A seven-month old baby with a genetic mutation that boosts muscle growth is seen in an undated black and white image released by the New England Journal of Medicine (news - web sites) on Wednesday June 23, 2004. The discovery, reported in Thursday's New England Journal of Medicine, represents the first documented human case of such a mutation. The boy's mutant DNA segment was found to block production of a protein called myostatin that limits muscle growth. (AP Photo/New England Journal of Medicine, HO)

Publicado por Manuel 03:43:00    

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