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JAMA Network


Mirtazapine for methamphetamine use disorder

In this randomized clinical trial, mirtazapine effectively reduced methamphetamine use in adults with methamphetamine use disorder. The study's findings have important implications for the treatment of this condition, which currently lacks approved pharmacotherapies.

SourceJAMA Network·JournalJAMA Psychiatry·DateApr 1, 2026

Lead-attributable cardiovascular disease burden

A longitudinal analysis of 42,000 participants found higher bone lead levels associated with significantly increased cardiovascular disease mortality risk. The study highlights the urgent need for strengthened surveillance, regulation, and remediation to reduce the lead-attributable burden worldwide.

SourceJAMA Network·JournalJAMA·DateMar 30, 2026

Pregnancy-associated spontaneous coronary artery dissection

The study found that women with pregnancy-associated spontaneous coronary artery dissection (P-SCAD) have a higher risk of cardiovascular events, including dissections and aneurysms. Women with P-SCAD also experienced less recovery in left ventricular ejection fraction compared to those without P-SCAD.

SourceJAMA Network·JournalJAMA Cardiology·DateMar 29, 2026

Lasting income costs of mental and physical illness

A study estimated income losses from individual perspectives in Denmark from 2000 to 2023 after hospital diagnoses of depression, alcohol use disorder, stroke, and breast cancer. The researchers found that income losses were largest for mental disorders, with average losses growing over time, particularly among younger individuals.

SourceJAMA Network·JournalJAMA Health Forum·DateMar 27, 2026

Prospective evidence on AI−assisted melanoma diagnostics

AI systems demonstrate comparable diagnostic accuracy to dermatologists for melanoma detection, potentially enhancing performance when used as a decision-support tool. However, the risk of bias and limited generalizability of current studies highlight the need for broader validation in unselected patient populations.

SourceJAMA Network·JournalJAMA Dermatology·DateMar 25, 2026

Surgeons sponsored for H-1B visas in the US

The number of US surgeons sponsored for H-1B visas increased to over 650 in FY2024, with a disproportionate representation in rural and impoverished counties. This trend highlights the need for increased diversity and inclusion in the surgical workforce.

SourceJAMA Network·JournalJAMA Surgery·DateMar 25, 2026

Childhood mortality by parental cause of death

A statewide cohort study found childhood mortality is significantly higher among children bereaved by parental drug overdose, homicide, and suicide. Parental homicide was associated with the highest risk of mortality in children, highlighting the need for research into potential explanations such as family restructuring and mental health.

SourceJAMA Network·JournalJAMA Network Open·DateMar 23, 2026

Colorectal cancer risk with negative colonoscopy or nonadherence after positive fecal occult blood test screening

A decrease in colorectal cancer incidence was observed among individuals with negative screening colonoscopy results, particularly men, suggesting risk-based follow-up strategies. Nonadherence to scheduled colonoscopies increased the risk of CRC, highlighting the need for targeted interventions to improve early detection.

SourceJAMA Network·JournalJAMA Network Open·DateMar 19, 2026

Meat consumption and cognitive health by APOE genotype

A new study published in JAMA Network Open suggests that high meat consumption is associated with better cognitive trajectories and lower dementia risk among individuals with the APOE 34/44 genotype. The finding contradicts previous expectations, highlighting potential clinical and public health relevance for this population.

SourceJAMA Network·JournalJAMA Network Open·DateMar 19, 2026