muscle strength

A Love Letter to the Cough Assist Machine

This column is my love letter to the cough assist machine. I love the assistive device and what it does for my three sons, Max, Rowen, and Charlie, who live with Duchenne muscular dystrophy (DMD). Twelve years ago, I had no idea what the heck a cough assist machine…

Upper Limb Strength, Function Worsen Over Time in DMD

Upper limb strength, function, and muscle fat fraction continuously worsen over time in Duchenne muscular dystrophy (DMD) patients with mutations amenable to exon 53 skipping, according to three-year data from a natural history study. Notably, this progression of upper limb involvement was assessed reliably with strength, function, and muscle…

Deleting Mss51 Gene Reduces Fatigue, Increases Endurance in DMD Mice

By deleting the Mss51 gene, scientists were able to reduce fatigue, increase endurance, and ease mitochondrial impairment in a mouse model of Duchenne muscular dystrophy (DMD). Mss51 is a gene that provides instructions to make a skeletal muscle protein specifically found in mitochondria, the small cell compartments responsible for…

Microdystrophin Gene Therapy Shows Promise in Dogs with Duchenne Muscular Dystrophy, Study Shows

Injecting a smaller but functional form of the dystrophin gene, called microdystrophin, into dogs naturally affected by Duchenne muscular dystrophy allowed them to recover muscle strength and stabilized their overall disease symptoms, a new study shows. “This preclinical study demonstrates the safety and efficacy of microdystrophin, and makes it possible to…