What Is Spinal Muscular Atrophy (SMA)? Spinal muscular atrophy (SMA) is a genetic condition that causes muscle weakness and atrophy (when muscles get smaller ... but they could pass the mutated gene ...

Methods To evaluate whether hTNFtg mice are suffering from skeletal muscle atrophy, the authors isolated Triceps surae muscles from hTNFtg animals from various time-points of age starting 4 weeks ...