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Newly identified muscle protein may explain why exercise slows aging
Fox News • • health
Key Points:
- Researchers identified a muscle protein called NOX4 that declines with age and inactivity, which may explain why staying active helps maintain strength and health in older adults.
- In mice, reduced NOX4 levels were linked to frailty, muscle loss, insulin resistance, and liver disease, while exercise helped restore NOX4 levels and improved muscle health.
- The study, published in Science Advances, suggests NOX4 plays a key role in muscle repair and adaptation to exercise, contributing to overall resilience and healthy aging.
- Experts emphasize that exercise benefits extend beyond physical appearance, activating biological pathways that support recovery, adaptation, and stress response in the body.
- Although findings are promising, further research is needed to confirm NOX4's role in human aging, as the current study was primarily conducted in mice with some preliminary human muscle sample analysis.
