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Scientists resurrected antimicrobial peptides from mammals that lived millions of years ago and found that some were more potent against drug-resistant bacteria than modern human versions. These evolutionary relics could provide new clues for ...

Strengthening the body's natural daily rhythms helped mice recover after stroke by improving the brain's waste-clearing system and reducing lingering inflammation. The approach worked even when treatment began three days after the stroke, suggesting ...

Measurements of ancient light from the cosmic microwave background suggest that the universe is remarkably flat. But that does not prove it is infinite, because the observable cosmos could be only a small patch of a much larger curved universe. Space ...

Scientists found that immune cells contributing to Alzheimer's-related brain damage may be activated in lymph nodes outside the brain before traveling into the nervous system. Blocking this pathway in mice dramatically reduced neurodegeneration and . ...

A large health-record analysis found that glucosamine use was associated with a 25% higher likelihood of mild cognitive impairment progressing to dementia. Lab experiments suggest the popular joint supplement may intensify an abnormal sugar-tagging . ...

Direct oral anticoagulants cut the risk of serious clinical events by 69% in atrial fibrillation patients with an intermediate risk of stroke, according to the randomized SINGLE-AF trial. The benefit was driven mainly by fewer ischemic strokes, with ...

A single dose of an experimental CRISPR therapy cut LDL cholesterol and triglycerides by about half in patients with difficult-to-treat lipid disorders. The reductions were still present one year later, with the highest dose lowering LDL by 52.5% and ...

Scientists have streamlined a method for measuring DNA-bound phosphorus in soil, making it cheaper and easier while preserving its accuracy. The technique could reveal how soil microbes help recycle phosphorus and ultimately support more sustainable ...

Scientists studying ancient Australian rocks uncovered more than 12,000 fossils from some of the oldest known eukaryotes on Earth. These early complex cells lived in settings ranging from coastal mudflats to the open sea, but only where oxygen was .. ...

Pain and fatigue in rheumatoid arthritis can persist even after inflammation improves, with depression, poor sleep, obesity, smoking, and chronic pain potentially helping sustain symptoms. Researchers say identifying these hidden drivers could ...