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Scientists traced a hidden immune route that may worsen tau-linked brain damage

In a mouse model of tauopathy, conventional type 1 dendritic cells (cDC1s) cross-presented brain-derived antigens in deep cervical lymph nodes, priming CD8+ T cells that accumulated in the brain and promoted neurodegeneration. Disrupting cDC1s or their cross-presentation activity reduced CD8+ T-cell infiltration and protected against neuronal loss, while human primary tauopathy samples also showed increased brain CD8+ T cells, although cDC1 involvement in humans remains unconfirmed.

6 Sep 2026

Genetic COPD risk emerges early with higher air pollution

Chronic obstructive pulmonary disease (COPD) is a serious, incurable lung disease that is common in older people.

6 Sep 2026

New prostate cancer screening advances improve early detection

Did you know that about 1 in 8 men will be diagnosed with prostate cancer during their lifetime? According to the American Cancer Society, it remains the second-leading cause of cancer death among American men.

6 Sep 2026

Autoimmune diseases form distinct genetic clusters, study finds

Different autoimmune diseases often share genetic risk factors, but not through a single common genetic vulnerability.

4 Sep 2026

Gut bacterial metabolite linked to inflammation in liver disease

Researchers have identified a link between specific activities in gut bacteria and the liver disease PSC.

4 Sep 2026

Ancient parchment reveals historical evolution of destructive sheeppox virus

Some of Europe's most well-known historic manuscripts, including the York Gospels, have proven to be biological time capsules for uncovering the 3,500-year history of the sheeppox virus (SPPV).

4 Sep 2026

Research reveals how natural enzymes transcribe expanded eight-letter genetic code

All known life on earth utilizes the same genetic alphabet, consisting of four letters. Now, researchers at University of California San Diego have demonstrated that one of biology's most essential enzymes can accurately read and transcribe an expanded, eight-letter genetic alphabet.

4 Sep 2026

Oral drug offers promising advance for children with achondroplasia

A phase 3 trial is showing "a potentially giant step forward," in treating children with achondroplasia, UCLA Health's Dr. Isidro B. Salusky wrote in a new editorial published in the New England Journal of Medicine (NEJM).

4 Sep 2026

Pig kidney xenotransplantation offers a bridge for patients awaiting human donor kidneys

In January 2026, Tim Andrews, who had received a genetically edited pig kidney in January 2025, became the recipient of a human kidney.

3 Sep 2026

What your genes can, and cannot, tell us about your personality

A meta-analysis of 46 cohorts involving 611,037 to 1.14 million participants identified 1,260 lead genetic variants associated with the Big Five personality traits, including 824 in previously unlinked genomic regions. The associations were broadly consistent across cohorts and measurement contexts, while polygenic analyses linked personality-related genetics to health, behavior, psychopathology, and life outcomes, although effects were modest and could not predict individual behavior.

3 Sep 2026

Semaglutide extended lifespan in older female mice, but that was not the only finding

Late-life semaglutide treatment slowed age-related physiological decline, attenuated multiple molecular hallmarks of aging, and extended median lifespan from 742 to 834 days in aged female mice. The drug reproduced many effects of calorie restriction while providing additional benefits in exploratory behavior, spatial memory, and glucose control, suggesting that some effects extend beyond reduced calorie intake alone.

3 Sep 2026

Coffee, tea and dementia risk: Why the amount you drink could matter

A targeted perspective synthesizes epidemiological and mechanistic evidence examining how caffeine consumption during midlife may influence dementia risk later in life. The authors highlight potential roles for dose, age, CYP1A2 genotype, adenosine signaling and cultural drinking practices, while stressing that current observational evidence cannot establish causality.

3 Sep 2026

Alpha-1 antitrypsin identified as potential target for preventing spontaneous preterm birth

Researchers at the University of Oulu have identified alpha-1 antitrypsin as a potential target for preventing spontaneous preterm birth.

3 Sep 2026

Microscopic peptide droplets reduce colorectal tumor growth in mice

Scientists from Nanyang Technological University, Singapore (NTU Singapore) have developed microscopic peptide droplets that deliver large amounts of gene-silencing molecules into cancer and immune cells, reducing the growth of hard-to-treat colorectal tumours by about 67 per cent in mice.

3 Sep 2026

Cerebral palsy may be a trait rather than a disease

Historically, cerebral palsy (CP) was linked largely to events at birth, including prematurity or temporary loss of oxygen to the brain, but research over the past decade has suggested that genetic factors contribute to CP in many children.

3 Sep 2026

Study links popular weight-loss drugs to increased male hair loss

Men already at risk genetically for the most common form of hair loss have a 7 percent added risk of losing their hair if they use drugs like Ozempic, Wegovy, and Zepbound for type 2 diabetes and obesity, a new study shows.

3 Sep 2026

Too little or too much testosterone may matter for heart rhythm

A review of clinical trials, observational studies, genetic analyses, and mechanistic research suggests that atrial fibrillation risk may follow a U-shaped relationship with testosterone, increasing at both low and high levels. Evidence on testosterone replacement therapy remains mixed, with researchers calling for prospective studies to determine whether mid-physiological testosterone targets and treatment formulation influence AF risk.

2 Sep 2026