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Efficacy and safety of semaglutide according to frailty status

A recent study found semaglutide to be effective in improving various clinical outcomes in patients with frailty, with greater benefits observed in those with higher frailty indices. The medication demonstrated a positive impact on health-related quality of life, highlighting its potential as a treatment option for this population.

SourceJAMA Network·JournalJAMA Cardiology·DateSep 16, 2026

Advanced wastewater treatment may create hidden endocrine risks, study finds

Researchers found that ultraviolet irradiation and ozonation increased anti-androgenic activity in treated wastewater, exceeding an effect-based risk threshold. The study suggests balancing pollutant removal efficiency with assessment of transformation products' combined biological effects.

SourceShenyang Agricultural University Collaborative Journals·JournalEnergy & Environment Nexus·TypeExperimental study·DateAug 13, 2026

Patient experiences with GLP-1 receptor agonists

Patients described GLP-1 RA therapy as a facilitator of lifestyle change, highlighting the need for standardized guidelines on patient education and clinical support. The quality of care was highly variable, leading to potential expectation management issues around adverse effects and long-term management.

SourceJAMA Network·JournalJAMA Network Open·DateJun 5, 2026

US trends in long-term opioid therapy

Long-term opioid therapy prescription rates declined in the US from 2015 to 2023, despite a growing population of older adults receiving these treatments. Approximately 4-5 million patients were prescribed long-term opioids in 2023, with Medicare covering a larger proportion, raising concerns about safety.

SourceJAMA Network·JournalJAMA·DateApr 8, 2026

Novel study shows physical activity reshapes neural connectivity and makes the brain more resilient after childhood trauma

Research in Biological Psychiatry: Cognitive Neuroscience and Neuroimaging reveals that lifetime physical activity can reshape neural connectivity, strengthening the brain's internal communication and optimizing its response to stress. The study challenges traditional deficit-focused views of adversity, offering a more dynamic and hope...

SourceElsevier·TypeImaging analysis·DateMar 17, 2026

Community water fluoridation and birth outcomes

A large cohort study found no association between community water fluoridation and adverse birth outcomes, providing reassurance about its safety during pregnancy. The study highlights the importance of rigorous causal designs in evaluating public health interventions.

SourceJAMA Network·JournalJAMA Network Open·DateJan 20, 2026

No clear evidence that cannabis-based medicines relieve chronic nerve pain

An updated Cochrane review of 21 clinical trials involving over 2,100 adults found no high-quality evidence that cannabis-based medicines reduce neuropathic pain more than placebo. Small improvements were reported by patients using products with both THC and CBD, but these changes were not clinically meaningful.

SourceCochrane·JournalCochrane Database of Systematic Reviews·TypeSystematic review·DateJan 18, 2026

Semaglutide, tirzepatide, and dulaglutide have similar gastrointestinal safety profiles in clinical settings

A new observational study found that semaglutide, tirzepatide, and dulaglutide have similar gastrointestinal safety profiles among patients with type 2 diabetes. The medications were assessed in a large database of adults with T2D, who underwent treatment with these GLP-1 RA medications between 2019 and 2024.

SourceAmerican College of Physicians·JournalAnnals of Internal Medicine·TypeNews article·DateNov 3, 2025

Ocular adverse events with semaglutide

A study found no association between semaglutide treatment and diabetic retinopathy, but suggested a potential link to nonarteritic anterior ischemic optic neuropathy. Further research with larger sample sizes is needed to clarify this risk.

SourceJAMA Network·JournalJAMA Ophthalmology·DateAug 14, 2025

Safety of JN.1-updated mRNA COVID-19 vaccines

A nationwide cohort study of 1 million adults found no increased risk of 29 adverse events after vaccination with the updated COVID-19 mRNA vaccine containing the SARS-CoV-2 Omicron JN.1 lineage. The study provides reassuring safety data on the new vaccine, which has been widely adopted in response to the Omicron variant

SourceJAMA Network·JournalJAMA Network Open·DateJul 28, 2025

Acupuncture for nocturia in survivors of prostate cancer

Acupuncture was found to be an effective treatment for nocturia in survivors of prostate cancer, reducing symptoms comparable to other medications while causing fewer side effects. The study suggests acupuncture may offer a new hope for managing this common issue affecting half of prostate cancer survivors.

SourceJAMA Network·JournalJAMA Oncology·DateMay 29, 2025