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Sugar Substitutes Satisfy Appetite, Blunt Insulin Response
TOPLINE:
but decrease post-meal insulin and glucose levels in adults with overweight or obesity.
METHODOLOGY:
- In 2023, the World Health Organization issued a conditional recommendation that S&SE should not be used for weight control, apparently due to a lack of evidence for a clear benefit and weak evidence linking S&SE intake with excess weight and poorer health outcomes.
- This randomized crossover trial, conducted in England and France between 2021 and 2022, evaluated the acute (1 day) and repeated (daily for 2 weeks) effects of S&SEs vs sucrose in solid food on appetite and endocrine responses in adults with overweight or obesity.
- Overall, 53 adults (33 women, 20 men; aged 18-60 years) with overweight or obesity consumed biscuits with fruit filling containing either sucrose or reformulated with the S&SEs StRebM or neotame, daily for three 2-week intervention periods separated by a washout period of 14-21 days.
- Participants were required to fast for 12 hours before attending a laboratory session at the beginning (day 1) and end (day 14) of each consumption period.
- The primary endpoint was the composite appetite score, while secondary endpoints included food preferences, postprandial glucose and insulin response, and other satiety-related peptides, such as ghrelin, glucagon-like peptide 1, and pancreatic polypeptide.
TAKEAWAY:
- The composite appetite scores were comparable between the sucrose, StRebM, and neotame groups, with lower appetite suppression observed on day 14 than on day 1 for all three formulations.
- Neotame (P < .001) and StRebM (P < .001) lowered postprandial insulin levels compared with sucrose, while glucose levels saw a decline only with StRebM (and not with neotame) compared with sucrose (P < .05).
- The S&SEs had no effect on satiety levels, as any acute or repeated exposures to StRebM or neotame vs sucrose did not affect the ghrelin and glucagon-like peptide-1 responses.
- Gastrointestinal issues were more frequently reported in the neotame and StRebM groups than in the sucrose group.
IN PRACTICE:
“There is no detrimental impact of replacing sugar with S&SE in these endpoints,” the authors wrote. “Additionally, glucose and insulin responses were blunted after acute and repeated consumption of S&SE-reformulated biscuits, which may confer a benefit for blood glucose control, for example, in individuals at risk of developing type 2 diabetes.”
SOURCE:
This study was led by Catherine Gibbons, School of Psychology, Faculty of Medicine and Health, University of Leeds, England. It was published online in eBioMedicine.
LIMITATIONS:
The reformulated products required the addition of polyol bulking agents (8% maltitol and 8% sorbitol) to match the biscuits in sensory qualities as closely as possible. Gastrointestinal symptoms (initial bloating and flatulence) in the neotame and StRebM formulations may be due to the polyols, classed as low-digestible carbohydrates.
DISCLOSURES:
This study received funding from a European Union Horizon 2020 program, SWEET (Sweeteners and sweetness enhancers: Impact on health, obesity, safety, and sustainability). The authors reported receiving funding and honoraria from the food and beverage industry and trade groups from various entities.
A version of this article appeared on Medscape.com.
TOPLINE:
but decrease post-meal insulin and glucose levels in adults with overweight or obesity.
METHODOLOGY:
- In 2023, the World Health Organization issued a conditional recommendation that S&SE should not be used for weight control, apparently due to a lack of evidence for a clear benefit and weak evidence linking S&SE intake with excess weight and poorer health outcomes.
- This randomized crossover trial, conducted in England and France between 2021 and 2022, evaluated the acute (1 day) and repeated (daily for 2 weeks) effects of S&SEs vs sucrose in solid food on appetite and endocrine responses in adults with overweight or obesity.
- Overall, 53 adults (33 women, 20 men; aged 18-60 years) with overweight or obesity consumed biscuits with fruit filling containing either sucrose or reformulated with the S&SEs StRebM or neotame, daily for three 2-week intervention periods separated by a washout period of 14-21 days.
- Participants were required to fast for 12 hours before attending a laboratory session at the beginning (day 1) and end (day 14) of each consumption period.
- The primary endpoint was the composite appetite score, while secondary endpoints included food preferences, postprandial glucose and insulin response, and other satiety-related peptides, such as ghrelin, glucagon-like peptide 1, and pancreatic polypeptide.
TAKEAWAY:
- The composite appetite scores were comparable between the sucrose, StRebM, and neotame groups, with lower appetite suppression observed on day 14 than on day 1 for all three formulations.
- Neotame (P < .001) and StRebM (P < .001) lowered postprandial insulin levels compared with sucrose, while glucose levels saw a decline only with StRebM (and not with neotame) compared with sucrose (P < .05).
- The S&SEs had no effect on satiety levels, as any acute or repeated exposures to StRebM or neotame vs sucrose did not affect the ghrelin and glucagon-like peptide-1 responses.
- Gastrointestinal issues were more frequently reported in the neotame and StRebM groups than in the sucrose group.
IN PRACTICE:
“There is no detrimental impact of replacing sugar with S&SE in these endpoints,” the authors wrote. “Additionally, glucose and insulin responses were blunted after acute and repeated consumption of S&SE-reformulated biscuits, which may confer a benefit for blood glucose control, for example, in individuals at risk of developing type 2 diabetes.”
SOURCE:
This study was led by Catherine Gibbons, School of Psychology, Faculty of Medicine and Health, University of Leeds, England. It was published online in eBioMedicine.
LIMITATIONS:
The reformulated products required the addition of polyol bulking agents (8% maltitol and 8% sorbitol) to match the biscuits in sensory qualities as closely as possible. Gastrointestinal symptoms (initial bloating and flatulence) in the neotame and StRebM formulations may be due to the polyols, classed as low-digestible carbohydrates.
DISCLOSURES:
This study received funding from a European Union Horizon 2020 program, SWEET (Sweeteners and sweetness enhancers: Impact on health, obesity, safety, and sustainability). The authors reported receiving funding and honoraria from the food and beverage industry and trade groups from various entities.
A version of this article appeared on Medscape.com.
TOPLINE:
but decrease post-meal insulin and glucose levels in adults with overweight or obesity.
METHODOLOGY:
- In 2023, the World Health Organization issued a conditional recommendation that S&SE should not be used for weight control, apparently due to a lack of evidence for a clear benefit and weak evidence linking S&SE intake with excess weight and poorer health outcomes.
- This randomized crossover trial, conducted in England and France between 2021 and 2022, evaluated the acute (1 day) and repeated (daily for 2 weeks) effects of S&SEs vs sucrose in solid food on appetite and endocrine responses in adults with overweight or obesity.
- Overall, 53 adults (33 women, 20 men; aged 18-60 years) with overweight or obesity consumed biscuits with fruit filling containing either sucrose or reformulated with the S&SEs StRebM or neotame, daily for three 2-week intervention periods separated by a washout period of 14-21 days.
- Participants were required to fast for 12 hours before attending a laboratory session at the beginning (day 1) and end (day 14) of each consumption period.
- The primary endpoint was the composite appetite score, while secondary endpoints included food preferences, postprandial glucose and insulin response, and other satiety-related peptides, such as ghrelin, glucagon-like peptide 1, and pancreatic polypeptide.
TAKEAWAY:
- The composite appetite scores were comparable between the sucrose, StRebM, and neotame groups, with lower appetite suppression observed on day 14 than on day 1 for all three formulations.
- Neotame (P < .001) and StRebM (P < .001) lowered postprandial insulin levels compared with sucrose, while glucose levels saw a decline only with StRebM (and not with neotame) compared with sucrose (P < .05).
- The S&SEs had no effect on satiety levels, as any acute or repeated exposures to StRebM or neotame vs sucrose did not affect the ghrelin and glucagon-like peptide-1 responses.
- Gastrointestinal issues were more frequently reported in the neotame and StRebM groups than in the sucrose group.
IN PRACTICE:
“There is no detrimental impact of replacing sugar with S&SE in these endpoints,” the authors wrote. “Additionally, glucose and insulin responses were blunted after acute and repeated consumption of S&SE-reformulated biscuits, which may confer a benefit for blood glucose control, for example, in individuals at risk of developing type 2 diabetes.”
SOURCE:
This study was led by Catherine Gibbons, School of Psychology, Faculty of Medicine and Health, University of Leeds, England. It was published online in eBioMedicine.
LIMITATIONS:
The reformulated products required the addition of polyol bulking agents (8% maltitol and 8% sorbitol) to match the biscuits in sensory qualities as closely as possible. Gastrointestinal symptoms (initial bloating and flatulence) in the neotame and StRebM formulations may be due to the polyols, classed as low-digestible carbohydrates.
DISCLOSURES:
This study received funding from a European Union Horizon 2020 program, SWEET (Sweeteners and sweetness enhancers: Impact on health, obesity, safety, and sustainability). The authors reported receiving funding and honoraria from the food and beverage industry and trade groups from various entities.
A version of this article appeared on Medscape.com.
GLP-1 Receptor Agonists Don’t Raise Thyroid Cancer Risk
TOPLINE:
METHODOLOGY:
- A cohort study using data from nationwide registers in Denmark, Norway, and Sweden between 2007 and 2021 included 145,410 patients who initiated GLP-1 RAs and 291,667 propensity score-matched patients initiating dipeptidyl peptidase 4 (DPP4) inhibitors as active comparators.
- Additional analysis included 111,744 who initiated GLP-1 RAs and 148,179 patients initiating sodium-glucose cotransporter 2 (SGLT2) inhibitors.
- Overall, mean follow-up time was 3.9 years, with 25% followed for more than 6 years.
TAKEAWAY:
- The most common individual GLP-1 RAs were liraglutide (57.3%) and semaglutide (32.9%).
- During follow-up, there were 76 incident thyroid cancer cases among GLP-1 RA users and 184 cases in DPP4 inhibitor users, giving incidence rates per 10,000 of 1.33 and 1.46, respectively, a nonsignificant difference (hazard ratio [HR], 0.93; 95% CI, 0.66-1.31).
- Papillary thyroid cancer was the most common thyroid cancer subtype, followed by follicular and medullary, with no significant increases in risk with GLP-1 RAs by cancer type, although the numbers were small.
- In the SGLT2 inhibitor comparison, there was also no significantly increased thyroid cancer risk for GLP-1 RAs (HR, 1.16; 95% CI, 0.65-2.05).
IN PRACTICE:
“Given the upper limit of the confidence interval, the findings are incompatible with more than a 31% increased relative risk of thyroid cancer. In absolute terms, this translates to no more than 0.36 excess cases per 10 000 person-years, a figure that should be interpreted against the background incidence of 1.46 per 10,000 person-years among the comparator group in the study populations.”
SOURCE:
This study was conducted by Björn Pasternak, MD, PhD, of the Karolinska Institutet, Stockholm, and colleagues. It was published online on April 10, 2024, in The BMJ.
LIMITATIONS:
Relatively short follow-up for cancer risk. Risk by individual GLP-1 RA not analyzed. Small event numbers. Observational, with potential for residual confounding and time-release bias.
DISCLOSURES:
The study was supported by grants from the Swedish Cancer Society and the Swedish Research Council. Dr. Pasternak was supported by a consolidator investigator grant from Karolinska Institutet. Some of the coauthors had industry disclosures.
A version of this article appeared on Medscape.com.
TOPLINE:
METHODOLOGY:
- A cohort study using data from nationwide registers in Denmark, Norway, and Sweden between 2007 and 2021 included 145,410 patients who initiated GLP-1 RAs and 291,667 propensity score-matched patients initiating dipeptidyl peptidase 4 (DPP4) inhibitors as active comparators.
- Additional analysis included 111,744 who initiated GLP-1 RAs and 148,179 patients initiating sodium-glucose cotransporter 2 (SGLT2) inhibitors.
- Overall, mean follow-up time was 3.9 years, with 25% followed for more than 6 years.
TAKEAWAY:
- The most common individual GLP-1 RAs were liraglutide (57.3%) and semaglutide (32.9%).
- During follow-up, there were 76 incident thyroid cancer cases among GLP-1 RA users and 184 cases in DPP4 inhibitor users, giving incidence rates per 10,000 of 1.33 and 1.46, respectively, a nonsignificant difference (hazard ratio [HR], 0.93; 95% CI, 0.66-1.31).
- Papillary thyroid cancer was the most common thyroid cancer subtype, followed by follicular and medullary, with no significant increases in risk with GLP-1 RAs by cancer type, although the numbers were small.
- In the SGLT2 inhibitor comparison, there was also no significantly increased thyroid cancer risk for GLP-1 RAs (HR, 1.16; 95% CI, 0.65-2.05).
IN PRACTICE:
“Given the upper limit of the confidence interval, the findings are incompatible with more than a 31% increased relative risk of thyroid cancer. In absolute terms, this translates to no more than 0.36 excess cases per 10 000 person-years, a figure that should be interpreted against the background incidence of 1.46 per 10,000 person-years among the comparator group in the study populations.”
SOURCE:
This study was conducted by Björn Pasternak, MD, PhD, of the Karolinska Institutet, Stockholm, and colleagues. It was published online on April 10, 2024, in The BMJ.
LIMITATIONS:
Relatively short follow-up for cancer risk. Risk by individual GLP-1 RA not analyzed. Small event numbers. Observational, with potential for residual confounding and time-release bias.
DISCLOSURES:
The study was supported by grants from the Swedish Cancer Society and the Swedish Research Council. Dr. Pasternak was supported by a consolidator investigator grant from Karolinska Institutet. Some of the coauthors had industry disclosures.
A version of this article appeared on Medscape.com.
TOPLINE:
METHODOLOGY:
- A cohort study using data from nationwide registers in Denmark, Norway, and Sweden between 2007 and 2021 included 145,410 patients who initiated GLP-1 RAs and 291,667 propensity score-matched patients initiating dipeptidyl peptidase 4 (DPP4) inhibitors as active comparators.
- Additional analysis included 111,744 who initiated GLP-1 RAs and 148,179 patients initiating sodium-glucose cotransporter 2 (SGLT2) inhibitors.
- Overall, mean follow-up time was 3.9 years, with 25% followed for more than 6 years.
TAKEAWAY:
- The most common individual GLP-1 RAs were liraglutide (57.3%) and semaglutide (32.9%).
- During follow-up, there were 76 incident thyroid cancer cases among GLP-1 RA users and 184 cases in DPP4 inhibitor users, giving incidence rates per 10,000 of 1.33 and 1.46, respectively, a nonsignificant difference (hazard ratio [HR], 0.93; 95% CI, 0.66-1.31).
- Papillary thyroid cancer was the most common thyroid cancer subtype, followed by follicular and medullary, with no significant increases in risk with GLP-1 RAs by cancer type, although the numbers were small.
- In the SGLT2 inhibitor comparison, there was also no significantly increased thyroid cancer risk for GLP-1 RAs (HR, 1.16; 95% CI, 0.65-2.05).
IN PRACTICE:
“Given the upper limit of the confidence interval, the findings are incompatible with more than a 31% increased relative risk of thyroid cancer. In absolute terms, this translates to no more than 0.36 excess cases per 10 000 person-years, a figure that should be interpreted against the background incidence of 1.46 per 10,000 person-years among the comparator group in the study populations.”
SOURCE:
This study was conducted by Björn Pasternak, MD, PhD, of the Karolinska Institutet, Stockholm, and colleagues. It was published online on April 10, 2024, in The BMJ.
LIMITATIONS:
Relatively short follow-up for cancer risk. Risk by individual GLP-1 RA not analyzed. Small event numbers. Observational, with potential for residual confounding and time-release bias.
DISCLOSURES:
The study was supported by grants from the Swedish Cancer Society and the Swedish Research Council. Dr. Pasternak was supported by a consolidator investigator grant from Karolinska Institutet. Some of the coauthors had industry disclosures.
A version of this article appeared on Medscape.com.
Study Highlights Some Semaglutide-Associated Skin Effects
TOPLINE:
.
METHODOLOGY:
- The Food and Drug Administration’s has not received reports of semaglutide-related safety events, and few studies have characterized skin findings associated with oral or subcutaneous semaglutide, a glucagon-like peptide 1 agonist used to treat obesity and type 2 diabetes.
- In this scoping review, researchers included 22 articles (15 clinical trials, six case reports, and one retrospective cohort study), published through January 2024, of patients receiving either semaglutide or a placebo or comparator, which included reports of semaglutide-associated adverse dermatologic events in 255 participants.
TAKEAWAY:
- Patients who received 50 mg oral semaglutide weekly reported a higher incidence of altered skin sensations, such as dysesthesia (1.8% vs 0%), hyperesthesia (1.2% vs 0%), skin pain (2.4% vs 0%), paresthesia (2.7% vs 0%), and sensitive skin (2.7% vs 0%), than those receiving placebo or comparator.
- Reports of alopecia (6.9% vs 0.3%) were higher in patients who received 50 mg oral semaglutide weekly than in those on placebo, but only 0.2% of patients on 2.4 mg of subcutaneous semaglutide reported alopecia vs 0.5% of those on placebo.
- Unspecified dermatologic reactions (4.1% vs 1.5%) were reported in more patients on subcutaneous semaglutide than those on a placebo or comparator. Several case reports described isolated cases of severe skin-related adverse effects, such as bullous pemphigoid, eosinophilic fasciitis, and leukocytoclastic vasculitis.
- On the contrary, injection site reactions (3.5% vs 6.7%) were less common in patients on subcutaneous semaglutide compared with in those on a placebo or comparator.
IN PRACTICE:
“Variations in dosage and administration routes could influence the types and severity of skin findings, underscoring the need for additional research,” the authors wrote.
SOURCE:
Megan M. Tran, BS, from the Warren Alpert Medical School, Brown University, Providence, Rhode Island, led this study, which was published online in the Journal of the American Academy of Dermatology.
LIMITATIONS:
This study could not adjust for confounding factors and could not establish a direct causal association between semaglutide and the adverse reactions reported.
DISCLOSURES:
This study did not report any funding sources. The authors declared no conflicts of interest.
A version of this article appeared on Medscape.com.
TOPLINE:
.
METHODOLOGY:
- The Food and Drug Administration’s has not received reports of semaglutide-related safety events, and few studies have characterized skin findings associated with oral or subcutaneous semaglutide, a glucagon-like peptide 1 agonist used to treat obesity and type 2 diabetes.
- In this scoping review, researchers included 22 articles (15 clinical trials, six case reports, and one retrospective cohort study), published through January 2024, of patients receiving either semaglutide or a placebo or comparator, which included reports of semaglutide-associated adverse dermatologic events in 255 participants.
TAKEAWAY:
- Patients who received 50 mg oral semaglutide weekly reported a higher incidence of altered skin sensations, such as dysesthesia (1.8% vs 0%), hyperesthesia (1.2% vs 0%), skin pain (2.4% vs 0%), paresthesia (2.7% vs 0%), and sensitive skin (2.7% vs 0%), than those receiving placebo or comparator.
- Reports of alopecia (6.9% vs 0.3%) were higher in patients who received 50 mg oral semaglutide weekly than in those on placebo, but only 0.2% of patients on 2.4 mg of subcutaneous semaglutide reported alopecia vs 0.5% of those on placebo.
- Unspecified dermatologic reactions (4.1% vs 1.5%) were reported in more patients on subcutaneous semaglutide than those on a placebo or comparator. Several case reports described isolated cases of severe skin-related adverse effects, such as bullous pemphigoid, eosinophilic fasciitis, and leukocytoclastic vasculitis.
- On the contrary, injection site reactions (3.5% vs 6.7%) were less common in patients on subcutaneous semaglutide compared with in those on a placebo or comparator.
IN PRACTICE:
“Variations in dosage and administration routes could influence the types and severity of skin findings, underscoring the need for additional research,” the authors wrote.
SOURCE:
Megan M. Tran, BS, from the Warren Alpert Medical School, Brown University, Providence, Rhode Island, led this study, which was published online in the Journal of the American Academy of Dermatology.
LIMITATIONS:
This study could not adjust for confounding factors and could not establish a direct causal association between semaglutide and the adverse reactions reported.
DISCLOSURES:
This study did not report any funding sources. The authors declared no conflicts of interest.
A version of this article appeared on Medscape.com.
TOPLINE:
.
METHODOLOGY:
- The Food and Drug Administration’s has not received reports of semaglutide-related safety events, and few studies have characterized skin findings associated with oral or subcutaneous semaglutide, a glucagon-like peptide 1 agonist used to treat obesity and type 2 diabetes.
- In this scoping review, researchers included 22 articles (15 clinical trials, six case reports, and one retrospective cohort study), published through January 2024, of patients receiving either semaglutide or a placebo or comparator, which included reports of semaglutide-associated adverse dermatologic events in 255 participants.
TAKEAWAY:
- Patients who received 50 mg oral semaglutide weekly reported a higher incidence of altered skin sensations, such as dysesthesia (1.8% vs 0%), hyperesthesia (1.2% vs 0%), skin pain (2.4% vs 0%), paresthesia (2.7% vs 0%), and sensitive skin (2.7% vs 0%), than those receiving placebo or comparator.
- Reports of alopecia (6.9% vs 0.3%) were higher in patients who received 50 mg oral semaglutide weekly than in those on placebo, but only 0.2% of patients on 2.4 mg of subcutaneous semaglutide reported alopecia vs 0.5% of those on placebo.
- Unspecified dermatologic reactions (4.1% vs 1.5%) were reported in more patients on subcutaneous semaglutide than those on a placebo or comparator. Several case reports described isolated cases of severe skin-related adverse effects, such as bullous pemphigoid, eosinophilic fasciitis, and leukocytoclastic vasculitis.
- On the contrary, injection site reactions (3.5% vs 6.7%) were less common in patients on subcutaneous semaglutide compared with in those on a placebo or comparator.
IN PRACTICE:
“Variations in dosage and administration routes could influence the types and severity of skin findings, underscoring the need for additional research,” the authors wrote.
SOURCE:
Megan M. Tran, BS, from the Warren Alpert Medical School, Brown University, Providence, Rhode Island, led this study, which was published online in the Journal of the American Academy of Dermatology.
LIMITATIONS:
This study could not adjust for confounding factors and could not establish a direct causal association between semaglutide and the adverse reactions reported.
DISCLOSURES:
This study did not report any funding sources. The authors declared no conflicts of interest.
A version of this article appeared on Medscape.com.
Is It Possible to Reverse Osteoporosis?
Fractures, particularly hip and spine fractures, are a major cause of mortality and morbidity among older individuals. The term “osteoporosis” indicates increased porosity of bones resulting in low bone density; increased bone fragility; and an increased risk for fracture, often with minimal trauma.
During the adolescent years, bone accrues at a rapid rate, and optimal bone accrual during this time is essential to attain optimal peak bone mass, typically achieved in the third decade of life. Bone mass then stays stable until the 40s-50s, after which it starts to decline. One’s peak bone mass sets the stage for both immediate and future bone health. Individuals with lower peak bone mass tend to have less optimal bone health throughout their lives, and this becomes particularly problematic in older men and in the postmenopausal years for women.
One’s genes have a major impact on bone density and are currently not modifiable.
Modifiable factors include mechanical loading of bones through exercise activity, maintaining a normal body weight, and ensuring adequate intake of micronutrients (including calcium and vitamin D) and macronutrients. Medications such as glucocorticoids that have deleterious effects on bones should be limited as far as possible. Endocrine, gastrointestinal, renal, and rheumatologic conditions and others, such as cancer, which are known to be associated with reduced bone density and increased fracture risk, should be managed appropriately.
A deficiency of the gonadal hormones (estrogen and testosterone) and high blood concentrations of cortisol are particularly deleterious to bone. Hormone replacement therapy in those with gonadal hormone deficiency and strategies to reduce cortisol levels in those with hypercortisolemia are essential to prevent osteoporosis and also improve bone density over time. The same applies to management of conditions such as anorexia nervosa, relative energy deficiency in sports, inflammatory bowel disease, celiac disease, cystic fibrosis, chronic kidney disease, and chronic arthritis.
Once osteoporosis has developed, depending on the cause, these strategies may not be sufficient to completely reverse the condition, and pharmacologic therapy may be necessary to improve bone density and reduce fracture risk. This is particularly an issue with postmenopausal women and older men. In these individuals, medications that increase bone formation or reduce bone loss may be necessary.
Medications that reduce bone loss include bisphosphonates and denosumab; these are also called “antiresorptive medications” because they reduce bone resorption by cells called osteoclasts. Bisphosphonates include alendronate, risedronate, ibandronate, pamidronate, and zoledronic acid, and these medications have direct effects on osteoclasts, reducing their activity. Some bisphosphonates, such as alendronate and risedronate, are taken orally (daily, weekly, or monthly, depending on the medication and its strength), whereas others, such as pamidronate and zoledronic acid, are administered intravenously: every 3-4 months for pamidronate and every 6-12 months for zoledronic acid. Ibandronate is available both orally and intravenously.
Denosumab is a medication that inhibits the action of receptor activator of nuclear factor-kappa ligand 1 (RANKL), which otherwise increases osteoclast activity. It is administered as a subcutaneous injection every 6 months to treat osteoporosis. One concern with denosumab is a rapid increase in bone loss after its discontinuation.
Medications that increase bone formation are called bone anabolics and include teriparatide, abaloparatide, and romosozumab. Teriparatide is a synthetic form of parathyroid hormone (recombinant PTH1-34) administered daily for up to 2 years. Abaloparatide is a synthetic analog of parathyroid hormone–related peptide (PTHrP), which is also administered daily as a subcutaneous injection. Romosozumab inhibits sclerostin (a substance that otherwise reduces bone formation and increases bone resorption) and is administered as a subcutaneous injection once a month. Effects of these medications tend to be lost after they are discontinued.
In 2019, the Endocrine Society published guidelines for managing postmenopausal osteoporosis. The guidelines recommend lifestyle modifications, including attention to diet, calcium and vitamin D supplements, and weight-bearing exercise for all postmenopausal women. They also recommend assessing fracture risk using country-specific existing models.
Guidelines vary depending on whether fracture risk is low, moderate, or high. Patients at low risk are followed and reassessed every 2-4 years for fracture risk. Those at moderate risk may be followed similarly or prescribed bisphosphonates. Those at high risk are prescribed an antiresorptive, such as a bisphosphonate or denosumab, or a bone anabolic, such as teriparatide or abaloparatide (for up to 2 years) or romosozumab (for a year), with calcium and vitamin D and are reassessed at defined intervals for fracture risk; subsequent management then depends on the assessed fracture risk.
People who are on a bone anabolic should typically follow this with an antiresorptive medication to maintain the gains achieved with the former after that medication is discontinued. Patients who discontinue denosumab should be switched to bisphosphonates to prevent the increase in bone loss that typically occurs.
In postmenopausal women who are intolerant to or inappropriate for use of these medications, guidelines vary depending on age (younger or older than 60 years) and presence or absence of vasomotor symptoms (such as hot flashes). Options could include the use of calcium and vitamin D supplements; hormone replacement therapy with estrogen with or without a progestin; or selective estrogen receptor modulators (such as raloxifene or bazedoxifene), tibolone, or calcitonin.
It’s important to recognize that all pharmacologic therapy carries the risk for adverse events, and it’s essential to take the necessary steps to prevent, monitor for, and manage any adverse effects that may develop.
Managing osteoporosis in older men could include the use of bone anabolics and/or antiresorptives. In younger individuals, use of pharmacologic therapy is less common but sometimes necessary, particularly when bone density is very low and associated with a problematic fracture history — for example, in those with genetic conditions such as osteogenesis imperfecta. Furthermore, the occurrence of vertebral compression fractures often requires bisphosphonate treatment regardless of bone density, particularly in patients on chronic glucocorticoid therapy.
Preventing osteoporosis is best managed by paying attention to lifestyle; optimizing nutrition and calcium and vitamin D intake; and managing conditions and limiting the use of medications that reduce bone density.
However, in certain patients, these measures are not enough, and pharmacologic therapy with bone anabolics or antiresorptives may be necessary to improve bone density and reduce fracture risk.
Dr. Misra, of the University of Virginia and UVA Health Children’s Hospital, Charlottesville, disclosed ties with AbbVie, Sanofi, and Ipsen.
A version of this article appeared on Medscape.com.
Fractures, particularly hip and spine fractures, are a major cause of mortality and morbidity among older individuals. The term “osteoporosis” indicates increased porosity of bones resulting in low bone density; increased bone fragility; and an increased risk for fracture, often with minimal trauma.
During the adolescent years, bone accrues at a rapid rate, and optimal bone accrual during this time is essential to attain optimal peak bone mass, typically achieved in the third decade of life. Bone mass then stays stable until the 40s-50s, after which it starts to decline. One’s peak bone mass sets the stage for both immediate and future bone health. Individuals with lower peak bone mass tend to have less optimal bone health throughout their lives, and this becomes particularly problematic in older men and in the postmenopausal years for women.
One’s genes have a major impact on bone density and are currently not modifiable.
Modifiable factors include mechanical loading of bones through exercise activity, maintaining a normal body weight, and ensuring adequate intake of micronutrients (including calcium and vitamin D) and macronutrients. Medications such as glucocorticoids that have deleterious effects on bones should be limited as far as possible. Endocrine, gastrointestinal, renal, and rheumatologic conditions and others, such as cancer, which are known to be associated with reduced bone density and increased fracture risk, should be managed appropriately.
A deficiency of the gonadal hormones (estrogen and testosterone) and high blood concentrations of cortisol are particularly deleterious to bone. Hormone replacement therapy in those with gonadal hormone deficiency and strategies to reduce cortisol levels in those with hypercortisolemia are essential to prevent osteoporosis and also improve bone density over time. The same applies to management of conditions such as anorexia nervosa, relative energy deficiency in sports, inflammatory bowel disease, celiac disease, cystic fibrosis, chronic kidney disease, and chronic arthritis.
Once osteoporosis has developed, depending on the cause, these strategies may not be sufficient to completely reverse the condition, and pharmacologic therapy may be necessary to improve bone density and reduce fracture risk. This is particularly an issue with postmenopausal women and older men. In these individuals, medications that increase bone formation or reduce bone loss may be necessary.
Medications that reduce bone loss include bisphosphonates and denosumab; these are also called “antiresorptive medications” because they reduce bone resorption by cells called osteoclasts. Bisphosphonates include alendronate, risedronate, ibandronate, pamidronate, and zoledronic acid, and these medications have direct effects on osteoclasts, reducing their activity. Some bisphosphonates, such as alendronate and risedronate, are taken orally (daily, weekly, or monthly, depending on the medication and its strength), whereas others, such as pamidronate and zoledronic acid, are administered intravenously: every 3-4 months for pamidronate and every 6-12 months for zoledronic acid. Ibandronate is available both orally and intravenously.
Denosumab is a medication that inhibits the action of receptor activator of nuclear factor-kappa ligand 1 (RANKL), which otherwise increases osteoclast activity. It is administered as a subcutaneous injection every 6 months to treat osteoporosis. One concern with denosumab is a rapid increase in bone loss after its discontinuation.
Medications that increase bone formation are called bone anabolics and include teriparatide, abaloparatide, and romosozumab. Teriparatide is a synthetic form of parathyroid hormone (recombinant PTH1-34) administered daily for up to 2 years. Abaloparatide is a synthetic analog of parathyroid hormone–related peptide (PTHrP), which is also administered daily as a subcutaneous injection. Romosozumab inhibits sclerostin (a substance that otherwise reduces bone formation and increases bone resorption) and is administered as a subcutaneous injection once a month. Effects of these medications tend to be lost after they are discontinued.
In 2019, the Endocrine Society published guidelines for managing postmenopausal osteoporosis. The guidelines recommend lifestyle modifications, including attention to diet, calcium and vitamin D supplements, and weight-bearing exercise for all postmenopausal women. They also recommend assessing fracture risk using country-specific existing models.
Guidelines vary depending on whether fracture risk is low, moderate, or high. Patients at low risk are followed and reassessed every 2-4 years for fracture risk. Those at moderate risk may be followed similarly or prescribed bisphosphonates. Those at high risk are prescribed an antiresorptive, such as a bisphosphonate or denosumab, or a bone anabolic, such as teriparatide or abaloparatide (for up to 2 years) or romosozumab (for a year), with calcium and vitamin D and are reassessed at defined intervals for fracture risk; subsequent management then depends on the assessed fracture risk.
People who are on a bone anabolic should typically follow this with an antiresorptive medication to maintain the gains achieved with the former after that medication is discontinued. Patients who discontinue denosumab should be switched to bisphosphonates to prevent the increase in bone loss that typically occurs.
In postmenopausal women who are intolerant to or inappropriate for use of these medications, guidelines vary depending on age (younger or older than 60 years) and presence or absence of vasomotor symptoms (such as hot flashes). Options could include the use of calcium and vitamin D supplements; hormone replacement therapy with estrogen with or without a progestin; or selective estrogen receptor modulators (such as raloxifene or bazedoxifene), tibolone, or calcitonin.
It’s important to recognize that all pharmacologic therapy carries the risk for adverse events, and it’s essential to take the necessary steps to prevent, monitor for, and manage any adverse effects that may develop.
Managing osteoporosis in older men could include the use of bone anabolics and/or antiresorptives. In younger individuals, use of pharmacologic therapy is less common but sometimes necessary, particularly when bone density is very low and associated with a problematic fracture history — for example, in those with genetic conditions such as osteogenesis imperfecta. Furthermore, the occurrence of vertebral compression fractures often requires bisphosphonate treatment regardless of bone density, particularly in patients on chronic glucocorticoid therapy.
Preventing osteoporosis is best managed by paying attention to lifestyle; optimizing nutrition and calcium and vitamin D intake; and managing conditions and limiting the use of medications that reduce bone density.
However, in certain patients, these measures are not enough, and pharmacologic therapy with bone anabolics or antiresorptives may be necessary to improve bone density and reduce fracture risk.
Dr. Misra, of the University of Virginia and UVA Health Children’s Hospital, Charlottesville, disclosed ties with AbbVie, Sanofi, and Ipsen.
A version of this article appeared on Medscape.com.
Fractures, particularly hip and spine fractures, are a major cause of mortality and morbidity among older individuals. The term “osteoporosis” indicates increased porosity of bones resulting in low bone density; increased bone fragility; and an increased risk for fracture, often with minimal trauma.
During the adolescent years, bone accrues at a rapid rate, and optimal bone accrual during this time is essential to attain optimal peak bone mass, typically achieved in the third decade of life. Bone mass then stays stable until the 40s-50s, after which it starts to decline. One’s peak bone mass sets the stage for both immediate and future bone health. Individuals with lower peak bone mass tend to have less optimal bone health throughout their lives, and this becomes particularly problematic in older men and in the postmenopausal years for women.
One’s genes have a major impact on bone density and are currently not modifiable.
Modifiable factors include mechanical loading of bones through exercise activity, maintaining a normal body weight, and ensuring adequate intake of micronutrients (including calcium and vitamin D) and macronutrients. Medications such as glucocorticoids that have deleterious effects on bones should be limited as far as possible. Endocrine, gastrointestinal, renal, and rheumatologic conditions and others, such as cancer, which are known to be associated with reduced bone density and increased fracture risk, should be managed appropriately.
A deficiency of the gonadal hormones (estrogen and testosterone) and high blood concentrations of cortisol are particularly deleterious to bone. Hormone replacement therapy in those with gonadal hormone deficiency and strategies to reduce cortisol levels in those with hypercortisolemia are essential to prevent osteoporosis and also improve bone density over time. The same applies to management of conditions such as anorexia nervosa, relative energy deficiency in sports, inflammatory bowel disease, celiac disease, cystic fibrosis, chronic kidney disease, and chronic arthritis.
Once osteoporosis has developed, depending on the cause, these strategies may not be sufficient to completely reverse the condition, and pharmacologic therapy may be necessary to improve bone density and reduce fracture risk. This is particularly an issue with postmenopausal women and older men. In these individuals, medications that increase bone formation or reduce bone loss may be necessary.
Medications that reduce bone loss include bisphosphonates and denosumab; these are also called “antiresorptive medications” because they reduce bone resorption by cells called osteoclasts. Bisphosphonates include alendronate, risedronate, ibandronate, pamidronate, and zoledronic acid, and these medications have direct effects on osteoclasts, reducing their activity. Some bisphosphonates, such as alendronate and risedronate, are taken orally (daily, weekly, or monthly, depending on the medication and its strength), whereas others, such as pamidronate and zoledronic acid, are administered intravenously: every 3-4 months for pamidronate and every 6-12 months for zoledronic acid. Ibandronate is available both orally and intravenously.
Denosumab is a medication that inhibits the action of receptor activator of nuclear factor-kappa ligand 1 (RANKL), which otherwise increases osteoclast activity. It is administered as a subcutaneous injection every 6 months to treat osteoporosis. One concern with denosumab is a rapid increase in bone loss after its discontinuation.
Medications that increase bone formation are called bone anabolics and include teriparatide, abaloparatide, and romosozumab. Teriparatide is a synthetic form of parathyroid hormone (recombinant PTH1-34) administered daily for up to 2 years. Abaloparatide is a synthetic analog of parathyroid hormone–related peptide (PTHrP), which is also administered daily as a subcutaneous injection. Romosozumab inhibits sclerostin (a substance that otherwise reduces bone formation and increases bone resorption) and is administered as a subcutaneous injection once a month. Effects of these medications tend to be lost after they are discontinued.
In 2019, the Endocrine Society published guidelines for managing postmenopausal osteoporosis. The guidelines recommend lifestyle modifications, including attention to diet, calcium and vitamin D supplements, and weight-bearing exercise for all postmenopausal women. They also recommend assessing fracture risk using country-specific existing models.
Guidelines vary depending on whether fracture risk is low, moderate, or high. Patients at low risk are followed and reassessed every 2-4 years for fracture risk. Those at moderate risk may be followed similarly or prescribed bisphosphonates. Those at high risk are prescribed an antiresorptive, such as a bisphosphonate or denosumab, or a bone anabolic, such as teriparatide or abaloparatide (for up to 2 years) or romosozumab (for a year), with calcium and vitamin D and are reassessed at defined intervals for fracture risk; subsequent management then depends on the assessed fracture risk.
People who are on a bone anabolic should typically follow this with an antiresorptive medication to maintain the gains achieved with the former after that medication is discontinued. Patients who discontinue denosumab should be switched to bisphosphonates to prevent the increase in bone loss that typically occurs.
In postmenopausal women who are intolerant to or inappropriate for use of these medications, guidelines vary depending on age (younger or older than 60 years) and presence or absence of vasomotor symptoms (such as hot flashes). Options could include the use of calcium and vitamin D supplements; hormone replacement therapy with estrogen with or without a progestin; or selective estrogen receptor modulators (such as raloxifene or bazedoxifene), tibolone, or calcitonin.
It’s important to recognize that all pharmacologic therapy carries the risk for adverse events, and it’s essential to take the necessary steps to prevent, monitor for, and manage any adverse effects that may develop.
Managing osteoporosis in older men could include the use of bone anabolics and/or antiresorptives. In younger individuals, use of pharmacologic therapy is less common but sometimes necessary, particularly when bone density is very low and associated with a problematic fracture history — for example, in those with genetic conditions such as osteogenesis imperfecta. Furthermore, the occurrence of vertebral compression fractures often requires bisphosphonate treatment regardless of bone density, particularly in patients on chronic glucocorticoid therapy.
Preventing osteoporosis is best managed by paying attention to lifestyle; optimizing nutrition and calcium and vitamin D intake; and managing conditions and limiting the use of medications that reduce bone density.
However, in certain patients, these measures are not enough, and pharmacologic therapy with bone anabolics or antiresorptives may be necessary to improve bone density and reduce fracture risk.
Dr. Misra, of the University of Virginia and UVA Health Children’s Hospital, Charlottesville, disclosed ties with AbbVie, Sanofi, and Ipsen.
A version of this article appeared on Medscape.com.
Hormones and Viruses Influence Each Other: Consider These Connections in Your Patients
Stefan Bornstein, MD, PhD, professor, made it clear during a press conference at the 67th Congress of the German Society of Endocrinology (DGE) that there is more than one interaction between them. Nowadays, one can almost speak of an “endocrine virology and even of the virome as an additional, hormonally metabolically active gland,” said Dr. Bornstein, who will receive the Berthold Medal from the DGE in 2024.
Many questions remain unanswered: “We need a better understanding of the interaction of hormone systems with infectious agents — from basics to therapeutic applications,” emphasized the director of the Medical Clinic and Polyclinic III and the Center for Internal Medicine at the Carl Gustav Carus University Hospital, Dresden, Germany.
If infectious diseases could trigger diabetes and other metabolic diseases, this means that “through vaccination programs, we may be able to prevent the occurrence of common metabolic diseases such as diabetes,” said Dr. Bornstein. He highlighted that many people who experienced severe COVID-19 during the pandemic, or died from it, exhibited diabetes or a pre-metabolic syndrome.
“SARS-CoV-2 has utilized an endocrine signaling pathway to invade our cells and cause damage in the organ systems and inflammation,” said Dr. Bornstein. Conversely, it is now known that infections with coronaviruses or other infectious agents like influenza can significantly worsen metabolic status, diabetes, and other endocrine diseases.
SARS-CoV-2 Infects the Beta Cells
Data from the COVID-19 pandemic showed that the likelihood of developing type 1 diabetes significantly increases with a SARS-CoV-2 infection. Researchers led by Dr. Bornstein demonstrated in 2021 that SARS-CoV-2 can infect the insulin-producing cells of the organ. They examined pancreatic tissue from 20 patients who died from COVID-19 using immunofluorescence, immunohistochemistry, RNA in situ hybridization, and electron microscopy.
They found viral SARS-CoV-2 infiltration of the beta cells in all patients. In 11 patients with COVID-19, the expression of ACE2, TMPRSS, and other receptors and factors like DPP4, HMBG1, and NRP1 that can facilitate virus entry was examined. They found that even in the absence of manifest newly onset diabetes, necroptotic cell death, immune cell infiltration, and SARS-CoV-2 infection of the pancreas beta cells can contribute to varying degrees of metabolic disturbance in patients with COVID-19.
In a report published in October 2020, Tim Hollstein, MD, from the Institute for Diabetology and Clinical Metabolic Research at UKSH in Kiel, Germany, and colleagues described the case of a 19-year-old man who developed symptoms of insulin-dependent diabetes after a SARS-CoV-2 infection, without the presence of autoantibodies typical for type 1 diabetes.
The man presented to the emergency department with diabetic ketoacidosis, a C-peptide level of 0.62 µg/L, a blood glucose concentration of 30.6 mmol/L (552 mg/dL), and an A1c level of 16.8%. The patient’s history revealed a probable SARS-CoV-2 infection 5-7 weeks before admission, based on a positive antibody test against SARS-CoV-2.
Some Viruses Produce Insulin-Like Proteins
Recent studies have shown that some viruses can produce insulin-like proteins or hormones that interfere with the metabolism of the affected organism, reported Dr. Bornstein. In addition to metabolic regulation, these “viral hormones” also seem to influence cell turnover and cell death.
Dr. Bornstein pointed out that antiviral medications can delay the onset of type 1 diabetes by preserving the function of insulin-producing beta cells. It has also been shown that conventional medications used to treat hormonal disorders can reduce the susceptibility of the organism to infections — such as antidiabetic preparations like DPP-4 inhibitors or metformin.
In a review published in 2023, Nikolaos Perakakis, MD, professor, research group leader at the Paul Langerhans Institute Dresden, Dresden, Germany, Dr. Bornstein, and colleagues discussed scientific evidence for a close mutual dependence between various virus infections and metabolic diseases. They discussed how viruses can lead to the development or progression of metabolic diseases and vice versa and how metabolic diseases can increase the severity of a virus infection.
Viruses Favor Metabolic Diseases...
Viruses can favor metabolic diseases by, for example, influencing the regulation of cell survival and specific signaling pathways relevant for cell death, proliferation, or dedifferentiation in important endocrine and metabolic organs. Viruses are also capable of controlling cellular glucose metabolism by modulating glucose transporters, altering glucose uptake, regulating signaling pathways, and stimulating glycolysis in infected cells.
Due to the destruction of beta cells, enteroviruses, but also the mumps virus, parainfluenza virus, or human herpes virus 6, are associated with the development of diabetes. The timing of infection often precedes or coincides with the peak of development of islet autoantibodies. The fact that only a small proportion of patients actually develop type 1 diabetes suggests that genetic background, and likely the timing of infection, play an important role.
...And Metabolic Diseases Influence the Course of Infection
Infection with hepatitis C virus (HCV), on the other hand, is associated with an increased risk for type 2 diabetes, with the risk being higher for older individuals with a family history of diabetes. The negative effects of HCV on glucose balance are mainly attributed to increased insulin resistance in the liver. HCV reduces hepatic glucose uptake by downregulating the expression of glucose transporters and additionally impairs insulin signal transduction by inhibiting the PI3K/Akt signaling pathway.
People with obesity, diabetes, or insulin resistance show significant changes in the innate and adaptive functions of the immune system. Regarding the innate immune system, impaired chemotaxis and phagocytosis of neutrophils have been observed in patients with type 2 diabetes.
In the case of obesity, the number of natural killer T cells in adipose tissue decreases, whereas B cells accumulate in adipose tissue and secrete more proinflammatory cytokines. Longitudinal multiomics analyses of various biopsies from individuals with insulin resistance showed a delayed immune response to respiratory virus infections compared with individuals with normal insulin sensitivity.
This story was translated from Medscape Germany using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.
Stefan Bornstein, MD, PhD, professor, made it clear during a press conference at the 67th Congress of the German Society of Endocrinology (DGE) that there is more than one interaction between them. Nowadays, one can almost speak of an “endocrine virology and even of the virome as an additional, hormonally metabolically active gland,” said Dr. Bornstein, who will receive the Berthold Medal from the DGE in 2024.
Many questions remain unanswered: “We need a better understanding of the interaction of hormone systems with infectious agents — from basics to therapeutic applications,” emphasized the director of the Medical Clinic and Polyclinic III and the Center for Internal Medicine at the Carl Gustav Carus University Hospital, Dresden, Germany.
If infectious diseases could trigger diabetes and other metabolic diseases, this means that “through vaccination programs, we may be able to prevent the occurrence of common metabolic diseases such as diabetes,” said Dr. Bornstein. He highlighted that many people who experienced severe COVID-19 during the pandemic, or died from it, exhibited diabetes or a pre-metabolic syndrome.
“SARS-CoV-2 has utilized an endocrine signaling pathway to invade our cells and cause damage in the organ systems and inflammation,” said Dr. Bornstein. Conversely, it is now known that infections with coronaviruses or other infectious agents like influenza can significantly worsen metabolic status, diabetes, and other endocrine diseases.
SARS-CoV-2 Infects the Beta Cells
Data from the COVID-19 pandemic showed that the likelihood of developing type 1 diabetes significantly increases with a SARS-CoV-2 infection. Researchers led by Dr. Bornstein demonstrated in 2021 that SARS-CoV-2 can infect the insulin-producing cells of the organ. They examined pancreatic tissue from 20 patients who died from COVID-19 using immunofluorescence, immunohistochemistry, RNA in situ hybridization, and electron microscopy.
They found viral SARS-CoV-2 infiltration of the beta cells in all patients. In 11 patients with COVID-19, the expression of ACE2, TMPRSS, and other receptors and factors like DPP4, HMBG1, and NRP1 that can facilitate virus entry was examined. They found that even in the absence of manifest newly onset diabetes, necroptotic cell death, immune cell infiltration, and SARS-CoV-2 infection of the pancreas beta cells can contribute to varying degrees of metabolic disturbance in patients with COVID-19.
In a report published in October 2020, Tim Hollstein, MD, from the Institute for Diabetology and Clinical Metabolic Research at UKSH in Kiel, Germany, and colleagues described the case of a 19-year-old man who developed symptoms of insulin-dependent diabetes after a SARS-CoV-2 infection, without the presence of autoantibodies typical for type 1 diabetes.
The man presented to the emergency department with diabetic ketoacidosis, a C-peptide level of 0.62 µg/L, a blood glucose concentration of 30.6 mmol/L (552 mg/dL), and an A1c level of 16.8%. The patient’s history revealed a probable SARS-CoV-2 infection 5-7 weeks before admission, based on a positive antibody test against SARS-CoV-2.
Some Viruses Produce Insulin-Like Proteins
Recent studies have shown that some viruses can produce insulin-like proteins or hormones that interfere with the metabolism of the affected organism, reported Dr. Bornstein. In addition to metabolic regulation, these “viral hormones” also seem to influence cell turnover and cell death.
Dr. Bornstein pointed out that antiviral medications can delay the onset of type 1 diabetes by preserving the function of insulin-producing beta cells. It has also been shown that conventional medications used to treat hormonal disorders can reduce the susceptibility of the organism to infections — such as antidiabetic preparations like DPP-4 inhibitors or metformin.
In a review published in 2023, Nikolaos Perakakis, MD, professor, research group leader at the Paul Langerhans Institute Dresden, Dresden, Germany, Dr. Bornstein, and colleagues discussed scientific evidence for a close mutual dependence between various virus infections and metabolic diseases. They discussed how viruses can lead to the development or progression of metabolic diseases and vice versa and how metabolic diseases can increase the severity of a virus infection.
Viruses Favor Metabolic Diseases...
Viruses can favor metabolic diseases by, for example, influencing the regulation of cell survival and specific signaling pathways relevant for cell death, proliferation, or dedifferentiation in important endocrine and metabolic organs. Viruses are also capable of controlling cellular glucose metabolism by modulating glucose transporters, altering glucose uptake, regulating signaling pathways, and stimulating glycolysis in infected cells.
Due to the destruction of beta cells, enteroviruses, but also the mumps virus, parainfluenza virus, or human herpes virus 6, are associated with the development of diabetes. The timing of infection often precedes or coincides with the peak of development of islet autoantibodies. The fact that only a small proportion of patients actually develop type 1 diabetes suggests that genetic background, and likely the timing of infection, play an important role.
...And Metabolic Diseases Influence the Course of Infection
Infection with hepatitis C virus (HCV), on the other hand, is associated with an increased risk for type 2 diabetes, with the risk being higher for older individuals with a family history of diabetes. The negative effects of HCV on glucose balance are mainly attributed to increased insulin resistance in the liver. HCV reduces hepatic glucose uptake by downregulating the expression of glucose transporters and additionally impairs insulin signal transduction by inhibiting the PI3K/Akt signaling pathway.
People with obesity, diabetes, or insulin resistance show significant changes in the innate and adaptive functions of the immune system. Regarding the innate immune system, impaired chemotaxis and phagocytosis of neutrophils have been observed in patients with type 2 diabetes.
In the case of obesity, the number of natural killer T cells in adipose tissue decreases, whereas B cells accumulate in adipose tissue and secrete more proinflammatory cytokines. Longitudinal multiomics analyses of various biopsies from individuals with insulin resistance showed a delayed immune response to respiratory virus infections compared with individuals with normal insulin sensitivity.
This story was translated from Medscape Germany using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.
Stefan Bornstein, MD, PhD, professor, made it clear during a press conference at the 67th Congress of the German Society of Endocrinology (DGE) that there is more than one interaction between them. Nowadays, one can almost speak of an “endocrine virology and even of the virome as an additional, hormonally metabolically active gland,” said Dr. Bornstein, who will receive the Berthold Medal from the DGE in 2024.
Many questions remain unanswered: “We need a better understanding of the interaction of hormone systems with infectious agents — from basics to therapeutic applications,” emphasized the director of the Medical Clinic and Polyclinic III and the Center for Internal Medicine at the Carl Gustav Carus University Hospital, Dresden, Germany.
If infectious diseases could trigger diabetes and other metabolic diseases, this means that “through vaccination programs, we may be able to prevent the occurrence of common metabolic diseases such as diabetes,” said Dr. Bornstein. He highlighted that many people who experienced severe COVID-19 during the pandemic, or died from it, exhibited diabetes or a pre-metabolic syndrome.
“SARS-CoV-2 has utilized an endocrine signaling pathway to invade our cells and cause damage in the organ systems and inflammation,” said Dr. Bornstein. Conversely, it is now known that infections with coronaviruses or other infectious agents like influenza can significantly worsen metabolic status, diabetes, and other endocrine diseases.
SARS-CoV-2 Infects the Beta Cells
Data from the COVID-19 pandemic showed that the likelihood of developing type 1 diabetes significantly increases with a SARS-CoV-2 infection. Researchers led by Dr. Bornstein demonstrated in 2021 that SARS-CoV-2 can infect the insulin-producing cells of the organ. They examined pancreatic tissue from 20 patients who died from COVID-19 using immunofluorescence, immunohistochemistry, RNA in situ hybridization, and electron microscopy.
They found viral SARS-CoV-2 infiltration of the beta cells in all patients. In 11 patients with COVID-19, the expression of ACE2, TMPRSS, and other receptors and factors like DPP4, HMBG1, and NRP1 that can facilitate virus entry was examined. They found that even in the absence of manifest newly onset diabetes, necroptotic cell death, immune cell infiltration, and SARS-CoV-2 infection of the pancreas beta cells can contribute to varying degrees of metabolic disturbance in patients with COVID-19.
In a report published in October 2020, Tim Hollstein, MD, from the Institute for Diabetology and Clinical Metabolic Research at UKSH in Kiel, Germany, and colleagues described the case of a 19-year-old man who developed symptoms of insulin-dependent diabetes after a SARS-CoV-2 infection, without the presence of autoantibodies typical for type 1 diabetes.
The man presented to the emergency department with diabetic ketoacidosis, a C-peptide level of 0.62 µg/L, a blood glucose concentration of 30.6 mmol/L (552 mg/dL), and an A1c level of 16.8%. The patient’s history revealed a probable SARS-CoV-2 infection 5-7 weeks before admission, based on a positive antibody test against SARS-CoV-2.
Some Viruses Produce Insulin-Like Proteins
Recent studies have shown that some viruses can produce insulin-like proteins or hormones that interfere with the metabolism of the affected organism, reported Dr. Bornstein. In addition to metabolic regulation, these “viral hormones” also seem to influence cell turnover and cell death.
Dr. Bornstein pointed out that antiviral medications can delay the onset of type 1 diabetes by preserving the function of insulin-producing beta cells. It has also been shown that conventional medications used to treat hormonal disorders can reduce the susceptibility of the organism to infections — such as antidiabetic preparations like DPP-4 inhibitors or metformin.
In a review published in 2023, Nikolaos Perakakis, MD, professor, research group leader at the Paul Langerhans Institute Dresden, Dresden, Germany, Dr. Bornstein, and colleagues discussed scientific evidence for a close mutual dependence between various virus infections and metabolic diseases. They discussed how viruses can lead to the development or progression of metabolic diseases and vice versa and how metabolic diseases can increase the severity of a virus infection.
Viruses Favor Metabolic Diseases...
Viruses can favor metabolic diseases by, for example, influencing the regulation of cell survival and specific signaling pathways relevant for cell death, proliferation, or dedifferentiation in important endocrine and metabolic organs. Viruses are also capable of controlling cellular glucose metabolism by modulating glucose transporters, altering glucose uptake, regulating signaling pathways, and stimulating glycolysis in infected cells.
Due to the destruction of beta cells, enteroviruses, but also the mumps virus, parainfluenza virus, or human herpes virus 6, are associated with the development of diabetes. The timing of infection often precedes or coincides with the peak of development of islet autoantibodies. The fact that only a small proportion of patients actually develop type 1 diabetes suggests that genetic background, and likely the timing of infection, play an important role.
...And Metabolic Diseases Influence the Course of Infection
Infection with hepatitis C virus (HCV), on the other hand, is associated with an increased risk for type 2 diabetes, with the risk being higher for older individuals with a family history of diabetes. The negative effects of HCV on glucose balance are mainly attributed to increased insulin resistance in the liver. HCV reduces hepatic glucose uptake by downregulating the expression of glucose transporters and additionally impairs insulin signal transduction by inhibiting the PI3K/Akt signaling pathway.
People with obesity, diabetes, or insulin resistance show significant changes in the innate and adaptive functions of the immune system. Regarding the innate immune system, impaired chemotaxis and phagocytosis of neutrophils have been observed in patients with type 2 diabetes.
In the case of obesity, the number of natural killer T cells in adipose tissue decreases, whereas B cells accumulate in adipose tissue and secrete more proinflammatory cytokines. Longitudinal multiomics analyses of various biopsies from individuals with insulin resistance showed a delayed immune response to respiratory virus infections compared with individuals with normal insulin sensitivity.
This story was translated from Medscape Germany using several editorial tools, including AI, as part of the process. Human editors reviewed this content before publication. A version of this article appeared on Medscape.com.
Long-Term Calcium and Vitamin D: Cancer Deaths Down, CVD Deaths Up in Older Women?
Some doctors may be scratching their heads over a new analysis reporting that combined calcium and vitamin D (CaD) supplements appear to be associated with a slight 6% increase in cardiovascular (CVD) mortality, a slight 7% decrease in cancer risk, and no effect on osteoporotic fracture in postmenopausal women.
The study, in Annals of Internal Medicine, found no effect of supplementation on all-cause mortality.
The findings emerged from an analysis of more than 20 years’ follow-up data on a randomized trial in postmenopausal women conducted as part of the Women’s Health Initiative (WHI).
Cynthia A. Thomson, PhD, RD, first author and cancer prevention scientist at the Arizona Cancer Center and a professor of health promotion sciences at the University of Arizona in Tucson said the findings recommend individualized assessment of the need for supplements for older women as they consider them in hopes of preventing fractures.
“Evaluate your patients individually and understand that there are some who may benefit from supplementation, for example, in terms of reducing colorectal cancer mortality,” Dr. Thomson said in an interview. The approach should be nuanced. “If you check the adequacy of vitamin D and calcium in their diets, supplementation may not be needed.” She added that supplementation is best considered in the context of a woman’s overall health profile, including risk factors for fracture, heart disease, and cancer, especially colorectal cancer (CRC).
Study Details
The investigators conducted postintervention follow-up of the WHI’s 7-year multicenter randomized intervention trial of CaD vs placebo.
Since existing evidence of long-term health outcomes was limited, the trial, begun in 1999 and closed in 2005, enrolled 36,282 postmenopausal women (mean age 62) with no history of breast or colorectal cancer. They were randomly assigned 1:1 to supplementation with 1000 mg of calcium carbonate (400 mg elemental calcium) plus 400 IU of vitamin D3 daily or placebo, taken twice daily in half doses.
Study outcomes were incidence of CRC, total and invasive breast cancer; disease-specific and all-cause mortality; total CVD; and hip fracture measured through December 2020, with analyses stratified by personal supplement usage.
Cancer. CaD was associated with reduced incident total cancer, CRC, and invasive breast cancer — notably among participants not taking CaD before randomization. Cancer incidence estimates varied widely, the authors noted, when stratified by supplement use before randomization. Noting that CaD seemed to have more cancer-related impact in those without prior supplementation, the authors suggested supplementation may affect cancer biology primarily by augmenting nutrient insufficiency.
An estimated 7% reduction in cancer mortality was observed after a median cumulative follow-up of 22.3 years: 1817 vs 1943 deaths (hazard ratio, 0.93; 95% CI, 0.87-0.99).
CVD. An estimated 6% increase in CVD mortality was seen in the CaD group: 2621 vs 2420 deaths (HR, 1.06; 95% CI, 1.01-1.12). Pretrial supplement users were found to be at higher CVD risk.
Hip fracture. No effect on hip fracture risk was measured, but the authors cautioned that hip fracture and CVD outcomes were available only for a subset of participants, and the effects of calcium alone vs vitamin D alone vs the combination could not be disentangled.
In a small subgroup analysis, some CaD users were seen to respond in terms of bone mineral density but since only 4 of the study’s 40 sites collected such information, the study was underpowered to examine the effect. ”Many other studies, however, show a response to supplementation in women who already have bone mineral deficits,” Dr. Thomson said.
The Calcification Question
One of the possible mechanisms of harm is that high-dose calcium supplements can increase the rate of blood coagulation and promote vascular calcification, said Emma Laing, PhD, RD, director of dietetics at the University of Georgia in Athens and a spokesperson for the Chicago-based Academy of Nutrition and Dietetics.
“Other factors that should be considered when determining a patient’s CVD risk are race, genetic predisposition, medical and social history, response to stress, and lifestyle behaviors, as well as the length of time supplements have been consumed,” added Dr. Laing, who was not involved in the WHI analysis.
“We asked ourselves if CaD supplements might contribute to calcification of the coronary arteries, since some believe this to be the case, although the literature is mixed,” said Dr. Thomson.
“So we did a shorter ancillary study in a small sample of several hundred [women] to see if there was any increase in calcification” and no difference was seen on imaging across the two arms. “However, women who were already on supplements before entering the study seemed to be at higher CVD risk,” she said.
Added study coauthor JoAnn E. Manson, MD, DrPH, chief of the division of preventive medicine at Brigham and Women’s Hospital and professor of women’s health at Harvard Medical School, both in Boston: “With no increase or decrease in coronary artery calcium at the end of the trial, we don’t believe starting or continuing calcium/vitamin D supplements should require screening for coronary artery disease.”
Some randomized trials and systematic reviews, however, have observed an increased risk of CVD in healthy patients on calcium supplements, with one Korean meta-analysis reporting a 15% increase in CVD risk in healthy postmenopausal women taking calcium supplements. Another meta-analysis found a link between calcium supplements and a greater risk of various cardiovascular outcomes, especially myocardial infarction.
Vitamin D Supplementation
As for vitamin D only supplementation, an updated meta-analysis including more than 83,000 individuals showed that it confers no cardiovascular protection and is therefore not indicated for this purpose.
Practice Considerations
Offering an outsider’s perspective, Sarah G. Candler, MD, MPH, an internist in Houston specializing in primary care for older high-risk adults, said: “Unfortunately, this latest study continues the trend of creating more questions than answers. If the adverse outcome of CVD death is a result of supplementation, it is unclear if this is due to the vitamin D, the calcium, or both. And it is unclear if this is dose dependent, time dependent, or due to concurrent risk factors unique to certain populations.
“It is recommended that patients at risk of osteoporosis based on age, sex, medications, and lifestyle be screened for osteoporosis and treated accordingly, including supplementation with CaD,” Dr. Candler said. “It remains unclear whether supplementation with CaD in the absence of osteoporosis and osteopenia is net beneficial or harmful, and at this time I would not recommend it to my patients.”
Added Dr. Manson: “The very small increase seen in cardiovascular mortality wouldn’t be a reason to discontinue supplementation among women who have been advised by their healthcare providers to take these supplements for bone health or other purposes.
“Among those at usual risk of fracture, we recommend trying to obtain adequate calcium and vitamin D from food sources first and to use supplements only for the purpose of filling gaps in intake,” Dr. Manson continued. Overall, the findings support the national recommended dietary allowances for daily calcium intake of 1200 mg and daily vitamin D intake of 600-800 IU among postmenopausal women for maintenance of bone health, she said.
While a 2022 study found that vitamin D supplementation alone did not prevent fractures in healthy adults, other research has shown that a calcium/vitamin D combination is more likely to protect the skeleton.
“Patients at risk for fractures will probably benefit from calcium and/or vitamin D supplementation if they do not meet dietary intake requirements, have malabsorption syndromes, are taking medications that affect nutrient absorption, or if they are older and not regularly exposed to sunlight,” said Dr. Laing. “A combination of biochemical, imaging, functional, and dietary intake data can help determine if a supplement is warranted.”
She stressed that additional research is needed in more diverse populations before changing practice guidelines. “However, doctors should continue to weigh the risks and benefits of prescribing supplements for each patient.”
The WHI program is funded by the National Heart, Lung, and Blood Institute. Dr. Thomson disclosed no competing interests. Dr. Manson reported a relationship with Mars Edge. Multiple authors reported grant support from government funding agencies. The outside commentators had no relevant competing interests to disclose.
Some doctors may be scratching their heads over a new analysis reporting that combined calcium and vitamin D (CaD) supplements appear to be associated with a slight 6% increase in cardiovascular (CVD) mortality, a slight 7% decrease in cancer risk, and no effect on osteoporotic fracture in postmenopausal women.
The study, in Annals of Internal Medicine, found no effect of supplementation on all-cause mortality.
The findings emerged from an analysis of more than 20 years’ follow-up data on a randomized trial in postmenopausal women conducted as part of the Women’s Health Initiative (WHI).
Cynthia A. Thomson, PhD, RD, first author and cancer prevention scientist at the Arizona Cancer Center and a professor of health promotion sciences at the University of Arizona in Tucson said the findings recommend individualized assessment of the need for supplements for older women as they consider them in hopes of preventing fractures.
“Evaluate your patients individually and understand that there are some who may benefit from supplementation, for example, in terms of reducing colorectal cancer mortality,” Dr. Thomson said in an interview. The approach should be nuanced. “If you check the adequacy of vitamin D and calcium in their diets, supplementation may not be needed.” She added that supplementation is best considered in the context of a woman’s overall health profile, including risk factors for fracture, heart disease, and cancer, especially colorectal cancer (CRC).
Study Details
The investigators conducted postintervention follow-up of the WHI’s 7-year multicenter randomized intervention trial of CaD vs placebo.
Since existing evidence of long-term health outcomes was limited, the trial, begun in 1999 and closed in 2005, enrolled 36,282 postmenopausal women (mean age 62) with no history of breast or colorectal cancer. They were randomly assigned 1:1 to supplementation with 1000 mg of calcium carbonate (400 mg elemental calcium) plus 400 IU of vitamin D3 daily or placebo, taken twice daily in half doses.
Study outcomes were incidence of CRC, total and invasive breast cancer; disease-specific and all-cause mortality; total CVD; and hip fracture measured through December 2020, with analyses stratified by personal supplement usage.
Cancer. CaD was associated with reduced incident total cancer, CRC, and invasive breast cancer — notably among participants not taking CaD before randomization. Cancer incidence estimates varied widely, the authors noted, when stratified by supplement use before randomization. Noting that CaD seemed to have more cancer-related impact in those without prior supplementation, the authors suggested supplementation may affect cancer biology primarily by augmenting nutrient insufficiency.
An estimated 7% reduction in cancer mortality was observed after a median cumulative follow-up of 22.3 years: 1817 vs 1943 deaths (hazard ratio, 0.93; 95% CI, 0.87-0.99).
CVD. An estimated 6% increase in CVD mortality was seen in the CaD group: 2621 vs 2420 deaths (HR, 1.06; 95% CI, 1.01-1.12). Pretrial supplement users were found to be at higher CVD risk.
Hip fracture. No effect on hip fracture risk was measured, but the authors cautioned that hip fracture and CVD outcomes were available only for a subset of participants, and the effects of calcium alone vs vitamin D alone vs the combination could not be disentangled.
In a small subgroup analysis, some CaD users were seen to respond in terms of bone mineral density but since only 4 of the study’s 40 sites collected such information, the study was underpowered to examine the effect. ”Many other studies, however, show a response to supplementation in women who already have bone mineral deficits,” Dr. Thomson said.
The Calcification Question
One of the possible mechanisms of harm is that high-dose calcium supplements can increase the rate of blood coagulation and promote vascular calcification, said Emma Laing, PhD, RD, director of dietetics at the University of Georgia in Athens and a spokesperson for the Chicago-based Academy of Nutrition and Dietetics.
“Other factors that should be considered when determining a patient’s CVD risk are race, genetic predisposition, medical and social history, response to stress, and lifestyle behaviors, as well as the length of time supplements have been consumed,” added Dr. Laing, who was not involved in the WHI analysis.
“We asked ourselves if CaD supplements might contribute to calcification of the coronary arteries, since some believe this to be the case, although the literature is mixed,” said Dr. Thomson.
“So we did a shorter ancillary study in a small sample of several hundred [women] to see if there was any increase in calcification” and no difference was seen on imaging across the two arms. “However, women who were already on supplements before entering the study seemed to be at higher CVD risk,” she said.
Added study coauthor JoAnn E. Manson, MD, DrPH, chief of the division of preventive medicine at Brigham and Women’s Hospital and professor of women’s health at Harvard Medical School, both in Boston: “With no increase or decrease in coronary artery calcium at the end of the trial, we don’t believe starting or continuing calcium/vitamin D supplements should require screening for coronary artery disease.”
Some randomized trials and systematic reviews, however, have observed an increased risk of CVD in healthy patients on calcium supplements, with one Korean meta-analysis reporting a 15% increase in CVD risk in healthy postmenopausal women taking calcium supplements. Another meta-analysis found a link between calcium supplements and a greater risk of various cardiovascular outcomes, especially myocardial infarction.
Vitamin D Supplementation
As for vitamin D only supplementation, an updated meta-analysis including more than 83,000 individuals showed that it confers no cardiovascular protection and is therefore not indicated for this purpose.
Practice Considerations
Offering an outsider’s perspective, Sarah G. Candler, MD, MPH, an internist in Houston specializing in primary care for older high-risk adults, said: “Unfortunately, this latest study continues the trend of creating more questions than answers. If the adverse outcome of CVD death is a result of supplementation, it is unclear if this is due to the vitamin D, the calcium, or both. And it is unclear if this is dose dependent, time dependent, or due to concurrent risk factors unique to certain populations.
“It is recommended that patients at risk of osteoporosis based on age, sex, medications, and lifestyle be screened for osteoporosis and treated accordingly, including supplementation with CaD,” Dr. Candler said. “It remains unclear whether supplementation with CaD in the absence of osteoporosis and osteopenia is net beneficial or harmful, and at this time I would not recommend it to my patients.”
Added Dr. Manson: “The very small increase seen in cardiovascular mortality wouldn’t be a reason to discontinue supplementation among women who have been advised by their healthcare providers to take these supplements for bone health or other purposes.
“Among those at usual risk of fracture, we recommend trying to obtain adequate calcium and vitamin D from food sources first and to use supplements only for the purpose of filling gaps in intake,” Dr. Manson continued. Overall, the findings support the national recommended dietary allowances for daily calcium intake of 1200 mg and daily vitamin D intake of 600-800 IU among postmenopausal women for maintenance of bone health, she said.
While a 2022 study found that vitamin D supplementation alone did not prevent fractures in healthy adults, other research has shown that a calcium/vitamin D combination is more likely to protect the skeleton.
“Patients at risk for fractures will probably benefit from calcium and/or vitamin D supplementation if they do not meet dietary intake requirements, have malabsorption syndromes, are taking medications that affect nutrient absorption, or if they are older and not regularly exposed to sunlight,” said Dr. Laing. “A combination of biochemical, imaging, functional, and dietary intake data can help determine if a supplement is warranted.”
She stressed that additional research is needed in more diverse populations before changing practice guidelines. “However, doctors should continue to weigh the risks and benefits of prescribing supplements for each patient.”
The WHI program is funded by the National Heart, Lung, and Blood Institute. Dr. Thomson disclosed no competing interests. Dr. Manson reported a relationship with Mars Edge. Multiple authors reported grant support from government funding agencies. The outside commentators had no relevant competing interests to disclose.
Some doctors may be scratching their heads over a new analysis reporting that combined calcium and vitamin D (CaD) supplements appear to be associated with a slight 6% increase in cardiovascular (CVD) mortality, a slight 7% decrease in cancer risk, and no effect on osteoporotic fracture in postmenopausal women.
The study, in Annals of Internal Medicine, found no effect of supplementation on all-cause mortality.
The findings emerged from an analysis of more than 20 years’ follow-up data on a randomized trial in postmenopausal women conducted as part of the Women’s Health Initiative (WHI).
Cynthia A. Thomson, PhD, RD, first author and cancer prevention scientist at the Arizona Cancer Center and a professor of health promotion sciences at the University of Arizona in Tucson said the findings recommend individualized assessment of the need for supplements for older women as they consider them in hopes of preventing fractures.
“Evaluate your patients individually and understand that there are some who may benefit from supplementation, for example, in terms of reducing colorectal cancer mortality,” Dr. Thomson said in an interview. The approach should be nuanced. “If you check the adequacy of vitamin D and calcium in their diets, supplementation may not be needed.” She added that supplementation is best considered in the context of a woman’s overall health profile, including risk factors for fracture, heart disease, and cancer, especially colorectal cancer (CRC).
Study Details
The investigators conducted postintervention follow-up of the WHI’s 7-year multicenter randomized intervention trial of CaD vs placebo.
Since existing evidence of long-term health outcomes was limited, the trial, begun in 1999 and closed in 2005, enrolled 36,282 postmenopausal women (mean age 62) with no history of breast or colorectal cancer. They were randomly assigned 1:1 to supplementation with 1000 mg of calcium carbonate (400 mg elemental calcium) plus 400 IU of vitamin D3 daily or placebo, taken twice daily in half doses.
Study outcomes were incidence of CRC, total and invasive breast cancer; disease-specific and all-cause mortality; total CVD; and hip fracture measured through December 2020, with analyses stratified by personal supplement usage.
Cancer. CaD was associated with reduced incident total cancer, CRC, and invasive breast cancer — notably among participants not taking CaD before randomization. Cancer incidence estimates varied widely, the authors noted, when stratified by supplement use before randomization. Noting that CaD seemed to have more cancer-related impact in those without prior supplementation, the authors suggested supplementation may affect cancer biology primarily by augmenting nutrient insufficiency.
An estimated 7% reduction in cancer mortality was observed after a median cumulative follow-up of 22.3 years: 1817 vs 1943 deaths (hazard ratio, 0.93; 95% CI, 0.87-0.99).
CVD. An estimated 6% increase in CVD mortality was seen in the CaD group: 2621 vs 2420 deaths (HR, 1.06; 95% CI, 1.01-1.12). Pretrial supplement users were found to be at higher CVD risk.
Hip fracture. No effect on hip fracture risk was measured, but the authors cautioned that hip fracture and CVD outcomes were available only for a subset of participants, and the effects of calcium alone vs vitamin D alone vs the combination could not be disentangled.
In a small subgroup analysis, some CaD users were seen to respond in terms of bone mineral density but since only 4 of the study’s 40 sites collected such information, the study was underpowered to examine the effect. ”Many other studies, however, show a response to supplementation in women who already have bone mineral deficits,” Dr. Thomson said.
The Calcification Question
One of the possible mechanisms of harm is that high-dose calcium supplements can increase the rate of blood coagulation and promote vascular calcification, said Emma Laing, PhD, RD, director of dietetics at the University of Georgia in Athens and a spokesperson for the Chicago-based Academy of Nutrition and Dietetics.
“Other factors that should be considered when determining a patient’s CVD risk are race, genetic predisposition, medical and social history, response to stress, and lifestyle behaviors, as well as the length of time supplements have been consumed,” added Dr. Laing, who was not involved in the WHI analysis.
“We asked ourselves if CaD supplements might contribute to calcification of the coronary arteries, since some believe this to be the case, although the literature is mixed,” said Dr. Thomson.
“So we did a shorter ancillary study in a small sample of several hundred [women] to see if there was any increase in calcification” and no difference was seen on imaging across the two arms. “However, women who were already on supplements before entering the study seemed to be at higher CVD risk,” she said.
Added study coauthor JoAnn E. Manson, MD, DrPH, chief of the division of preventive medicine at Brigham and Women’s Hospital and professor of women’s health at Harvard Medical School, both in Boston: “With no increase or decrease in coronary artery calcium at the end of the trial, we don’t believe starting or continuing calcium/vitamin D supplements should require screening for coronary artery disease.”
Some randomized trials and systematic reviews, however, have observed an increased risk of CVD in healthy patients on calcium supplements, with one Korean meta-analysis reporting a 15% increase in CVD risk in healthy postmenopausal women taking calcium supplements. Another meta-analysis found a link between calcium supplements and a greater risk of various cardiovascular outcomes, especially myocardial infarction.
Vitamin D Supplementation
As for vitamin D only supplementation, an updated meta-analysis including more than 83,000 individuals showed that it confers no cardiovascular protection and is therefore not indicated for this purpose.
Practice Considerations
Offering an outsider’s perspective, Sarah G. Candler, MD, MPH, an internist in Houston specializing in primary care for older high-risk adults, said: “Unfortunately, this latest study continues the trend of creating more questions than answers. If the adverse outcome of CVD death is a result of supplementation, it is unclear if this is due to the vitamin D, the calcium, or both. And it is unclear if this is dose dependent, time dependent, or due to concurrent risk factors unique to certain populations.
“It is recommended that patients at risk of osteoporosis based on age, sex, medications, and lifestyle be screened for osteoporosis and treated accordingly, including supplementation with CaD,” Dr. Candler said. “It remains unclear whether supplementation with CaD in the absence of osteoporosis and osteopenia is net beneficial or harmful, and at this time I would not recommend it to my patients.”
Added Dr. Manson: “The very small increase seen in cardiovascular mortality wouldn’t be a reason to discontinue supplementation among women who have been advised by their healthcare providers to take these supplements for bone health or other purposes.
“Among those at usual risk of fracture, we recommend trying to obtain adequate calcium and vitamin D from food sources first and to use supplements only for the purpose of filling gaps in intake,” Dr. Manson continued. Overall, the findings support the national recommended dietary allowances for daily calcium intake of 1200 mg and daily vitamin D intake of 600-800 IU among postmenopausal women for maintenance of bone health, she said.
While a 2022 study found that vitamin D supplementation alone did not prevent fractures in healthy adults, other research has shown that a calcium/vitamin D combination is more likely to protect the skeleton.
“Patients at risk for fractures will probably benefit from calcium and/or vitamin D supplementation if they do not meet dietary intake requirements, have malabsorption syndromes, are taking medications that affect nutrient absorption, or if they are older and not regularly exposed to sunlight,” said Dr. Laing. “A combination of biochemical, imaging, functional, and dietary intake data can help determine if a supplement is warranted.”
She stressed that additional research is needed in more diverse populations before changing practice guidelines. “However, doctors should continue to weigh the risks and benefits of prescribing supplements for each patient.”
The WHI program is funded by the National Heart, Lung, and Blood Institute. Dr. Thomson disclosed no competing interests. Dr. Manson reported a relationship with Mars Edge. Multiple authors reported grant support from government funding agencies. The outside commentators had no relevant competing interests to disclose.
FROM ANNALS OF INTERNAL MEDICINE
Vitamin D Supplement Protects Insulin-Producing Cells in T1D
TOPLINE:
The remission period of type 1 diabetes (T1D) can be prolonged with high-dose ergocalciferol (a vitamin D analog), by preserving the function of insulin-producing beta cells in newly diagnosed patients.
METHODOLOGY:
- Beta cells may retain approximately 30%-50% function at the time of T1D diagnosis and continue producing insulin for months or years.
- Researchers conducted a secondary post hoc analysis of a randomized clinical trial looking at residual beta function and vitamin D supplementation in 36 youths (age, 10-21 years; mean age, 13.5 years; 33.3% women) with recently diagnosed T1D.
- Participants were randomly assigned to receive vitamin D (50,000 international units) or placebo every week for 2 months and then biweekly for 10 months.
- Mixed-meal tolerance tests were performed after overnight fasting at 0, 3, 6, 9, and 12 months, and blood draws were obtained 30 minutes and 90 minutes for post-meal C-peptide and glucose estimations.
- The fasting proinsulin to C-peptide ratio (PI:C) and the percentage change in the area under the curve of C-peptide from baseline (%ΔAUC) were calculated to test the effect of vitamin D on beta-cell function.
TAKEAWAY:
- Vitamin D supplementation improved the insulin secretion capacity of beta cells, as observed by the decrease in the mean fasting PI:C ratio compared with placebo (−0.0009 vs 0.0011; P =.01).
- The reduction in %ΔAUC of C-peptide was notably slower with vitamin D than placebo (−2.8% vs −4.7%; P =.03), indicating a longer delay in the loss of C-peptide.
IN PRACTICE:
“It is exciting to know that vitamin D could protect the beta cells of the pancreas and increase the natural production of good and functional insulin in these patients. This, in turn, prolongs the honeymoon phase of type 1 diabetes and leads to reduced long-term complications of this disease,” Benjamin Udoka Nwosu, MD, Northwell Health, Division of Endocrinology, Department of Pediatrics, Cohen Children’s Medical Center, New Hyde Park, New York, the principal author, said in a press release.
SOURCE:
The study was published online in JAMA Network Open.
LIMITATIONS:
It was a single-center study.
DISCLOSURES:
The study was supported by the National Institute of Diabetes and Digestive and Kidney Diseases. The authors did not report any conflicts of interest.
A version of this article appeared on Medscape.com.
TOPLINE:
The remission period of type 1 diabetes (T1D) can be prolonged with high-dose ergocalciferol (a vitamin D analog), by preserving the function of insulin-producing beta cells in newly diagnosed patients.
METHODOLOGY:
- Beta cells may retain approximately 30%-50% function at the time of T1D diagnosis and continue producing insulin for months or years.
- Researchers conducted a secondary post hoc analysis of a randomized clinical trial looking at residual beta function and vitamin D supplementation in 36 youths (age, 10-21 years; mean age, 13.5 years; 33.3% women) with recently diagnosed T1D.
- Participants were randomly assigned to receive vitamin D (50,000 international units) or placebo every week for 2 months and then biweekly for 10 months.
- Mixed-meal tolerance tests were performed after overnight fasting at 0, 3, 6, 9, and 12 months, and blood draws were obtained 30 minutes and 90 minutes for post-meal C-peptide and glucose estimations.
- The fasting proinsulin to C-peptide ratio (PI:C) and the percentage change in the area under the curve of C-peptide from baseline (%ΔAUC) were calculated to test the effect of vitamin D on beta-cell function.
TAKEAWAY:
- Vitamin D supplementation improved the insulin secretion capacity of beta cells, as observed by the decrease in the mean fasting PI:C ratio compared with placebo (−0.0009 vs 0.0011; P =.01).
- The reduction in %ΔAUC of C-peptide was notably slower with vitamin D than placebo (−2.8% vs −4.7%; P =.03), indicating a longer delay in the loss of C-peptide.
IN PRACTICE:
“It is exciting to know that vitamin D could protect the beta cells of the pancreas and increase the natural production of good and functional insulin in these patients. This, in turn, prolongs the honeymoon phase of type 1 diabetes and leads to reduced long-term complications of this disease,” Benjamin Udoka Nwosu, MD, Northwell Health, Division of Endocrinology, Department of Pediatrics, Cohen Children’s Medical Center, New Hyde Park, New York, the principal author, said in a press release.
SOURCE:
The study was published online in JAMA Network Open.
LIMITATIONS:
It was a single-center study.
DISCLOSURES:
The study was supported by the National Institute of Diabetes and Digestive and Kidney Diseases. The authors did not report any conflicts of interest.
A version of this article appeared on Medscape.com.
TOPLINE:
The remission period of type 1 diabetes (T1D) can be prolonged with high-dose ergocalciferol (a vitamin D analog), by preserving the function of insulin-producing beta cells in newly diagnosed patients.
METHODOLOGY:
- Beta cells may retain approximately 30%-50% function at the time of T1D diagnosis and continue producing insulin for months or years.
- Researchers conducted a secondary post hoc analysis of a randomized clinical trial looking at residual beta function and vitamin D supplementation in 36 youths (age, 10-21 years; mean age, 13.5 years; 33.3% women) with recently diagnosed T1D.
- Participants were randomly assigned to receive vitamin D (50,000 international units) or placebo every week for 2 months and then biweekly for 10 months.
- Mixed-meal tolerance tests were performed after overnight fasting at 0, 3, 6, 9, and 12 months, and blood draws were obtained 30 minutes and 90 minutes for post-meal C-peptide and glucose estimations.
- The fasting proinsulin to C-peptide ratio (PI:C) and the percentage change in the area under the curve of C-peptide from baseline (%ΔAUC) were calculated to test the effect of vitamin D on beta-cell function.
TAKEAWAY:
- Vitamin D supplementation improved the insulin secretion capacity of beta cells, as observed by the decrease in the mean fasting PI:C ratio compared with placebo (−0.0009 vs 0.0011; P =.01).
- The reduction in %ΔAUC of C-peptide was notably slower with vitamin D than placebo (−2.8% vs −4.7%; P =.03), indicating a longer delay in the loss of C-peptide.
IN PRACTICE:
“It is exciting to know that vitamin D could protect the beta cells of the pancreas and increase the natural production of good and functional insulin in these patients. This, in turn, prolongs the honeymoon phase of type 1 diabetes and leads to reduced long-term complications of this disease,” Benjamin Udoka Nwosu, MD, Northwell Health, Division of Endocrinology, Department of Pediatrics, Cohen Children’s Medical Center, New Hyde Park, New York, the principal author, said in a press release.
SOURCE:
The study was published online in JAMA Network Open.
LIMITATIONS:
It was a single-center study.
DISCLOSURES:
The study was supported by the National Institute of Diabetes and Digestive and Kidney Diseases. The authors did not report any conflicts of interest.
A version of this article appeared on Medscape.com.
Does worsening metabolic syndrome increase the risk of developing cancer?
The conditions that comprise metabolic syndrome (high blood pressure, high blood sugar, increased abdominal adiposity, and high cholesterol and triglycerides) have been associated with an increased risk of diseases, including heart disease, stroke, and type 2 diabetes, wrote Li Deng, PhD, of Capital Medical University, Beijing, China, and colleagues.
A systematic review and meta-analysis published in Diabetes Care in 2012 showed an association between the presence of metabolic syndrome and an increased risk of various cancers including liver, bladder, pancreatic, breast, and colorectal.
More recently, a 2019 study published in Diabetes showed evidence of increased risk for certain cancers (pancreatic, kidney, uterine, cervical) but no increased risk for cancer overall.
However, the reasons for this association between metabolic syndrome and cancer remain unclear, and the effect of the fluctuating nature of metabolic syndrome over time on long-term cancer risk has not been explored, the researchers wrote.
What Does New Study Add to Other Research on Metabolic Syndrome and Cancer Risk?
In the new study, published in Cancer on March 11 (doi: 10.1002/cncr.35235), 44,115 adults in China were separated into four trajectories based on metabolic syndrome scores for the period from 2006 to 2010. The scores were based on clinical evidence of metabolic syndrome, defined using the International Diabetes Federation criteria of central obesity and the presence of at least two other factors including increased triglycerides, decreased HDL cholesterol, high blood pressure (or treatment for previously diagnosed hypertension), and increased fasting plasma glucose (or previous diagnosis of type 2 diabetes).
The average age of the participants was 49 years. The four trajectories of metabolic syndrome were low-stable (10.56% of participants), moderate-low (40.84%), moderate-high (41.46%), and elevated-increasing (7.14%), based on trends from the individuals’ initial physical exams on entering the study.
Over a median follow-up period of 9.4 years (from 2010 to 2021), 2,271 cancer diagnoses were reported in the study population. Those with an elevated-increasing metabolic syndrome trajectory had 1.3 times the risk of any cancer compared with those in the low-stable group. Risk for breast cancer, endometrial cancer, kidney cancer, colorectal cancer, and liver cancer in the highest trajectory group were 2.1, 3.3, 4.5, 2.5, and 1.6 times higher, respectively, compared to the lowest group. The increased risk in the elevated-trajectory group for all cancer types persisted when the low-stable, moderate-low, and moderate-high trajectory pattern groups were combined.
The researchers also examined the impact of chronic inflammation and found that individuals with persistently high metabolic syndrome scores and concurrent chronic inflammation had the highest risks of breast, endometrial, colon, and liver cancer. However, individuals with persistently high metabolic syndrome scores and no concurrent chronic inflammation had the highest risk of kidney cancer.
What Are the Limitations of This Research?
The researchers of the current study acknowledged the lack of information on other causes of cancer, including dietary habits, hepatitis C infection, and Helicobacter pylori infection. Other limitations include the focus only on individuals from a single community of mainly middle-aged men in China that may not generalize to other populations.
Also, the metabolic syndrome trajectories did not change much over time, which may be related to the short 4-year study period.
What Is the Takeaway Message for Clinical Practice?
The results suggest that monitoring and managing metabolic syndrome could help reduce cancer risk, the researchers concluded.
“This research suggests that proactive and continuous management of metabolic syndrome may serve as an essential strategy in preventing cancer,” senior author Han-Ping Shi, MD, PhD, of Capital Medical University in Beijing, said in a press release accompanying the study.
More research is needed to assess the impact of these interventions on cancer risk, he noted. However, the data from the current study can guide future research that may lead to more targeted treatments and more effective preventive strategies, he said in a statement.
The study was supported by the National Key Research and Development Program of China. The researchers had no financial conflicts to disclose.
The conditions that comprise metabolic syndrome (high blood pressure, high blood sugar, increased abdominal adiposity, and high cholesterol and triglycerides) have been associated with an increased risk of diseases, including heart disease, stroke, and type 2 diabetes, wrote Li Deng, PhD, of Capital Medical University, Beijing, China, and colleagues.
A systematic review and meta-analysis published in Diabetes Care in 2012 showed an association between the presence of metabolic syndrome and an increased risk of various cancers including liver, bladder, pancreatic, breast, and colorectal.
More recently, a 2019 study published in Diabetes showed evidence of increased risk for certain cancers (pancreatic, kidney, uterine, cervical) but no increased risk for cancer overall.
However, the reasons for this association between metabolic syndrome and cancer remain unclear, and the effect of the fluctuating nature of metabolic syndrome over time on long-term cancer risk has not been explored, the researchers wrote.
What Does New Study Add to Other Research on Metabolic Syndrome and Cancer Risk?
In the new study, published in Cancer on March 11 (doi: 10.1002/cncr.35235), 44,115 adults in China were separated into four trajectories based on metabolic syndrome scores for the period from 2006 to 2010. The scores were based on clinical evidence of metabolic syndrome, defined using the International Diabetes Federation criteria of central obesity and the presence of at least two other factors including increased triglycerides, decreased HDL cholesterol, high blood pressure (or treatment for previously diagnosed hypertension), and increased fasting plasma glucose (or previous diagnosis of type 2 diabetes).
The average age of the participants was 49 years. The four trajectories of metabolic syndrome were low-stable (10.56% of participants), moderate-low (40.84%), moderate-high (41.46%), and elevated-increasing (7.14%), based on trends from the individuals’ initial physical exams on entering the study.
Over a median follow-up period of 9.4 years (from 2010 to 2021), 2,271 cancer diagnoses were reported in the study population. Those with an elevated-increasing metabolic syndrome trajectory had 1.3 times the risk of any cancer compared with those in the low-stable group. Risk for breast cancer, endometrial cancer, kidney cancer, colorectal cancer, and liver cancer in the highest trajectory group were 2.1, 3.3, 4.5, 2.5, and 1.6 times higher, respectively, compared to the lowest group. The increased risk in the elevated-trajectory group for all cancer types persisted when the low-stable, moderate-low, and moderate-high trajectory pattern groups were combined.
The researchers also examined the impact of chronic inflammation and found that individuals with persistently high metabolic syndrome scores and concurrent chronic inflammation had the highest risks of breast, endometrial, colon, and liver cancer. However, individuals with persistently high metabolic syndrome scores and no concurrent chronic inflammation had the highest risk of kidney cancer.
What Are the Limitations of This Research?
The researchers of the current study acknowledged the lack of information on other causes of cancer, including dietary habits, hepatitis C infection, and Helicobacter pylori infection. Other limitations include the focus only on individuals from a single community of mainly middle-aged men in China that may not generalize to other populations.
Also, the metabolic syndrome trajectories did not change much over time, which may be related to the short 4-year study period.
What Is the Takeaway Message for Clinical Practice?
The results suggest that monitoring and managing metabolic syndrome could help reduce cancer risk, the researchers concluded.
“This research suggests that proactive and continuous management of metabolic syndrome may serve as an essential strategy in preventing cancer,” senior author Han-Ping Shi, MD, PhD, of Capital Medical University in Beijing, said in a press release accompanying the study.
More research is needed to assess the impact of these interventions on cancer risk, he noted. However, the data from the current study can guide future research that may lead to more targeted treatments and more effective preventive strategies, he said in a statement.
The study was supported by the National Key Research and Development Program of China. The researchers had no financial conflicts to disclose.
The conditions that comprise metabolic syndrome (high blood pressure, high blood sugar, increased abdominal adiposity, and high cholesterol and triglycerides) have been associated with an increased risk of diseases, including heart disease, stroke, and type 2 diabetes, wrote Li Deng, PhD, of Capital Medical University, Beijing, China, and colleagues.
A systematic review and meta-analysis published in Diabetes Care in 2012 showed an association between the presence of metabolic syndrome and an increased risk of various cancers including liver, bladder, pancreatic, breast, and colorectal.
More recently, a 2019 study published in Diabetes showed evidence of increased risk for certain cancers (pancreatic, kidney, uterine, cervical) but no increased risk for cancer overall.
However, the reasons for this association between metabolic syndrome and cancer remain unclear, and the effect of the fluctuating nature of metabolic syndrome over time on long-term cancer risk has not been explored, the researchers wrote.
What Does New Study Add to Other Research on Metabolic Syndrome and Cancer Risk?
In the new study, published in Cancer on March 11 (doi: 10.1002/cncr.35235), 44,115 adults in China were separated into four trajectories based on metabolic syndrome scores for the period from 2006 to 2010. The scores were based on clinical evidence of metabolic syndrome, defined using the International Diabetes Federation criteria of central obesity and the presence of at least two other factors including increased triglycerides, decreased HDL cholesterol, high blood pressure (or treatment for previously diagnosed hypertension), and increased fasting plasma glucose (or previous diagnosis of type 2 diabetes).
The average age of the participants was 49 years. The four trajectories of metabolic syndrome were low-stable (10.56% of participants), moderate-low (40.84%), moderate-high (41.46%), and elevated-increasing (7.14%), based on trends from the individuals’ initial physical exams on entering the study.
Over a median follow-up period of 9.4 years (from 2010 to 2021), 2,271 cancer diagnoses were reported in the study population. Those with an elevated-increasing metabolic syndrome trajectory had 1.3 times the risk of any cancer compared with those in the low-stable group. Risk for breast cancer, endometrial cancer, kidney cancer, colorectal cancer, and liver cancer in the highest trajectory group were 2.1, 3.3, 4.5, 2.5, and 1.6 times higher, respectively, compared to the lowest group. The increased risk in the elevated-trajectory group for all cancer types persisted when the low-stable, moderate-low, and moderate-high trajectory pattern groups were combined.
The researchers also examined the impact of chronic inflammation and found that individuals with persistently high metabolic syndrome scores and concurrent chronic inflammation had the highest risks of breast, endometrial, colon, and liver cancer. However, individuals with persistently high metabolic syndrome scores and no concurrent chronic inflammation had the highest risk of kidney cancer.
What Are the Limitations of This Research?
The researchers of the current study acknowledged the lack of information on other causes of cancer, including dietary habits, hepatitis C infection, and Helicobacter pylori infection. Other limitations include the focus only on individuals from a single community of mainly middle-aged men in China that may not generalize to other populations.
Also, the metabolic syndrome trajectories did not change much over time, which may be related to the short 4-year study period.
What Is the Takeaway Message for Clinical Practice?
The results suggest that monitoring and managing metabolic syndrome could help reduce cancer risk, the researchers concluded.
“This research suggests that proactive and continuous management of metabolic syndrome may serve as an essential strategy in preventing cancer,” senior author Han-Ping Shi, MD, PhD, of Capital Medical University in Beijing, said in a press release accompanying the study.
More research is needed to assess the impact of these interventions on cancer risk, he noted. However, the data from the current study can guide future research that may lead to more targeted treatments and more effective preventive strategies, he said in a statement.
The study was supported by the National Key Research and Development Program of China. The researchers had no financial conflicts to disclose.
FROM CANCER
Do Organophosphate Esters Increase Thyroid Disease Risk?
TOPLINE:
, bis(2-chloroethyl) phosphate (BCEP) being the main contributor.
METHODOLOGY:
- Prior studies have reported that OPEs — used in building materials, electronic products, furniture, and textiles — may interfere with thyroid function, hinting at a possible association of OPEs with thyroid disease.
- Researchers assessed the association between OPE exposure and the risk for thyroid disease using data from the 2011-2014 US National Health and Nutrition Examination Survey cycle.
- They included 2449 participants (mean age, 46 years; half of whom were women) who had complete values for seven OPE metabolites through urinalysis and completed questionnaires regarding the presence of thyroid disease.
- The seven OPE metabolites assessed in this study were diphenyl phosphate (DPHP), bis(1,3-dichloro-2-propyl) phosphate, bis(1-chloro-2-propyl) phosphate, BCEP, dibutyl phosphate, dibenzyl phosphate, and 2,3,4,5-tetrabromobenzoic acid.
- Several mixed exposure models were used to investigate the associations between the risk for thyroid disease and exposure to individual and mixed OPEs.
TAKEAWAY:
- A history of thyroid disease was self-reported by 228 participants.
- In one model, the risk for thyroid disease was 57% higher in people in the highest vs the lowest tertile of BCEP exposure (P = .005).
- A newer method confirmed the positive association between exposure to mixed OPE metabolites and a higher risk for thyroid disease (odds ratio, 1.03; P = .013), with BCEP (65%) being the main contributing factor, followed by DPHP (35%).
- A model from another new method showed a J-shaped relationship between the risk for thyroid disease and increasing levels of BCEP exposure, in which the risk first dropped but then rose with increasing exposure.
IN PRACTICE:
“The three models in our study provided similar results, with exposure to mixed OPEs having a tendency to increase the risk of thyroid disease and pointing to BCEP as the most significant compound responsible for this trend,” wrote the authors.
SOURCE:
This study was led by Yuxin Lin, from the Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, China, and published online in Frontiers in Endocrinology.
LIMITATIONS:
The cross-sectional design cannot establish a causal relationship between OPE exposure and thyroid disease. The study used unweighted data, which could have limited the generalizability of the findings. Moreover, urine sample measurements were performed only once.
DISCLOSURES:
The study was supported by the Fujian Natural Science Foundation Program and the Scientific Research Program of High-level Talents of Fujian Medical University. The authors declared no potential conflicts of interest.
A version of this article first appeared on Medscape.com.
TOPLINE:
, bis(2-chloroethyl) phosphate (BCEP) being the main contributor.
METHODOLOGY:
- Prior studies have reported that OPEs — used in building materials, electronic products, furniture, and textiles — may interfere with thyroid function, hinting at a possible association of OPEs with thyroid disease.
- Researchers assessed the association between OPE exposure and the risk for thyroid disease using data from the 2011-2014 US National Health and Nutrition Examination Survey cycle.
- They included 2449 participants (mean age, 46 years; half of whom were women) who had complete values for seven OPE metabolites through urinalysis and completed questionnaires regarding the presence of thyroid disease.
- The seven OPE metabolites assessed in this study were diphenyl phosphate (DPHP), bis(1,3-dichloro-2-propyl) phosphate, bis(1-chloro-2-propyl) phosphate, BCEP, dibutyl phosphate, dibenzyl phosphate, and 2,3,4,5-tetrabromobenzoic acid.
- Several mixed exposure models were used to investigate the associations between the risk for thyroid disease and exposure to individual and mixed OPEs.
TAKEAWAY:
- A history of thyroid disease was self-reported by 228 participants.
- In one model, the risk for thyroid disease was 57% higher in people in the highest vs the lowest tertile of BCEP exposure (P = .005).
- A newer method confirmed the positive association between exposure to mixed OPE metabolites and a higher risk for thyroid disease (odds ratio, 1.03; P = .013), with BCEP (65%) being the main contributing factor, followed by DPHP (35%).
- A model from another new method showed a J-shaped relationship between the risk for thyroid disease and increasing levels of BCEP exposure, in which the risk first dropped but then rose with increasing exposure.
IN PRACTICE:
“The three models in our study provided similar results, with exposure to mixed OPEs having a tendency to increase the risk of thyroid disease and pointing to BCEP as the most significant compound responsible for this trend,” wrote the authors.
SOURCE:
This study was led by Yuxin Lin, from the Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, China, and published online in Frontiers in Endocrinology.
LIMITATIONS:
The cross-sectional design cannot establish a causal relationship between OPE exposure and thyroid disease. The study used unweighted data, which could have limited the generalizability of the findings. Moreover, urine sample measurements were performed only once.
DISCLOSURES:
The study was supported by the Fujian Natural Science Foundation Program and the Scientific Research Program of High-level Talents of Fujian Medical University. The authors declared no potential conflicts of interest.
A version of this article first appeared on Medscape.com.
TOPLINE:
, bis(2-chloroethyl) phosphate (BCEP) being the main contributor.
METHODOLOGY:
- Prior studies have reported that OPEs — used in building materials, electronic products, furniture, and textiles — may interfere with thyroid function, hinting at a possible association of OPEs with thyroid disease.
- Researchers assessed the association between OPE exposure and the risk for thyroid disease using data from the 2011-2014 US National Health and Nutrition Examination Survey cycle.
- They included 2449 participants (mean age, 46 years; half of whom were women) who had complete values for seven OPE metabolites through urinalysis and completed questionnaires regarding the presence of thyroid disease.
- The seven OPE metabolites assessed in this study were diphenyl phosphate (DPHP), bis(1,3-dichloro-2-propyl) phosphate, bis(1-chloro-2-propyl) phosphate, BCEP, dibutyl phosphate, dibenzyl phosphate, and 2,3,4,5-tetrabromobenzoic acid.
- Several mixed exposure models were used to investigate the associations between the risk for thyroid disease and exposure to individual and mixed OPEs.
TAKEAWAY:
- A history of thyroid disease was self-reported by 228 participants.
- In one model, the risk for thyroid disease was 57% higher in people in the highest vs the lowest tertile of BCEP exposure (P = .005).
- A newer method confirmed the positive association between exposure to mixed OPE metabolites and a higher risk for thyroid disease (odds ratio, 1.03; P = .013), with BCEP (65%) being the main contributing factor, followed by DPHP (35%).
- A model from another new method showed a J-shaped relationship between the risk for thyroid disease and increasing levels of BCEP exposure, in which the risk first dropped but then rose with increasing exposure.
IN PRACTICE:
“The three models in our study provided similar results, with exposure to mixed OPEs having a tendency to increase the risk of thyroid disease and pointing to BCEP as the most significant compound responsible for this trend,” wrote the authors.
SOURCE:
This study was led by Yuxin Lin, from the Department of Epidemiology and Health Statistics, School of Public Health, Fujian Medical University, Fuzhou, China, and published online in Frontiers in Endocrinology.
LIMITATIONS:
The cross-sectional design cannot establish a causal relationship between OPE exposure and thyroid disease. The study used unweighted data, which could have limited the generalizability of the findings. Moreover, urine sample measurements were performed only once.
DISCLOSURES:
The study was supported by the Fujian Natural Science Foundation Program and the Scientific Research Program of High-level Talents of Fujian Medical University. The authors declared no potential conflicts of interest.
A version of this article first appeared on Medscape.com.
First Denosumab Biosimilar Approved in Two Different Formulations
The US Food and Drug Administration (FDA) has approved the first biosimilar to denosumab, denosumab-bddz (Wyost/Jubbonti).
The biosimilar was also granted interchangeability status, which allows pharmacists to substitute the biosimilar for the reference product without involving the prescribing clinician (according to state law). Sandoz announced the approval on March 5, 2024. The lower dosage of denosumab-bddz, marketed as Jubbonti, was also approved by Health Canada in February.
The FDA approval “is based on robust clinical studies and accompanied by labeling with safety warnings,” according to the press release. Like the reference products Prolia and Xgeva, denosumab-bddz is approved for two indications at separate doses.
Wyost (120-mg/1.7-mL injection) is approved to:
- Prevent skeletal-related events in patients with multiple myeloma and in patients with bone metastases from solid tumors
- Treat adults and skeletally mature adolescents with giant cell tumor of bone that is unresectable or where surgical resection is likely to result in severe morbidity
- Treat hypercalcemia of cancer that is refractory to bisphosphonate therapy
Jubbonti (60-mg/1-mL injection) is approved to:
- Treat postmenopausal women with osteoporosis who are at high risk for fracture
- Increase bone mass in men with osteoporosis who are at high risk for fracture
- Treat glucocorticoid-induced osteoporosis in men and women who are at high risk for fracture
- Increase bone mass in men who are at high risk for fracture who are receiving androgen deprivation therapy for nonmetastatic prostate cancer
- Increase bone mass in women who are at high risk for fracture who are receiving adjuvant aromatase inhibitor therapy for breast cancer.
Both doses are contraindicated for hypocalcemia and known clinically significant hypersensitivity to denosumab products. Exposure to denosumab products during pregnancy can cause fetal harm, so women of reproductive potential should be advised to use effective contraception during therapy and for at least 5 months after the last dose of denosumab-bddz.
Sandoz did not provide information on US launch details, citing “ongoing patent litigation around these products.”
A version of this article appeared on Medscape.com.
The US Food and Drug Administration (FDA) has approved the first biosimilar to denosumab, denosumab-bddz (Wyost/Jubbonti).
The biosimilar was also granted interchangeability status, which allows pharmacists to substitute the biosimilar for the reference product without involving the prescribing clinician (according to state law). Sandoz announced the approval on March 5, 2024. The lower dosage of denosumab-bddz, marketed as Jubbonti, was also approved by Health Canada in February.
The FDA approval “is based on robust clinical studies and accompanied by labeling with safety warnings,” according to the press release. Like the reference products Prolia and Xgeva, denosumab-bddz is approved for two indications at separate doses.
Wyost (120-mg/1.7-mL injection) is approved to:
- Prevent skeletal-related events in patients with multiple myeloma and in patients with bone metastases from solid tumors
- Treat adults and skeletally mature adolescents with giant cell tumor of bone that is unresectable or where surgical resection is likely to result in severe morbidity
- Treat hypercalcemia of cancer that is refractory to bisphosphonate therapy
Jubbonti (60-mg/1-mL injection) is approved to:
- Treat postmenopausal women with osteoporosis who are at high risk for fracture
- Increase bone mass in men with osteoporosis who are at high risk for fracture
- Treat glucocorticoid-induced osteoporosis in men and women who are at high risk for fracture
- Increase bone mass in men who are at high risk for fracture who are receiving androgen deprivation therapy for nonmetastatic prostate cancer
- Increase bone mass in women who are at high risk for fracture who are receiving adjuvant aromatase inhibitor therapy for breast cancer.
Both doses are contraindicated for hypocalcemia and known clinically significant hypersensitivity to denosumab products. Exposure to denosumab products during pregnancy can cause fetal harm, so women of reproductive potential should be advised to use effective contraception during therapy and for at least 5 months after the last dose of denosumab-bddz.
Sandoz did not provide information on US launch details, citing “ongoing patent litigation around these products.”
A version of this article appeared on Medscape.com.
The US Food and Drug Administration (FDA) has approved the first biosimilar to denosumab, denosumab-bddz (Wyost/Jubbonti).
The biosimilar was also granted interchangeability status, which allows pharmacists to substitute the biosimilar for the reference product without involving the prescribing clinician (according to state law). Sandoz announced the approval on March 5, 2024. The lower dosage of denosumab-bddz, marketed as Jubbonti, was also approved by Health Canada in February.
The FDA approval “is based on robust clinical studies and accompanied by labeling with safety warnings,” according to the press release. Like the reference products Prolia and Xgeva, denosumab-bddz is approved for two indications at separate doses.
Wyost (120-mg/1.7-mL injection) is approved to:
- Prevent skeletal-related events in patients with multiple myeloma and in patients with bone metastases from solid tumors
- Treat adults and skeletally mature adolescents with giant cell tumor of bone that is unresectable or where surgical resection is likely to result in severe morbidity
- Treat hypercalcemia of cancer that is refractory to bisphosphonate therapy
Jubbonti (60-mg/1-mL injection) is approved to:
- Treat postmenopausal women with osteoporosis who are at high risk for fracture
- Increase bone mass in men with osteoporosis who are at high risk for fracture
- Treat glucocorticoid-induced osteoporosis in men and women who are at high risk for fracture
- Increase bone mass in men who are at high risk for fracture who are receiving androgen deprivation therapy for nonmetastatic prostate cancer
- Increase bone mass in women who are at high risk for fracture who are receiving adjuvant aromatase inhibitor therapy for breast cancer.
Both doses are contraindicated for hypocalcemia and known clinically significant hypersensitivity to denosumab products. Exposure to denosumab products during pregnancy can cause fetal harm, so women of reproductive potential should be advised to use effective contraception during therapy and for at least 5 months after the last dose of denosumab-bddz.
Sandoz did not provide information on US launch details, citing “ongoing patent litigation around these products.”
A version of this article appeared on Medscape.com.