Mouse study shows aging muscle leaves a molecular fingerprint in its supporting matrix

Aging is often described through what we can see and feel: weaker muscles, reduced mobility and slower recovery. But behind these visible changes are deeper biological shifts in cells, tissues and the molecular structures that support them. A recent study published in BMC Genomics offers a closer look at one of these hidden layers of aging: the extracellular matrix, or ECM, in skeletal muscle.

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