Abstract

For decades, drug testing has been the main instrument at the disposal of anti-doping authorities. The availability in the 1980s of substances identical to those produced by the human body, including the "big 3" (erythropoietin, testosterone, and growth hormone), necessitated a new paradigm in anti-doping. The athlete biological passport (ABP) is a new paradigm, complementary to traditional drug testing, based on the personalized monitoring of doping biomarkers. Athletes who abuse doping substances do so to trigger physiological changes that provide performance enhancement. The ABP aims to detect these changes through its 3 hematological, steroidal, and endocrine modules. Any deviation of a biomarker from what is expected in a healthy physiological condition can be attributable to doping or a medical condition, which, interestingly, is also the criterion used to define a banned substance. Recent advances in proteomics and metabolomics offer immense opportunities to enhance the ABP. The ABP shares multiple aspects with the present customization of health care and personalized medicine.

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