Longevity & AgingGLP-1 Drugs Counter Aging Across the Entire Body in Mice
Researchers at The Chinese University of Hong Kong used deep molecular profiling to show that GLP-1 receptor agonists (GLP-1RAs) — the drug class behind semaglutide and liraglutide — produce sweeping, body-wide anti-aging effects in male aging mice. Treated mice showed reversal of age-related molecular changes across multiple tissues and improved physical function. Crucially, these effects were specific to older animals and achieved at low doses that barely affected food intake or weight. When treatment began in very old mice, effects were even stronger and linked to hypothalamic GLP-1 receptor signaling, suggesting a brain-body aging axis. The molecular profile of GLP-1RA treatment closely resembled that of rapamycin, a gold-standard longevity intervention.
