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Medical Dictionary

myostatin

noun myo·stat·in \ ˌmī-ə-ˈsta-tᵊn \

medical Definition of myostatin

:a protein found mainly in skeletal muscle that is a transforming growth factor acting to restrain the growth of muscles

Two treatments that block a protein called myostatin, which slows muscle growth, are now in the pipeline.
—Rowan Hooper, New Scientist, 10 Dec. 2005

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