"Finding alternative ways to trigger the same responses as NOX4 could help individuals retain muscle mass and strength as NOX4 naturally declines with age."
A study from Monash University, published in Science Advances, has identified the protein NOX4 in skeletal muscle as a significant factor in the anti-aging benefits of exercise. The research indicates that NOX4 levels naturally decrease with age, which is associated with muscle wasting and frailty.
Key Findings
The study, which utilized preclinical models, found that restoring NOX4 levels led to improvements in metabolism, muscle mass, and strength. Researchers reported that both physical activity and NOX4 levels decline with age, and lower levels of the protein are correlated with muscle wasting and frailty.
Background and Context
This research builds upon previous findings that NOX4 signals muscles to release oxygen-rich molecules, which aid in cellular adaptation, energy production, and reduction of cellular damage.
Researcher Statements
- Professor Tony Tiganis (Monash Biomedicine Discovery Institute) stated that finding alternative ways to trigger the same responses as NOX4 could help individuals retain muscle mass and strength as NOX4 naturally declines with age.
- Dr. Chrysovalantou Xirouchaki, the lead researcher, noted that future research will aim to identify the downstream signals triggered by NOX4 and investigate naturally occurring compounds from cruciferous vegetables (such as broccoli, cabbage, and Brussels sprouts) to potentially restore this pathway.