пятница, 30 декабря 2016 г.

Critical Assessment of the Current WADA Approach for the Detection of 4-Chlorodehydromethyltestosteron

Критика методологии по определению долгоживущих метаболитов орал-туринабола. Методологии, используемой WADA, и разработанной в Москве, под руководством Родченкова и Соболевского.
Это первый нормальный, цивилизованный шаг в сторону правового, научного подхода к защите наших спортсменов. Не ток-шоу на Первом, для внутренней аудитории, не идиотские интервью, после которых сразу делаются заявления о вырванности заявлений из контекста, не тролли в интернете, а публикация в рецензируемом научном журнале. На английском языке.



Critical Assessment of the Current WADA Approach for the Detection of 4-Chlorodehydromethyltestosteron
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DOI: 10.4236/jasmi.2016.64008    33 Downloads   89 Views  
This paper is focused on application of method for detection of novel metabolites of 4-chlorodehydromethyltestosterone (known as oral turinabol, OT), which were postulated as long-term metabolites. The method started to be applied without rigorous validation, verification and excretion assay assisted as evidences for existence of the declared detectable compounds as true metabolites derived after OT biotransformation. This method has been started to use almost in its original form which arose in 2012 year for the very first time and never been revised and re-confirmed in peer-reviewed journals. Usually WADA encourages accredited laboratories to publish their results of methods development, validation and specific excretion studies in peer-reviewed journals. However, an incorrect method with neglected validation design and implicit data contradictions is currently widely applied. The author of this presented paper was athletes’ representative on repeated occasion and has been provided with several full documentation packages of OT novel metabolites analysis. Thus, the author makes its own conclusion based on its own evidences of that currently employed method and data analysis is exactly the same declared in a wrong way as emerged from the original paper.
Cite this paper
Kopylov, A. (2016) Critical Assessment of the Current WADA Approach for the Detection of 4-Chlorodehydromethyltestosteron. Journal of Analytical Sciences, Methods and Instrumentation6, 65-82. doi: 10.4236/jasmi.2016.64008.
[1]Editorial (2008) A Level Playing Field? Drug Testing in Sports Aims to Promote Fair, but the Science behind the Tests Needs to Be More Open. Nature, 455, 166.
[2]Sobolevsky, T. and Rodchenkov, G. (2012) Detection and mass Spectrometric Characterization of Novel Long-Term Dehydrochloromethyltestosterone Metabolites in Human Urine. The Journal of Steroid Biochemistry and Molecular Biology, 128, 121-127.
https://doi.org/10.1016/j.jsbmb.2011.11.004
[3]SCOPUS Author Preview Source:
https://www.scopus.com/results/citedbyresults.uri?sort=plf-f&cite=2-s2.0-
84855679337&src=s&imp=t&sid=5D49AA58FB0F12DE809BB9F3B00E5228.iqs8TDG
0Wy6BURhzD3nFA%3a130&sot=cite&sdt=a&sl=0&origin=resultslist&editSaveSearch=&txGid=0
[4]Athanasiadou, I., Kiousi, P., Kioukia-Fougia, N., Lyris, E. and Angelis, Y.S. (2015) Current Status and Recent Advantages in Derivatization Procedures in Human Doping Control. Bioanalysis, 7, 2537-2556.
https://doi.org/10.4155/bio.15.172
[5]Geyer, H., Schänzer, W. and Thevis, M. (2014) Anabolic Agents: Recent Strategies for Their Detection and Protection from Inadvertent Doping. British Journal of Sports Medicine, 48, 820-826.
https://doi.org/10.1136/bjsports-2014-093526
[6]Kiousi, P., Angelis, Y.S., Fragkaki, A.G., Georgakopoulos, C. and Lyris, E. (2015) Markers of Mesterolone Abuse in Sulfate Fraction for Doping Control in Human Urine. Journal of Mass Spectrometry, 50, 1409-1419.
https://doi.org/10.1002/jms.3715
[7]Yadav, S.K., Chandra, P., Goyal, R.N. and Shim, Y.-B. (2013) Chromatography-Based Determination of Anabolic Steroids in Biological Fluids: Future Prospects Using Electrochemistry and Miniaturized Microchip Device. Chromatographia, 76, 1439-1448.
https://doi.org/10.1007/s10337-012-2351-0
[8]WADA Technical Document—TD2015IDCR (2015) Minimum Criteria for Chromatographic-Mass Spectrometric Confirmation of the Identity of Analytes for Doping Control Purposes. Version Number 1.0.
http://www.wada-ama.org
[9]Larsson, M. (2011) Substance Identification in Anti-Doping Control by Means of Mass Spectrometry. Data Reduction and Decision Criteria. Journal of Analytical Sciences, Methods and Instrumentation, 1, 19-24.
https://doi.org/10.4236/jasmi.2011.12003
[10]Guddat, S., Fuhöller, G., Beuck, S., Schänzer, W. and Thevis, M. (2013) Synthesis, Characterization, and Detection of New Oxandrolone Metabolites as Long-Term Markers in Sports Drug Testing. Analytical and Bioanalytical Chemistry, 405, 8285- 8294.
https://doi.org/10.1007/s00216-013-7218-1
[11]Schiffer, L., Brixius-Anderko, S., Hannemann, F., Zapp, J., Neunzig, J., Thevis, M. and Bernhardt, R. (2016) Metabolism of Oral Turinabol by Human Steroid Hormone-Synthesizing Cytochrome P450 Enzymes. Drug Metabolism and Disposition, 44, 227-237.
https://doi.org/10.1124/dmd.115.066829
[12]Thevis, M., Thomas, A., Möller, I., Geyer, H., Dalton, J.-T. and Schänzer, W. (2011) Mass Spectrometric Characterization of Urinary Metabolites of the Selective Androgen Receptor Modulator S-22 to Identify Potential Targets for Routine Doping Controls. Rapid Communications in Mass Spectrometry, 25, 2187-2195.
https://doi.org/10.1002/rcm.5100
[13]Engel, L.L. (1963) Pure and Applied Biology, Vol. 3: Physical Properties of the Steroid Hormones. Pergamon Press, New York.
[14]Kasal, A., Budesinsky, M. and Griffiths, W.J. (2010) Spectroscopic Methods of Steroid Analysis. Chapter 2: Steroid Analysis. Springer, Berlin.
[15]De Laeter, J.R., Böhlke, J.K., de Bièvre, P., Hidaka, H., Peiser, H.S., Rosman, K.J.R. and Taylor, P.D.D. (2003) Atomic Weights of the Elements: IUPAC Technical Report. Pure and Applied Chemistry, 75, 683-800.
[16]Gustafsson, J.-A., Ryhage, E., Sjövall, J. and Moriarty, R.M. (1969) Migration of the Trimethylsilyl Group upon Electron Impact in Steroids. Journal of the American Chemical Society, 91, 1234-1236.
https://doi.org/10.1021/ja01033a045
[17]Griffiths, W.J., Shackleton, C. and Sjövall, J. (2005) Steroid Analysis. In: The Encylopedia of Mass Spectrometry, Vol. 3, Elsevier, Oxford, 447-472.


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