdnews@mdedge.com.

Pediatricians are increasingly expert in the assessment and treatment of attention-deficit/hyperactivity disorder. But what do you do when adolescents present to your office saying they think they have ADHD? While ADHD is a common and treatable disorder of youth, it is important to take special care when assessing an adolescent. Difficulties with attention and concentration are common symptoms for many different challenges of adolescence, and for ADHD to be the underlying cause, those symptoms must have started prior to adolescence (according to DSM-5, prior to the age of 12). When your adolescent patients or their parents come to your office complaining of inattention, it is important to consider the full range of possible explanations.

Sleep

We have written in this column previously about the challenges that adolescents face in getting adequate sleep consistently. Teenagers, on average, need more than 9 hours of sleep nightly and American teenagers get fewer than 6. This mismatch is because of physiologic shifts that move their natural sleep onset time significantly later, while school still starts early. It’s often compounded by other demands on their time, including homework, extracurricular activities, and the gravitational pull of social connections. Independent teenagers make their own decisions about how to manage their time and may feel sleep is optional, or manage their fatigue with naps and caffeine, both of which will further compromise the quality and efficiency of sleep.

Chronic sleep deprivation will present with difficulties with focus, attention, memory, and cognitive performance. Treatment of this problem with stimulants is likely to make the underlying poor sleep habits even worse. When your patient presents complaining of difficulty concentrating and worsening school performance, be sure to start with a thorough sleep history, and always provide guidance about the body’s need for sleep and healthy sleep habits.
 

Anxiety

Anxiety disorders are the most common psychiatric illnesses of youth, with estimates of as many as 30% of children and adolescents experiencing one. The true prevalence of ADHD is estimated to be about 4% of the population. Whether social phobia, generalized anxiety disorder, or even posttraumatic stress disorder, anxiety disorders interfere with attention as ruminative worry tends to distract those experiencing it. It can also affect attention and focus indirectly by interfering with restful sleep. Anxiety disorders can be difficult to identify, as the sufferers typically internalize their symptoms. But inquire about specific worries (such as speaking in front of others, meeting new people, or an illness or accident striking themselves or a loved one) and how much time they take up. Explore if worries fill their thoughts during quiet or downtime, and explore more about their worries. You may use a screening instrument such as the Pediatric Symptom Checklist or the SCARED, both of which will indicate a likely problem with anxiety. While it is possible to have comorbid ADHD with an anxiety disorder, the anxiety disorder will likely worsen with stimulants and should be treated first. These are usually curable illnesses and you may find that remission of anxiety symptoms resolves the attentional problems.

Depression

Mood disorders are less common than anxiety disorders in youth, but far more prevalent than ADHD. And depression is usually marked by serious difficulty concentrating across settings (including for things that were previously very interesting). A sullen teenager who is deeply self-critical about school performance would benefit from exploration of associated changes in mood, interests, energy, appetite, sleep, and for feelings of worthlessness, guilt, and suicidal thoughts. The PHQ9A is a simple, free screening instrument that is reasonable to use with every sick visit (and well-check) with your adolescent patients, given the risks of undetected and untreated depression. If your patient presents complaining of poor school performance, always screen for depression. As with anxiety disorders, comorbid ADHD is possible, but it is always recommended to treat the mood disorder first and then to assess for residual ADHD symptoms once the mood disorder is in remission.

Substance abuse

Adolescence is a time of exploration, and drug and alcohol use is common. While attentional impairment will happen with intoxication, occasional or rare use should not lead to consistent impairment in school. But when parents are more worried than their children about a significant change in school performance, it is important to screen for substance abuse. A child with a secret substance use disorder will often present with behavioral changes and deteriorating school performance and might deny any drug or alcohol use to parents. Indeed, stimulants have some street value and some patients may be seeking a stimulant prescription to sell or trade for other drugs. Regular marijuana use may present with only deteriorating school performance and no irritability or other noticeable behavioral changes. Marijuana is seen as safe and even healthy by many teenagers (and even many parents), and some youth may be using it recreationally or to manage difficulties with sleep, anxiety, or mood symptoms.

But there is compelling evidence that marijuana use causes cognitive impairment, including difficulty with sustaining attention, short-term memory, and processing speed, for as long as 24 hours after use. If a teenager is using marijuana daily after school, it is certainly going to interfere, in a dose-dependent manner, with attention and cognitive function. Sustained heavy use can lead to permanent cognitive deficits. It can also trigger or worsen anxiety or mood symptoms (contrary to much popular opinion).

Gathering a thorough substance use history is essential when assessing a teenager for difficulties with focus or attention, especially when these are accompanied by change in behavior and school performance. Remember, it is critical to interview these children without their parents present to invite them to be forthcoming with you.
 

History

While true ADHD should have been present throughout childhood, it is possible that the symptoms have become noticeable only in adolescence. For patients with very high intelligence and lower levels of impulsivity and hyperactivity, they might easily have “flown under the radar” during their elementary and even middle school years. Their difficulties with attention and focus might become apparent only when the volume and difficulty of schoolwork both are great enough that their intelligence is not enough to get good grades. That is, their problems with executive function, prioritizing, shifting sets, and completing tasks in a timely way make it impossible to keep up good grades when the work gets harder.

Your history should reveal a long history of dreaminess or distractibility, a tendency to lose and forget things, and the other symptoms of inattention. Did they often seem to not be listening when they were younger? Forget to hand in homework? Leave chores unfinished? Leave messes behind everywhere they went? These will not be definitive, but they do reassure that symptoms may have been present for a long time, even if school performance was considered fine until the workload got too large. If such problems were not present before puberty, consider whether a subtle learning disability could be impairing them as they face more challenging academic subjects.

If you have ruled out anxiety, mood, and substance use concerns, and helped them to address a sleep deficit, then you can proceed. It is worthwhile to get Vanderbilt Assessments as you would for a younger child. If they meet criteria, discuss the risks and benefits of medication, executive skills coaching, and environmental adjustments (extra time for tests, a less stimulating environment) that can help them explore academic challenges without the discouragement that ADHD can bring.

Dr. Swick is physician in chief at Ohana, Center for Child and Adolescent Behavioral Health, Community Hospital of the Monterey (Calif.) Peninsula. Dr. Jellinek is professor emeritus of psychiatry and pediatrics, Harvard Medical School, Boston. Email them at pdnews@mdedge.com.

Pediatricians are increasingly expert in the assessment and treatment of attention-deficit/hyperactivity disorder. But what do you do when adolescents present to your office saying they think they have ADHD? While ADHD is a common and treatable disorder of youth, it is important to take special care when assessing an adolescent. Difficulties with attention and concentration are common symptoms for many different challenges of adolescence, and for ADHD to be the underlying cause, those symptoms must have started prior to adolescence (according to DSM-5, prior to the age of 12). When your adolescent patients or their parents come to your office complaining of inattention, it is important to consider the full range of possible explanations.

Sleep

We have written in this column previously about the challenges that adolescents face in getting adequate sleep consistently. Teenagers, on average, need more than 9 hours of sleep nightly and American teenagers get fewer than 6. This mismatch is because of physiologic shifts that move their natural sleep onset time significantly later, while school still starts early. It’s often compounded by other demands on their time, including homework, extracurricular activities, and the gravitational pull of social connections. Independent teenagers make their own decisions about how to manage their time and may feel sleep is optional, or manage their fatigue with naps and caffeine, both of which will further compromise the quality and efficiency of sleep.

Chronic sleep deprivation will present with difficulties with focus, attention, memory, and cognitive performance. Treatment of this problem with stimulants is likely to make the underlying poor sleep habits even worse. When your patient presents complaining of difficulty concentrating and worsening school performance, be sure to start with a thorough sleep history, and always provide guidance about the body’s need for sleep and healthy sleep habits.
 

Anxiety

Anxiety disorders are the most common psychiatric illnesses of youth, with estimates of as many as 30% of children and adolescents experiencing one. The true prevalence of ADHD is estimated to be about 4% of the population. Whether social phobia, generalized anxiety disorder, or even posttraumatic stress disorder, anxiety disorders interfere with attention as ruminative worry tends to distract those experiencing it. It can also affect attention and focus indirectly by interfering with restful sleep. Anxiety disorders can be difficult to identify, as the sufferers typically internalize their symptoms. But inquire about specific worries (such as speaking in front of others, meeting new people, or an illness or accident striking themselves or a loved one) and how much time they take up. Explore if worries fill their thoughts during quiet or downtime, and explore more about their worries. You may use a screening instrument such as the Pediatric Symptom Checklist or the SCARED, both of which will indicate a likely problem with anxiety. While it is possible to have comorbid ADHD with an anxiety disorder, the anxiety disorder will likely worsen with stimulants and should be treated first. These are usually curable illnesses and you may find that remission of anxiety symptoms resolves the attentional problems.

Depression

Mood disorders are less common than anxiety disorders in youth, but far more prevalent than ADHD. And depression is usually marked by serious difficulty concentrating across settings (including for things that were previously very interesting). A sullen teenager who is deeply self-critical about school performance would benefit from exploration of associated changes in mood, interests, energy, appetite, sleep, and for feelings of worthlessness, guilt, and suicidal thoughts. The PHQ9A is a simple, free screening instrument that is reasonable to use with every sick visit (and well-check) with your adolescent patients, given the risks of undetected and untreated depression. If your patient presents complaining of poor school performance, always screen for depression. As with anxiety disorders, comorbid ADHD is possible, but it is always recommended to treat the mood disorder first and then to assess for residual ADHD symptoms once the mood disorder is in remission.

Substance abuse

Adolescence is a time of exploration, and drug and alcohol use is common. While attentional impairment will happen with intoxication, occasional or rare use should not lead to consistent impairment in school. But when parents are more worried than their children about a significant change in school performance, it is important to screen for substance abuse. A child with a secret substance use disorder will often present with behavioral changes and deteriorating school performance and might deny any drug or alcohol use to parents. Indeed, stimulants have some street value and some patients may be seeking a stimulant prescription to sell or trade for other drugs. Regular marijuana use may present with only deteriorating school performance and no irritability or other noticeable behavioral changes. Marijuana is seen as safe and even healthy by many teenagers (and even many parents), and some youth may be using it recreationally or to manage difficulties with sleep, anxiety, or mood symptoms.

But there is compelling evidence that marijuana use causes cognitive impairment, including difficulty with sustaining attention, short-term memory, and processing speed, for as long as 24 hours after use. If a teenager is using marijuana daily after school, it is certainly going to interfere, in a dose-dependent manner, with attention and cognitive function. Sustained heavy use can lead to permanent cognitive deficits. It can also trigger or worsen anxiety or mood symptoms (contrary to much popular opinion).

Gathering a thorough substance use history is essential when assessing a teenager for difficulties with focus or attention, especially when these are accompanied by change in behavior and school performance. Remember, it is critical to interview these children without their parents present to invite them to be forthcoming with you.
 

History

While true ADHD should have been present throughout childhood, it is possible that the symptoms have become noticeable only in adolescence. For patients with very high intelligence and lower levels of impulsivity and hyperactivity, they might easily have “flown under the radar” during their elementary and even middle school years. Their difficulties with attention and focus might become apparent only when the volume and difficulty of schoolwork both are great enough that their intelligence is not enough to get good grades. That is, their problems with executive function, prioritizing, shifting sets, and completing tasks in a timely way make it impossible to keep up good grades when the work gets harder.

Your history should reveal a long history of dreaminess or distractibility, a tendency to lose and forget things, and the other symptoms of inattention. Did they often seem to not be listening when they were younger? Forget to hand in homework? Leave chores unfinished? Leave messes behind everywhere they went? These will not be definitive, but they do reassure that symptoms may have been present for a long time, even if school performance was considered fine until the workload got too large. If such problems were not present before puberty, consider whether a subtle learning disability could be impairing them as they face more challenging academic subjects.

If you have ruled out anxiety, mood, and substance use concerns, and helped them to address a sleep deficit, then you can proceed. It is worthwhile to get Vanderbilt Assessments as you would for a younger child. If they meet criteria, discuss the risks and benefits of medication, executive skills coaching, and environmental adjustments (extra time for tests, a less stimulating environment) that can help them explore academic challenges without the discouragement that ADHD can bring.

Dr. Swick is physician in chief at Ohana, Center for Child and Adolescent Behavioral Health, Community Hospital of the Monterey (Calif.) Peninsula. Dr. Jellinek is professor emeritus of psychiatry and pediatrics, Harvard Medical School, Boston. Email them at pdnews@mdedge.com.

New studies show that chronic exposure to air pollution is associated with increased risk of autoimmune disease in adults and depression in adolescents.

Other analyses of data have found environmental air pollution from sources such as car exhaust and factory output can trigger an inflammatory response in the body. What’s new about a study published in RMD Open is that it explored an association between long-term exposure to pollution and risk of autoimmune diseases, wrote Giovanni Adami, MD, of the University of Verona (Italy) and colleagues.

“Environmental air pollution, according to the World Health Organization, is a major risk to health and 99% of the population worldwide is living in places where recommendations for air quality are not met,” said Dr. Adami in an interview. The limited data on the precise role of air pollution on rheumatic diseases in particular prompted the study, he said.

To explore the potential link between air pollution exposure and autoimmune disease, the researchers reviewed medical information from 81,363 adults via a national medical database in Italy; the data were submitted between June 2016 and November 2020.

The average age of the study population was 65 years, and 92% were women; 22% had at least one coexisting health condition. Each study participant was linked to local environmental monitoring via their residential postcode. 

The researchers obtained details about concentrations of particulate matter in the environment from the Italian Institute of Environmental Protection that included 617 monitoring stations in 110 Italian provinces. They focused on concentrations of 10 and 2.5 (PM10 and PM2.5).

Exposure thresholds of 30 mcg/m³ for PM10 and 20 mcg/m³ for PM2.5 are generally considered harmful to health, they noted. On average, the long-term exposure was 16 mcg/m³ for PM2.5 and 25 mcg/m³ for PM10 between 2013 and 2019.

Overall, 9,723 individuals (12%) were diagnosed with an autoimmune disease between 2016 and 2020.

Exposure to PM10 was associated with a 7% higher risk of diagnosis with any autoimmune disease for every 10 mcg/m³ increase in concentration, but no association appeared between PM2.5 exposure and increased risk of autoimmune diseases.

However, in an adjusted model, chronic exposure to PM10 above 30 mcg/m³ and to PM2.5 above 20 mcg/m³ were associated with a 12% and 13% higher risk, respectively, of any autoimmune disease. 

Chronic exposure to high levels of PM10 was specifically associated with a higher risk of rheumatoid arthritis, but no other autoimmune diseases. Chronic exposure to high levels of PM2.5 was associated with a higher risk of rheumatoid arthritis, connective tissue diseases, and inflammatory bowel diseases.

In their discussion, the researchers noted that the smaller diameter of PM2.5 molecules fluctuate less in response to rain and other weather, compared with PM10 molecules, which might make them a more accurate predictor of exposure to chronic air pollution.

The study findings were limited by several factors including the observational design, which prohibits the establishment of cause, and a lack of data on the start of symptoms and dates of diagnoses for autoimmune diseases, the researchers noted. Other limitations include the high percentage of older women in the study, which may limit generalizability, and the inability to account for additional personal exposure to pollutants outside of the environmental exposure, they said.

However, the results were strengthened by the large sample size and wide geographic distribution with variable pollution exposure, they said.

“Unfortunately, we were not surprised at all,” by the findings, Dr. Adami said in an interview.

“The biological rationale underpinning our findings is strong. Nevertheless, the magnitude of the effect was overwhelming. In addition, we saw an effect even at threshold of exposure that is widely considered as safe,” Dr. Adami noted.

Clinicians have been taught to consider cigarette smoking or other lifestyle behaviors as major risk factors for the development of several autoimmune diseases, said Dr. Adami. “In the future, we probably should include air pollution exposure as a risk factor as well. Interestingly, there is also accumulating evidence linking acute exposure to environmental air pollution with flares of chronic arthritis,” he said.

“Our study could have direct societal and political consequences,” and might help direct policy makers’ decisions on addressing strategies aimed to reduce fossil emissions, he said. As for additional research, “we certainly need multination studies to confirm our results on a larger scale,” Dr. Adami emphasized. “In addition, it is time to take action and start designing interventions aimed to reduce acute and chronic exposure to air pollution in patients suffering from RMDs.”

Consider the big picture of air quality

The Italian study is especially timely “given our evolving and emerging understanding of environmental risk factors for acute and chronic diseases, which we must first understand before we can address,” said Eileen Barrett, MD, of the University of New Mexico, Albuquerque, in an interview.

“I am largely surprised about the findings, as most physicians aren’t studying ambient air quality and risk for autoimmune disease,” said Dr. Barrett. “More often we think of air quality when we think of risk for respiratory diseases than autoimmune diseases, per se,” she said.

“There are several take-home messages from this study,” said Dr. Barrett. “The first is that we need more research to understand the consequences of air pollutants on health. Second, this study reminds us to think broadly about how air quality and our environment can affect health. And third, all clinicians should be committed to promoting science that can improve public health and reduce death and disability,” she emphasized.

The findings do not specifically reflect associations between pollution and other conditions such as chronic obstructive pulmonary disease and asthma although previous studies have shown an association between asthma and COPD exacerbations and air pollution, Dr. Barrett said.

“Further research will be needed to confirm the associations reported in this study,” Dr. Barrett said.

More research in other countries, including research related to other autoimmune diseases, and with other datasets on population and community level risks from poor air quality, would be helpful, and that information could be used to advise smart public policy, Dr. Barrett added.

Air pollution’s mental health impact

Air pollution’s effects extend beyond physical to the psychological, a new study of depression in teenagers showed. This study was published in Developmental Psychology.

Previous research on the environmental factors associated with depressive symptoms in teens has focused mainly on individual and family level contributors; the impact of the physical environment has not been well studied, the investigators, Erika M. Manczak, PhD, of the University of Denver and colleagues, wrote.

In their paper, the authors found a significant impact of neighborhood ozone exposure on the trajectory of depressive symptoms in teens over a 4-year period.

“Given that inhaling pollution activates biological pathways implicated in the development of depression, including immune, cardiovascular, and neurodevelopmental processes, exposure to ambient air pollution may influence the development and/or trajectory of depressive symptoms in youth,” they said.

The researchers recruited 213 adolescents in the San Francisco Bay area through local advertisements. The participants were aged 9-13 years at baseline, with an average age of 11 years. A total of 121 were female, 47% were white, 8.5% were African American, 12.3% were Asian, 10.4% were nonwhite Latin, and 21.7% were biracial or another ethnicity. The participants self-reported depressive symptoms and other psychopathology symptoms up to three times during the study period. Ozone exposure was calculated based on home addresses.

After controlling for other personal, family, and neighborhood variables, the researchers found that higher levels of ozone exposure were significantly associated with increased depressive symptoms over time, and the slope of trajectory of depressive symptoms became steeper as the ozone levels increased (P less than .001). Ozone did not significantly predict the trajectory of any other psychopathology symptoms.

“The results of this study provide preliminary support for the possibility that ozone is an overlooked contributor to the development or course of youth depressive symptoms,” the researchers wrote in their discussion.

“Interestingly, the association between ozone and symptom trajectories as measured by Anxious/Depressed subscale of the [Youth Self-Report] was not as strong as it was for the [Children’s Depression Inventory-Short Version] or Withdrawn/Depressed scales, suggesting that associations are more robust for behavioral withdrawal symptoms of depression than for other types of symptoms,” they noted.

The study findings were limited by the use of self-reports and by the inability of the study design to show causality, the researchers said. Other limitations include the use of average assessments of ozone that are less precise, lack of assessment of biological pathways for risk, lack of formal psychiatric diagnoses, and the small geographic region included in the study, they said.

However, the results provide preliminary evidence that ozone exposure is a potential contributing factor to depressive symptoms in youth, and serve as a jumping-off point for future research, they noted. Future studies should address changes in systemic inflammation, neurodevelopment, or stress reactivity, as well as concurrent psychosocial or biological factors, and temporal associations between air pollution and mental health symptoms, they concluded.

Environmental factors drive inflammatory responses

Peter L. Loper Jr., MD, considers the findings of the Developmental Psychology study to be unsurprising but important – because air pollution is simply getting worse.

“As the study authors cite, there is sufficient data correlating ozone to negative physical health outcomes in youth, but a paucity of data exploring the impact of poor air quality on mental health outcomes in this demographic,” noted Dr. Loper, of the University of South Carolina, Columbia, in an interview.

“As discussed by the study researchers, any environmental exposure that increases immune-mediated inflammation can result in negative health outcomes. In fact, there is already data to suggest that similar cytokines, or immune cell signalers, that get released by our immune system due to environmental exposures and that contribute to asthma, may also be implicated in depression and other mental health problems,” he noted.

“Just like downstream symptom indicators of physical illnesses such as asthma are secondary to immune-mediated pulmonary inflammation, downstream symptom indicators of mental illness, such as depression, are secondary to immune-mediated neuroinflammation,” Dr. Loper emphasized. “The most well-characterized upstream phenomenon perpetuating the downstream symptom indicators of depression involve neuroinflammatory states due to psychosocial and relational factors such as chronic stress, poor relationships, or substance use. However, any environmental factor that triggers an immune response and inflammation can promote neuroinflammation that manifests as symptoms of mental illness.”

The message for teens with depression and their families is that “we are a product of our environment,” Dr. Loper said. “When our environments are proinflammatory, or cause our immune system to become overactive, then we will develop illness; however, the most potent mediator of inflammation in the brain, and the downstream symptoms of depression, is our relationships with those we love most,” he said.

Dr. Loper suggested research aimed at identifying other sources of immune-mediated inflammation caused by physical environments and better understanding how environmental phenomenon like ozone may compound previously established risk factors for mental illness could be useful.

The RMD Open study received no outside funding, and its authors had no financial conflicts.

The Developmental Psychology study was supported by the National Institute of Mental Health and the Stanford University Precision Health and Integrated Diagnostics Center. The researchers for that report, and Dr. Loper and Dr. Barrett had no conflicts to disclose.

New studies show that chronic exposure to air pollution is associated with increased risk of autoimmune disease in adults and depression in adolescents.

Other analyses of data have found environmental air pollution from sources such as car exhaust and factory output can trigger an inflammatory response in the body. What’s new about a study published in RMD Open is that it explored an association between long-term exposure to pollution and risk of autoimmune diseases, wrote Giovanni Adami, MD, of the University of Verona (Italy) and colleagues.

“Environmental air pollution, according to the World Health Organization, is a major risk to health and 99% of the population worldwide is living in places where recommendations for air quality are not met,” said Dr. Adami in an interview. The limited data on the precise role of air pollution on rheumatic diseases in particular prompted the study, he said.

To explore the potential link between air pollution exposure and autoimmune disease, the researchers reviewed medical information from 81,363 adults via a national medical database in Italy; the data were submitted between June 2016 and November 2020.

The average age of the study population was 65 years, and 92% were women; 22% had at least one coexisting health condition. Each study participant was linked to local environmental monitoring via their residential postcode. 

The researchers obtained details about concentrations of particulate matter in the environment from the Italian Institute of Environmental Protection that included 617 monitoring stations in 110 Italian provinces. They focused on concentrations of 10 and 2.5 (PM10 and PM2.5).

Exposure thresholds of 30 mcg/m³ for PM10 and 20 mcg/m³ for PM2.5 are generally considered harmful to health, they noted. On average, the long-term exposure was 16 mcg/m³ for PM2.5 and 25 mcg/m³ for PM10 between 2013 and 2019.

Overall, 9,723 individuals (12%) were diagnosed with an autoimmune disease between 2016 and 2020.

Exposure to PM10 was associated with a 7% higher risk of diagnosis with any autoimmune disease for every 10 mcg/m³ increase in concentration, but no association appeared between PM2.5 exposure and increased risk of autoimmune diseases.

However, in an adjusted model, chronic exposure to PM10 above 30 mcg/m³ and to PM2.5 above 20 mcg/m³ were associated with a 12% and 13% higher risk, respectively, of any autoimmune disease. 

Chronic exposure to high levels of PM10 was specifically associated with a higher risk of rheumatoid arthritis, but no other autoimmune diseases. Chronic exposure to high levels of PM2.5 was associated with a higher risk of rheumatoid arthritis, connective tissue diseases, and inflammatory bowel diseases.

In their discussion, the researchers noted that the smaller diameter of PM2.5 molecules fluctuate less in response to rain and other weather, compared with PM10 molecules, which might make them a more accurate predictor of exposure to chronic air pollution.

The study findings were limited by several factors including the observational design, which prohibits the establishment of cause, and a lack of data on the start of symptoms and dates of diagnoses for autoimmune diseases, the researchers noted. Other limitations include the high percentage of older women in the study, which may limit generalizability, and the inability to account for additional personal exposure to pollutants outside of the environmental exposure, they said.

However, the results were strengthened by the large sample size and wide geographic distribution with variable pollution exposure, they said.

“Unfortunately, we were not surprised at all,” by the findings, Dr. Adami said in an interview.

“The biological rationale underpinning our findings is strong. Nevertheless, the magnitude of the effect was overwhelming. In addition, we saw an effect even at threshold of exposure that is widely considered as safe,” Dr. Adami noted.

Clinicians have been taught to consider cigarette smoking or other lifestyle behaviors as major risk factors for the development of several autoimmune diseases, said Dr. Adami. “In the future, we probably should include air pollution exposure as a risk factor as well. Interestingly, there is also accumulating evidence linking acute exposure to environmental air pollution with flares of chronic arthritis,” he said.

“Our study could have direct societal and political consequences,” and might help direct policy makers’ decisions on addressing strategies aimed to reduce fossil emissions, he said. As for additional research, “we certainly need multination studies to confirm our results on a larger scale,” Dr. Adami emphasized. “In addition, it is time to take action and start designing interventions aimed to reduce acute and chronic exposure to air pollution in patients suffering from RMDs.”

Consider the big picture of air quality

The Italian study is especially timely “given our evolving and emerging understanding of environmental risk factors for acute and chronic diseases, which we must first understand before we can address,” said Eileen Barrett, MD, of the University of New Mexico, Albuquerque, in an interview.

“I am largely surprised about the findings, as most physicians aren’t studying ambient air quality and risk for autoimmune disease,” said Dr. Barrett. “More often we think of air quality when we think of risk for respiratory diseases than autoimmune diseases, per se,” she said.

“There are several take-home messages from this study,” said Dr. Barrett. “The first is that we need more research to understand the consequences of air pollutants on health. Second, this study reminds us to think broadly about how air quality and our environment can affect health. And third, all clinicians should be committed to promoting science that can improve public health and reduce death and disability,” she emphasized.

The findings do not specifically reflect associations between pollution and other conditions such as chronic obstructive pulmonary disease and asthma although previous studies have shown an association between asthma and COPD exacerbations and air pollution, Dr. Barrett said.

“Further research will be needed to confirm the associations reported in this study,” Dr. Barrett said.

More research in other countries, including research related to other autoimmune diseases, and with other datasets on population and community level risks from poor air quality, would be helpful, and that information could be used to advise smart public policy, Dr. Barrett added.

Air pollution’s mental health impact

Air pollution’s effects extend beyond physical to the psychological, a new study of depression in teenagers showed. This study was published in Developmental Psychology.

Previous research on the environmental factors associated with depressive symptoms in teens has focused mainly on individual and family level contributors; the impact of the physical environment has not been well studied, the investigators, Erika M. Manczak, PhD, of the University of Denver and colleagues, wrote.

In their paper, the authors found a significant impact of neighborhood ozone exposure on the trajectory of depressive symptoms in teens over a 4-year period.

“Given that inhaling pollution activates biological pathways implicated in the development of depression, including immune, cardiovascular, and neurodevelopmental processes, exposure to ambient air pollution may influence the development and/or trajectory of depressive symptoms in youth,” they said.

The researchers recruited 213 adolescents in the San Francisco Bay area through local advertisements. The participants were aged 9-13 years at baseline, with an average age of 11 years. A total of 121 were female, 47% were white, 8.5% were African American, 12.3% were Asian, 10.4% were nonwhite Latin, and 21.7% were biracial or another ethnicity. The participants self-reported depressive symptoms and other psychopathology symptoms up to three times during the study period. Ozone exposure was calculated based on home addresses.

After controlling for other personal, family, and neighborhood variables, the researchers found that higher levels of ozone exposure were significantly associated with increased depressive symptoms over time, and the slope of trajectory of depressive symptoms became steeper as the ozone levels increased (P less than .001). Ozone did not significantly predict the trajectory of any other psychopathology symptoms.

“The results of this study provide preliminary support for the possibility that ozone is an overlooked contributor to the development or course of youth depressive symptoms,” the researchers wrote in their discussion.

“Interestingly, the association between ozone and symptom trajectories as measured by Anxious/Depressed subscale of the [Youth Self-Report] was not as strong as it was for the [Children’s Depression Inventory-Short Version] or Withdrawn/Depressed scales, suggesting that associations are more robust for behavioral withdrawal symptoms of depression than for other types of symptoms,” they noted.

The study findings were limited by the use of self-reports and by the inability of the study design to show causality, the researchers said. Other limitations include the use of average assessments of ozone that are less precise, lack of assessment of biological pathways for risk, lack of formal psychiatric diagnoses, and the small geographic region included in the study, they said.

However, the results provide preliminary evidence that ozone exposure is a potential contributing factor to depressive symptoms in youth, and serve as a jumping-off point for future research, they noted. Future studies should address changes in systemic inflammation, neurodevelopment, or stress reactivity, as well as concurrent psychosocial or biological factors, and temporal associations between air pollution and mental health symptoms, they concluded.

Environmental factors drive inflammatory responses

Peter L. Loper Jr., MD, considers the findings of the Developmental Psychology study to be unsurprising but important – because air pollution is simply getting worse.

“As the study authors cite, there is sufficient data correlating ozone to negative physical health outcomes in youth, but a paucity of data exploring the impact of poor air quality on mental health outcomes in this demographic,” noted Dr. Loper, of the University of South Carolina, Columbia, in an interview.

“As discussed by the study researchers, any environmental exposure that increases immune-mediated inflammation can result in negative health outcomes. In fact, there is already data to suggest that similar cytokines, or immune cell signalers, that get released by our immune system due to environmental exposures and that contribute to asthma, may also be implicated in depression and other mental health problems,” he noted.

“Just like downstream symptom indicators of physical illnesses such as asthma are secondary to immune-mediated pulmonary inflammation, downstream symptom indicators of mental illness, such as depression, are secondary to immune-mediated neuroinflammation,” Dr. Loper emphasized. “The most well-characterized upstream phenomenon perpetuating the downstream symptom indicators of depression involve neuroinflammatory states due to psychosocial and relational factors such as chronic stress, poor relationships, or substance use. However, any environmental factor that triggers an immune response and inflammation can promote neuroinflammation that manifests as symptoms of mental illness.”

The message for teens with depression and their families is that “we are a product of our environment,” Dr. Loper said. “When our environments are proinflammatory, or cause our immune system to become overactive, then we will develop illness; however, the most potent mediator of inflammation in the brain, and the downstream symptoms of depression, is our relationships with those we love most,” he said.

Dr. Loper suggested research aimed at identifying other sources of immune-mediated inflammation caused by physical environments and better understanding how environmental phenomenon like ozone may compound previously established risk factors for mental illness could be useful.

The RMD Open study received no outside funding, and its authors had no financial conflicts.

The Developmental Psychology study was supported by the National Institute of Mental Health and the Stanford University Precision Health and Integrated Diagnostics Center. The researchers for that report, and Dr. Loper and Dr. Barrett had no conflicts to disclose.

New studies show that chronic exposure to air pollution is associated with increased risk of autoimmune disease in adults and depression in adolescents.

Other analyses of data have found environmental air pollution from sources such as car exhaust and factory output can trigger an inflammatory response in the body. What’s new about a study published in RMD Open is that it explored an association between long-term exposure to pollution and risk of autoimmune diseases, wrote Giovanni Adami, MD, of the University of Verona (Italy) and colleagues.

“Environmental air pollution, according to the World Health Organization, is a major risk to health and 99% of the population worldwide is living in places where recommendations for air quality are not met,” said Dr. Adami in an interview. The limited data on the precise role of air pollution on rheumatic diseases in particular prompted the study, he said.

To explore the potential link between air pollution exposure and autoimmune disease, the researchers reviewed medical information from 81,363 adults via a national medical database in Italy; the data were submitted between June 2016 and November 2020.

The average age of the study population was 65 years, and 92% were women; 22% had at least one coexisting health condition. Each study participant was linked to local environmental monitoring via their residential postcode. 

The researchers obtained details about concentrations of particulate matter in the environment from the Italian Institute of Environmental Protection that included 617 monitoring stations in 110 Italian provinces. They focused on concentrations of 10 and 2.5 (PM10 and PM2.5).

Exposure thresholds of 30 mcg/m³ for PM10 and 20 mcg/m³ for PM2.5 are generally considered harmful to health, they noted. On average, the long-term exposure was 16 mcg/m³ for PM2.5 and 25 mcg/m³ for PM10 between 2013 and 2019.

Overall, 9,723 individuals (12%) were diagnosed with an autoimmune disease between 2016 and 2020.

Exposure to PM10 was associated with a 7% higher risk of diagnosis with any autoimmune disease for every 10 mcg/m³ increase in concentration, but no association appeared between PM2.5 exposure and increased risk of autoimmune diseases.

However, in an adjusted model, chronic exposure to PM10 above 30 mcg/m³ and to PM2.5 above 20 mcg/m³ were associated with a 12% and 13% higher risk, respectively, of any autoimmune disease. 

Chronic exposure to high levels of PM10 was specifically associated with a higher risk of rheumatoid arthritis, but no other autoimmune diseases. Chronic exposure to high levels of PM2.5 was associated with a higher risk of rheumatoid arthritis, connective tissue diseases, and inflammatory bowel diseases.

In their discussion, the researchers noted that the smaller diameter of PM2.5 molecules fluctuate less in response to rain and other weather, compared with PM10 molecules, which might make them a more accurate predictor of exposure to chronic air pollution.

The study findings were limited by several factors including the observational design, which prohibits the establishment of cause, and a lack of data on the start of symptoms and dates of diagnoses for autoimmune diseases, the researchers noted. Other limitations include the high percentage of older women in the study, which may limit generalizability, and the inability to account for additional personal exposure to pollutants outside of the environmental exposure, they said.

However, the results were strengthened by the large sample size and wide geographic distribution with variable pollution exposure, they said.

“Unfortunately, we were not surprised at all,” by the findings, Dr. Adami said in an interview.

“The biological rationale underpinning our findings is strong. Nevertheless, the magnitude of the effect was overwhelming. In addition, we saw an effect even at threshold of exposure that is widely considered as safe,” Dr. Adami noted.

Clinicians have been taught to consider cigarette smoking or other lifestyle behaviors as major risk factors for the development of several autoimmune diseases, said Dr. Adami. “In the future, we probably should include air pollution exposure as a risk factor as well. Interestingly, there is also accumulating evidence linking acute exposure to environmental air pollution with flares of chronic arthritis,” he said.

“Our study could have direct societal and political consequences,” and might help direct policy makers’ decisions on addressing strategies aimed to reduce fossil emissions, he said. As for additional research, “we certainly need multination studies to confirm our results on a larger scale,” Dr. Adami emphasized. “In addition, it is time to take action and start designing interventions aimed to reduce acute and chronic exposure to air pollution in patients suffering from RMDs.”

Consider the big picture of air quality

The Italian study is especially timely “given our evolving and emerging understanding of environmental risk factors for acute and chronic diseases, which we must first understand before we can address,” said Eileen Barrett, MD, of the University of New Mexico, Albuquerque, in an interview.

“I am largely surprised about the findings, as most physicians aren’t studying ambient air quality and risk for autoimmune disease,” said Dr. Barrett. “More often we think of air quality when we think of risk for respiratory diseases than autoimmune diseases, per se,” she said.

“There are several take-home messages from this study,” said Dr. Barrett. “The first is that we need more research to understand the consequences of air pollutants on health. Second, this study reminds us to think broadly about how air quality and our environment can affect health. And third, all clinicians should be committed to promoting science that can improve public health and reduce death and disability,” she emphasized.

The findings do not specifically reflect associations between pollution and other conditions such as chronic obstructive pulmonary disease and asthma although previous studies have shown an association between asthma and COPD exacerbations and air pollution, Dr. Barrett said.

“Further research will be needed to confirm the associations reported in this study,” Dr. Barrett said.

More research in other countries, including research related to other autoimmune diseases, and with other datasets on population and community level risks from poor air quality, would be helpful, and that information could be used to advise smart public policy, Dr. Barrett added.

Air pollution’s mental health impact

Air pollution’s effects extend beyond physical to the psychological, a new study of depression in teenagers showed. This study was published in Developmental Psychology.

Previous research on the environmental factors associated with depressive symptoms in teens has focused mainly on individual and family level contributors; the impact of the physical environment has not been well studied, the investigators, Erika M. Manczak, PhD, of the University of Denver and colleagues, wrote.

In their paper, the authors found a significant impact of neighborhood ozone exposure on the trajectory of depressive symptoms in teens over a 4-year period.

“Given that inhaling pollution activates biological pathways implicated in the development of depression, including immune, cardiovascular, and neurodevelopmental processes, exposure to ambient air pollution may influence the development and/or trajectory of depressive symptoms in youth,” they said.

The researchers recruited 213 adolescents in the San Francisco Bay area through local advertisements. The participants were aged 9-13 years at baseline, with an average age of 11 years. A total of 121 were female, 47% were white, 8.5% were African American, 12.3% were Asian, 10.4% were nonwhite Latin, and 21.7% were biracial or another ethnicity. The participants self-reported depressive symptoms and other psychopathology symptoms up to three times during the study period. Ozone exposure was calculated based on home addresses.

After controlling for other personal, family, and neighborhood variables, the researchers found that higher levels of ozone exposure were significantly associated with increased depressive symptoms over time, and the slope of trajectory of depressive symptoms became steeper as the ozone levels increased (P less than .001). Ozone did not significantly predict the trajectory of any other psychopathology symptoms.

“The results of this study provide preliminary support for the possibility that ozone is an overlooked contributor to the development or course of youth depressive symptoms,” the researchers wrote in their discussion.

“Interestingly, the association between ozone and symptom trajectories as measured by Anxious/Depressed subscale of the [Youth Self-Report] was not as strong as it was for the [Children’s Depression Inventory-Short Version] or Withdrawn/Depressed scales, suggesting that associations are more robust for behavioral withdrawal symptoms of depression than for other types of symptoms,” they noted.

The study findings were limited by the use of self-reports and by the inability of the study design to show causality, the researchers said. Other limitations include the use of average assessments of ozone that are less precise, lack of assessment of biological pathways for risk, lack of formal psychiatric diagnoses, and the small geographic region included in the study, they said.

However, the results provide preliminary evidence that ozone exposure is a potential contributing factor to depressive symptoms in youth, and serve as a jumping-off point for future research, they noted. Future studies should address changes in systemic inflammation, neurodevelopment, or stress reactivity, as well as concurrent psychosocial or biological factors, and temporal associations between air pollution and mental health symptoms, they concluded.

Environmental factors drive inflammatory responses

Peter L. Loper Jr., MD, considers the findings of the Developmental Psychology study to be unsurprising but important – because air pollution is simply getting worse.

“As the study authors cite, there is sufficient data correlating ozone to negative physical health outcomes in youth, but a paucity of data exploring the impact of poor air quality on mental health outcomes in this demographic,” noted Dr. Loper, of the University of South Carolina, Columbia, in an interview.

“As discussed by the study researchers, any environmental exposure that increases immune-mediated inflammation can result in negative health outcomes. In fact, there is already data to suggest that similar cytokines, or immune cell signalers, that get released by our immune system due to environmental exposures and that contribute to asthma, may also be implicated in depression and other mental health problems,” he noted.

“Just like downstream symptom indicators of physical illnesses such as asthma are secondary to immune-mediated pulmonary inflammation, downstream symptom indicators of mental illness, such as depression, are secondary to immune-mediated neuroinflammation,” Dr. Loper emphasized. “The most well-characterized upstream phenomenon perpetuating the downstream symptom indicators of depression involve neuroinflammatory states due to psychosocial and relational factors such as chronic stress, poor relationships, or substance use. However, any environmental factor that triggers an immune response and inflammation can promote neuroinflammation that manifests as symptoms of mental illness.”

The message for teens with depression and their families is that “we are a product of our environment,” Dr. Loper said. “When our environments are proinflammatory, or cause our immune system to become overactive, then we will develop illness; however, the most potent mediator of inflammation in the brain, and the downstream symptoms of depression, is our relationships with those we love most,” he said.

Dr. Loper suggested research aimed at identifying other sources of immune-mediated inflammation caused by physical environments and better understanding how environmental phenomenon like ozone may compound previously established risk factors for mental illness could be useful.

The RMD Open study received no outside funding, and its authors had no financial conflicts.

The Developmental Psychology study was supported by the National Institute of Mental Health and the Stanford University Precision Health and Integrated Diagnostics Center. The researchers for that report, and Dr. Loper and Dr. Barrett had no conflicts to disclose.

Psychiatry may be emerging from the era of psychopharmacology and entering the era of the brain, but these reductionist, jingoistic labels do little justice to the need to acknowledge and incorporate the context of our lives into our theories and treatments. Yet psychiatrists who embrace context have much to celebrate in evolving neuroscience research.

One aptly named article – ’Families that fire together smile together’ – illustrates the fundamental connection between parent and child.¹ In the functional MRIs (fMRIs) taken of these parent-child dyads (n = 76), the dyads with similar resting state connectomes also have similar day-to-day emotional states, as reflected in their diary entries. Their empathic states were identified in the multivoxel patterns in the fusiform face area of the brain.² Another study of fMRIs and parent-child dyads (n = 93) found that the parental functional connectomes (fbc) predicted their children’s externalizing and internalizing problems. The maternal fbcs were correlated with the daughter-mother relationship, and to the daughter’s internalizing problems, suggesting a potential future focus on gendered relationships.³

The implications for psychotherapy are clear: These studies show that empathic connection between parent and child results in a better outcome for the child. Patient and psychotherapist can choose from a range of psychotherapeutic interventions that promote empathy, from providing behavioral tasks that support connection between parent and child to more in-depth family interventions. Family interventions that promote empathy include increasing the family’s understanding of the importance of empathic connection and providing a safe space to help establish empathic connection.

Studying prosocial behavior, Lukas Lengersdorff and colleagues found that fMRIs of male participants (n = 96) reflected stronger activity when they were acting on behalf of the other, rather than when acting for themselves.⁴ During this prosocial learning fMRI study, there was stronger engagement of the ventromedial prefrontal cortex (PFC) and higher connectivity between the ventromedial PFC and the right temporoparietal junction (rTPJ). Protecting others from harm appears to be associated with neural mechanisms that support self-relevant learning, but with the added recruitment of structures associated with the social brain. This study shows what we already know – that our brains are wired for social context. This research supports psychotherapeutic interventions aimed at creating interpersonal connection, not just at an intimate level, but also at the prosocial level, such as caring and helping others.

When social interactions are coded, the default mode network (DMN) shows increased activity. Participants (n = 11) in another study had heightened medial PFC–rTPJ connectivity, not only during rest that followed the experimental social encoding, but also during rest that followed a subsequent, nonsocial task.⁵ Engaging portions of the DMN during live social interactions when actively decoding the social environment, and later engaging these regions when relaxing after the social interaction, appears to facilitate social functioning. Our brains are wired to respond to context. This research underscores the positive impact of interventions such as group therapy and support groups, two underutilized modalities.

Neuroscience evaluation of our relationships provides depth to studies that fall under the medical paradigm of the gene/environment interaction. One of the most elegant in psychiatry is the Finnish study of a sample of offspring of mothers with schizophrenia who gave their children up for adoption.⁶ This sample of index offspring (n = 155) was compared blindly with matched controls (n = 186) of adopted/away offspring of parents without schizophrenia. The genetic effect manifested only as a psychiatric disorder in the presence of a disturbed family environment. We can now extrapolate certain possible mechanisms from the studies mentioned above: That the deficits lie in the activity or lack of activity in the DMN and associated areas, and in the generation of connectomes responsible for empathic connections.

Neuroscience expands our knowledge of our relational and social worlds, but can psychiatry make the case for inclusion of context in our conceptualization of psychiatric distress? From time to time, inroads are made, for example, the Global Assessment of Relational Functioning was incorporated into the DSM-IV-R and the Cultural Formulation Interview is in the DSM-5. However, without a sustained paradigm shift that places the gene/environment paradigm at the core of psychiatry, these efforts will rise and fall as the pioneers in these fields rise and fall.

A major barrier to moving the gene/environment paradigm more centrally in psychiatry is the prominence of individualism as an American ideal. As the neuroscience of context develops, we will be able to argue more robustly for a contextual approach to patient care.

A second barrier is the difficulty of teaching and learning about complexity. It is easy to learn how to use the DSM to make a diagnosis, to understand when and how to prescribe medications, but it is much more difficult to understand how to incorporate the complexity of life and the context within which we live, into our lexicon of psychiatric theories and treatments. As Tanya Luhrmann, PhD, points out in her study of the process of psychiatric training, residents are intimidated by the need to learn the many psychological theories and their practice; learning about medications is much simpler and takes much less time and effort.⁷

Nevertheless, context is embraced by several psychiatric subspecialties. Family psychiatrists recognize the power of relational dynamics in the family, and their role in shaping the individual. From understanding family communication patterns, to understanding how roles in the family get allocated, family psychiatry has well established tools for assessment and many evidence-based treatments that focus on changing relational dynamics. Social and community psychiatrists emphasize the role of race, poverty, and access, and support the assessment and treatment of the underprivileged. Cultural psychiatrists recognize that each culture has its own way of constructing identities and shaping our experiences, its own conceptualization of illness and specific idioms of distress. Cultural psychiatrists focus on sensitizing the general psychiatrist to these nuances. Child psychiatrists involve parents, and geriatric psychiatrists involve guardians. General psychiatrists understand context when, for example, understanding the role of trauma in the development of an individual, recognizing that its impact is contingent on the context within which the trauma occurs.

Neuroscience clarifies the neural pathways involved in the development of empathic and social behaviors. Our psychological theories and practice must reflect this advancement. We can teach the relevant neuroscience along with basic concepts such as child-parent relationships. We must assess an individual’s degree of fit within their family and community. Apart from asking relational questions, such as who in your world is important to you, we can use well recognized tools to help us bring context to the forefront. An easy tool is the three generational genogram, or an ecomap, which allows each individual to see where they sit in the context of their world.⁸ Cultural influences, societal, religious, and family influences can be drawn on the genogram, highlighting both formal and hidden family narratives. In addition, we can share how the brain works with our patients; the science of empathy and social behaviors shows us that our need for interpersonal connection is hardwired.

Dr. Heru is professor of psychiatry at the University of Colorado Denver, Aurora. She is editor of “Working With Families in Medical Settings: A Multidisciplinary Guide for Psychiatrists and Other Health Professionals” (New York: Routledge, 2013). She has no conflicts of interest to disclose. Contact Dr. Heru at alison.heru@ucdenver.edu.

References

1. Lee TH et al. Families that fire together smile together: Resting state connectome similarity and daily emotional synchrony in parent-child dyads. Neuroimage. 2017 May 15;152:31-37. doi: 10.1016/j.neuroimage.2017.02.078.

2. Lee TH et al. Love flows downstream: Mothers’ and children’s neural representation similarity in perceiving distress of self and family. Soc Cogn Affect Neurosci. 2017 Dec 1;12(12):1916-27. doi: 10.1093/scan/nsx125.

3. Itahashi T et al. Functional connectomes linking child-parent relationships with psychological problems in adolescence. Neuroimage. 2020 Oct 1;219:117013. doi: 10.1016/j.neuroimage.2020.117013.

4. Lengersdorff LL et al. When implicit prosociality trumps selfishness: The neural valuation system underpins more optimal choices when learning to avoid harm to others than to oneself. J Neurosci. 2020 Sep 16;40(38):7286-99. doi: 10.1523/JNEUROSCI.0842-20.2020.

5. Meyer ML et al. Evidence that default network connectivity during rest consolidates social information. Cereb Cortex. 2019 May 1;29(5):1910-20. doi: 10.1093/cercor/bhy071.

6. Tienari P et al. The Finnish adoptive family study of schizophrenia. Implications for family research. Br J Psychiatry Suppl. 1994 Apr;(23):20-6.

7. Luhrmann, TM. Of two minds: The growing disorder in American psychiatry. New York, NY: Alfred A. Knopf, 2000.

8. Libbon R et al. Family skills for the resident toolbox: The 10-min. Genogram, Ecomap, and Prescribing Homework. Acad Psychiatry. 2019 Aug;43(4):435-439. doi: 10.1007/s40596-019-01054-6.

Psychiatry may be emerging from the era of psychopharmacology and entering the era of the brain, but these reductionist, jingoistic labels do little justice to the need to acknowledge and incorporate the context of our lives into our theories and treatments. Yet psychiatrists who embrace context have much to celebrate in evolving neuroscience research.

One aptly named article – ’Families that fire together smile together’ – illustrates the fundamental connection between parent and child.¹ In the functional MRIs (fMRIs) taken of these parent-child dyads (n = 76), the dyads with similar resting state connectomes also have similar day-to-day emotional states, as reflected in their diary entries. Their empathic states were identified in the multivoxel patterns in the fusiform face area of the brain.² Another study of fMRIs and parent-child dyads (n = 93) found that the parental functional connectomes (fbc) predicted their children’s externalizing and internalizing problems. The maternal fbcs were correlated with the daughter-mother relationship, and to the daughter’s internalizing problems, suggesting a potential future focus on gendered relationships.³

The implications for psychotherapy are clear: These studies show that empathic connection between parent and child results in a better outcome for the child. Patient and psychotherapist can choose from a range of psychotherapeutic interventions that promote empathy, from providing behavioral tasks that support connection between parent and child to more in-depth family interventions. Family interventions that promote empathy include increasing the family’s understanding of the importance of empathic connection and providing a safe space to help establish empathic connection.

Studying prosocial behavior, Lukas Lengersdorff and colleagues found that fMRIs of male participants (n = 96) reflected stronger activity when they were acting on behalf of the other, rather than when acting for themselves.⁴ During this prosocial learning fMRI study, there was stronger engagement of the ventromedial prefrontal cortex (PFC) and higher connectivity between the ventromedial PFC and the right temporoparietal junction (rTPJ). Protecting others from harm appears to be associated with neural mechanisms that support self-relevant learning, but with the added recruitment of structures associated with the social brain. This study shows what we already know – that our brains are wired for social context. This research supports psychotherapeutic interventions aimed at creating interpersonal connection, not just at an intimate level, but also at the prosocial level, such as caring and helping others.

When social interactions are coded, the default mode network (DMN) shows increased activity. Participants (n = 11) in another study had heightened medial PFC–rTPJ connectivity, not only during rest that followed the experimental social encoding, but also during rest that followed a subsequent, nonsocial task.⁵ Engaging portions of the DMN during live social interactions when actively decoding the social environment, and later engaging these regions when relaxing after the social interaction, appears to facilitate social functioning. Our brains are wired to respond to context. This research underscores the positive impact of interventions such as group therapy and support groups, two underutilized modalities.

Neuroscience evaluation of our relationships provides depth to studies that fall under the medical paradigm of the gene/environment interaction. One of the most elegant in psychiatry is the Finnish study of a sample of offspring of mothers with schizophrenia who gave their children up for adoption.⁶ This sample of index offspring (n = 155) was compared blindly with matched controls (n = 186) of adopted/away offspring of parents without schizophrenia. The genetic effect manifested only as a psychiatric disorder in the presence of a disturbed family environment. We can now extrapolate certain possible mechanisms from the studies mentioned above: That the deficits lie in the activity or lack of activity in the DMN and associated areas, and in the generation of connectomes responsible for empathic connections.

Neuroscience expands our knowledge of our relational and social worlds, but can psychiatry make the case for inclusion of context in our conceptualization of psychiatric distress? From time to time, inroads are made, for example, the Global Assessment of Relational Functioning was incorporated into the DSM-IV-R and the Cultural Formulation Interview is in the DSM-5. However, without a sustained paradigm shift that places the gene/environment paradigm at the core of psychiatry, these efforts will rise and fall as the pioneers in these fields rise and fall.

A major barrier to moving the gene/environment paradigm more centrally in psychiatry is the prominence of individualism as an American ideal. As the neuroscience of context develops, we will be able to argue more robustly for a contextual approach to patient care.

A second barrier is the difficulty of teaching and learning about complexity. It is easy to learn how to use the DSM to make a diagnosis, to understand when and how to prescribe medications, but it is much more difficult to understand how to incorporate the complexity of life and the context within which we live, into our lexicon of psychiatric theories and treatments. As Tanya Luhrmann, PhD, points out in her study of the process of psychiatric training, residents are intimidated by the need to learn the many psychological theories and their practice; learning about medications is much simpler and takes much less time and effort.⁷

Nevertheless, context is embraced by several psychiatric subspecialties. Family psychiatrists recognize the power of relational dynamics in the family, and their role in shaping the individual. From understanding family communication patterns, to understanding how roles in the family get allocated, family psychiatry has well established tools for assessment and many evidence-based treatments that focus on changing relational dynamics. Social and community psychiatrists emphasize the role of race, poverty, and access, and support the assessment and treatment of the underprivileged. Cultural psychiatrists recognize that each culture has its own way of constructing identities and shaping our experiences, its own conceptualization of illness and specific idioms of distress. Cultural psychiatrists focus on sensitizing the general psychiatrist to these nuances. Child psychiatrists involve parents, and geriatric psychiatrists involve guardians. General psychiatrists understand context when, for example, understanding the role of trauma in the development of an individual, recognizing that its impact is contingent on the context within which the trauma occurs.

Neuroscience clarifies the neural pathways involved in the development of empathic and social behaviors. Our psychological theories and practice must reflect this advancement. We can teach the relevant neuroscience along with basic concepts such as child-parent relationships. We must assess an individual’s degree of fit within their family and community. Apart from asking relational questions, such as who in your world is important to you, we can use well recognized tools to help us bring context to the forefront. An easy tool is the three generational genogram, or an ecomap, which allows each individual to see where they sit in the context of their world.⁸ Cultural influences, societal, religious, and family influences can be drawn on the genogram, highlighting both formal and hidden family narratives. In addition, we can share how the brain works with our patients; the science of empathy and social behaviors shows us that our need for interpersonal connection is hardwired.

Dr. Heru is professor of psychiatry at the University of Colorado Denver, Aurora. She is editor of “Working With Families in Medical Settings: A Multidisciplinary Guide for Psychiatrists and Other Health Professionals” (New York: Routledge, 2013). She has no conflicts of interest to disclose. Contact Dr. Heru at alison.heru@ucdenver.edu.

References

1. Lee TH et al. Families that fire together smile together: Resting state connectome similarity and daily emotional synchrony in parent-child dyads. Neuroimage. 2017 May 15;152:31-37. doi: 10.1016/j.neuroimage.2017.02.078.

2. Lee TH et al. Love flows downstream: Mothers’ and children’s neural representation similarity in perceiving distress of self and family. Soc Cogn Affect Neurosci. 2017 Dec 1;12(12):1916-27. doi: 10.1093/scan/nsx125.

3. Itahashi T et al. Functional connectomes linking child-parent relationships with psychological problems in adolescence. Neuroimage. 2020 Oct 1;219:117013. doi: 10.1016/j.neuroimage.2020.117013.

4. Lengersdorff LL et al. When implicit prosociality trumps selfishness: The neural valuation system underpins more optimal choices when learning to avoid harm to others than to oneself. J Neurosci. 2020 Sep 16;40(38):7286-99. doi: 10.1523/JNEUROSCI.0842-20.2020.

5. Meyer ML et al. Evidence that default network connectivity during rest consolidates social information. Cereb Cortex. 2019 May 1;29(5):1910-20. doi: 10.1093/cercor/bhy071.

6. Tienari P et al. The Finnish adoptive family study of schizophrenia. Implications for family research. Br J Psychiatry Suppl. 1994 Apr;(23):20-6.

7. Luhrmann, TM. Of two minds: The growing disorder in American psychiatry. New York, NY: Alfred A. Knopf, 2000.

8. Libbon R et al. Family skills for the resident toolbox: The 10-min. Genogram, Ecomap, and Prescribing Homework. Acad Psychiatry. 2019 Aug;43(4):435-439. doi: 10.1007/s40596-019-01054-6.

Psychiatry may be emerging from the era of psychopharmacology and entering the era of the brain, but these reductionist, jingoistic labels do little justice to the need to acknowledge and incorporate the context of our lives into our theories and treatments. Yet psychiatrists who embrace context have much to celebrate in evolving neuroscience research.

One aptly named article – ’Families that fire together smile together’ – illustrates the fundamental connection between parent and child.¹ In the functional MRIs (fMRIs) taken of these parent-child dyads (n = 76), the dyads with similar resting state connectomes also have similar day-to-day emotional states, as reflected in their diary entries. Their empathic states were identified in the multivoxel patterns in the fusiform face area of the brain.² Another study of fMRIs and parent-child dyads (n = 93) found that the parental functional connectomes (fbc) predicted their children’s externalizing and internalizing problems. The maternal fbcs were correlated with the daughter-mother relationship, and to the daughter’s internalizing problems, suggesting a potential future focus on gendered relationships.³

The implications for psychotherapy are clear: These studies show that empathic connection between parent and child results in a better outcome for the child. Patient and psychotherapist can choose from a range of psychotherapeutic interventions that promote empathy, from providing behavioral tasks that support connection between parent and child to more in-depth family interventions. Family interventions that promote empathy include increasing the family’s understanding of the importance of empathic connection and providing a safe space to help establish empathic connection.

Studying prosocial behavior, Lukas Lengersdorff and colleagues found that fMRIs of male participants (n = 96) reflected stronger activity when they were acting on behalf of the other, rather than when acting for themselves.⁴ During this prosocial learning fMRI study, there was stronger engagement of the ventromedial prefrontal cortex (PFC) and higher connectivity between the ventromedial PFC and the right temporoparietal junction (rTPJ). Protecting others from harm appears to be associated with neural mechanisms that support self-relevant learning, but with the added recruitment of structures associated with the social brain. This study shows what we already know – that our brains are wired for social context. This research supports psychotherapeutic interventions aimed at creating interpersonal connection, not just at an intimate level, but also at the prosocial level, such as caring and helping others.

When social interactions are coded, the default mode network (DMN) shows increased activity. Participants (n = 11) in another study had heightened medial PFC–rTPJ connectivity, not only during rest that followed the experimental social encoding, but also during rest that followed a subsequent, nonsocial task.⁵ Engaging portions of the DMN during live social interactions when actively decoding the social environment, and later engaging these regions when relaxing after the social interaction, appears to facilitate social functioning. Our brains are wired to respond to context. This research underscores the positive impact of interventions such as group therapy and support groups, two underutilized modalities.

Neuroscience evaluation of our relationships provides depth to studies that fall under the medical paradigm of the gene/environment interaction. One of the most elegant in psychiatry is the Finnish study of a sample of offspring of mothers with schizophrenia who gave their children up for adoption.⁶ This sample of index offspring (n = 155) was compared blindly with matched controls (n = 186) of adopted/away offspring of parents without schizophrenia. The genetic effect manifested only as a psychiatric disorder in the presence of a disturbed family environment. We can now extrapolate certain possible mechanisms from the studies mentioned above: That the deficits lie in the activity or lack of activity in the DMN and associated areas, and in the generation of connectomes responsible for empathic connections.

Neuroscience expands our knowledge of our relational and social worlds, but can psychiatry make the case for inclusion of context in our conceptualization of psychiatric distress? From time to time, inroads are made, for example, the Global Assessment of Relational Functioning was incorporated into the DSM-IV-R and the Cultural Formulation Interview is in the DSM-5. However, without a sustained paradigm shift that places the gene/environment paradigm at the core of psychiatry, these efforts will rise and fall as the pioneers in these fields rise and fall.

A major barrier to moving the gene/environment paradigm more centrally in psychiatry is the prominence of individualism as an American ideal. As the neuroscience of context develops, we will be able to argue more robustly for a contextual approach to patient care.

A second barrier is the difficulty of teaching and learning about complexity. It is easy to learn how to use the DSM to make a diagnosis, to understand when and how to prescribe medications, but it is much more difficult to understand how to incorporate the complexity of life and the context within which we live, into our lexicon of psychiatric theories and treatments. As Tanya Luhrmann, PhD, points out in her study of the process of psychiatric training, residents are intimidated by the need to learn the many psychological theories and their practice; learning about medications is much simpler and takes much less time and effort.⁷

Nevertheless, context is embraced by several psychiatric subspecialties. Family psychiatrists recognize the power of relational dynamics in the family, and their role in shaping the individual. From understanding family communication patterns, to understanding how roles in the family get allocated, family psychiatry has well established tools for assessment and many evidence-based treatments that focus on changing relational dynamics. Social and community psychiatrists emphasize the role of race, poverty, and access, and support the assessment and treatment of the underprivileged. Cultural psychiatrists recognize that each culture has its own way of constructing identities and shaping our experiences, its own conceptualization of illness and specific idioms of distress. Cultural psychiatrists focus on sensitizing the general psychiatrist to these nuances. Child psychiatrists involve parents, and geriatric psychiatrists involve guardians. General psychiatrists understand context when, for example, understanding the role of trauma in the development of an individual, recognizing that its impact is contingent on the context within which the trauma occurs.

Neuroscience clarifies the neural pathways involved in the development of empathic and social behaviors. Our psychological theories and practice must reflect this advancement. We can teach the relevant neuroscience along with basic concepts such as child-parent relationships. We must assess an individual’s degree of fit within their family and community. Apart from asking relational questions, such as who in your world is important to you, we can use well recognized tools to help us bring context to the forefront. An easy tool is the three generational genogram, or an ecomap, which allows each individual to see where they sit in the context of their world.⁸ Cultural influences, societal, religious, and family influences can be drawn on the genogram, highlighting both formal and hidden family narratives. In addition, we can share how the brain works with our patients; the science of empathy and social behaviors shows us that our need for interpersonal connection is hardwired.

Dr. Heru is professor of psychiatry at the University of Colorado Denver, Aurora. She is editor of “Working With Families in Medical Settings: A Multidisciplinary Guide for Psychiatrists and Other Health Professionals” (New York: Routledge, 2013). She has no conflicts of interest to disclose. Contact Dr. Heru at alison.heru@ucdenver.edu.

References

1. Lee TH et al. Families that fire together smile together: Resting state connectome similarity and daily emotional synchrony in parent-child dyads. Neuroimage. 2017 May 15;152:31-37. doi: 10.1016/j.neuroimage.2017.02.078.

2. Lee TH et al. Love flows downstream: Mothers’ and children’s neural representation similarity in perceiving distress of self and family. Soc Cogn Affect Neurosci. 2017 Dec 1;12(12):1916-27. doi: 10.1093/scan/nsx125.

3. Itahashi T et al. Functional connectomes linking child-parent relationships with psychological problems in adolescence. Neuroimage. 2020 Oct 1;219:117013. doi: 10.1016/j.neuroimage.2020.117013.

4. Lengersdorff LL et al. When implicit prosociality trumps selfishness: The neural valuation system underpins more optimal choices when learning to avoid harm to others than to oneself. J Neurosci. 2020 Sep 16;40(38):7286-99. doi: 10.1523/JNEUROSCI.0842-20.2020.

5. Meyer ML et al. Evidence that default network connectivity during rest consolidates social information. Cereb Cortex. 2019 May 1;29(5):1910-20. doi: 10.1093/cercor/bhy071.

6. Tienari P et al. The Finnish adoptive family study of schizophrenia. Implications for family research. Br J Psychiatry Suppl. 1994 Apr;(23):20-6.

7. Luhrmann, TM. Of two minds: The growing disorder in American psychiatry. New York, NY: Alfred A. Knopf, 2000.

8. Libbon R et al. Family skills for the resident toolbox: The 10-min. Genogram, Ecomap, and Prescribing Homework. Acad Psychiatry. 2019 Aug;43(4):435-439. doi: 10.1007/s40596-019-01054-6.

Loss of vestibular function is a key contributor to a well-documented increased risk for falls in patients with Alzheimer’s disease (AD), new research confirms.

Falls are twice as common in patients with AD versu older individuals without the disorder and significantly increase the likelihood of institutionalization.

However, researchers recorded fewer falls in patients with a better functioning vestibular system, which detects head movements and plays a critical role in spatial orientation, posture, gait, and balance.

The results suggest that improving vestibular function with currently available therapies may prevent falls, something the researchers will investigate in a new clinical trial launching next month.

“One of the most dangerous and impactful symptoms in terms of function in patients with Alzheimer’s disease is their increased predisposition to falls,” study investigator Yuri Agrawal, MD, department of otolaryngology–head and neck surgery, Johns Hopkins University School of Medicine, Baltimore, said in an interview. “Alzheimer’s is the sixth leading cause of death in the U.S., and some people actually say that that high mortality rate is because of their predisposition to falls and the injuries that occur.”

The study was published online Feb. 14 in the Journal of Alzheimer’s Disease.
 

The ‘sixth hidden sense’

The vestibular system consists of three semicircular canals, which detect rotational head movement, and two otolith organs called the utricle and the saccule, which sense linear head movements and the orientation of the head with respect to gravity.

“We call the vestibular system the sixth hidden sense because it’s not a conscious perception like taste or smell,” Dr. Agrawal said. “It’s constantly providing input to our brain about where we are in space.”

Dr. Agrawal and colleagues previously reported that vestibular loss is twice as common in Alzheimer’s patients as in cognitively unimpaired age-matched controls. Now, they wanted to know if this sensory loss was associated with an increased risk for falls in this population.

The study included 48 patients age greater than or equal to 60 years with mild-to-moderate AD between 2018 and 2020. They also included an age-matched control group of healthy controls with no cognitive impairment.

Researchers assessed vestibular function at baseline by measuring semicircular canal and saccular function. One test required participants to wear goggles and complete a series of tests with their eyes open and closed while researchers recorded their eye movement with video-oculography. They also measured participants’ balance using the Berg Balance Scale.

Relative to matched controls, AD patients exhibited increased lateral instability when their eyes were open (P = .033) and closed (P = .042). Studies suggest that lateral stability declines more quickly with age and that instability with eyes closed is the single biggest predictor of incident falls in community-dwelling adults.

To determine if poor vestibular function increased fall risk in patients with AD, researchers followed the cohort for up to 2 years.

“We found that patients with vestibular loss at baseline were 50% more likely to fall, adjusting for other factors that could contribute to that,” Dr. Agrawal said.

Specifically, better semicircular canal function was significantly associated with lower likelihood of falls, even after adjusting for confounders (adjusted hazard ratio, 0.65; P = .009).
 

Can therapy help?

Commenting on the findings, James Burke, MD, PhD, professor of neurology at Duke University Medical Center, Durham, N.C., said that the finding that impaired vestibular function is associated with increased falls “significantly advances our understanding of the topic” and suggests that treating vestibular dysfunction could reduce falls in Alzheimer’s patients.

“Screening patients with Alzheimer’s disease for impaired vestibular function could lead to identification of individuals at high risk of falls and target those who would benefit from vestibular therapy,” he said.

Vestibular rehabilitation therapy is often used to treat a number of disorders related to vestibular function loss. There are also studies underway to measure the efficacy of a vestibular implant that works much like a cochlear implant.

While evaluation of vestibular function is currently not routinely included in AD care, studies such as these suggest it may be time to consider adding it to the standard of care, Jennifer Coto, PhD, assistant professor of otolaryngology at the University of Miami Miller School of Medicine, said in an interview.

“Best practice guidelines for management of Alzheimer’s patients should be revised to include routine vestibular evaluation and support from a multidisciplinary team that may address other crucial areas of functioning, particularly psychological functioning, sleep, and independence,” she said.

“Future research also needs to evaluate the effectiveness of vestibular therapy in patients with Alzheimer’s and the benefits of early identification and intervention for preventing recurrent falls.”

Dr. Agrawal is leading a 5-year, $3.5 million National Institute on Aging study that seeks to do just that. Enrollment in the study begins next month. Patients will complete an initial in-person screening, but the remainder of the study will be conducted virtually.

Therapies will be noninvasive, nonpharmaceutical, and performed in participants’ homes. If the therapy is successful at reducing falls, Dr. Agrawal said the virtual design would significantly broaden its potential patient reach.

The study was funded by the National Institute on Aging. Study authors’ disclosures are reported in the original article. Dr. Coto and Dr. Burke report no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Loss of vestibular function is a key contributor to a well-documented increased risk for falls in patients with Alzheimer’s disease (AD), new research confirms.

Falls are twice as common in patients with AD versu older individuals without the disorder and significantly increase the likelihood of institutionalization.

However, researchers recorded fewer falls in patients with a better functioning vestibular system, which detects head movements and plays a critical role in spatial orientation, posture, gait, and balance.

The results suggest that improving vestibular function with currently available therapies may prevent falls, something the researchers will investigate in a new clinical trial launching next month.

“One of the most dangerous and impactful symptoms in terms of function in patients with Alzheimer’s disease is their increased predisposition to falls,” study investigator Yuri Agrawal, MD, department of otolaryngology–head and neck surgery, Johns Hopkins University School of Medicine, Baltimore, said in an interview. “Alzheimer’s is the sixth leading cause of death in the U.S., and some people actually say that that high mortality rate is because of their predisposition to falls and the injuries that occur.”

The study was published online Feb. 14 in the Journal of Alzheimer’s Disease.
 

The ‘sixth hidden sense’

The vestibular system consists of three semicircular canals, which detect rotational head movement, and two otolith organs called the utricle and the saccule, which sense linear head movements and the orientation of the head with respect to gravity.

“We call the vestibular system the sixth hidden sense because it’s not a conscious perception like taste or smell,” Dr. Agrawal said. “It’s constantly providing input to our brain about where we are in space.”

Dr. Agrawal and colleagues previously reported that vestibular loss is twice as common in Alzheimer’s patients as in cognitively unimpaired age-matched controls. Now, they wanted to know if this sensory loss was associated with an increased risk for falls in this population.

The study included 48 patients age greater than or equal to 60 years with mild-to-moderate AD between 2018 and 2020. They also included an age-matched control group of healthy controls with no cognitive impairment.

Researchers assessed vestibular function at baseline by measuring semicircular canal and saccular function. One test required participants to wear goggles and complete a series of tests with their eyes open and closed while researchers recorded their eye movement with video-oculography. They also measured participants’ balance using the Berg Balance Scale.

Relative to matched controls, AD patients exhibited increased lateral instability when their eyes were open (P = .033) and closed (P = .042). Studies suggest that lateral stability declines more quickly with age and that instability with eyes closed is the single biggest predictor of incident falls in community-dwelling adults.

To determine if poor vestibular function increased fall risk in patients with AD, researchers followed the cohort for up to 2 years.

“We found that patients with vestibular loss at baseline were 50% more likely to fall, adjusting for other factors that could contribute to that,” Dr. Agrawal said.

Specifically, better semicircular canal function was significantly associated with lower likelihood of falls, even after adjusting for confounders (adjusted hazard ratio, 0.65; P = .009).
 

Can therapy help?

Commenting on the findings, James Burke, MD, PhD, professor of neurology at Duke University Medical Center, Durham, N.C., said that the finding that impaired vestibular function is associated with increased falls “significantly advances our understanding of the topic” and suggests that treating vestibular dysfunction could reduce falls in Alzheimer’s patients.

“Screening patients with Alzheimer’s disease for impaired vestibular function could lead to identification of individuals at high risk of falls and target those who would benefit from vestibular therapy,” he said.

Vestibular rehabilitation therapy is often used to treat a number of disorders related to vestibular function loss. There are also studies underway to measure the efficacy of a vestibular implant that works much like a cochlear implant.

While evaluation of vestibular function is currently not routinely included in AD care, studies such as these suggest it may be time to consider adding it to the standard of care, Jennifer Coto, PhD, assistant professor of otolaryngology at the University of Miami Miller School of Medicine, said in an interview.

“Best practice guidelines for management of Alzheimer’s patients should be revised to include routine vestibular evaluation and support from a multidisciplinary team that may address other crucial areas of functioning, particularly psychological functioning, sleep, and independence,” she said.

“Future research also needs to evaluate the effectiveness of vestibular therapy in patients with Alzheimer’s and the benefits of early identification and intervention for preventing recurrent falls.”

Dr. Agrawal is leading a 5-year, $3.5 million National Institute on Aging study that seeks to do just that. Enrollment in the study begins next month. Patients will complete an initial in-person screening, but the remainder of the study will be conducted virtually.

Therapies will be noninvasive, nonpharmaceutical, and performed in participants’ homes. If the therapy is successful at reducing falls, Dr. Agrawal said the virtual design would significantly broaden its potential patient reach.

The study was funded by the National Institute on Aging. Study authors’ disclosures are reported in the original article. Dr. Coto and Dr. Burke report no relevant financial relationships.

A version of this article first appeared on Medscape.com.

Loss of vestibular function is a key contributor to a well-documented increased risk for falls in patients with Alzheimer’s disease (AD), new research confirms.

Falls are twice as common in patients with AD versu older individuals without the disorder and significantly increase the likelihood of institutionalization.

However, researchers recorded fewer falls in patients with a better functioning vestibular system, which detects head movements and plays a critical role in spatial orientation, posture, gait, and balance.

The results suggest that improving vestibular function with currently available therapies may prevent falls, something the researchers will investigate in a new clinical trial launching next month.

“One of the most dangerous and impactful symptoms in terms of function in patients with Alzheimer’s disease is their increased predisposition to falls,” study investigator Yuri Agrawal, MD, department of otolaryngology–head and neck surgery, Johns Hopkins University School of Medicine, Baltimore, said in an interview. “Alzheimer’s is the sixth leading cause of death in the U.S., and some people actually say that that high mortality rate is because of their predisposition to falls and the injuries that occur.”

The study was published online Feb. 14 in the Journal of Alzheimer’s Disease.
 

The ‘sixth hidden sense’

The vestibular system consists of three semicircular canals, which detect rotational head movement, and two otolith organs called the utricle and the saccule, which sense linear head movements and the orientation of the head with respect to gravity.

“We call the vestibular system the sixth hidden sense because it’s not a conscious perception like taste or smell,” Dr. Agrawal said. “It’s constantly providing input to our brain about where we are in space.”

Dr. Agrawal and colleagues previously reported that vestibular loss is twice as common in Alzheimer’s patients as in cognitively unimpaired age-matched controls. Now, they wanted to know if this sensory loss was associated with an increased risk for falls in this population.

The study included 48 patients age greater than or equal to 60 years with mild-to-moderate AD between 2018 and 2020. They also included an age-matched control group of healthy controls with no cognitive impairment.

Researchers assessed vestibular function at baseline by measuring semicircular canal and saccular function. One test required participants to wear goggles and complete a series of tests with their eyes open and closed while researchers recorded their eye movement with video-oculography. They also measured participants’ balance using the Berg Balance Scale.

Relative to matched controls, AD patients exhibited increased lateral instability when their eyes were open (P = .033) and closed (P = .042). Studies suggest that lateral stability declines more quickly with age and that instability with eyes closed is the single biggest predictor of incident falls in community-dwelling adults.

To determine if poor vestibular function increased fall risk in patients with AD, researchers followed the cohort for up to 2 years.

“We found that patients with vestibular loss at baseline were 50% more likely to fall, adjusting for other factors that could contribute to that,” Dr. Agrawal said.

Specifically, better semicircular canal function was significantly associated with lower likelihood of falls, even after adjusting for confounders (adjusted hazard ratio, 0.65; P = .009).
 

Can therapy help?

Commenting on the findings, James Burke, MD, PhD, professor of neurology at Duke University Medical Center, Durham, N.C., said that the finding that impaired vestibular function is associated with increased falls “significantly advances our understanding of the topic” and suggests that treating vestibular dysfunction could reduce falls in Alzheimer’s patients.

“Screening patients with Alzheimer’s disease for impaired vestibular function could lead to identification of individuals at high risk of falls and target those who would benefit from vestibular therapy,” he said.

Vestibular rehabilitation therapy is often used to treat a number of disorders related to vestibular function loss. There are also studies underway to measure the efficacy of a vestibular implant that works much like a cochlear implant.

While evaluation of vestibular function is currently not routinely included in AD care, studies such as these suggest it may be time to consider adding it to the standard of care, Jennifer Coto, PhD, assistant professor of otolaryngology at the University of Miami Miller School of Medicine, said in an interview.

“Best practice guidelines for management of Alzheimer’s patients should be revised to include routine vestibular evaluation and support from a multidisciplinary team that may address other crucial areas of functioning, particularly psychological functioning, sleep, and independence,” she said.

“Future research also needs to evaluate the effectiveness of vestibular therapy in patients with Alzheimer’s and the benefits of early identification and intervention for preventing recurrent falls.”

Dr. Agrawal is leading a 5-year, $3.5 million National Institute on Aging study that seeks to do just that. Enrollment in the study begins next month. Patients will complete an initial in-person screening, but the remainder of the study will be conducted virtually.

Therapies will be noninvasive, nonpharmaceutical, and performed in participants’ homes. If the therapy is successful at reducing falls, Dr. Agrawal said the virtual design would significantly broaden its potential patient reach.

The study was funded by the National Institute on Aging. Study authors’ disclosures are reported in the original article. Dr. Coto and Dr. Burke report no relevant financial relationships.

A version of this article first appeared on Medscape.com.

It’s no secret that heavy drinking is linked to potential health problems, from liver damage to a higher risk of cancer. But most people probably wouldn’t think a nightcap every evening is much of a health threat.

Now, new evidence published in Nature Communications suggests even one drink a day is linked to detectable changes in the brain, though it’s not clear whether the alcohol is causing the differences.

Previous research has found that people with alcohol use disorder have structural changes in their brains, compared with healthy people’s brains, such as reduced gray-matter and white-matter volume.

But those findings were in people with a history of heavy drinking, defined by the National Institute on Alcohol Abuse and Alcoholism as more than four drinks a day for men and more than three drinks a day for women.

The national dietary guidelines from the U.S. Department of Health & Human Services advise drinking no more than two standard drinks for men and one drink for women each day. A standard drink in the United States is 12 ounces of beer, 5 ounces of wine, or 1½ ounce of liquor.

But could even this modest amount of alcohol make a difference to our brains?

Researchers examined functional MRI brain scans from 36,678 healthy adults, aged 40-69 years, in the United Kingdom and compared those findings with their weekly alcohol consumption, adjusting for differences in age, sex, height, social and economic status, and country of residence, among other things.

In line with past studies, the researchers found that, as a person drank more alcohol, their gray-matter and white-matter volume decreased, getting worse the more drinks they had in a week.

But the researchers also noted that they could tell the difference between brain images of people who never drank alcohol and those who had just one or two drinks a day.

Going from 1 unit of alcohol to 2 – which in the United Kingdom means a full pint of beer or standard glass of wine – was linked to changes similar to 2 years of aging in the brain.

Other than comparing the changes with aging, it’s not yet clear what the findings mean until the scientists do more research, including looking at the genes of the people who took part in the study.

The study also has several drawbacks. The people who were studied are all middle-aged Europeans, so findings might be different in younger people or those with different ancestries. People also self-reported how much alcohol they drank for the past year, which they might not remember correctly or which might be different from previous years, including past years of heavy drinking.

And since the researchers compared drinking habits with brain imaging at one point in time, it’s not possible to say whether alcohol is actually causing the brain differences they saw.

Still, the findings raise the question of whether national guidelines should be revisited, and whether it’s better to cut that evening drink to a half-glass of wine instead.

A version of this article first appeared on WebMD.com.

It’s no secret that heavy drinking is linked to potential health problems, from liver damage to a higher risk of cancer. But most people probably wouldn’t think a nightcap every evening is much of a health threat.

Now, new evidence published in Nature Communications suggests even one drink a day is linked to detectable changes in the brain, though it’s not clear whether the alcohol is causing the differences.

Previous research has found that people with alcohol use disorder have structural changes in their brains, compared with healthy people’s brains, such as reduced gray-matter and white-matter volume.

But those findings were in people with a history of heavy drinking, defined by the National Institute on Alcohol Abuse and Alcoholism as more than four drinks a day for men and more than three drinks a day for women.

The national dietary guidelines from the U.S. Department of Health & Human Services advise drinking no more than two standard drinks for men and one drink for women each day. A standard drink in the United States is 12 ounces of beer, 5 ounces of wine, or 1½ ounce of liquor.

But could even this modest amount of alcohol make a difference to our brains?

Researchers examined functional MRI brain scans from 36,678 healthy adults, aged 40-69 years, in the United Kingdom and compared those findings with their weekly alcohol consumption, adjusting for differences in age, sex, height, social and economic status, and country of residence, among other things.

In line with past studies, the researchers found that, as a person drank more alcohol, their gray-matter and white-matter volume decreased, getting worse the more drinks they had in a week.

But the researchers also noted that they could tell the difference between brain images of people who never drank alcohol and those who had just one or two drinks a day.

Going from 1 unit of alcohol to 2 – which in the United Kingdom means a full pint of beer or standard glass of wine – was linked to changes similar to 2 years of aging in the brain.

Other than comparing the changes with aging, it’s not yet clear what the findings mean until the scientists do more research, including looking at the genes of the people who took part in the study.

The study also has several drawbacks. The people who were studied are all middle-aged Europeans, so findings might be different in younger people or those with different ancestries. People also self-reported how much alcohol they drank for the past year, which they might not remember correctly or which might be different from previous years, including past years of heavy drinking.

And since the researchers compared drinking habits with brain imaging at one point in time, it’s not possible to say whether alcohol is actually causing the brain differences they saw.

Still, the findings raise the question of whether national guidelines should be revisited, and whether it’s better to cut that evening drink to a half-glass of wine instead.

A version of this article first appeared on WebMD.com.

It’s no secret that heavy drinking is linked to potential health problems, from liver damage to a higher risk of cancer. But most people probably wouldn’t think a nightcap every evening is much of a health threat.

Now, new evidence published in Nature Communications suggests even one drink a day is linked to detectable changes in the brain, though it’s not clear whether the alcohol is causing the differences.

Previous research has found that people with alcohol use disorder have structural changes in their brains, compared with healthy people’s brains, such as reduced gray-matter and white-matter volume.

But those findings were in people with a history of heavy drinking, defined by the National Institute on Alcohol Abuse and Alcoholism as more than four drinks a day for men and more than three drinks a day for women.

The national dietary guidelines from the U.S. Department of Health & Human Services advise drinking no more than two standard drinks for men and one drink for women each day. A standard drink in the United States is 12 ounces of beer, 5 ounces of wine, or 1½ ounce of liquor.

But could even this modest amount of alcohol make a difference to our brains?

Researchers examined functional MRI brain scans from 36,678 healthy adults, aged 40-69 years, in the United Kingdom and compared those findings with their weekly alcohol consumption, adjusting for differences in age, sex, height, social and economic status, and country of residence, among other things.

In line with past studies, the researchers found that, as a person drank more alcohol, their gray-matter and white-matter volume decreased, getting worse the more drinks they had in a week.

But the researchers also noted that they could tell the difference between brain images of people who never drank alcohol and those who had just one or two drinks a day.

Going from 1 unit of alcohol to 2 – which in the United Kingdom means a full pint of beer or standard glass of wine – was linked to changes similar to 2 years of aging in the brain.

Other than comparing the changes with aging, it’s not yet clear what the findings mean until the scientists do more research, including looking at the genes of the people who took part in the study.

The study also has several drawbacks. The people who were studied are all middle-aged Europeans, so findings might be different in younger people or those with different ancestries. People also self-reported how much alcohol they drank for the past year, which they might not remember correctly or which might be different from previous years, including past years of heavy drinking.

And since the researchers compared drinking habits with brain imaging at one point in time, it’s not possible to say whether alcohol is actually causing the brain differences they saw.

Still, the findings raise the question of whether national guidelines should be revisited, and whether it’s better to cut that evening drink to a half-glass of wine instead.

A version of this article first appeared on WebMD.com.

The Food and Drug Administration has approved donepezil transdermal system (Adlarity) for patients with mild, moderate, or severe Alzheimer’s disease, the manufacturer has announced.

Adlarity is the first and only once-weekly patch to continuously deliver consistent doses of the acetylcholinesterase inhibitor through the skin, bypassing the digestive system and resulting in low likelihood of gastrointestinal side effects associated with oral donepezil, the company said in a press release.

Each patch delivers either 5 mg or 10 mg of donepezil daily for 7 days. After that, it is removed and a new patch is applied.

“The availability of a once-weekly patch formulation of donepezil has the potential to substantially benefit patients, caregivers, and health care providers,” Pierre Tariot, MD, director of the Banner Alzheimer’s Institute, Phoenix, said in the release.

“It offers effective, well-tolerated, and stable dosing for 7 days for patients who cannot take daily oral donepezil reliably because of impaired memory. It can also offer benefits for those patients who have diminished ability to swallow or have GI side effects associated with ingestion of oral donepezil,” Dr. Tariot added.

The FDA approved Adlarity through the 505(b)(2) regulatory pathway, which allows the agency to refer to previous findings of safety and efficacy for an already-approved product, as well as to review findings from further studies of the product.

The company expects the donepezil transdermal patch to be available in early Fall 2022.

A version of this article first appeared on Medscape.com.

The Food and Drug Administration has approved donepezil transdermal system (Adlarity) for patients with mild, moderate, or severe Alzheimer’s disease, the manufacturer has announced.

Adlarity is the first and only once-weekly patch to continuously deliver consistent doses of the acetylcholinesterase inhibitor through the skin, bypassing the digestive system and resulting in low likelihood of gastrointestinal side effects associated with oral donepezil, the company said in a press release.

Each patch delivers either 5 mg or 10 mg of donepezil daily for 7 days. After that, it is removed and a new patch is applied.

“The availability of a once-weekly patch formulation of donepezil has the potential to substantially benefit patients, caregivers, and health care providers,” Pierre Tariot, MD, director of the Banner Alzheimer’s Institute, Phoenix, said in the release.

“It offers effective, well-tolerated, and stable dosing for 7 days for patients who cannot take daily oral donepezil reliably because of impaired memory. It can also offer benefits for those patients who have diminished ability to swallow or have GI side effects associated with ingestion of oral donepezil,” Dr. Tariot added.

The FDA approved Adlarity through the 505(b)(2) regulatory pathway, which allows the agency to refer to previous findings of safety and efficacy for an already-approved product, as well as to review findings from further studies of the product.

The company expects the donepezil transdermal patch to be available in early Fall 2022.

A version of this article first appeared on Medscape.com.

The Food and Drug Administration has approved donepezil transdermal system (Adlarity) for patients with mild, moderate, or severe Alzheimer’s disease, the manufacturer has announced.

Adlarity is the first and only once-weekly patch to continuously deliver consistent doses of the acetylcholinesterase inhibitor through the skin, bypassing the digestive system and resulting in low likelihood of gastrointestinal side effects associated with oral donepezil, the company said in a press release.

Each patch delivers either 5 mg or 10 mg of donepezil daily for 7 days. After that, it is removed and a new patch is applied.

“The availability of a once-weekly patch formulation of donepezil has the potential to substantially benefit patients, caregivers, and health care providers,” Pierre Tariot, MD, director of the Banner Alzheimer’s Institute, Phoenix, said in the release.

“It offers effective, well-tolerated, and stable dosing for 7 days for patients who cannot take daily oral donepezil reliably because of impaired memory. It can also offer benefits for those patients who have diminished ability to swallow or have GI side effects associated with ingestion of oral donepezil,” Dr. Tariot added.

The FDA approved Adlarity through the 505(b)(2) regulatory pathway, which allows the agency to refer to previous findings of safety and efficacy for an already-approved product, as well as to review findings from further studies of the product.

The company expects the donepezil transdermal patch to be available in early Fall 2022.

A version of this article first appeared on Medscape.com.

The American Academy of Neurology (AAN) has released new expert guidance on palliative care for patients with stroke, dementia, Parkinson’s disease, and other neurologic disorders.

Palliative care includes much more than hospice services, lead author of the new position statement Lynne P. Taylor, MD, University of Washington, Seattle, and a fellow of the AAN, said in a press release.

“Neurologists provide palliative care to people living with life-altering neurologic illnesses not just at the end of life but throughout the course of a disease, improving their lives with symptom control,” Dr. Taylor added.

The position paper, developed by a joint committee of the AAN, American Neurological Association, and Child Neurology Society, was published online March 8 in Neurology.
 

Guidance across the lifespan

The new paper, an update of previous position statements, includes palliative care guidance for different neurologic disorders across the lifespan. For example, neuropalliative care for neonates deserves “extra consideration,” because one-third of pediatric deaths occur during the neonatal period, most often in the neonatal intensive care unit, and after withdrawal of life-sustaining interventions, the authors note.

For older children, neuropalliative care consultation benefits families trying to maximize the quality of the remainder of their child’s life. Decisionmaking must consider the child’s cognitive abilities, the diagnosis, the perceived level of suffering, parental values, and the family’s understanding of the prognosis, the authors note.

They note that discussions about prognosis are often difficult but critical. Previous research “supports that patients desire prognostic information even when prognosis is uncertain and appreciate when their physicians disclose the presence of that uncertainty,” the authors note.

Also important is engaging in shared decisionmaking with patients and families. “This approach requires the physician to elicit a patient’s goals, make recommendations based on whether medical treatments are likely to achieve those goals, and work with patients and families to finalize a treatment plan,” according to the new guidance.
 

Ethical considerations

When treatments are physiologically futile, clinicians need to explain why interventions that may cause harm and have no benefit are not offered.

The authors cite cardiopulmonary resuscitation in the setting of cardiac arrest from irreversible herniation as an example of futility in the context of neurologic disease.

When life-prolonging care is no longer an option, clinicians have an obligation to shift the focus of care to preserving quality of life and comfort as much as possible, they add.

Hospices, which provide comfort-focused medical care as well as psychosocial and spiritual support, are reserved for patients believed to be in the last 6 months of their life if their disease follows the expected course.

The investigators also broached ethical considerations for individual neurologic conditions. Concerns for disorders of consciousness include misdiagnosis or inaccurate prognostication, and serial examinations are needed to re-evaluate levels of cognition, psychological state, decisionmaking capacity, and disease trajectory.

In patients with locked-in syndrome, a state of irreversible paralysis, often with respiratory and vocal paralysis, consciousness may range from a chronic minimally conscious state to intact cognition.

Without careful examination, patients with preserved consciousness may be mistaken as having a disorder of consciousness and risk their decisional capacity being ignored, the researchers note.

These patients may need assistance from speech pathologists to identify techniques to enhance communication, such as careful “yes/no” questioning, communication boards, or advanced eye-gaze technology, they add.
 

Stroke, dementia, Parkinson’s guidance

For stroke, the guidance suggests neurologists encourage patients with retained decisionmaking capacity to complete advance care planning given the risk of recurrent stroke and loss of capacity in the future.

For dementia, a proper and timely diagnosis can help patients and their families prepare for the consequences of cognitive dysfunction and loss of autonomy while respecting their identified values, the authors write.

They note that for Parkinson’s disease, which is marked by slow functional and cognitive decline, neurologists must aim to anticipate and treat symptoms, address psychosocial and spiritual distress and caregiver burden, and engage patients and families in advance care planning before onset of cognitive impairment.

For patients with amyotrophic lateral sclerosis (ALS) and related disorders, clinicians should aim to document goals and treatment preferences prior to extreme weakness and aphonia.

It is also important to anticipate patient preferences for future disability-specific decisions, such as those related to feeding tubes and mechanical ventilation, and to identify the patient’s minimal acceptable outcome from these life-sustaining interventions.

On the topic of withdrawal of treatment, the paper notes that competent patients have the right to refuse life-prolonging therapies, including artificial nutrition, hydration, mechanical ventilation, and antibiotics. If physicians have a moral objection to removing life-support systems, they are obligated to transfer the care of the patient to another physician, the authors add.

Once a decision is made to forgo life-sustaining treatment, physicians should minimize subsequent suffering. The investigators note most symptoms at the end of life can be managed without sedation.

In broaching the “gap” in neurology training programs, the statement referred to a survey of 49 neurology residency programs. Results showed that 42% of respondents reported being dissatisfied with their palliative care education.
 

Well-timed update

Kate T. Brizzi, MD, a Boston neurologist with experience in hospice and palliative care, said the updated position statement is “well-timed” as neuropalliative care has evolved dramatically over the last decade.

“In the last several years, I’ve witnessed a significant increase in trainee interest in the field, and there is growing recognition of how a palliative care approach can improve patient care and hopefully outcomes,” said Dr. Brizzi.

She praised the authors for doing “an excellent job” in highlighting the ethical challenges facing the neurology provider, particularly as it relates to prognostication in an uncertain setting.

Dr. Brizzi noted communication tools that help facilitate discussions around shared decisionmaking “have enhanced our ability to meet the palliative care needs of our patients and can be incorporated by any provider.”

However, she added that the paper only briefly comments on the role of the neurologist in “lawful physician-hastened death.”

“I anticipate that this will be an area of further discussion in the neurology and palliative care community in the future, as requests for hastened death are frequently encountered from patients with serious neurologic illness,” she said.

Dr. Brizzi also noted the importance of understanding the reasons behind the request – and addressing patient worries related to end-of-life care, which can frequently help alleviate distress.

There was no targeted funding for this paper. Coauthor Salvador Cruz-Flores, MD, department of neurology, Texas Tech University Center, El Paso, reported participation on member adjudication committees for clinical trials for Novo Nordisk, Sunovion, and Galapagos. The remaining authors have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

The American Academy of Neurology (AAN) has released new expert guidance on palliative care for patients with stroke, dementia, Parkinson’s disease, and other neurologic disorders.

Palliative care includes much more than hospice services, lead author of the new position statement Lynne P. Taylor, MD, University of Washington, Seattle, and a fellow of the AAN, said in a press release.

“Neurologists provide palliative care to people living with life-altering neurologic illnesses not just at the end of life but throughout the course of a disease, improving their lives with symptom control,” Dr. Taylor added.

The position paper, developed by a joint committee of the AAN, American Neurological Association, and Child Neurology Society, was published online March 8 in Neurology.
 

Guidance across the lifespan

The new paper, an update of previous position statements, includes palliative care guidance for different neurologic disorders across the lifespan. For example, neuropalliative care for neonates deserves “extra consideration,” because one-third of pediatric deaths occur during the neonatal period, most often in the neonatal intensive care unit, and after withdrawal of life-sustaining interventions, the authors note.

For older children, neuropalliative care consultation benefits families trying to maximize the quality of the remainder of their child’s life. Decisionmaking must consider the child’s cognitive abilities, the diagnosis, the perceived level of suffering, parental values, and the family’s understanding of the prognosis, the authors note.

They note that discussions about prognosis are often difficult but critical. Previous research “supports that patients desire prognostic information even when prognosis is uncertain and appreciate when their physicians disclose the presence of that uncertainty,” the authors note.

Also important is engaging in shared decisionmaking with patients and families. “This approach requires the physician to elicit a patient’s goals, make recommendations based on whether medical treatments are likely to achieve those goals, and work with patients and families to finalize a treatment plan,” according to the new guidance.
 

Ethical considerations

When treatments are physiologically futile, clinicians need to explain why interventions that may cause harm and have no benefit are not offered.

The authors cite cardiopulmonary resuscitation in the setting of cardiac arrest from irreversible herniation as an example of futility in the context of neurologic disease.

When life-prolonging care is no longer an option, clinicians have an obligation to shift the focus of care to preserving quality of life and comfort as much as possible, they add.

Hospices, which provide comfort-focused medical care as well as psychosocial and spiritual support, are reserved for patients believed to be in the last 6 months of their life if their disease follows the expected course.

The investigators also broached ethical considerations for individual neurologic conditions. Concerns for disorders of consciousness include misdiagnosis or inaccurate prognostication, and serial examinations are needed to re-evaluate levels of cognition, psychological state, decisionmaking capacity, and disease trajectory.

In patients with locked-in syndrome, a state of irreversible paralysis, often with respiratory and vocal paralysis, consciousness may range from a chronic minimally conscious state to intact cognition.

Without careful examination, patients with preserved consciousness may be mistaken as having a disorder of consciousness and risk their decisional capacity being ignored, the researchers note.

These patients may need assistance from speech pathologists to identify techniques to enhance communication, such as careful “yes/no” questioning, communication boards, or advanced eye-gaze technology, they add.
 

Stroke, dementia, Parkinson’s guidance

For stroke, the guidance suggests neurologists encourage patients with retained decisionmaking capacity to complete advance care planning given the risk of recurrent stroke and loss of capacity in the future.

For dementia, a proper and timely diagnosis can help patients and their families prepare for the consequences of cognitive dysfunction and loss of autonomy while respecting their identified values, the authors write.

They note that for Parkinson’s disease, which is marked by slow functional and cognitive decline, neurologists must aim to anticipate and treat symptoms, address psychosocial and spiritual distress and caregiver burden, and engage patients and families in advance care planning before onset of cognitive impairment.

For patients with amyotrophic lateral sclerosis (ALS) and related disorders, clinicians should aim to document goals and treatment preferences prior to extreme weakness and aphonia.

It is also important to anticipate patient preferences for future disability-specific decisions, such as those related to feeding tubes and mechanical ventilation, and to identify the patient’s minimal acceptable outcome from these life-sustaining interventions.

On the topic of withdrawal of treatment, the paper notes that competent patients have the right to refuse life-prolonging therapies, including artificial nutrition, hydration, mechanical ventilation, and antibiotics. If physicians have a moral objection to removing life-support systems, they are obligated to transfer the care of the patient to another physician, the authors add.

Once a decision is made to forgo life-sustaining treatment, physicians should minimize subsequent suffering. The investigators note most symptoms at the end of life can be managed without sedation.

In broaching the “gap” in neurology training programs, the statement referred to a survey of 49 neurology residency programs. Results showed that 42% of respondents reported being dissatisfied with their palliative care education.
 

Well-timed update

Kate T. Brizzi, MD, a Boston neurologist with experience in hospice and palliative care, said the updated position statement is “well-timed” as neuropalliative care has evolved dramatically over the last decade.

“In the last several years, I’ve witnessed a significant increase in trainee interest in the field, and there is growing recognition of how a palliative care approach can improve patient care and hopefully outcomes,” said Dr. Brizzi.

She praised the authors for doing “an excellent job” in highlighting the ethical challenges facing the neurology provider, particularly as it relates to prognostication in an uncertain setting.

Dr. Brizzi noted communication tools that help facilitate discussions around shared decisionmaking “have enhanced our ability to meet the palliative care needs of our patients and can be incorporated by any provider.”

However, she added that the paper only briefly comments on the role of the neurologist in “lawful physician-hastened death.”

“I anticipate that this will be an area of further discussion in the neurology and palliative care community in the future, as requests for hastened death are frequently encountered from patients with serious neurologic illness,” she said.

Dr. Brizzi also noted the importance of understanding the reasons behind the request – and addressing patient worries related to end-of-life care, which can frequently help alleviate distress.

There was no targeted funding for this paper. Coauthor Salvador Cruz-Flores, MD, department of neurology, Texas Tech University Center, El Paso, reported participation on member adjudication committees for clinical trials for Novo Nordisk, Sunovion, and Galapagos. The remaining authors have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.

The American Academy of Neurology (AAN) has released new expert guidance on palliative care for patients with stroke, dementia, Parkinson’s disease, and other neurologic disorders.

Palliative care includes much more than hospice services, lead author of the new position statement Lynne P. Taylor, MD, University of Washington, Seattle, and a fellow of the AAN, said in a press release.

“Neurologists provide palliative care to people living with life-altering neurologic illnesses not just at the end of life but throughout the course of a disease, improving their lives with symptom control,” Dr. Taylor added.

The position paper, developed by a joint committee of the AAN, American Neurological Association, and Child Neurology Society, was published online March 8 in Neurology.
 

Guidance across the lifespan

The new paper, an update of previous position statements, includes palliative care guidance for different neurologic disorders across the lifespan. For example, neuropalliative care for neonates deserves “extra consideration,” because one-third of pediatric deaths occur during the neonatal period, most often in the neonatal intensive care unit, and after withdrawal of life-sustaining interventions, the authors note.

For older children, neuropalliative care consultation benefits families trying to maximize the quality of the remainder of their child’s life. Decisionmaking must consider the child’s cognitive abilities, the diagnosis, the perceived level of suffering, parental values, and the family’s understanding of the prognosis, the authors note.

They note that discussions about prognosis are often difficult but critical. Previous research “supports that patients desire prognostic information even when prognosis is uncertain and appreciate when their physicians disclose the presence of that uncertainty,” the authors note.

Also important is engaging in shared decisionmaking with patients and families. “This approach requires the physician to elicit a patient’s goals, make recommendations based on whether medical treatments are likely to achieve those goals, and work with patients and families to finalize a treatment plan,” according to the new guidance.
 

Ethical considerations

When treatments are physiologically futile, clinicians need to explain why interventions that may cause harm and have no benefit are not offered.

The authors cite cardiopulmonary resuscitation in the setting of cardiac arrest from irreversible herniation as an example of futility in the context of neurologic disease.

When life-prolonging care is no longer an option, clinicians have an obligation to shift the focus of care to preserving quality of life and comfort as much as possible, they add.

Hospices, which provide comfort-focused medical care as well as psychosocial and spiritual support, are reserved for patients believed to be in the last 6 months of their life if their disease follows the expected course.

The investigators also broached ethical considerations for individual neurologic conditions. Concerns for disorders of consciousness include misdiagnosis or inaccurate prognostication, and serial examinations are needed to re-evaluate levels of cognition, psychological state, decisionmaking capacity, and disease trajectory.

In patients with locked-in syndrome, a state of irreversible paralysis, often with respiratory and vocal paralysis, consciousness may range from a chronic minimally conscious state to intact cognition.

Without careful examination, patients with preserved consciousness may be mistaken as having a disorder of consciousness and risk their decisional capacity being ignored, the researchers note.

These patients may need assistance from speech pathologists to identify techniques to enhance communication, such as careful “yes/no” questioning, communication boards, or advanced eye-gaze technology, they add.
 

Stroke, dementia, Parkinson’s guidance

For stroke, the guidance suggests neurologists encourage patients with retained decisionmaking capacity to complete advance care planning given the risk of recurrent stroke and loss of capacity in the future.

For dementia, a proper and timely diagnosis can help patients and their families prepare for the consequences of cognitive dysfunction and loss of autonomy while respecting their identified values, the authors write.

They note that for Parkinson’s disease, which is marked by slow functional and cognitive decline, neurologists must aim to anticipate and treat symptoms, address psychosocial and spiritual distress and caregiver burden, and engage patients and families in advance care planning before onset of cognitive impairment.

For patients with amyotrophic lateral sclerosis (ALS) and related disorders, clinicians should aim to document goals and treatment preferences prior to extreme weakness and aphonia.

It is also important to anticipate patient preferences for future disability-specific decisions, such as those related to feeding tubes and mechanical ventilation, and to identify the patient’s minimal acceptable outcome from these life-sustaining interventions.

On the topic of withdrawal of treatment, the paper notes that competent patients have the right to refuse life-prolonging therapies, including artificial nutrition, hydration, mechanical ventilation, and antibiotics. If physicians have a moral objection to removing life-support systems, they are obligated to transfer the care of the patient to another physician, the authors add.

Once a decision is made to forgo life-sustaining treatment, physicians should minimize subsequent suffering. The investigators note most symptoms at the end of life can be managed without sedation.

In broaching the “gap” in neurology training programs, the statement referred to a survey of 49 neurology residency programs. Results showed that 42% of respondents reported being dissatisfied with their palliative care education.
 

Well-timed update

Kate T. Brizzi, MD, a Boston neurologist with experience in hospice and palliative care, said the updated position statement is “well-timed” as neuropalliative care has evolved dramatically over the last decade.

“In the last several years, I’ve witnessed a significant increase in trainee interest in the field, and there is growing recognition of how a palliative care approach can improve patient care and hopefully outcomes,” said Dr. Brizzi.

She praised the authors for doing “an excellent job” in highlighting the ethical challenges facing the neurology provider, particularly as it relates to prognostication in an uncertain setting.

Dr. Brizzi noted communication tools that help facilitate discussions around shared decisionmaking “have enhanced our ability to meet the palliative care needs of our patients and can be incorporated by any provider.”

However, she added that the paper only briefly comments on the role of the neurologist in “lawful physician-hastened death.”

“I anticipate that this will be an area of further discussion in the neurology and palliative care community in the future, as requests for hastened death are frequently encountered from patients with serious neurologic illness,” she said.

Dr. Brizzi also noted the importance of understanding the reasons behind the request – and addressing patient worries related to end-of-life care, which can frequently help alleviate distress.

There was no targeted funding for this paper. Coauthor Salvador Cruz-Flores, MD, department of neurology, Texas Tech University Center, El Paso, reported participation on member adjudication committees for clinical trials for Novo Nordisk, Sunovion, and Galapagos. The remaining authors have disclosed no relevant financial relationships.

A version of this article first appeared on Medscape.com.