Multicenter Trial Confirms Targeted Myostatin Inhibition Stimulates Muscle Stem Cell Regeneration in Older Adults
Multicenter Trial Confirms Targeted Myostatin Inhibition Stimulates Muscle Stem Cell Regeneration in Older Adults
A 24-week double-blind randomized clinical trial demonstrates that selective blockade of the ActRIIB myostatin receptor restores satellite cell proliferation and reverses disuse muscle atrophy.
Scientific Methodology: Multi-center trial registry dataset (N=312, p < 0.001) evaluating appendicular lean mass via DEXA, isometric knee extensor torque, and circulating follistatin ratios.
1. Trial Design & Key Quantitative Endpoints
The 24-week investigation evaluated the safety and efficacy of targeted ActRIIB receptor inhibitors in older adults experiencing age-related muscle weakness. Active arm participants experienced a **+12.4% increase in appendicular lean mass** and a **+19.8% improvement in 400-meter walk speed**, confirming functional rejuvenation.
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