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Shi W, Shahri EE, Es’hagi Z, Zhao J. Preyssler heteropolyacid supported on magnetic silica for hollow fiber solid-phase microextraction of anti-hypertensive drugs in human hair. CHEMICAL PAPERS 2021. [DOI: 10.1007/s11696-021-01812-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Hand RA, Bassindale T, Turner N, Morgan G. Application of comprehensive 2D chromatography in the anti-doping field: Sample identification and quantification. J Chromatogr B Analyt Technol Biomed Life Sci 2021; 1178:122584. [PMID: 34224963 DOI: 10.1016/j.jchromb.2021.122584] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 01/29/2021] [Accepted: 02/01/2021] [Indexed: 12/17/2022]
Abstract
Anti-doping analysis requires an exceptional level of accuracy and precision given the stakes that are at play. Current methods rely on the application of chromatographic techniques linked with mass spectrometry to provide this. However, despite the effectiveness of these techniques in achieving good selectivity and specificity, some issues still exist. In order to reach the minimum required performance level as set by WADA, labs commonly use selective monitoring by quadrupole mass spectrometry. This can be potentially fooled through the use of masking agents or by moving the peaks, as often only a small portion of the spectrum is used for analysis. Further issues exist in the inability to detect new or modified compounds, or to reanalyse samples/spectra. One technique that could overcome these problems is that of comprehensive 2D chromatography. Here a second separation column is employed to generate greater separative power. Compared to conventional separation, GCxGC allows for a greater peak capacity (i.e., number of peaks that can be resolved within a given time) and greater separation of coeluting compounds, which makes the technique promising for the complex task required in anti-doping. When combined with Time of Flight Mass Spectrometry this technique demonstrates vast potential allowing for full mass range datasets to be obtained for retroactive analysis. Similarly, LCxLC provides improvements in resolving power compared to its 1D counterpart and can be used both online as part of the analysis or offline solely as a purification step. In this review we summarise the work in this field so far, how comprehensive chromatography has been applied to anti-doping studies, and discuss the future application for this technique.
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Affiliation(s)
- Rachel A Hand
- School of Pharmacy, De Montfort University, Leicester LE2 9BH, UK
| | - Thomas Bassindale
- Department of Biosciences and Chemistry, Sheffield Hallam University, Sheffield S1 1WB, UK
| | - Nicholas Turner
- School of Pharmacy, De Montfort University, Leicester LE2 9BH, UK
| | - Geraint Morgan
- School of Physical Sciences, The Open University, Milton Keynes MK7 6AA, UK.
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Locatelli M, Tartaglia A, D'Ambrosio F, Ramundo P, Ulusoy H, Furton K, Kabir A. Biofluid sampler: A new gateway for mail-in-analysis of whole blood samples. J Chromatogr B Analyt Technol Biomed Life Sci 2020; 1143:122055. [DOI: 10.1016/j.jchromb.2020.122055] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 03/06/2020] [Accepted: 03/08/2020] [Indexed: 10/24/2022]
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Li I, Yang W, Chou C, Chen Y, Kuo S, Wang S. Analysis of steroid hormones in shell eggs from layer breeds common to Taiwan by liquid chromatography-tandem mass spectrometry. Food Sci Nutr 2019; 7:2319-2326. [PMID: 31367360 PMCID: PMC6657713 DOI: 10.1002/fsn3.1074] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Accepted: 05/09/2019] [Indexed: 11/09/2022] Open
Abstract
Steroid hormones are often used in animal agriculture but are currently banned for use in domesticated fowl because residual hormones could be present in eggs for human consumption. Egg samples from eight common commercial poultry layer breeds (Hy-Line W-36, Hy-Line Brown, ISA-White, ISA-Brown, Lohnmann Ultra-Lite, Lohnmann-Brown, Hisex White, Hisex Brown) in Taiwan were screened for a combination of 15 natural and synthetic steroid hormones by liquid chromatography-tandem mass spectrometry (LC-MS/MS) for consumer assurance. Only natural hormones such as progesterone, 4-androstene-3,17-dione, and testosterone were detected. Regarding each breed, the interaction effect (age × shell color), main effect (age or shell color), and blocking effect (lighting system) were further analyzed by using 2 × 2 factorial arrangement of treatment in a randomized block design. We also discovered associations between yolk steroid hormone levels and laying hen age, as well as lighting conditions. Additionally, we found a correlation between hormone levels and eggshell color, suggesting a potential role in brown pigmentation. Ultimately, we concluded that detectable steroid hormone levels in eggs were not a consumer health risk. Furthermore, these data provide empirical hormone concentrations in various types of commercial layer breeds for future research.
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Affiliation(s)
- I‐Chen Li
- Zoonoses Research Center and School of Veterinary MedicineNational Taiwan UniversityTaipeiTaiwan
| | - Wen‐Yuan Yang
- Department of Basic Sciences, College of Veterinary MedicineMississippi State UniversityStarkvilleMississippi
| | - Chung‐Hsi Chou
- Zoonoses Research Center and School of Veterinary MedicineNational Taiwan UniversityTaipeiTaiwan
| | - Yi‐Chen Chen
- Department of Animal Science and TechnologyNational Taiwan UniversityTaipeiTaiwan
| | - Su‐Lien Kuo
- Technical Service CenterNational Animal Industry FoundationPingtung CityTaiwan
| | - Sheng‐Yao Wang
- Department of Animal Science and TechnologyNational Taiwan UniversityTaipeiTaiwan
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Qu X, Su C, Zheng N, Li S, Meng L, Wang J. A Survey of Naturally-Occurring Steroid Hormones in Raw Milk and the Associated Health Risks in Tangshan City, Hebei Province, China. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2017; 15:ijerph15010038. [PMID: 29278385 PMCID: PMC5800137 DOI: 10.3390/ijerph15010038] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/08/2017] [Revised: 12/17/2017] [Accepted: 12/18/2017] [Indexed: 12/30/2022]
Abstract
In recent years, high levels of hormone residue in food, capable of damaging the health of consumers, have been recorded frequently. In this study, 195 raw milk samples were obtained from Tangshan City, China, and the concentrations of 22 steroid hormones were measured by high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS). Cortisol was detected in 12.5% of raw milk samples (mean 0.61 µg/kg; range: <limit of quantification (LOQ)-0.94 µg/kg). Progesterone was detected in 85.9% of raw milk samples (mean 5.12 µg/kg; range: <LOQ-9.04 µg/kg). The concentration of cortisol present in milk was lower than the maximum residue limit defined in Japan (10 µg/kg). Children aged between one and five years were expected to be the at-risk population when exposed to detectable steroid hormone concentrations. Based on the mean and maximum concentrations of progesterone detected in milk, the contribution was 0.85% and 0.9%, and 1.48% and 1.6% of the acceptable daily intake for boys and girls, respectively. These results imply that the concentrations of steroid hormones present in raw milk should not present a health risk for young children.
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Affiliation(s)
- Xueyin Qu
- Ministry of Agriculture-Laboratory of Quality and Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
- College of Animal Science and Technology, Shihezi University, No. 4, the North Road, Shihezi 832002, China.
| | - Chuanyou Su
- Ministry of Agriculture-Laboratory of Quality and Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Nan Zheng
- Ministry of Agriculture-Laboratory of Quality and Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Songli Li
- Ministry of Agriculture-Laboratory of Quality and Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Lu Meng
- Ministry of Agriculture-Laboratory of Quality and Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
| | - Jiaqi Wang
- Ministry of Agriculture-Laboratory of Quality and Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
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Azaryan AA, Temerdashev AZ, Dmitrieva EV. Determination of Meldonium in human urine by HPLC with tandem mass spectrometric detection. JOURNAL OF ANALYTICAL CHEMISTRY 2017. [DOI: 10.1134/s1061934817100033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Desomorphine (Krokodil): An overview of its chemistry, pharmacology, metabolism, toxicology and analysis. Drug Alcohol Depend 2017; 173:59-68. [PMID: 28199917 DOI: 10.1016/j.drugalcdep.2016.12.021] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Revised: 11/09/2016] [Accepted: 12/13/2016] [Indexed: 12/14/2022]
Abstract
BACKGROUND "Krokodil" or "Crocodile" is an illegal homemade desomorphine drug obtained from chemical reactions of commercial codeine drugs with several other powerful and highly toxic chemical agents increasing its addiction and hallucinogenic effects when compared with other morphine analogues. METHODS This paper summarizes a complete review about an old drug called desomorphine (Krokodil), presenting its chemistry, pharmacology, metabolism, toxicology and analysis. RESULTS It is of particular interest and concern because this cheaper injectable semisynthetic opioid drug has been largely used in recent years for recreational purposes in several Eastern European as well as North and South American countries, despite known damage to health that continuous use might induce. These injuries are much stronger and more aggressive than morphine's, infecting and rotting skin and soft tissue to the bone of addicts at the point of injection in less than three years, which, in most cases, evolves to death. On this basis, it is imperative that literature reviews focus on the chemistry, pharmacology, toxicology and analysis of dangerous Krokodil to find strategies for rapid and effective determination to mitigate its adverse effects on addicts and prevent consumption. CONCLUSIONS It is crucial to know the symptoms and consequences of the use of Krokodil, as well as METHODS: for identification and quantification of desomorphine, contaminants and metabolites, which can help the forensic work of diagnosis and propose actions to control and eradicate this great danger to public health around the world.
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In Vitro Metabolic Studies of REV-ERB Agonists SR9009 and SR9011. Int J Mol Sci 2016; 17:ijms17101676. [PMID: 27706103 PMCID: PMC5085709 DOI: 10.3390/ijms17101676] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 09/26/2016] [Indexed: 12/20/2022] Open
Abstract
SR9009 and SR9011 are attractive as performance-enhancing substances due to their REV-ERB agonist effects and thus circadian rhythm modulation activity. Although no pharmaceutical preparations are available yet, illicit use of SR9009 and SR9011 for doping purposes can be anticipated, especially since SR9009 is marketed in illicit products. Therefore, the aim was to identify potential diagnostic metabolites via in vitro metabolic studies to ensure effective (doping) control. The presence of SR9009 could be demonstrated in a black market product purchased over the Internet. Via human liver microsomal metabolic assays, eight metabolites were detected for SR9009 and fourteen metabolites for SR9011 by liquid chromatography–high resolution mass spectrometry (LC–HRMS). Structure elucidation was performed for all metabolites by LC–HRMS product ion scans in both positive and negative ionization mode. Retrospective data analysis was applied to 1511 doping control samples previously analyzed by a full-scan LC–HRMS screening method to verify the presence of SR9009, SR9011 and their metabolites. So far, the presence of neither the parent compound nor the metabolites could be detected in routine urine samples. However, to further discourage use of these potentially harmful compounds, incorporation of SR9009 and SR9011 into screening methods is highly recommended.
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Jurášek M, Göselová S, Mikšátková P, Holubová B, Vyšatová E, Kuchař M, Fukal L, Lapčík O, Drašar P. Highly sensitive avidin-biotin ELISA for detection of nandrolone and testosterone in dietary supplements. Drug Test Anal 2016; 9:553-560. [DOI: 10.1002/dta.2005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2015] [Revised: 05/10/2016] [Accepted: 05/12/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Michal Jurášek
- University of Chemistry and Technology Prague; Prague Czech Republic
| | - Sandra Göselová
- University of Chemistry and Technology Prague; Prague Czech Republic
| | - Petra Mikšátková
- University of Chemistry and Technology Prague; Prague Czech Republic
| | - Barbora Holubová
- University of Chemistry and Technology Prague; Prague Czech Republic
| | - Eva Vyšatová
- Czech Agriculture and Food Inspection Authority; Prague Czech Republic
| | - Martin Kuchař
- University of Chemistry and Technology Prague; Prague Czech Republic
| | - Ladislav Fukal
- University of Chemistry and Technology Prague; Prague Czech Republic
| | - Oldřich Lapčík
- University of Chemistry and Technology Prague; Prague Czech Republic
| | - Pavel Drašar
- University of Chemistry and Technology Prague; Prague Czech Republic
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Cohen PA, Venhuis BJ, Brandt SD. Advancing supplement science: challenges and solutions. Drug Test Anal 2016; 8:e1–3. [DOI: 10.1002/dta.1953] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2015] [Revised: 12/23/2015] [Accepted: 12/25/2015] [Indexed: 12/21/2022]
Affiliation(s)
| | - Bastiaan J. Venhuis
- National Institute for Public Health and the Environment (RIVM) A. van Leeuwenhoeklaan 9 3721 MA Bilthoven the Netherlands
| | - Simon D. Brandt
- School of Pharmacy and Biomolecular SciencesLiverpool John Moores University Byrom Street Liverpool L3 3AF UK
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Geldof L, Pozo OJ, Lootens L, Morthier W, Van Eenoo P, Deventer K. In vitro metabolism study of a black market product containing SARM LGD-4033. Drug Test Anal 2016; 9:168-178. [PMID: 26767942 DOI: 10.1002/dta.1930] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 11/05/2015] [Accepted: 11/15/2015] [Indexed: 01/02/2023]
Abstract
Anabolic agents are often used by athletes to enhance their performance. However, use of steroids leads to considerable side effects. Non-steroidal selective androgen receptor modulators (SARMs) are a novel class of substances that have not been approved so far but seem to have a more favourable anabolic/androgenic ratio than steroids and produce fewer side effects. Therefore the use of SARMs has been prohibited since 2008 by the World Anti-Doping Agency (WADA). Several of these SARMs have been detected on the black market. Metabolism studies are essential to identify the best urinary markers to ensure effective control of emerging substances by doping control laboratories. As black market products often contain non-pharmaceutical-grade substances, alternatives for human excretion studies are needed to elucidate the metabolism. A black market product labelled to contain the SARM LGD-4033 was purchased over the Internet. Purity verification of the black market product led to the detection of LGD-4033, without other contaminants. Human liver microsomes and S9 liver fractions were used to perform phase I and phase II (glucuronidation) metabolism studies. The samples of the in vitro metabolism studies were analyzed by gas chromatography-(tandem) mass spectrometry (GC-MS(/MS)), liquid chromatography-high resolution-tandem mass spectrometry (LC-(HR)MS/MS). LC-HRMS product ion scans allowed to identify typical fragment ions for the parent compound and to further determine metabolite structures. In total five metabolites were detected, all modified in the pyrrolidine ring of LGD-4033. The metabolic modifications ranged from hydroxylation combined with keto-formation (M1) or cleavage of the pyrrolidine ring (M2), hydroxylation and methylation (M3/M4) and dihydroxylation (M5). The parent compound and M2 were also detected as glucuronide-conjugates. Copyright © 2016 John Wiley & Sons, Ltd.
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Affiliation(s)
- Lore Geldof
- Doping Control Laboratory (DoCoLab), Ghent University (UGent), Department of Clinical Chemistry, Microbiology and Immunology, Technologiepark 30B, Zwijnaarde, B-9052, Belgium
| | - Oscar J Pozo
- IMIM - Hospital del Mar Medical Research Institute, Bioanalysis Research Group, Doctor Aiguader 88, 08003, Barcelona, Spain
| | - Leen Lootens
- Doping Control Laboratory (DoCoLab), Ghent University (UGent), Department of Clinical Chemistry, Microbiology and Immunology, Technologiepark 30B, Zwijnaarde, B-9052, Belgium
| | - Wouter Morthier
- Doping Control Laboratory (DoCoLab), Ghent University (UGent), Department of Clinical Chemistry, Microbiology and Immunology, Technologiepark 30B, Zwijnaarde, B-9052, Belgium
| | - Peter Van Eenoo
- Doping Control Laboratory (DoCoLab), Ghent University (UGent), Department of Clinical Chemistry, Microbiology and Immunology, Technologiepark 30B, Zwijnaarde, B-9052, Belgium
| | - Koen Deventer
- Doping Control Laboratory (DoCoLab), Ghent University (UGent), Department of Clinical Chemistry, Microbiology and Immunology, Technologiepark 30B, Zwijnaarde, B-9052, Belgium
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Kuuranne T, Saugy M, Baume N. Confounding factors and genetic polymorphism in the evaluation of individual steroid profiling. Br J Sports Med 2015; 48:848-55. [PMID: 24764553 PMCID: PMC4033181 DOI: 10.1136/bjsports-2014-093510] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In the fight against doping, steroid profiling is a powerful tool to detect drug misuse with endogenous anabolic androgenic steroids. To establish sensitive and reliable models, the factors influencing profiling should be recognised. We performed an extensive literature review of the multiple factors that could influence the quantitative levels and ratios of endogenous steroids in urine matrix. For a comprehensive and scientific evaluation of the urinary steroid profile, it is necessary to define the target analytes as well as testosterone metabolism. The two main confounding factors, that is, endogenous and exogenous factors, are detailed to show the complex process of quantifying the steroid profile within WADA-accredited laboratories. Technical aspects are also discussed as they could have a significant impact on the steroid profile, and thus the steroid module of the athlete biological passport (ABP). The different factors impacting the major components of the steroid profile must be understood to ensure scientifically sound interpretation through the Bayesian model of the ABP. Not only should the statistical data be considered but also the experts in the field must be consulted for successful implementation of the steroidal module.
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Affiliation(s)
- Tiia Kuuranne
- Doping Control Laboratory, United Medix Laboratories Ltd., , Helsinki, Finland
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Stevenson BJ, Waller CC, Ma P, Li K, Cawley AT, Ollis DL, McLeod MD. Pseudomonas aeruginosaarylsulfatase: a purified enzyme for the mild hydrolysis of steroid sulfates. Drug Test Anal 2015; 7:903-11. [DOI: 10.1002/dta.1782] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 02/04/2015] [Accepted: 02/04/2015] [Indexed: 01/09/2023]
Affiliation(s)
- Bradley J. Stevenson
- Research School of Chemistry; Australian National University; Canberra ACT 2601 Australia
| | - Christopher C. Waller
- Research School of Chemistry; Australian National University; Canberra ACT 2601 Australia
| | - Paul Ma
- Research School of Chemistry; Australian National University; Canberra ACT 2601 Australia
| | - Kunkun Li
- Research School of Chemistry; Australian National University; Canberra ACT 2601 Australia
| | - Adam T. Cawley
- Racing New South Wales - Australian Racing Forensic Laboratory; Sydney NSW 1465 Australia
| | - David L. Ollis
- Research School of Chemistry; Australian National University; Canberra ACT 2601 Australia
| | - Malcolm D. McLeod
- Research School of Chemistry; Australian National University; Canberra ACT 2601 Australia
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Esposito S, Deventer K, Geldof L, Van Eenoo P. In vitromodels for metabolic studies of small peptide hormones in sport drug testing. J Pept Sci 2014; 21:1-9. [DOI: 10.1002/psc.2710] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Revised: 10/03/2014] [Accepted: 10/07/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Simone Esposito
- Doping Control Laboratory (DoCoLab), Department of Clinical Chemistry, Microbiology and Immunology; Ghent University (UGent); Technologiepark 30 B 9052 Zwijnaarde Belgium
| | - Koen Deventer
- Doping Control Laboratory (DoCoLab), Department of Clinical Chemistry, Microbiology and Immunology; Ghent University (UGent); Technologiepark 30 B 9052 Zwijnaarde Belgium
| | - Lore Geldof
- Doping Control Laboratory (DoCoLab), Department of Clinical Chemistry, Microbiology and Immunology; Ghent University (UGent); Technologiepark 30 B 9052 Zwijnaarde Belgium
| | - Peter Van Eenoo
- Doping Control Laboratory (DoCoLab), Department of Clinical Chemistry, Microbiology and Immunology; Ghent University (UGent); Technologiepark 30 B 9052 Zwijnaarde Belgium
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Crutchfield KE. Managing Patients With Neurologic Disorders Who Participate in Sports Activities. Continuum (Minneap Minn) 2014; 20:1657-66. [DOI: 10.1212/01.con.0000458968.40648.6f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Thevis M, Schänzer W. Analytical approaches for the detection of emerging therapeutics and non-approved drugs in human doping controls. J Pharm Biomed Anal 2014; 101:66-83. [DOI: 10.1016/j.jpba.2014.05.020] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 05/05/2014] [Accepted: 05/06/2014] [Indexed: 01/19/2023]
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Waller CC, McLeod MD. A simple method for the small scale synthesis and solid-phase extraction purification of steroid sulfates. Steroids 2014; 92:74-80. [PMID: 25286236 DOI: 10.1016/j.steroids.2014.09.006] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 08/27/2014] [Accepted: 09/22/2014] [Indexed: 10/24/2022]
Abstract
Steroid sulfates are a major class of steroid metabolite that are of growing importance in fields such as anti-doping analysis, the detection of residues in agricultural produce or medicine. Despite this, many steroid sulfate reference materials may have limited or no availability hampering the development of analytical methods. We report simple protocols for the rapid synthesis and purification of steroid sulfates that are suitable for adoption by analytical laboratories. Central to this approach is the use of solid-phase extraction (SPE) for purification, a technique routinely used for sample preparation in analytical laboratories around the world. The sulfate conjugates of sixteen steroid compounds encompassing a wide range of steroid substitution patterns and configurations are prepared, including the previously unreported sulfate conjugates of the designer steroids furazadrol (17β-hydroxyandrostan[2,3-d]isoxazole), isofurazadrol (17β-hydroxyandrostan[3,2-c]isoxazole) and trenazone (17β-hydroxyestra-4,9-dien-3-one). Structural characterization data, together with NMR and mass spectra are reported for all steroid sulfates, often for the first time. The scope of this approach for small scale synthesis is highlighted by the sulfation of 1μg of testosterone (17β-hydroxyandrost-4-en-3-one) as monitored by liquid chromatography-mass spectrometry (LCMS).
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Affiliation(s)
- Christopher C Waller
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia
| | - Malcolm D McLeod
- Research School of Chemistry, Australian National University, Canberra, ACT 2601, Australia.
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Untargeted profiling of urinary steroid metabolites after testosterone ingestion: opening new perspectives for antidoping testing. Bioanalysis 2014; 6:2523-36. [DOI: 10.4155/bio.14.200] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Aim: Antidoping procedures are expected to greatly benefit from untargeted metabolomic approaches through the discovery of new biomarkers of prohibited substances abuse. Results: Endogenous steroid metabolites were monitored in urine samples from a controlled elimination study of testosterone undecanoate after ingestion. A platform coupling ultra-high pressure LC with high-resolution quadrupole TOF MS was used and high between-subject metabolic variability was successfully handled using a multiblock data analysis strategy. Links between specific subsets of metabolites and influential genetic polymorphisms of the UGT2B17 enzyme were highlighted. Conclusion: This exploratory metabolomic strategy constitutes a first step toward a better understanding of the underlying patterns driving the high interindividual variability of steroid metabolism. Promising biomarkers were selected for further targeted study.
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Lu J, He C, He G, Wang X, Xu Y, Wu Y, Dong Y, Ouyang G. Structural elucidation of new urinary tamoxifen metabolites by liquid chromatography quadrupole time-of-flight mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2014; 49:570-578. [PMID: 25044841 DOI: 10.1002/jms.3375] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Revised: 04/09/2014] [Accepted: 04/10/2014] [Indexed: 06/03/2023]
Abstract
In this study, tamoxifen metabolic profiles were investigated carefully. Tamoxifen was administered to two healthy male volunteers and one female patient suffering from breast cancer. Urinary extracts were analyzed by liquid chromatography quadruple time-of-flight mass spectrometry using full scan and targeted MS/MS techniques with accurate mass measurement. Chromatographic peaks for potential metabolites were selected by using the theoretical [M + H](+) as precursor ion in full-scan experiment and m/z 72, 58 or 44 as characteristic product ions for N,N-dimethyl, N-desmethyl and N,N-didesmethyl metabolites in targeted MS/MS experiment, respectively. Tamoxifen and 37 metabolites were detected in extraction study samples. Chemical structures of seven unreported metabolites were elucidated particularly on the basis of fragmentation patterns observed for these metabolites. Several metabolic pathways containing mono- and di-hydroxylation, methoxylation, N-desmethylation, N,N-didesmethylation, oxidation and combinations were suggested. All the metabolites were detected in the urine samples up to 1 week.
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Affiliation(s)
- Jianghai Lu
- National Anti-doping Laboratory, China Anti-Doping Agency, 1st Anding Road, ChaoYang District, Beijing, 100029, China
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Dvorak J, Baume N, Botré F, Broséus J, Budgett R, Frey WO, Geyer H, Harcourt PR, Ho D, Howman D, Isola V, Lundby C, Marclay F, Peytavin A, Pipe A, Pitsiladis YP, Reichel C, Robinson N, Rodchenkov G, Saugy M, Sayegh S, Segura J, Thevis M, Vernec A, Viret M, Vouillamoz M, Zorzoli M. Time for change: a roadmap to guide the implementation of the World Anti-Doping Code 2015. Br J Sports Med 2014; 48:801-6. [PMID: 24764550 PMCID: PMC4033186 DOI: 10.1136/bjsports-2014-093561] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A medical and scientific multidisciplinary consensus meeting was held from 29 to 30 November 2013 on Anti-Doping in Sport at the Home of FIFA in Zurich, Switzerland, to create a roadmap for the implementation of the 2015 World Anti-Doping Code. The consensus statement and accompanying papers set out the priorities for the antidoping community in research, science and medicine. The participants achieved consensus on a strategy for the implementation of the 2015 World Anti-Doping Code. Key components of this strategy include: (1) sport-specific risk assessment, (2) prevalence measurement, (3) sport-specific test distribution plans, (4) storage and reanalysis, (5) analytical challenges, (6) forensic intelligence, (7) psychological approach to optimise the most deterrent effect, (8) the Athlete Biological Passport (ABP) and confounding factors, (9) data management system (Anti-Doping Administration & Management System (ADAMS), (10) education, (11) research needs and necessary advances, (12) inadvertent doping and (13) management and ethics: biological data. True implementation of the 2015 World Anti-Doping Code will depend largely on the ability to align thinking around these core concepts and strategies. FIFA, jointly with all other engaged International Federations of sports (Ifs), the International Olympic Committee (IOC) and World Anti-Doping Agency (WADA), are ideally placed to lead transformational change with the unwavering support of the wider antidoping community. The outcome of the consensus meeting was the creation of the ad hoc Working Group charged with the responsibility of moving this agenda forward.
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Affiliation(s)
- Jiri Dvorak
- FIFA/F-MARC FIFA-Strasse, , Zurich, Switzerland
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Yi R, Sandhu J, Zhao S, Lam G, Loganathan D, Morrissey B. Detection of efaproxiral (RSR13) and its metabolites in equine by liquid chromatography tandem mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2014; 49:57-67. [PMID: 24446264 DOI: 10.1002/jms.3304] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2013] [Revised: 11/01/2013] [Accepted: 11/04/2013] [Indexed: 06/03/2023]
Abstract
Efaproxiral (RSR 13) is an experimental synthetic allosteric modifier of haemoglobin (Hb) that acts by increasing the release of oxygen from Hb to the surrounding tissues. It has been shown to increase maximum oxygen uptake (VO(2max)) in a canine skeletal muscle model. The ability to increase maximal muscle oxygen uptake makes efaproxiral a potential performance-enhancing agent and is therefore prohibited by the World Anti-Doping Agency. In this study, a method for the detection and elimination of efaproxiral in equine plasma and urine after a 2.5 g intravenous administration of efaproxiral is described. Post administration plasma and urine samples were collected up to 120 h. Efaproxiral was detected up to 120 h in urine and up to 78 h in plasma. In plasma, the peak concentration was 42 µg/ml and detected at 5 min post administration. In urine, the peak concentration was 2.8 mg/ml and detected at 0-1 h post administration. A validated liquid chromatography tandem mass spectrometry method was used for the quantitation of efaproxiral in equine plasma and urine. The limit of detection of the method is 0.05 ng/ml in plasma and 0.1 ng/ml in urine. The method is highly sensitive and specific with good precision, accuracy and recovery. The manuscript also describes the systematic identification of efaproxiral metabolites detected in post administration equine urine samples. The metabolites were identified by use of enhanced mass spectra and enhanced product ion scans. Both positive and negative mode ionizations were utilized for metabolite identification and plausible fragmentation pathways were proposed for the phase 1 metabolite identified. In addition to free efaproxiral, one phase 1 metabolite and two phase 2 metabolites were identified in post administration urine.
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Affiliation(s)
- Rong Yi
- Maxxam Analytics, 8577 Commerce Court, Burnaby, BC, V5A 4N5, Canada
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Goryński K, Bojko B, Nowaczyk A, Buciński A, Pawliszyn J, Kaliszan R. Quantitative structure-retention relationships models for prediction of high performance liquid chromatography retention time of small molecules: endogenous metabolites and banned compounds. Anal Chim Acta 2013; 797:13-9. [PMID: 24050665 DOI: 10.1016/j.aca.2013.08.025] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2013] [Revised: 08/10/2013] [Accepted: 08/13/2013] [Indexed: 12/16/2022]
Abstract
Quantitative structure-retention relationship (QSRR) is a technique capable of improving the identification of analytes by predicting their retention time on a liquid chromatography column (LC) and/or their properties. This approach is particularly useful when LC is coupled with a high-resolution mass spectrometry (HRMS) platform. The main aim of the present study was to develop and describe appropriate QSRR models that provide usable predictive capability, allowing false positive identification to be removed during the interpretation of metabolomics data, while additionally increasing confidence of experimental results in doping control area. For this purpose, a dataset consisting of 146 drugs, metabolites and banned compounds from World Anti-Doping Agency (WADA) lists, was used. A QSRR study was carried out separately on high quality retention data determined by reversed-phase (RP-LC-HRMS) and hydrophilic interaction chromatography (HILIC-LC-HRMS) systems, employing a single protocol for each system. Multiple linear regression (MLR) was applied to construct the linear QSRR models based on a variety of theoretical molecular descriptors. The regression equations included a set of three descriptors for each model: ALogP, BELe6, R2p and ALogP(2), FDI, BLTA96, were used in the analysis of reversed-phase and HILIC column models, respectively. Statistically significant QSRR models (squared correlation coefficient for model fitting, R(2)=0.95 for RP and R(2)=0.84 for HILIC) indicate a strong correlation between retention time and the molecular descriptors. An evaluation of the best correlation models, performed by validation of each model using three tests (leave-one-out, leave-many-out, external tests), demonstrated the reliability of the models. This paper provides a practical and effective method for analytical chemists working with LC/HRMS platforms to improve predictive confidence of studies that seek to identify small molecules.
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Affiliation(s)
- Krzysztof Goryński
- Department of Medicinal Chemistry, Collegium Medicum in Bydgoszcz Nicolaus Copernicus University in Toruń, Jurasza 2, 85-094 Bydgoszcz, Poland; Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
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Pokrywka A, Kaliszewski P, Majorczyk E, Zembroń-Łacny A. Genes in sport and doping. Biol Sport 2013; 30:155-61. [PMID: 24744482 PMCID: PMC3944571 DOI: 10.5604/20831862.1059606] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/11/2013] [Indexed: 11/19/2022] Open
Abstract
Genes control biological processes such as muscle production of energy, mitochondria biogenesis, bone formation, erythropoiesis, angiogenesis, vasodilation, neurogenesis, etc. DNA profiling for athletes reveals genetic variations that may be associated with endurance ability, muscle performance and power exercise, tendon susceptibility to injuries and psychological aptitude. Already, over 200 genes relating to physical performance have been identified by several research groups. Athletes’ genotyping is developing as a tool for the formulation of personalized training and nutritional programmes to optimize sport training as well as for the prediction of exercise-related injuries. On the other hand, development of molecular technology and gene therapy creates a risk of non-therapeutic use of cells, genes and genetic elements to improve athletic performance. Therefore, the World Anti-Doping Agency decided to include prohibition of gene doping within their World Anti-Doping Code in 2003. In this review article, we will provide a current overview of genes for use in athletes’ genotyping and gene doping possibilities, including their development and detection techniques.
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