Year in Review: Gift of steroids keeps on giving

Mouse muscles stay juiced long after doping ends

10:00am, December 27, 2013

PUMPED UP  Muscles in mice treated with steroids (right) grow bigger than muscles in undrugged mice (left). Steroids also increase the number of a muscle cell’s nuclei, which may help rebuild mass long after the steroids are gone.


Once a cheater, always a cheater, a mouse study found — at least when it comes to steroids.

The result, reported in October, strongly implies that anabolic steroids like testosterone give doping athletes a competitive advantage for years — perhaps even decades — after they stop taking the drugs.

If antidoping agencies were to revise steroid bans based on the results, those caught cheating might effectively face lifetime expulsion from competition.

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