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Isotopes help pin down artificial testosterone

As two sporting stars undergo doping tests, news@nature.com finds out whether cheaters can really be caught.

In the past week, cyclist Floyd Landis and sprinter Justin Gatlin have both been singled out by doping tests - not for any new-fangled drug, but for the old-fashioned sex hormone testosterone. Landis made a spectacular comeback in the 17th leg of the Tour de France to take first place in the famous cycle race. But urine samples taken following that stunning performance showed unusually high levels of testosterone. And Gatlin, who shares the world record for the 100-metre sprint, tested positive for synthetic testosterone after a race in April this year. Both men maintain their innocence.

Read the story here.

Posted by Nicola Jones on August 1, 2006 06:22 PM |

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