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Food timing may shape how T cells respond to infection and therapy

Short-term nutritional state can reshape T cell metabolism, with post-meal lipid metabolism enhancing T cell metabolic capacity, cytokine production, and persistence after activation. The study identifies triglyceride-rich chylomicrons as key drivers of this effect, suggesting nutritional timing may matter for immune monitoring, vaccination research, and cell-therapy manufacturing.

30 Apr 2026

New genetic risk report reveals hidden heart disease risk before symptoms appear

Researchers developed and externally validated integrated polygenic risk scores for eight cardiovascular conditions using large U.S.-based biobank data. The clinically orderable report may help identify inherited cardiovascular risk that traditional clinical markers can miss, although broader prospective validation is still needed.

30 Apr 2026

AgentClinic puts medical AI through a more realistic diagnostic test

AgentClinic is a multimodal benchmark that tests clinical AI agents in simulated, dialogue-driven diagnostic settings rather than static medical question-answer formats. The study found that model performance varied sharply by tool use, language, bias, image handling, and patient-agent interactions, highlighting the need for more realistic AI evaluation before clinical deployment.

30 Apr 2026

New screening tool predicts health risks for people living with obesity

A simple tool, developed by researchers at Queen Mary University of London and the Berlin Institute of Health at Charité, could help identify which people living with obesity or overweight are most likely to develop serious obesity-related conditions such as type 2 diabetes and heart disease.

30 Apr 2026

Pathogens drive inflammation by reprogramming host cell metabolic processes

An intestinal pathogen reshapes the gut environment to fuel its own colonization and cause diseases, a multi-institutional team including researchers at Vanderbilt Health has discovered.

30 Apr 2026

Sickness behavior may be a coordinated whole organism immune strategy

Symptoms such as fatigue, loss of appetite, altered sleep, and social withdrawal are often treated as inconvenient side effects of infection.

30 Apr 2026

Liquid biopsy predicts immune response in high-risk breast cancer patients

Immunotherapy has become a standard of care in treating high-risk, early-stage breast cancers, yet it has had limited success in shrinking tumors.

30 Apr 2026

Degeneration in two brain regions causes severe narcolepsy symptoms

For nearly 25 years, scientists believed they knew what caused the most severe form of narcolepsy. A new UCLA Health study now suggests they were only half correct.

30 Apr 2026

Scientists discover a potential new way to slow ALS disease progression

Amyotrophic lateral sclerosis (ALS) is a neurodegenerative disease that causes the progressive loss of motor neurons, which in most cases leads to respiratory failure within three to five years after diagnosis.

30 Apr 2026

Inflammation from leaking mitochondria drives aggressive pancreatic cancer growth

Scientists at The Wistar Institute and clinical researchers from ChristianaCare's Helen F. Graham Cancer Center & Research Institute have discovered a vulnerability in pancreatic cancer that could be targeted as a potential therapy.

30 Apr 2026

UCLA researchers build programmable artificial organelles using RNA

Just as the human body relies on organs such as the heart or liver for essential functions, cells depend on their own tiny organs, or organelles, to carry out vital tasks, including transporting nutrients, removing waste and regulating genetic activity.

30 Apr 2026

New spinal cord interface restores bladder control and sensation

Approximately 308,000 people in the United States live with spinal cord injury. Nearly all lose bladder control. And yet the vast majority of research and engineering attention in neurotech has poured into motor restoration-making paralyzed limbs move again.

30 Apr 2026

Glucose acts as a metabolic signal for myelin development

Researchers at the Advanced Science Research Center at the CUNY Graduate Center (CUNY ASRC) have uncovered a surprising link between low brain sugar levels and the development of myelin - the protective coating that allows nerve cells to communicate rapidly and efficiently.

30 Apr 2026

Silencing a cellular stress signal could extend human lifespan

Silencing a major cellular stress signal could be the key to a longer life, according to new University of Sheffield research.

30 Apr 2026

New research shows weight loss is possible without GLP-1

Glucagon-like peptide-1 agonism - GLP-1, common in obesity medicines - is not essential to weight management, according to preclinical research led by Richard DiMarchi and Matthias Tschöp, with funding from their startup company Bluewater Biosciences.

30 Apr 2026

Routine blood tests years before conception may predict pregnancy risks

Small abnormalities in blood sugar, blood lipids and inflammation several years before pregnancy are linked to an increased risk of high blood pressure during pregnancy and pre-eclampsia, according to a new study from Karolinska Institutet published in JAMA Network Open.

30 Apr 2026

AI and CRISPR technologies drive proactive health monitoring

JMIR Publications today featured two new stories in its News and Perspectives section, highlighting a shift toward proactive, tech-integrated health monitoring.

30 Apr 2026

Study suggests birth weight affects kidney resilience in ultramarathon athletes

A new study is raising questions about whether human endurance has biological limits shaped long before adulthood-possibly beginning at birth.

30 Apr 2026

Baby teeth show when metal exposure may affect brain development

The study identifies critical windows of metal exposure via baby teeth, revealing impacts on brain development and behavior in children and adolescents.

30 Apr 2026

From killers to strategists: CAR T cells enter their multifunctional era

A review of 1,801 registered CAR T clinical trials shows that multifunctional designs now account for 533 trials and 33% of new CAR T products submitted for clinical testing in 2025. The field is shifting toward multitargeted, safety-controlled, cytokine-secreting, and checkpoint-modulating CAR T cells, but manufacturing, regulation, and limited clinical outcome data remain key barriers.

30 Apr 2026