Regulation of Muscle Mass by Follistatin and Activins

Abstract excerpt

Myostatin is a TGF-β family member that normally acts to limit skeletal muscle mass. Follistatin is a myostatin-binding protein that can inhibit myostatin activity in vitro and promote muscle growth in vivo. Mice homozygous for a mutation in the Fst gene have been shown to die immediately after birth but have a reduced amount of muscle tissue, consistent with a role for follistatin in regulating myogenesis. Here,...

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