Year in Review: Gift of steroids keeps on giving
Mouse muscles stay juiced long after doping ends
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.
J.C. Bruusgaard/Univ. of Oslo
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Once a cheater, always a cheater, a mouse study found — at least when it comes to steroids.