Sprint or marathon? Aging muscle stem cells shift from rapid repair to long-term survival - Phys.org
science 2026/01/31 17:20:01

Sprint or marathon? Aging muscle stem cells shift from rapid repair to long-term survival - Phys.org

Source:Phys.Org
Author:Tiare Dunlap

Aging muscles heal more slowly after injury—a frustrating reality familiar to many older adults. A UCLA study conducted in mice reveals an unexpected cause: Stem cells in aged muscle accumulate higher levels of a protein that slows their ability to activate a…