Erythropoietin and analogs

Area of Science:

• Biochemistry
• Sports Science
• Analytical Chemistry

Background:

• Erythropoietin (EPO) is a hormone that enhances red blood cell production and tissue oxygenation.
• Its performance-enhancing effects have led to its ban in sports since 1990, with widespread abuse of recombinant EPO (rEPO) in endurance sports.
• The development of rEPO has necessitated sophisticated detection methods to distinguish it from endogenous EPO.

Purpose of the Study:

• To review the mode of action of EPO.
• To discuss various forms of rEPO and their detection.
• To outline analytical strategies for detecting EPO doping.

Main Methods:

• Isoelectric focusing (IEF) and double blotting are key methods for differentiating endogenous and recombinant EPO.
• The study reviews analytical procedures and strategies for EPO doping detection.
• Challenges in detecting novel EPO analogues are highlighted.

Main Results:

• IEF and double blotting represent a milestone in detecting rEPO doping.
• The emergence of EPO analogues challenges standard detection methods.
• The need for alternative analytical approaches is emphasized.

Conclusions:

• Effective detection of EPO doping relies on advanced analytical techniques.
• Ongoing development of analytical methods is crucial to combat the use of novel EPO variants in sports.
• This review provides a comprehensive overview of EPO doping detection strategies.