Related Experiment Videos
Thibo Colpaert1, Martijn Risseeuw2, Koen Deventer1
1Doping Control Laboratory, Department Diagnostic Sciences, Ghent University, Ghent, Belgium.
Biomedical Chromatography : BMC
|July 9, 2024
Summary
This study validates methods for detecting kisspeptin-10, a hormone banned in sports. The validated procedure successfully identified kisspeptin-10 and its metabolites in urine samples.
Area of Science:
- Endocrinology
- Analytical Chemistry
- Sports Science
Context:
- Kisspeptin-10 influences reproductive hormones and testosterone.
- Potential for misuse in sports leads to its inclusion on the World Anti-Doping Agency Prohibited List.
- Rapid in vivo elimination necessitates sensitive detection methods.
Purpose:
- To validate an initial testing procedure (screening) and a confirmation procedure for kisspeptin-10 in urine.
- To identify kisspeptin-10 metabolites to improve detection sensitivity.
- To analyze a black-market sample for purity and degradation.
Summary:
- Validated liquid chromatography-mass spectrometry methods for detecting kisspeptin-10 in urine.
- Identified four key peptide fragment metabolites (y9, y8, y7, y5) and an oxidation degradation product.
- Analyzed a black-market sample, finding no unexpected impurities but evidence of degradation.
Impact:
- Provides validated analytical methods crucial for anti-doping efforts.
- Enhances the ability to detect kisspeptin-10 misuse in athletes.
- Contributes to understanding kisspeptin-10 metabolism and stability.