Missouri Researchers Reverse Age-Related Muscle Weakness in Animals by Targeting ClC-1
Updated
Updated · ScienceDaily · Sep 24
Missouri Researchers Reverse Age-Related Muscle Weakness in Animals by Targeting ClC-1
2 articles · Updated · ScienceDaily · Sep 24
Summary
University of Missouri scientists traced age-related muscle weakness to failing nerve-muscle signaling and restored strength in an animal model by partially inhibiting the ClC-1 protein.
The study found aging lowers NaV1.4 levels, making muscle fibers less responsive to nerve signals at the neuromuscular junction—a failure point researchers say had been largely overlooked.
Nearly half of adults over 80 are affected by sarcopenia, and the new approach aims to boost responsiveness in existing muscle fibers rather than replace lost muscle or neurons.
Clinical evidence already links ClC-1 inhibition to better strength and function in other neuromuscular disorders, and researchers say the findings could support future testing in older adults with sarcopenia.