stem cell doping stem cell doping stem cell doping is the postulated practice of enhancing athletic performance through various beneficial effects of stem cells injected into the bloodstream or otherwise introduced into the body. currently there are no documented cases of stem cell doping, but there are suspicions that the practice may already be emerging. part of a series ondoping in sport substances and types anabolic steroids blood doping gene doping stem cell doping mechanical doping technology doping cannabinoids diuretics painkillers sedatives stem cell doping stimulants beta2-adrenergic agonist clenbuterol ephedrine epo human growth hormone methylhexanamine sarms stanozolol tetrahydrogestrinone terminology abortion doping biological passport blood-spinning doping test performance-enhancing drugs repoxygen stem cell doping whizzinator history olympics tour de france (1998, 1999, 2007) auto racing balco scandal clemson university steroid scandal u of south carolina steroid scandal dubin inquiry association football china east germany russia united states festina affair floyd landis case game of shadows juiced l.a. confidentiel lance armstrong history of allegations doping case operación puerto operation aderlass doping in american football steroid use in baseball barry bonds perjury case mitchell report biogenesis scandal doping-related lists doping cases in sport athletics cycling doping at the olympic games doping at the world championships in athletics stripped olympic medals stripped european athletics c'ships medals drugs banned from the olympics mlb players suspended for doping mlb players in the mitchell report anti-doping bodies world anti-doping agency international testing agency list of national anti-doping organizations australian sports anti-doping authority french anti-doping agency national anti-doping agency russian anti-doping agency uk anti-doping united states anti-doping agency