The Claim
In aged mouse muscle stem cells, increased expression of the tumor suppressor NDRG1 is associated with suppressed mTOR signaling, reduced activation capacity, and enhanced long-term survival.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
In aged mouse muscle stem cells, higher levels of the NDRG1 protein correlate with lower mTOR signaling, reduced ability to activate for repair, and longer cell survival.
See the scientific wording
In aged mouse muscle stem cells, increased expression of the tumor suppressor NDRG1 is associated with suppressed mTOR signaling, reduced activation capacity, and enhanced long-term survival, suggesting a trade-off between regenerative potential and cellular resilience during aging.
In older muscle stem cells, a protein called NDRG1 builds up and turns down a key growth signal called mTOR. This makes the cells stay in a resting state longer and respond slower to injury, but it also helps them survive repeated stress and damage. Over time, cells that do not make enough NDRG1 die off during injury cycles, leaving behind only the ones that make lots of NDRG1. These surviving cells are more durable but less able to repair muscle, creating a population of stem cells that last longer but heal poorly.
What the research says
1 studyStudy: Cellular Survivorship Bias as a Mechanistic Driver of Muscle Stem Cell Aging
In older mice, muscle stem cells make more NDRG1 protein, which makes them slower to repair muscle but better at surviving repeated injuries — like choosing to live longer instead of healing fast. The study proved this by removing NDRG1: the cells healed faster but died off more easily.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.