NBESCientíficos revierten el envejecimiento muscular en ratones, pero descubren una limitación inesperada en el proceso. La investigación abre nuevas vías para la regeneración tisular.
#Ciencia #Envejecimiento #Investigación
Más info: https://www.sciencedaily.com/releases/2026/02/260222092306.htm
Scientists reverse muscle aging in mice and discover a surprising catch
A UCLA study in mice reveals that aging muscle stem cells accumulate a protein that slows repair but boosts survival. This protein, NDRG1, acts like a brake, preventing cells from activating quickly after injury. When researchers blocked it in older mice, muscle healing sped up dramatically — but stem cells became less resilient over time. The work suggests aging may reflect a survival trade-off rather than straightforward decline.