In aged muscle stem cells, higher levels of NDRG1 protein are associated with increased survival but reduced ability to repair damaged tissue.
See the scientific wording
NDRG1 accumulation in aging muscle stem cells reduces repair performance while enhancing survival.
Correlational — new studies may shift this
Randomized trialsOne low-scoring study links this claim to the outcome, but causation is not established.
What the research says
1 study reviewedSupporting (1)
Cellular Survivorship Bias as a Mechanistic Driver of Muscle Stem Cell Aging
Randomized Controlled Trial2026
In older muscle stem cells, too much NDRG1 protein makes them live longer but worse at fixing muscle damage. When scientists removed NDRG1, the cells fixed muscle faster but didn’t survive as long.
Contradicting (0)
No contradicting studies found yet
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In aging muscle stem cells, a protein called NDRG1 builds up and turns down a key growth pathway called mTOR. This makes the cells stay inactive longer and repair muscle slower, but it also helps them survive stress and last longer. Over time, only the cells with high NDRG1 survive repeated injuries, so the whole stem cell population becomes dominated by slow-acting but tough cells that can't fix muscle well.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting study
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