What is Type 2 muscle fiber atrophy?
What is Type 2 muscle fiber atrophy? Skeletal muscle fiber II specific atrophy is typically induced under cachexia, sepsis, diabetes, and chronic heart failure. Peroxisome proliferator-activated receptor gamma coactivator 1-alpha (PGC1α) protects slow, oxidative fibers from atrophy. What is the life expectancy of a child with SMA type 2? Type 2 is an intermediate form of SMA. Children with this type may sit without support at some point but cannot walk on their own. Symptoms typically start between 6 and 18 months of age. Depending on the severity of symptoms, children with type 2 may have a normal life span....