The newest reporting from every desk, ordered by publication time. New stories appear here immediately after publication.
Postmortem brain analyses linked faster cognitive decline to abnormal myelin and reduced NRF2 activity in oligodendrocytes. A targeted mouse experiment supported a mechanistic role, but the findings do not establish a treatment for preserving cognition in people.
Laboratory and mouse experiments suggest the 16-amino-acid peptide can damage selected bacteria and influence macrophage development, while important limits keep the finding far from a human therapy claim.
Removing an insulin-like receptor throughout male C. elegans increased median lifespan by 446% and preserved mating capacity later in life. Tissue-specific experiments produced sharply different results, underscoring how far the findings remain from a human longevity intervention.
The investigational GLP-1 and glucagon receptor peptide produced dose-dependent weight reductions through the trial’s 32-week primary endpoint. Gastrointestinal adverse events were common, and one in five participants assigned to the highest dose discontinued treatment because of adverse events.
The UK regulator said all NGPod handheld readers and sensors should be quarantined and discarded after the manufacturer ceased trading. An earlier safety action followed two reports in which the device indicated acidic conditions despite a nasogastric tube being in the lung, including one incident with a fatal outcome.
A longitudinal analysis linked the intensity, timing and stability of daily activity patterns with changes in a blood-based biological-age measure. The observational findings support wearables as research tools, not clinical aging tests or proof that changing a schedule slows aging.
Three investigational programs have moved epigenetic restoration, autophagy enhancement and selective senotherapeutics into human studies—but none has shown whole-body age reversal.
Researchers engineered an antimicrobial peptide to become fully active after processing by an enzyme secreted by Pseudomonas aeruginosa. The species-selective results are preclinical and do not yet establish safety or efficacy in animals or people.
Low-income older adults in traditional rental housing had a higher adjusted mortality hazard than residents of subsidized senior housing. The observational findings suggest that residential context may modify the risks associated with social isolation, but they cannot establish that housing type caused longer survival.
Cornell researchers found that disabling NHR-49 caused sterile C. elegans to release unfertilized oocytes, deplete stored fat and die earlier. The mechanism clarifies a metabolic trade-off in worms but provides no evidence for a human longevity intervention.
Amylyx reported a 55% relative reduction in clinically significant and severe hypoglycemic events among 78 adults. The result is encouraging, but detailed and peer-reviewed Phase 3 data are not yet available.
Vitestro’s Aletta can locate a vein and complete an adult outpatient blood draw under trained supervision. FDA authorization establishes a new device category, but evidence for staffing, access and workflow benefits remains limited.