Les marqueurs indirects du dopage sanguin

Today, in the fight against doping, disciplinary sanctions are primarily based on the discovery of an exogenous substance in the body of the athlete. However, the level of evidence provided by indirect markers of altered erythropoïesis can be high enough to differentiate between natural variations and blood doping. Forensic techniques for the evaluation of the evidence, and more particularly Bayesian networks, allow anti-doping authorities to take into account firstly the natural variations of indirect markers of blood doping - through a mathematical formalism based on probabilities -, and secondly the complexity due to the multiplicity of causes and confounding effects - through a distributed and flexible graphical representation. The information embodied in an athlete's biological passport may be then sufficient to present a case to a disciplinary panel.