Detection of DHCMT long-term metabolite glucuronides with LC-MSMS as an alternative approach to conventional GC-MSMS analysis
Copyright © 2022 The Author(s). Published by Elsevier Inc. All rights reserved..
Dehydrochloromethyltestosterone (DHCMT) is one of the most detected illicit used anabolic-androgenic steroids in professional sports. Therefore, a fast and accurate analysis of this substance is of great importance for a constructive fight against doping abuse. The conventional method for the analysis of this drug, GC-MSMS, is very sensitive and selective but also very time- and resource-consuming. With the presented work, a new approach for simple detection with LC-HRMSMS without any sample preparation is introduced. The method is based on the direct analysis of two newly described phase-II metabolites of the DHCMT long-term metabolite 4-chloro-18-nor-17β-hydroxymethyl-17α-methyl-5β-androst-13-en-3α-ol (M3). LC-HRMSMS, GC-MSMS, fractionation and derivatization experiments are combined to identify and characterize for the first time two different glucuronide-acid conjugates of this metabolite in positive human urine samples. In addition, a third glucuronide metabolite was identified, however without isomeric structure determination. The detection of these metabolites is particularly interesting for confirmation analyses, as the method is rapid and requires little sample material.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2022 |
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| Erschienen: |
2022 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:180 |
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| Enthalten in: |
Steroids - 180(2022) vom: 15. Apr., Seite 108979 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Göschl, Lorenz [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 06.05.2022 Date Revised 06.05.2022 published: Print-Electronic Citation Status MEDLINE |
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| doi: |
10.1016/j.steroids.2022.108979 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 520 | |a Copyright © 2022 The Author(s). Published by Elsevier Inc. All rights reserved. | ||
| 520 | |a Dehydrochloromethyltestosterone (DHCMT) is one of the most detected illicit used anabolic-androgenic steroids in professional sports. Therefore, a fast and accurate analysis of this substance is of great importance for a constructive fight against doping abuse. The conventional method for the analysis of this drug, GC-MSMS, is very sensitive and selective but also very time- and resource-consuming. With the presented work, a new approach for simple detection with LC-HRMSMS without any sample preparation is introduced. The method is based on the direct analysis of two newly described phase-II metabolites of the DHCMT long-term metabolite 4-chloro-18-nor-17β-hydroxymethyl-17α-methyl-5β-androst-13-en-3α-ol (M3). LC-HRMSMS, GC-MSMS, fractionation and derivatization experiments are combined to identify and characterize for the first time two different glucuronide-acid conjugates of this metabolite in positive human urine samples. In addition, a third glucuronide metabolite was identified, however without isomeric structure determination. The detection of these metabolites is particularly interesting for confirmation analyses, as the method is rapid and requires little sample material | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a Research Support, Non-U.S. Gov't | |
| 650 | 4 | |a Anabolic androgenic steroids | |
| 650 | 4 | |a Anti-doping | |
| 650 | 4 | |a Dehydrochloromethyltestosterone | |
| 650 | 4 | |a Glucuronide | |
| 650 | 4 | |a High-resolution mass spectrometry | |
| 650 | 4 | |a Phase-II metabolite | |
| 650 | 7 | |a Anabolic Agents |2 NLM | |
| 650 | 7 | |a Glucuronides |2 NLM | |
| 700 | 1 | |a Gmeiner, Günter |e verfasserin |4 aut | |
| 700 | 1 | |a Gärtner, Peter |e verfasserin |4 aut | |
| 700 | 1 | |a Steinacher, Michael |e verfasserin |4 aut | |
| 700 | 1 | |a Forsdahl, Guro |e verfasserin |4 aut | |
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