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gene therapy becomes mainstream? "For years afterward, Sweeney spent much of his time scrutinizing the rats and mice he had injected with IGF-1 genes. He put them through a rigorous exercise program, strapping weights to their hind legs and repeatedly prodding them up a three-foot-high ladder. After two months, the rodents could lift 30 percent more weight, and their muscle mass had swollen by a third—double what his control group of mice (those without IGF-1) achieved with weight training alone. In another experiment Sweeney gave IGF-1 to mice but curbed their exercise. They too bulked up, jumping 15 percent in muscle volume and strength."
(4 pages) http://discovermagazine.com/2008/the-body/12-will-gene-therapy-destroy-sports/article_view?b_start:int=3&-C=
(4 pages) http://discovermagazine.com/2008/the-body/12-will-gene-therapy-destroy-sports/article_view?b_start:int=3&-C=