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Gheddar L, Blanchot A, Ameline A, Arbouche N, Raul JS, Kintz P. The Power of Keratinous Matrices (Head Hair, Body Hair and Nail Clippings) Analysis in a Case of Death Involving Anabolic Agents. J Anal Toxicol 2023; 46:e307-e313. [PMID: 36516229 DOI: 10.1093/jat/bkac101] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 11/22/2022] [Accepted: 12/12/2022] [Indexed: 12/15/2022] Open
Abstract
A 29-year-old man with no previous medical history was found dead at home. Anabolic products (tablets and oily solutions) and syringes were found at the scene. The man was known to train regularly at a fitness club and to use anabolic drugs. Following an unremarkable autopsy with normal histology, toxicological analyses were requested by the local prosecutor to provide further information. Blood, head hair (5 cm, black), body hair (axillary and leg) and toe and finger nail clippings were submitted to liquid and gas chromatography coupled to tandem mass spectrometry (LC and GC-MS-MS) methods to test for anabolic steroids. Blood tested positive for testosterone (4 ng/mL), boldenone (26 ng/mL), stanozolol (3 ng/mL) and trenbolone (<1 ng/mL). Segmental head hair tests (2 × 2.5 cm) revealed a repeated consumption of testosterone (65-72 pg/mg), testosterone propionate (930-691 pg/mg), testosterone isocaproate (79 pg/mg to <5 pg/mg), nandrolone decanoate (202-64 pg/mg), boldenone (16 pg/mg), stanozolol (575-670 pg/mg), trenbolone (4 pg/mg-not detected), drostanolone (112-30 pg/mg), drostanolone enanthate (26-5 pg/mg) and drostanolone propionate (15-4 pg/mg). In addition to the substances identified in head hair, testosterone decanoate, testosterone cypionate and nandrolone were identified in both body hair and nails. The experts concluded that the manner of death can be listed as toxic due to massive repetitive use of anabolic steroids during the previous months. For anabolic agents, blood does not seem to be the best matrix to document a fatal intoxication. Indeed, these products are toxics when abused long term and are known to cause cardiac, hepatic and renal diseases. When compared to blood, hair and nails have a much larger window of detection. Therefore, keratinous matrices seem to be the best approach to test for anabolic steroids when a sudden death is observed in the context of possible abuse of steroids.
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Affiliation(s)
- Laurie Gheddar
- Institut de Médecine Légale, 11 rue Humann, Strasbourg 67000, France
| | - Adeline Blanchot
- Institut de Médecine Légale, 11 rue Humann, Strasbourg 67000, France
| | - Alice Ameline
- Institut de Médecine Légale, 11 rue Humann, Strasbourg 67000, France
| | - Nadia Arbouche
- Institut de Médecine Légale, 11 rue Humann, Strasbourg 67000, France
| | | | - Pascal Kintz
- Institut de Médecine Légale, 11 rue Humann, Strasbourg 67000, France.,X-Pertise Consulting, 42 rue principale, Mittelhausbergen 67206, France
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2
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Applicability of new configuration of open tubular solid phase microextraction for determination of free (unconjugated) testosterone esters by gas chromatography with barrier ionization discharge detector. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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3
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Identification par LC-MS/MS de la testostérone acétate dans la crinière d’un cheval de course. TOXICOLOGIE ANALYTIQUE ET CLINIQUE 2022. [DOI: 10.1016/j.toxac.2022.03.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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4
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Kintz P, Gheddar L, Blanchot A, Ameline A, Raul JS. In a Case of Death Involving Steroids, Hair Testing is More Informative than Blood or Urine Testing. J Anal Toxicol 2021; 45:829-834. [PMID: 33991187 DOI: 10.1093/jat/bkab048] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Revised: 04/22/2021] [Accepted: 05/14/2021] [Indexed: 02/06/2023] Open
Abstract
A 59-year-old male was found dead at home, with two empty vials of an oily preparation obtained from a manufacturer from East Europe. There was no label on the vial. The subject was a former weightlifter, also known as an anabolic steroids abuser. The local prosecutor ordered a body examination, which was unremarkable, and allowed collecting femoral blood, urine and scalp hair (6 cm, brown). He was treated for cardiac insufficiency with quinidine. Biological specimens were submitted not only to standard toxicological analyses including a screening with liquid chromatography (LC)-quadrupole time of flight, but also to a specific LC-tandem mass spectrometry method for anabolic steroids testing. Ethanol was not found in both blood and urine. Quinidine blood concentration (791 ng/mL) was therapeutic. No drug of abuse was identified. In blood, testosterone was less that 1 ng/mL and no other steroid was identified. In urine, testosterone/epitestosterone was 1.56 and boldenone was present at a concentration of 9 ng/mL. The hair test results, performed on the whole length, demonstrated repetitive steroids abuse, including not only testosterone (140 pg/mg), testosterone propionate (605 pg/mg) and testosterone decanoate (249 pg/mg), but also boldenone (160 pg/mg), trenbolone (143 pg/mg) and metandienone (60 pg/mg). Since forensic laboratories have limited access to steroid urinary metabolite reference material due to specific regulations (to avoid testing athletes before anti-doping verifications), hair analyses seem to be the best approach to document anabolic agents abuse. Indeed, in hair, the target drug is the parent compound; in addition, when compared to blood or urine, this matrix has a much larger window of detection. The pathologist concluded cardiac insufficiency in a context involving repetitive abuse of anabolic drugs. This case indicates that more attention should be paid to anabolic steroids, in a context of sudden cardiac death.
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Affiliation(s)
- Pascal Kintz
- X-Pertise Consulting, 42 rue principale, Mittelhausbergen 67206, France.,Institut de Médecine Légale, 11 rue Humann, Strasbourg 67000, France
| | - Laurie Gheddar
- Institut de Médecine Légale, 11 rue Humann, Strasbourg 67000, France
| | - Adeline Blanchot
- Institut de Médecine Légale, 11 rue Humann, Strasbourg 67000, France
| | - Alice Ameline
- Institut de Médecine Légale, 11 rue Humann, Strasbourg 67000, France
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5
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Hobo Y, Nishikawa J, Miyashiro Y, Fujikata A. Measurement of steroid hormones by liquid chromatography-tandem mass spectrometry with small amounts of hair. Steroids 2020; 164:108732. [PMID: 32976917 DOI: 10.1016/j.steroids.2020.108732] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 08/24/2020] [Accepted: 09/15/2020] [Indexed: 01/25/2023]
Abstract
Steroid hormone levels in hair reflect the integrated values (average values) of hormone secretion over the past few months. We have used a method to evaluate diseases and chronic stress, discrimination of banned drug use, and so on. In contrast, the hair analysis methods reported so far required at least 10 mg (about 50 to 100 hair strands) of hair to analyze multiple steroid hormones from the same sample. Here, we developed a new method for measuring steroid hormones in hair by liquid chromatography-tandem mass spectrometry, which identifies multiple steroid hormones from 5 to 10 (about 1 mg) hair strands. Ten steroid hormones (cortisol, cortisone, testosterone, dihydrotestosterone, dehydroepiandrosterone, androstenedione, progesterone, pregnenolone, androstenediol and estradiol) covering from sex hormones to stress hormones were derivatized and measured by four different measuring systems. The method showed good linearity for all steroids with correlation coefficients of 0.999 or more. The accuracy and precision of intra- and inter-assay ranged from 96.0 to 106.4% and 4.8 to 8.1% for intra-assay, and from 96.9 to 104.9% and 6.9 and 10.6% for inter-assay, respectively. A mixed solution containing 0.1 M trifluoroacetic acid and 50% acetonitrile was used to extract hair and to enhance the cortisol extraction efficiency approximately twice compared to the previously reported extraction with methanol. This method has the potential to clarify the relationship between steroid hormone levels and diseases that show alopecia such as chronic stress and androgenetic alopecia.
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Affiliation(s)
- Yoshitaka Hobo
- ASKA Pharmaceutical Medical Co., Ltd., 5-36-1 Shimosakunobe, Kawasaki Takatsu-ku, Kanagawa 213-8522, Japan.
| | - Jun Nishikawa
- ASKA Pharmaceutical Medical Co., Ltd., 5-36-1 Shimosakunobe, Kawasaki Takatsu-ku, Kanagawa 213-8522, Japan
| | - Yoshimichi Miyashiro
- ASKA Pharmaceutical Medical Co., Ltd., 5-36-1 Shimosakunobe, Kawasaki Takatsu-ku, Kanagawa 213-8522, Japan
| | - Akira Fujikata
- ASKA Pharmaceutical Medical Co., Ltd., 5-36-1 Shimosakunobe, Kawasaki Takatsu-ku, Kanagawa 213-8522, Japan
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6
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de la Torre X, Iannone M, Botrè F. Improving the detection of anabolic steroid esters in human serum by LC-MS. J Pharm Biomed Anal 2020; 194:113807. [PMID: 33281003 DOI: 10.1016/j.jpba.2020.113807] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Revised: 11/24/2020] [Accepted: 11/25/2020] [Indexed: 12/15/2022]
Abstract
The detection of the abuse of pseudo-endogenous steroids in sport is articulated in two different levels: an initial testing procedure, based on the longitudinal evaluation of the urinary androgenic steroid profile by gas-chromatography mass spectrometry (GC-MSn), and a confirmation analysis, based on the differentiation between the endogenous and exogenous origin of the pseudo-endogenous steroids by gas-chromatography coupled to isotopic ratio mass spectrometry (GC/C/IRMS). The abuse of pharmaceutical preparations displaying a carbon isotopic composition values within a range similar to those reported for endogenous urinary steroids makes more difficult the application of GC/C/IRMS technique. To overcome this limitation, the direct detection of an intact synthetic anabolic steroid ester in blood matrices (plasma and/or serum) could supply the unequivocal proof of exogenous administration of pseudo-endogenous steroids. Here we are presenting a liquid chromatography tandem mass spectrometry (LC-MS/MS) method for the analysis of 14 testosterone (T) esters and 2 nandrolone (Nand) esters in human serum. Sample pre-treatment consisted of protein precipitation, liquid-liquid extraction and derivatization. The formation of three different derivatives (oxime derivatives, Girard P and Girard T hydrazones) is considered, in order to guarantee an improvement in the detection capability of the assay with respect to underivatized compounds. Once the most suitable derivative was selected, the method was validated, according to the World Anti-Doping Agency (WADA) criteria, in terms of specificity, linearity, limit of detection (LOD), extraction recovery, matrix effect (ion suppression/enhancement), carry over and autosampler stability. The formation of Girard P hydrazones of T and Nand esters provides the best results compared to the underivatized compounds, oxime and Girard T derivatives, respectively. The presented analytical method is specific for all considered compounds and linear in the range of concentrations investigated (0.25-10 ng/mL). The LODs are between 0.03 and 0.30 ng/mL, the extraction recovery higher than 70 % for all esters and no remarkable matrix effect, expressed in terms of ion enhancement and ion suppression, was observed. Finally, the developed and validate method was applied in the analysis of serum samples collected after the administration of a single dose (40 mg, 1 capsule) of testosterone undecanoate (Andriol ®) demonstrating its applicability.
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Affiliation(s)
| | - Michele Iannone
- Laboratorio Antidoping FMSI, Largo Giulio Onesti 1, Rome, Italy
| | - Francesco Botrè
- Laboratorio Antidoping FMSI, Largo Giulio Onesti 1, Rome, Italy; Institute of Sport Science, University of Lausanne (ISSUL), Synathlon, CH-1015 Lausanne, Switzerland
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7
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Kintz P, Gheddar L, Ameline A, Arbouche N, Raul J. Hair testing for doping agents. What is known and what remains to do. Drug Test Anal 2020; 12:316-322. [DOI: 10.1002/dta.2766] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 01/09/2020] [Accepted: 01/10/2020] [Indexed: 12/14/2022]
Affiliation(s)
- Pascal Kintz
- X‐Pertise Consulting 42 rue principale F‐67206 Mittelhausbergen France
- Institut de médecine légale 11 rue Humann F‐67000 Strasbourg France
| | - Laurie Gheddar
- Institut de médecine légale 11 rue Humann F‐67000 Strasbourg France
| | - Alice Ameline
- Institut de médecine légale 11 rue Humann F‐67000 Strasbourg France
| | - Nadia Arbouche
- Institut de médecine légale 11 rue Humann F‐67000 Strasbourg France
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8
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Gheddar L, Raul JS, Kintz P. First identification of a diuretic, hydrochlorothiazide, in hair: Application to a doping case and interpretation of the results. Drug Test Anal 2018; 11:157-161. [DOI: 10.1002/dta.2445] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2018] [Revised: 06/09/2018] [Accepted: 06/11/2018] [Indexed: 11/07/2022]
Affiliation(s)
- L. Gheddar
- Institut de médecine légale, laboratoire de toxicologie; Strasbourg France
| | - JS. Raul
- Institut de médecine légale, laboratoire de toxicologie; Strasbourg France
| | - P. Kintz
- Institut de médecine légale, laboratoire de toxicologie; Strasbourg France
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9
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Reverter-Branchat G, Ventura R, Ezzel Din M, Mateus J, Pedro C, Segura J. Detection of erythropoiesis-stimulating agents in a single dried blood spot. Drug Test Anal 2018; 10:1496-1507. [DOI: 10.1002/dta.2418] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 04/18/2018] [Accepted: 05/28/2018] [Indexed: 12/13/2022]
Affiliation(s)
- Gemma Reverter-Branchat
- Integrative Pharmacology and Systems Neuroscience Research Group, Neurosciences Research Program; IMIM - Hospital del Mar Medical Research Institute; Barcelona Spain
| | - Rosa Ventura
- Catalonian Antidoping Laboratory, Doping Control Research Group, Neurosciences Research Programme; IMIM - Hospital del Mar Medical Research Institute; Barcelona Spain
| | - Mohammed Ezzel Din
- Integrative Pharmacology and Systems Neuroscience Research Group, Neurosciences Research Program; IMIM - Hospital del Mar Medical Research Institute; Barcelona Spain
| | - Julián Mateus
- Integrative Pharmacology and Systems Neuroscience Research Group, Neurosciences Research Program; IMIM - Hospital del Mar Medical Research Institute; Barcelona Spain
| | - Carme Pedro
- Department of Hematology; Hospital del Mar-IMIM; Barcelona Spain
| | - Jordi Segura
- Integrative Pharmacology and Systems Neuroscience Research Group, Neurosciences Research Program; IMIM - Hospital del Mar Medical Research Institute; Barcelona Spain
- Catalonian Antidoping Laboratory, Doping Control Research Group, Neurosciences Research Programme; IMIM - Hospital del Mar Medical Research Institute; Barcelona Spain
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10
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Devi JL, Zahra P, Vine JH, Whittem T. Determination of testosterone esters in the hair of male greyhound dogs using liquid chromatography-high resolution mass spectrometry. Drug Test Anal 2017; 10:460-473. [DOI: 10.1002/dta.2236] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2017] [Revised: 06/05/2017] [Accepted: 06/16/2017] [Indexed: 11/09/2022]
Affiliation(s)
- Jayasree Leela Devi
- Translational Research and Animal Clinical Trial Study Group, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences; The University of Melbourne; Victoria Australia
| | - Paul Zahra
- Racing Analytical Services Limited; Flemington Victoria Australia
| | - John H. Vine
- Racing Analytical Services Limited; Flemington Victoria Australia
| | - Ted Whittem
- Translational Research and Animal Clinical Trial Study Group, Melbourne Veterinary School, Faculty of Veterinary and Agricultural Sciences; The University of Melbourne; Victoria Australia
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11
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Fabresse N, Grassin-Delyle S, Etting I, Alvarez JC. Detection and quantification of 12 anabolic steroids and analogs in human whole blood and 20 in hair using LC-HRMS/MS: application to real cases. Int J Legal Med 2017; 131:989-999. [DOI: 10.1007/s00414-017-1552-3] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Accepted: 01/31/2017] [Indexed: 01/31/2023]
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12
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Li Y, Yu P, Wang Q, Zhou Q, He L, Yang H, Fang B. Determination of Anabolic Hormones in Porcine Hair by High-Performance Liquid Chromatography–Mass Spectrometry. ANAL LETT 2016. [DOI: 10.1080/00032719.2016.1167218] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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13
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Forsdahl G, Erceg D, Geisendorfer T, Turkalj M, Plavec D, Thevis M, Tretzel L, Gmeiner G. Detection of testosterone esters in blood. Drug Test Anal 2015; 7:983-9. [DOI: 10.1002/dta.1914] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Revised: 10/05/2015] [Accepted: 10/06/2015] [Indexed: 12/31/2022]
Affiliation(s)
- Guro Forsdahl
- Doping Control Laboratory, Seibersdorf Labor GmbH; Seibersdorf Austria
- Natural Products and Medicinal Chemistry Research Group, Department of Pharmacy; University of Tromsø - The Arctic University of Norway; Tromsø Norway
| | - Damir Erceg
- Childrens Hospital Srebrnjak, Clinical Trials Unit; Zagreb Croatia
- Josip Juraj Strostamyer University of Osijek, Medical School; Osijek Croatia
| | | | - Mirjana Turkalj
- Childrens Hospital Srebrnjak, Clinical Trials Unit; Zagreb Croatia
- Josip Juraj Strostamyer University of Osijek, Medical School; Osijek Croatia
| | - Davor Plavec
- Childrens Hospital Srebrnjak, Clinical Trials Unit; Zagreb Croatia
- Josip Juraj Strostamyer University of Osijek, Medical School; Osijek Croatia
| | - Mario Thevis
- Institute of Biochemistry, Center for Preventive Doping Research; German Sport University; Cologne Germany
| | - Laura Tretzel
- Institute of Biochemistry, Center for Preventive Doping Research; German Sport University; Cologne Germany
| | - Günter Gmeiner
- Doping Control Laboratory, Seibersdorf Labor GmbH; Seibersdorf Austria
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14
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Strano-Rossi S, Castrignanò E, Anzillotti L, Odoardi S, De-Giorgio F, Bermejo A, Pascali VL. Screening for exogenous androgen anabolic steroids in human hair by liquid chromatography/orbitrap-high resolution mass spectrometry. Anal Chim Acta 2013; 793:61-71. [DOI: 10.1016/j.aca.2013.07.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Revised: 06/19/2013] [Accepted: 07/09/2013] [Indexed: 10/26/2022]
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15
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Kaabia Z, Dervilly-Pinel G, Hanganu F, Cesbron N, Bichon E, Popot M, Bonnaire Y, Le Bizec B. Ultra high performance liquid chromatography/tandem mass spectrometry based identification of steroid esters in serum and plasma: An efficient strategy to detect natural steroids abuse in breeding and racing animals. J Chromatogr A 2013; 1284:126-40. [DOI: 10.1016/j.chroma.2013.02.010] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Revised: 01/31/2013] [Accepted: 02/05/2013] [Indexed: 11/16/2022]
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16
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Bichon E, Béasse A, Prevost S, Christien S, Courant F, Monteau F, Le Bizec B. Improvement of estradiol esters monitoring in bovine hair by dansylation and liquid chromatography/tandem mass spectrometry analysis in multiple reaction monitoring and precursor ion scan modes. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2012; 26:819-827. [PMID: 22368062 DOI: 10.1002/rcm.6160] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
RATIONALE The control of forbidden anabolic practices in cattle in the European Union has become challenging since endogenous compounds such as estradiol derivatives can potentially be used as growth promoters. Due to the great difficulty in establishing a reference threshold value for endogenous steroids, the direct detection of steroid esters in hair is an efficient strategy for the detection of 'natural' steroid abuse in cattle. METHODS The present study aimed to develop and validate according to the current European standards a specific liquid chromatography/tandem mass spectrometry (LC/MS/MS) analytical strategy to monitor estrogen esters in bovine hair. The analysis was performed by positive ion electrospray ionisation (ESI+) after dansylation. Two acquisition modes were then assessed: single reaction monitoring and precursor ion scanning. RESULTS The results showed that the introduction of a dansylation step strongly improves the sensitivity of the detection of estradiol-17-esters by LC/(ESI+)-MS/MS. The CCα values are in the range 1-10 ng g(-1) after optimisation, except for estradiol decanoate for which the derivatisation is not efficient. In addition, this LC/MS/MS approach makes it possible to carry out a precursor ion scan to screen for the presence of these estradiol 17-esters in hair samples. CONCLUSIONS Based on the specific product ions, i.e. m/z 255 in native conditions or m/z 171 after dansylation, this strategy has the advantage of detecting any (un)known estradiol ester and of giving access to the [M + H](+) ion of the suspected ester through only a single analysis.
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Affiliation(s)
- E Bichon
- LUNAM Université, Oniris, Laboratoire d'Etude des Résidus et Contaminants dans les Aliments (LABERCA), F-44307, Nantes, France.
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Fabregat A, Pozo OJ, Marcos J, Segura J, Ventura R. Alternative markers for the long-term detection of oral testosterone misuse. Steroids 2011; 76:1367-76. [PMID: 21782838 DOI: 10.1016/j.steroids.2011.07.005] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2011] [Revised: 07/06/2011] [Accepted: 07/07/2011] [Indexed: 11/20/2022]
Abstract
The screening of testosterone misuse in the doping control field is normally performed by the measurement of the ratio between the concentrations of testosterone and epitestosterone excreted as glucuronides (T/E). Despite the satisfactory results obtained with this approach, the measurement of T/E presents some limitations like the long-term detection of oral testosterone administration. Recently, several testosterone metabolites released after basic treatment of the urine have been reported (androsta-1,4-dien-3,17-dione, androsta-4,6-dien-3,17-dione, 17β-hydroxy-androsta-4,6-dien-3-one and 15-androsten-3,17-dione). In the present work, the usefulness of these metabolites for the detection of oral testosterone misuse has been evaluated and compared with the conventional T/E measurement. For this purpose, 173 urine samples collected from healthy volunteers were analysed in order to obtain reference concentrations for the four metabolites released after alkaline treatment. On the other hand, urine samples collected from five volunteers before and after testosterone undecanoate administration were also analysed. Concentrations of androsta-4,6-dien-3,17-dione and 17β-hydroxy-androsta-4,6-dien-3-one showed a similar behaviour as the T/E, allowing the detection of the misuse for several hours after administration. More promising results were obtained by quantifying androsta-1,4-dien-3,17-dione and 15-androsten-3,17-dione. The time in which the concentrations of these analytes could be differentiated from the basal level was between 3 and 6 times longer than the obtained with T/E, as a result, an improvement in the detection of testosterone abuse can be achieved. Moreover, several ratios between these compounds were evaluated. Some of them improved the detection of testosterone misuse when comparing with T/E. The best results were obtained with those ratios involving androsta-1,4-dien-3,17-dione.
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Affiliation(s)
- Andreu Fabregat
- Bioanalysis Research Group, IMIM, Hospital del Mar, Doctor Aiguader 88, 08003 Barcelona, Spain
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18
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Kintz P. Value of the concept of minimal detectable dosage in human hair. Forensic Sci Int 2011; 218:28-30. [PMID: 22018745 DOI: 10.1016/j.forsciint.2011.10.018] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2011] [Accepted: 05/24/2011] [Indexed: 11/25/2022]
Abstract
The influence on drug incorporation of melanin affinity, lipophilicity, and membrane permeability is of paramount importance. Despite their high lipophilicity, some drugs have quite low incorporation rate into hair, suggesting that the higher incorporation rates of basic drugs (cocaine, amphetamines.) than neutral (steroids, benzodiazepines, cannabinoids…) or acidic ones are strongly related to the penetrating ability of the drug to break through the membrane based on the pH gradient between blood and the acidic hair matrix. When using hair analysis as a matrix during investigative analysis, e.g. workplace drug testing, doping, driving under the influence, drug-facilitated crime, the question of importance is to know whether the analytical procedure was sensitive enough to identify traces of drugs; this is particularly important when the urine sample(s) of the subject was positive and the hair sample(s) was negative. It has been accepted in the forensic community that a negative hair result cannot exclude the administration of a particular drug, or one of its precursors and the negative findings should not overrule a positive urine result. Nevertheless, the negative hair findings can, on occasion, cast doubt on the positive urine analysis, resulting in substantial legal debate and various consequences for the subject. The concept of minimal detectable dosage in hair is of interest to document the negative findings, but limited data is currently available in the scientific literature. Such data includes cocaine, codeine, ketamine, some benzodiazepines and some unusual compounds. Until laboratories will have sensitive enough methodologies to detect a single use of drug, care should be taken to compare urine and hair findings.
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Affiliation(s)
- Pascal Kintz
- X-Pertise Consulting, 84 route de Saverne, 67205 Oberhausbergen, France.
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19
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Simultaneous separation and determination of 16 testosterone and nandrolone esters in equine plasma using ultra high performance liquid chromatography–tandem mass spectrometry for doping control. J Chromatogr A 2011; 1218:3982-93. [DOI: 10.1016/j.chroma.2011.04.087] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2011] [Revised: 04/27/2011] [Accepted: 04/30/2011] [Indexed: 11/20/2022]
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20
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Hair: a complementary source of bioanalytical information in forensic toxicology. Bioanalysis 2011; 3:67-79. [PMID: 21175368 DOI: 10.4155/bio.10.171] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Hair has been used for years in the assessment and documentation of human exposure to drugs, as it presents characteristics that make it extremely valuable for this purpose, namely the fact that sample collection is performed in a noninvasive manner, under close supervision, the possibility of collecting a specimen reflecting a similar timeline in the case of claims or suspicion of a leak in the chain of custody, and the increased window of detection for the drugs. For these reasons, testing for drugs in hair provides unique and useful information in several fields of toxicology, from which the most prominent is the possibility of studying individual drug use histories by means of segmental analysis. This paper will review the unique role of hair as a complementary sample in documenting human exposure to drugs in the fields of clinical and forensic toxicology and workplace drug testing.
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Applicability of a yeast bioassay in the detection of steroid esters in hair. Anal Bioanal Chem 2010; 399:1031-9. [DOI: 10.1007/s00216-010-4401-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2010] [Revised: 10/27/2010] [Accepted: 10/27/2010] [Indexed: 10/18/2022]
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Abstract
Nandrolone or nortestosterone, an anabolic-androgenic steroid, has been prohibited by doping control regulations for more than 30 years. Although its main metabolism in the human body was already known at that time, and detection of its misuse by gas or liquid chromatographic separation with mass spectrometric detection is straightforward, many interesting aspects regarding this doping agent have appeared since.Over the years, nandrolone preparations have kept their position among the prohibited substances that are most frequently detected in WADA-accredited laboratories. Their forms of application range from injectable fatty acid esters to orally administered nandrolone prohormones. The long detection window for nandrolone ester preparations and the appearance of orally available nandrolone precursors have changed the pattern of misuse.At the same time, more refined analytical methods with lowered detection limits led to new insights into the pharmacology of nandrolone and revelation of its natural production in the body.Possible contamination of nutritional supplements with nandrolone precursors, interference of nandrolone metabolism by other drugs and rarely occurring critical changes during storage of urine samples have to be taken into consideration when interpreting an analytical finding.A set of strict identification criteria, including a threshold limit, is applied to judge correctly an analytical finding of nandrolone metabolites. The possible influence of interfering drugs, urine storage or natural production is taken into account by applying appropriate rules and regulations.
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Affiliation(s)
- Peter Hemmersbach
- Norwegian Doping Control Laboratory, Oslo University Hospital, NO-0514, Oslo, Norway.
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Regal P, Nebot C, Vázquez B, Cepeda A, Fente C. Determination of the hormonal growth promoter 17α-methyltestosterone in food-producing animals: Bovine hair analysis by HPLC–MS/MS. Meat Sci 2010; 84:196-201. [DOI: 10.1016/j.meatsci.2009.08.047] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2009] [Revised: 08/17/2009] [Accepted: 08/21/2009] [Indexed: 11/29/2022]
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24
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Testosterone Concentrations in Hair of Hypogonadal Men With and Without Testosterone Replacement Therapy. Ther Drug Monit 2009; 31:779-82. [DOI: 10.1097/ftd.0b013e3181c004f1] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Shen M, Xiang P, Yan H, Shen B, Wang M. Analysis of anabolic steroids in hair: time courses in guinea pigs. Steroids 2009; 74:773-8. [PMID: 19397917 DOI: 10.1016/j.steroids.2009.04.008] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2008] [Revised: 04/08/2009] [Accepted: 04/16/2009] [Indexed: 11/24/2022]
Abstract
Sensitive, specific, and reproducible methods for the quantitative determination of eight anabolic steroids in guinea pig hair have been developed using LC/MS/MS and GC/MS/MS. Methyltestosterone, stanozolol, methandienone, nandrolone, trenbolone, boldenone, methenolone and DHEA were administered intraperitoneally in guinea pigs. After the first injection, black hair segments were collected on shaved areas of skin. The analysis of these segments revealed the distribution of anabolic steroids in the guinea pig hair. The major components in hair are the parent anabolic steroids. The time courses of the concentrations of the steroids in hair (except methenolone, which does not deposit in hair) demonstrated that the peak concentrations were reached on days 2-4, except stanozolol, which peaked on day 10 after administration. The concentrations in hair appeared to be related to the physicochemical properties of the drug compound and to the dosage. These studies on the distribution of drugs in the hair shaft and on the time course of their concentration changes provide information relevant to the optimal time and method of collecting hair samples. Such studies also provide basic data that will be useful in the application of hair analysis in the control of doping and in the interpretation of results.
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Affiliation(s)
- Min Shen
- Department of Forensic Toxicology, Institute of Forensic Sciences, Ministry of Justice, Shanghai Key laboratory of Forensic Medicine, Shanghai, PR China.
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26
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Pozo OJ, Deventer K, Van Eenoo P, Rubens R, Delbeke FT. Quantification of testosterone undecanoate in human hair by liquid chromatography-tandem mass spectrometry. Biomed Chromatogr 2009; 23:873-80. [DOI: 10.1002/bmc.1199] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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27
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Bin Bisher AA. Histopathological Evidences of the Nephritic PathologicalAlterationsInduced by the Anabolic Androgenic Drug (Sustanon) in Male Guinea Pigs (Cavia porcellus). ACTA ACUST UNITED AC 2009. [DOI: 10.3923/jbs.2009.514.523] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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28
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Anielski P. Hair analysis of anabolic steroids in connection with doping control-results from horse samples. JOURNAL OF MASS SPECTROMETRY : JMS 2008; 43:1001-1008. [PMID: 18563854 DOI: 10.1002/jms.1446] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Doping control of anabolic substances is normally carried out with urine samples taken from athletes and horses. Investigation of alternative specimens, e.g. hair samples, is restricted to special cases, but can also be worthwhile, in addition to urine analysis. Moreover, hair material is preferred in cases of limited availability or complicated collection of urine samples, e.g. from horses. In this work, possible ways of interpretation of analytical results in hair samples are discussed and illustrated by practical experiences. The results demonstrate the applicability of hair analysis to detect anabolic steroids and also to obtain further information about previous abuse. Moreover, the process of incorporation of steroids into hairs is described and the consequences on interpretation are discussed, e.g. on the retrospective estimation of the application date. The chosen examples deal with the detection of the anabolic agent testosterone propionate. Hair samples of an application study, as well as a control sample taken from a racing horse, were referred to. Hair material was investigated by a screening procedure including testosterone, nandrolone and several esters (testosterone propionate, phenylpropionate, decanoate, undecanoate, cypionate; nandrolone decanoate, dodecanoate and phenylpropionate; limits of detection (LODs) between 0.1 and 5.0 pg/mg). Confirmation of testosterone propionate (LOD 0.1 pg/mg) was carried out by an optimised sample preparation. Trimethylsilyl (TMS) and tert-butyl dimethylsilyl derivatives were detected by gas chromatography-high-resolution mass spectrometry (GC-HRMS) and gas chromatography-tandem mass spectrometry (GC-MS/MS).
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Affiliation(s)
- P Anielski
- Institute of Doping Analysis and Sports Biochemistry, Dresdner Strasse 12, D-01731 Kreischa, Germany.
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29
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Multivariate optimization of a derivatisation procedure for the simultaneous determination of nine anabolic steroids by gas chromatography coupled with mass spectrometry. J Chromatogr A 2008; 1190:278-85. [DOI: 10.1016/j.chroma.2008.02.100] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2008] [Revised: 02/20/2008] [Accepted: 02/22/2008] [Indexed: 11/22/2022]
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30
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Gambelunghe C, Sommavilla M, Ferranti C, Rossi R, Aroni K, Manes N, Bacci M. Analysis of anabolic steroids in hair by GC/MS/MS. Biomed Chromatogr 2007; 21:369-75. [PMID: 17294499 DOI: 10.1002/bmc.763] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A simple and sensitive gas chromatography/tandem mass spectrometry (GC/MS/MS) method is described for the detection of anabolic steroids, usually found in keratin matrix at very low concentrations. Hair samples from seven athletes who spontaneously reported their abuse of anabolic steroids, and in a single case cocaine, were analyzed for methyltestosterone, nandrolone, boldenone, fluoxymesterolone, cocaine and its metabolite benzoylecgonine. Anabolic steroids were determinate by digestion of hair samples in 1 m NaOH for 15 min at 95 degrees C. After cooling, samples were purificated by solid-phase and liquid-liquid extraction, then anabolic steroids were converted to their trimethylsilyl derivative and finally analyzed by GC/MS/MS. For detection of cocaine and benzoylecgonine, hair samples were extracted with methanol in an ultrasonic bath for 2 h at 56 degrees C then overnight in a thermostatic bath at the same temperature. After the incubation, methanol was evaporated to dryness, and benzoylecgonine was converted to its trimethylsilyl derivative prior of GC/MS/MS analysis. Results obtained are in agreement with the athletes' reports, confirming that hair is a valid biological matrix to establish long-term intake of drugs.
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Affiliation(s)
- C Gambelunghe
- Department of Clinical and Experimental Medicine, Division of Legal and Sports Medicine, University of Perugia, Italy.
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31
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Boyer S, Garcia P, Popot MA, Steiner V, Lesieur M. Detection of testosterone propionate administration in horse hair samples. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 852:684-8. [PMID: 17383946 DOI: 10.1016/j.jchromb.2007.02.046] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2006] [Revised: 02/21/2007] [Accepted: 02/22/2007] [Indexed: 11/28/2022]
Abstract
A sensitive and specific method has been developed to detect semi-quantitatively testosterone in horse hair samples. The method involved a washing step with sodium dodecylsulfate aqueous solution. The mane and tail hair samples (100mg) were dissolved in 1 mL of sodium hydroxide for 15 min at 95 degrees C in the presence of d3-boldenone used as internal standard. The next three steps involved diethyl ether extraction and a solid phase extraction on Isolute C18 (EC) cartridges eluted with methanol. The residue was derivatized by adding 100 microL of acetonitrile and 30 microL of PFPA then incubating for 15 min at 60 degrees C. After evaporation, 30 microL of hexane was added and 2.5 microL was injected into the column (a bonded phase fused silica capillary column DB5MS, 30 m x 0.25 mm i.d. x 0.25 microm film thickness) of a Trace GC chromatograph. In order to improve the sensitivity of the method, damping gas flow has been optimized. Testosterone was identified in MS(2) full scan mode on the Polaris Q instrument. The assay was capable of detecting less than 1 pg mg(-1). The recovery was close to 90%. The analysis of tail and mane samples collected from a gelding horse having received a single dose of testosterone propionate (1 mg kg(-1)) showed the presence of testosterone in the range of 1-6 pg mg(-1) in hair collected during 5 months after administration.
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Affiliation(s)
- S Boyer
- LCH 15 rue de Paradis, 91370 Verrières le Buisson, France
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32
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Saudan C, Baume N, Robinson N, Avois L, Mangin P, Saugy M. Testosterone and doping control. Br J Sports Med 2006; 40 Suppl 1:i21-4. [PMID: 16799097 PMCID: PMC2657495 DOI: 10.1136/bjsm.2006.027482] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
BACKGROUND AND OBJECTIVES Anabolic steroids are synthetic derivatives of testosterone, modified to enhance its anabolic actions (promotion of protein synthesis and muscle growth). They have numerous side effects, and are on the International Olympic Committee's list of banned substances. Gas chromatography-mass spectrometry allows identification and characterisation of steroids and their metabolites in the urine but may not distinguish between pharmaceutical and natural testosterone. Indirect methods to detect doping include determination of the testosterone/epitestosterone glucuronide ratio with suitable cut-off values. Direct evidence may be obtained with a method based on the determination of the carbon isotope ratio of the urinary steroids. This paper aims to give an overview of the use of anabolic-androgenic steroids in sport and methods used in anti-doping laboratories for their detection in urine, with special emphasis on doping with testosterone. METHODS Review of the recent literature of anabolic steroid testing, athletic use, and adverse effects of anabolic-androgenic steroids. RESULTS Procedures used for detection of doping with endogenous steroids are outlined. The World Anti-Doping Agency provided a guide in August 2004 to ensure that laboratories can report, in a uniform way, the presence of abnormal profiles of urinary steroids resulting from the administration of testosterone or its precursors, androstenediol, androstenedione, dehydroepiandrosterone or a testosterone metabolite, dihydrotestosterone, or a masking agent, epitestosterone. CONCLUSIONS Technology developed for detection of testosterone in urine samples appears suitable when the substance has been administered intramuscularly. Oral administration leads to rapid pharmacokinetics, so urine samples need to be collected in the initial hours after intake. Thus there is a need to find specific biomarkers in urine or plasma to enable detection of long term oral administration of testosterone.
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Affiliation(s)
- C Saudan
- Swiss Laboratory for Doping Analyses, Institute of Legal Medicine, Lausanne, Switzerland.
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Pragst F, Balikova MA. State of the art in hair analysis for detection of drug and alcohol abuse. Clin Chim Acta 2006; 370:17-49. [PMID: 16624267 DOI: 10.1016/j.cca.2006.02.019] [Citation(s) in RCA: 748] [Impact Index Per Article: 41.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2005] [Revised: 01/11/2006] [Accepted: 02/08/2006] [Indexed: 12/24/2022]
Abstract
Hair differs from other materials used for toxicological analysis because of its unique ability to serve as a long-term storage of foreign substances with respect to the temporal appearance in blood. Over the last 20 years, hair testing has gained increasing attention and recognition for the retrospective investigation of chronic drug abuse as well as intentional or unintentional poisoning. In this paper, we review the physiological basics of hair growth, mechanisms of substance incorporation, analytical methods, result interpretation and practical applications of hair analysis for drugs and other organic substances. Improved chromatographic-mass spectrometric techniques with increased selectivity and sensitivity and new methods of sample preparation have improved detection limits from the ng/mg range to below pg/mg. These technical advances have substantially enhanced the ability to detect numerous drugs and other poisons in hair. For example, it was possible to detect previous administration of a single very low dose in drug-facilitated crimes. In addition to its potential application in large scale workplace drug testing and driving ability examination, hair analysis is also used for detection of gestational drug exposure, cases of criminal liability of drug addicts, diagnosis of chronic intoxication and in postmortem toxicology. Hair has only limited relevance in therapy compliance control. Fatty acid ethyl esters and ethyl glucuronide in hair have proven to be suitable markers for alcohol abuse. Hair analysis for drugs is, however, not a simple routine procedure and needs substantial guidelines throughout the testing process, i.e., from sample collection to results interpretation.
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Affiliation(s)
- Fritz Pragst
- Institute of Legal Medicine, University Hospital Charité, Hittorfstr. 18, D-14195 Berlin, Germany.
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Balíková M. HAIR ANALYSIS FOR DRUGS OF ABUSE. PLAUSIBILITY OF INTERPRETATION. Biomed Pap Med Fac Univ Palacky Olomouc Czech Repub 2005. [DOI: 10.5507/bp.2005.026] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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35
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Buisson C, Hebestreit M, Weigert AP, Heinrich K, Fry H, Flenker U, Banneke S, Prevost S, Andre F, Schaenzer W, Houghton E, Le Bizec B. Application of stable carbon isotope analysis to the detection of 17β-estradiol administration to cattle. J Chromatogr A 2005; 1093:69-80. [PMID: 16233872 DOI: 10.1016/j.chroma.2005.07.042] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2005] [Revised: 07/12/2005] [Accepted: 07/14/2005] [Indexed: 10/25/2022]
Abstract
The use of anabolic agents in food producing animals is prohibited within the EU since 1988 (96/22/EC directive). The control of the illegal use of natural steroid hormones in cattle is still an exciting analytical challenge as far as no definitive method and non-ambiguous analytical criteria are available. The ability of gas chromatography/combustion/isotope ratio mass spectrometry (GC/C/IRMS) to demonstrate the administration of 17beta-estradiol to bovine has been investigated in this paper. By comparison of 13C/12C isotopic ratio of main urinary estradiol metabolite, i.e. 17alpha-estradiol, with two endogenous reference compounds (ERCs), i.e. dehydroepiandrosterone (DHEA) and 5-androstene-3beta,17alpha-diol, the differentiation of estradiol metabolite origin, either endogenous or exogenous, has been proved to be achievable. After treatment, the delta(13)C(VPDB)-values of 17alpha-estradiol reached -27 per thousand to -29 per thousand, whereas delta13CVPDB-values of DHEA remained between -13 per thousand and -20 per thousand depending on the diet, maize and grass, respectively. A significant difference of delta13CVPDB between ERCs and 17alpha-estradiol was measurable over a period of 2 weeks after estradiol ester administration to the animal.
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Affiliation(s)
- C Buisson
- LABERCA, Ecole Nationale Vétérinaire de Nantes, Route de Gachet, Atlanpôle La Chantrerie, BP 50707, 44087 Nantes Cedex 03, France
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Gonzalo-Lumbreras R, García-Miguens MA, Izquierdo-Hornillos R. HPLC method development for testosterone propionate and cipionate in oil-based injectables. J Pharm Biomed Anal 2005; 38:757-62. [PMID: 15967305 DOI: 10.1016/j.jpba.2005.02.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2004] [Revised: 02/03/2005] [Accepted: 02/04/2005] [Indexed: 11/17/2022]
Abstract
Two isocratic liquid chromatographic methods for the determination of testosterone propionate (TP) and cipionate (TC) in oil-based injectables using methyltestosterone and bolasterone as internal standards, respectively, have been developed and validated. Mobile phases 57% water:acetonitrile 43% (v:v) and 54% water:acetonitrile 46% (v:v) were used for TP and TC, respectively. For both methods, a bonded-silica Luna CN (250 mm x 4.6 mm i.d., 5 microm) (25 degrees C) column, a flow-rate 1 ml min(-1) and UV absorbance detection at 245 nm were used and two separations up to base line were achieved. Prior to HPLC analysis, sample preparation was required, including extraction of TP and TC from oil-based injectables using the surfactant sodium dodecyl sulphate.
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Affiliation(s)
- R Gonzalo-Lumbreras
- Department of Analytical Chemistry, Faculty of Chemistry, Universidad Complutense, 28040 Madrid, Spain
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37
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Hooijerink H, Lommen A, Mulder P, van Rhijn J, Nielen M. Liquid chromatography–electrospray ionisation-mass spectrometry based method for the determination of estradiol benzoate in hair of cattle. Anal Chim Acta 2005. [DOI: 10.1016/j.aca.2004.07.049] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Shimada K, Mitamura K, Higashi T. Gas chromatography and high-performance liquid chromatography of natural steroids. J Chromatogr A 2001; 935:141-72. [PMID: 11762773 DOI: 10.1016/s0021-9673(01)00943-8] [Citation(s) in RCA: 124] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
This review article underlines the importance of gas chromatography (GC), high-performance liquid chromatography (HPLC) and their hyphenated techniques using mass spectrometry (MS) for the determination of natural steroids, especially in human biological fluids. Steroids are divided into eight categories based on their structures and functions, and recent references using the above methodologies for the analysis of these steroids are cited. GC and GC-MS are commonly used for the determination of volatile steroids. Although HPLC is a widely used analytical method for the determination of steroids including the conjugated type in biological fluids, LC-MS is considered to be the most promising one for this purpose because of its sensitivity, specificity and versatility.
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Affiliation(s)
- K Shimada
- Faculty of Pharmaceutical Sciences, Kanazawa University, Japan.
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40
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Kintz P, Cirimele V, Dumestre-Toulet V, Ludes B. Doping control for nandrolone using hair analysis. J Pharm Biomed Anal 2001; 24:1125-30. [PMID: 11248508 DOI: 10.1016/s0731-7085(00)00570-7] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A sensitive, specific and reproducible method for the quantitative determination of nandrolone in human hair has been developed. The sample preparation involved a decontamination step of the hair with methylene chloride. The hair sample (about 100 mg) was solubilized in 1 ml NaOH IN, 15 min at 95 degrees C, in presence of 10 ng nandrolone-d(3) used as an internal standard. The homogenate was neutralized and extracted using consecutively a solid phase (Isolute C18) and a liquid--liquid (pentane) extraction. The residue was derivatized by adding 50 microl MSTFA/NH4I/2-mercaptoethanol (1000:2:5; v/v/v), then incubated for 20 min at 60 degrees C. A 4-microl aliquot of the derivatized extract was injected into the column (HP5-MS capillary column, 5% phenyl--95% methylsiloxane, 30 m x 0.25 mm i.d. x 0.25 mm film thickness) of a Hewlett Packard (Palo Alto, CA) gas chromatograph (6890 Series) via a Hewlett Packard (7673) autosampler. The assay was capable of detecting 0.5 pg of nandrolone per mg of hair when approximately 100 mg of hair were processed. Linearity was observed for nandrolone concentrations ranging from 1 to 50 pg/mg with a correlation coefficient of 0.997. Intra-day and between-day precisions at 10 pg/mg were 11.2 and 15.1%, respectively, with an extraction recovery of 81.7%. The analysis of three strands of hair, obtained from three bodybuilders, revealed the presence of nandrolone at the concentration of 1, 3.5 and 7.5 pg/mg.
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Affiliation(s)
- P Kintz
- Institut de Médecine Légale, Universite Louis Pasteur, 11 rue Humann, F-67000 Strasbourg, France.
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Abstract
The actual antidoping control rules applied in sports (as established by the International Olympic Committee and the International Sport Federations) state that a positive case is chemically established by the unequivocal detection of a forbidden parent molecule and/or any of its metabolite(s) in urine, no matter the amounts which were administered and when the drug was taken. Screening is accomplished most of the time by using GC-MS procedures. These have been optimized to detect most if not all of the forbidden compounds which are put on a list. Recently, attempts have been made on scalp hair to demonstrate the value of this matrix as a possible means for differentiating between therapeutic use and doping abuse. In particular, GC-mass selective detector and GC-high resolution MS were successfully applied to treated animals and body-builders for anabolic agents (steroids and beta-2-agonists) at high sensitivity detection (low ng/g level). Naturally occurring molecules, like testosterone and its metabolites, could also be differentiated from their synthetic counterparts. Positive cases are more often challenged in courts and retrospectivity in time of the drug(s) intake is becoming an important issue for evaluating the responsibility of the person. This is can be based on hair analyses if the drugs have been taken at regular intervals. Stimulants and narcotics are often used in sports like drug of abuse in the ordinary social contexts. On the other hand, anabolic agents, when taken to improve the physical performances, follow complex regimens with the mixing of various formulas and dosages. Scalp hair references ranges for these as well as for endogenous substances still wait to be established statistically for competing, well-trained athletes. The incorporation rate into blond or gray hair is poorer than that of dark colored hair raising the question of individuals equality against the controls, a very important matter of concern for the sport's governing bodies. The frequency of hair cutting and short hair cuts necessary to gain speed in specific sports like swimming are other critical factors. On the other hands, irregular hair growth, associated with the washout effect through multiple washing and staining processes over expanded time intervals can cause concentrating or diluting effects. So far, a minority of prohibited substances could be detected in scalp hair with the sensitivity and specificity required in the context of the sport's activities. From the above, clear limitations of the usefulness of hair analysis in doping control analysis are obvious until a lot more data relevant to this particular field have been collected.
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Affiliation(s)
- L Rivier
- Swiss Laboratory for the Analysis of Doping, Institute of Legal Medicine of the University, Lausanne, Switzerland
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