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Elashnikov R, Khrystonko O, Trelin A, Kuchař M, Švorčík V, Lyutakov O. Label-free SERS-ML detection of cocaine trace in human blood plasma. JOURNAL OF HAZARDOUS MATERIALS 2024; 472:134525. [PMID: 38743978 DOI: 10.1016/j.jhazmat.2024.134525] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 04/22/2024] [Accepted: 05/01/2024] [Indexed: 05/16/2024]
Abstract
The widespread consumption of cocaine poses a significant threat to modern society. The most effective way to combat this problem is to control the distribution of cocaine, based on its accurate and sensitive detection. Here, we proposed the detection of cocaine in human blood plasma using a combination of surface enhanced Raman spectroscopy and machine learning (SERS-ML). To demonstrate the efficacy of our proposed approach, cocaine was added into blood plasma at various concentrations and drop-deposited onto a specially prepared disposable SERS substrate. SERS substrates were created by deposition of metal nanoclusters on electrospun polymer nanofibers. Subsequently, SERS spectra were measured and as could be expected, the manual distinguishing of cocaine from the spectra proved unfeasible, as its signal was masked by the background signal from blood plasma molecules. To overcome this issue, a database of SERS spectra of cocaine in blood plasma was collected and used for ML training and validation. After training, the reliability of proposed approach was tested on independently prepared samples, with unknown for SERS-ML cocaine presence or absence. As a result, the possibility of rapid determination of cocaine in blood plasma with a probability above 99.5% for cocaine concentrations up to 10-14 M was confirmed. Therefore, it is evident that the proposed approach has the ability to detect trace amounts of cocaine in bioliquids in an express and simple manner.
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Affiliation(s)
- Roman Elashnikov
- Department of Solid State Engineering, University of Chemistry and Technology, 16628 Prague, Czech Republic
| | - Olena Khrystonko
- Department of Solid State Engineering, University of Chemistry and Technology, 16628 Prague, Czech Republic
| | - Andrii Trelin
- Department of Solid State Engineering, University of Chemistry and Technology, 16628 Prague, Czech Republic
| | - Martin Kuchař
- Forensic Laboratory of Biologically Active Substances, Department of Chemistry of Natural Compounds, University of Chemistry and Technology Prague, Prague, Czech Republic
| | - Václav Švorčík
- Department of Solid State Engineering, University of Chemistry and Technology, 16628 Prague, Czech Republic
| | - Oleksiy Lyutakov
- Department of Solid State Engineering, University of Chemistry and Technology, 16628 Prague, Czech Republic.
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Pineda-Cevallos D, Funes Menéndez M, González-Gago A, Rodríguez-González P, Ignacio García Alonso J. Correction of creatine-creatinine conversion during serum creatinine quantification by two-dimensional liquid chromatography and double-spike isotope dilution tandem mass spectrometry. Clin Chim Acta 2024; 554:117778. [PMID: 38220136 DOI: 10.1016/j.cca.2024.117778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 01/16/2024]
Abstract
BACKGROUND AND AIMS Development of a candidate reference method based on bidimensional liquid chromatography coupled to ESI-MS/MS and double spike isotope dilution for serum creatinine quantification capable of correcting for creatinine-creatine interconversion during sample pretreatment. Study of the impact of the creatine-creatinine interconversion during the analysis of human serum samples. MATERIALS AND METHODS 13C1-creatinine and 13C2-creatine are added to the serum sample. Separation carried out by bidimensional liquid chromatography combining reversed phase and a strong cation exchange chromatography. The heart cut, containing creatine and creatinine, is automatically transferred to the second dimension. Quantification carried out by double spike isotope dilution tandem MS/MS. RESULTS Minimization of spectral interferences and ion suppression due to matrix effects while increasing sample throughput compared to the direct coupling of cation exchange chromatography to the ESI source. Trueness of the method studied with the satisfactory analysis of two certified reference materials. Satisfactory intra- and inter-day precisions obtained analysing a serum pool and control sera. Analysis of 93 serum samples revealed negligible interconversions with no correlation with creatine levels. CONCLUSIONS The method provides adequate analytical figures of merit for serum creatinine determination according to CSLI guidelines. Negligible creatine-creatinine interconversion is promoted with the applied sample preparation procedure.
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Affiliation(s)
- Daniela Pineda-Cevallos
- Department of Physical and Analytical Chemistry, University of Oviedo, Avenida Julián Clavería, 8, 33006 Oviedo, Spain
| | - María Funes Menéndez
- Department of Physical and Analytical Chemistry, University of Oviedo, Avenida Julián Clavería, 8, 33006 Oviedo, Spain
| | - Adriana González-Gago
- Department of Physical and Analytical Chemistry, University of Oviedo, Avenida Julián Clavería, 8, 33006 Oviedo, Spain
| | - Pablo Rodríguez-González
- Department of Physical and Analytical Chemistry, University of Oviedo, Avenida Julián Clavería, 8, 33006 Oviedo, Spain.
| | - J Ignacio García Alonso
- Department of Physical and Analytical Chemistry, University of Oviedo, Avenida Julián Clavería, 8, 33006 Oviedo, Spain
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Manca A, De Nicolò A, De Vivo ED, Ferrara M, Oh S, Khalili S, Higgins N, Deiss RG, Bonora S, Cusato J, Palermiti A, Mula J, Gianella S, D’Avolio A. A Novel UHPLC-MS/MS Method for the Quantification of Seven Opioids in Different Human Tissues. Pharmaceuticals (Basel) 2023; 16:903. [PMID: 37375850 PMCID: PMC10300969 DOI: 10.3390/ph16060903] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
BACKGROUND Opioids are considered the cornerstone of pain management: they show good efficacy as a first-line therapy for moderate to severe cancer pain. Since pharmacokinetic/pharmacodynamic information about the tissue-specific effect and toxicity of opioids is still scarce, their quantification in post-mortem autoptic specimens could give interesting insights. METHODS We describe an ultra-high-performance liquid chromatography coupled with tandem mass spectrometry method for the simultaneous quantification of methadone, morphine, oxycodone, hydrocodone, oxymorphone, hydromorphone and fentanyl in several tissues: liver, brain, kidney, abdominal adipose tissue, lung and blood plasma. The presented method has been applied on 28 autoptic samples from different organs obtained from four deceased PLWH who used opioids for palliative care during terminal disease. RESULTS Sample preparation was based on tissue weighing, disruption, sonication with drug extraction medium and a protein precipitation protocol. The extracts were then dried, reconstituted and injected onto the LX50 QSight 220 (Perkin Elmer, Milan, Italy) system. Separation was obtained by a 7 min gradient run at 40 °C with a Kinetex Biphenyl 2.6 µm, 2.1 × 100 mm. Concerning the analyzed samples, higher opioids concentrations were observed in tissues than in plasma. Particularly, O-MOR and O-COD showed higher concentrations in kidney and liver than other tissues (>15-20 times greater) and blood plasma (>100 times greater). CONCLUSIONS Results in terms of linearity, accuracy, precision, recovery and matrix effect fitted the recommendations of FDA and EMA guidelines, and the sensitivity was high enough to allow successful application on human autoptic specimens from an ethically approved clinical study, confirming its eligibility for post-mortem pharmacological/toxicological studies.
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Affiliation(s)
- Alessandra Manca
- Laboratory of Clinical Pharmacology and Pharmacogenetics, Department of Medical Sciences, University of Turin, Amedeo di Savoia Hospital, Corso Svizzera, 164, 10149 Turin, Italy; (A.M.)
| | - Amedeo De Nicolò
- Laboratory of Clinical Pharmacology and Pharmacogenetics, Department of Medical Sciences, University of Turin, Amedeo di Savoia Hospital, Corso Svizzera, 164, 10149 Turin, Italy; (A.M.)
| | - Elisa Delia De Vivo
- Laboratory of Clinical Pharmacology and Pharmacogenetics, Department of Medical Sciences, University of Turin, Amedeo di Savoia Hospital, Corso Svizzera, 164, 10149 Turin, Italy; (A.M.)
| | - Micol Ferrara
- Unit of Infectious Diseases, Department of Medical Sciences, University of Turin, Amedeo di Savoia Hospital, 10149 Turin, Italy
| | - Sharon Oh
- San Diego Division of Infectious Diseases and Global Public Health, University of California San Diego, La Jolla, CA 92037, USA
| | - Sahar Khalili
- San Diego Division of Infectious Diseases and Global Public Health, University of California San Diego, La Jolla, CA 92037, USA
| | - Niamh Higgins
- San Diego Division of Infectious Diseases and Global Public Health, University of California San Diego, La Jolla, CA 92037, USA
| | - Robert G. Deiss
- San Diego Division of Infectious Diseases and Global Public Health, University of California San Diego, La Jolla, CA 92037, USA
| | - Stefano Bonora
- Unit of Infectious Diseases, Department of Medical Sciences, University of Turin, Amedeo di Savoia Hospital, 10149 Turin, Italy
| | - Jessica Cusato
- Laboratory of Clinical Pharmacology and Pharmacogenetics, Department of Medical Sciences, University of Turin, Amedeo di Savoia Hospital, Corso Svizzera, 164, 10149 Turin, Italy; (A.M.)
| | - Alice Palermiti
- Laboratory of Clinical Pharmacology and Pharmacogenetics, Department of Medical Sciences, University of Turin, Amedeo di Savoia Hospital, Corso Svizzera, 164, 10149 Turin, Italy; (A.M.)
| | - Jacopo Mula
- Laboratory of Clinical Pharmacology and Pharmacogenetics, Department of Medical Sciences, University of Turin, Amedeo di Savoia Hospital, Corso Svizzera, 164, 10149 Turin, Italy; (A.M.)
- CoQua Lab s.r.l., 10149 Turin, Italy
| | - Sara Gianella
- San Diego Division of Infectious Diseases and Global Public Health, University of California San Diego, La Jolla, CA 92037, USA
| | - Antonio D’Avolio
- Laboratory of Clinical Pharmacology and Pharmacogenetics, Department of Medical Sciences, University of Turin, Amedeo di Savoia Hospital, Corso Svizzera, 164, 10149 Turin, Italy; (A.M.)
- CoQua Lab s.r.l., 10149 Turin, Italy
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Visconti G, Boccard J, Feinberg M, Rudaz S. From fundamentals in calibration to modern methodologies: A tutorial for small molecules quantification in liquid chromatography-mass spectrometry bioanalysis. Anal Chim Acta 2023; 1240:340711. [PMID: 36641149 DOI: 10.1016/j.aca.2022.340711] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Revised: 12/05/2022] [Accepted: 12/06/2022] [Indexed: 12/12/2022]
Abstract
Over the last two decades, liquid chromatography coupled to mass-spectrometry (LC‒MS) has become the gold standard to perform qualitative and quantitative analyses of small molecules. When quantitative analysis is developed, an analyst usually refers to international guidelines for analytical method validation. In this context, the design of calibration curves plays a key role in providing accurate results. During recent years and along with instrumental advances, strategies to build calibration curves have dramatically evolved, introducing innovative approaches to improve quantitative precision and throughput. For example, when a labeled standard is available to be spiked directly into the study sample, the concentration of the unlabeled analog can be easily determined using the isotopic pattern deconvolution or the internal calibration approach, eliminating the need for multipoint calibration curves. This tutorial aims to synthetize the advances in LC‒MS quantitative analysis for small molecules in complex matrices, going from fundamental aspects in calibration to modern methodologies and applications. Different work schemes for calibration depending on the sample characteristics (analyte and matrix nature) are distinguished and discussed. Finally, this tutorial outlines the importance of having international guidelines for analytical method validation that agree with the advances in calibration strategies and analytical instrumentation.
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Affiliation(s)
- Gioele Visconti
- School of Pharmaceutical Sciences, University of Geneva, CMU - Rue Michel-Servet 1, 1211, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel-Servet 1, 1211, Geneva, Switzerland
| | - Julien Boccard
- School of Pharmaceutical Sciences, University of Geneva, CMU - Rue Michel-Servet 1, 1211, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel-Servet 1, 1211, Geneva, Switzerland
| | | | - Serge Rudaz
- School of Pharmaceutical Sciences, University of Geneva, CMU - Rue Michel-Servet 1, 1211, Geneva, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel-Servet 1, 1211, Geneva, Switzerland.
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Zou D, Gu Y, Luo D, Yang W, Gao R, Cao X, Dong W, Shi H, Zhao H, Liu C. Rapid and ultra-sensitive testosterone detection via aptamer-functional gold nanoparticles. NEW J CHEM 2023. [DOI: 10.1039/d2nj05316k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The capability to monitor doping in a rapid and sensitive manner is highly promising in the field of doping control.
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Affiliation(s)
- Dixin Zou
- Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing, P. R. China
| | - Yujia Gu
- School of Sport Science, Beijing Sport University, Beijing, P. R. China
| | - Dan Luo
- School of Sport Science, Beijing Sport University, Beijing, P. R. China
| | - Weijun Yang
- School of Competitive Sports, Beijing Sport University, Beijing, P. R. China
| | - Ruirui Gao
- School of Sport Science, Beijing Sport University, Beijing, P. R. China
| | - Xin Cao
- School of Sport Science, Beijing Sport University, Beijing, P. R. China
| | - Wei Dong
- School of Sport Science, Beijing Sport University, Beijing, P. R. China
| | - Hanghao Shi
- Department of Physical Education, Jiangnan University, Wuxi, P. R. China
| | - Haotian Zhao
- Department of Physical Education, Jiangnan University, Wuxi, P. R. China
| | - Chang Liu
- School of Sport Science, Beijing Sport University, Beijing, P. R. China
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Higashi T, Aso S, Horisaki H, Ito T, Tanaka S, Nishimoto-Kusunose S, Ogawa S, Kato K, Ide H. Evaluation of thumbnail clipping as a specimen for retrospectively assessing average production of testosterone. Clin Chim Acta 2023; 538:157-163. [PMID: 36417978 DOI: 10.1016/j.cca.2022.11.019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/14/2022] [Accepted: 11/16/2022] [Indexed: 11/21/2022]
Abstract
BACKGROUND The chronic abnormal production of testosterone (T) is associated with many disorders in men. Fingernail clippings might be more suited for the diagnosis and medium-to-long term therapeutic monitoring for the T-related chronic disorders than the blood-derived specimens. The objective of this study was to characterize a thumbnail clipping as the specimen for assessing the several months-old T status. METHODS Thumbnail clippings from various subjects were analyzed by liquid chromatography/electrospray ionization-tandem mass spectrometry to evaluate the gender difference, and changes caused by aging and androgen deprivation therapy (ADT) in the thumbnail T concentration. RESULTS There was an evident gender difference in the thumbnail T concentrations [male; 2.55 ± 0.85 ng/g and female; 0.48 ± 0.29 ng/g, mean ± SD (n = 25 each), Welch t-test]. The thumbnail T concentrations significantly decreased with age in men (n = 268, Scheffé F-test), which was similar to those of the free or bioavailable T in serum/plasma. The thumbnail T concentrations sharply decreased by a 6-months ADT (especially the effect of the luteinizing hormone-releasing hormone agonist/antagonist) for patients with prostate cancer (n = 10). CONCLUSIONS The thumbnail clipping can be a specimen to retrospectively assess the average T production.
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Affiliation(s)
- Tatsuya Higashi
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan.
| | - Saki Aso
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Hiroaki Horisaki
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Takenori Ito
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Sakurako Tanaka
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Shoichi Nishimoto-Kusunose
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan
| | - Shoujiro Ogawa
- Faculty of Pharmaceutical Sciences, Tokyo University of Science, 2641 Yamazaki, Noda, Chiba 278-8510, Japan; Faculty of Pharmacy and Pharmaceutical Sciences, Fukuyama University, 1 Sanzo, Gakuen-cho, Fukuyama, Hiroshima 729-0292, Japan
| | - Kazuhiko Kato
- ASKA Pharma Medical Co., Ltd., 2-26-1 Muraoka-higashi, Fujisawa, Kanagawa 251-8555, Japan
| | - Hisamitsu Ide
- Department of Urology, Dokkyo Medical University Saitama Medical Center, 2-1-50 Minami-koshigaya, Koshigaya, Saitama 343-8555, Japan
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Peikova L, Tzankova D, Smerikarova M, Balkanski S, Zlatkov A. Development of RP-HPLC methods for the analysis of Dexamethasone and Levofloxacin alone and in combinations used in the therapy of Covid-19. PHARMACIA 2022. [DOI: 10.3897/pharmacia.69.e97779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
In December 2019, the World Health Organization was informed of an outbreak of pneumonia of unknown etiology in Wuhan, Hubei Province, China. On January 7, 2020, a new type of coronavirus was isolated, with the WHO later officially calling it “COVID-19” and the International Committee on Taxonomy of Viruses naming the virus “SARS-CoV-2”. On January 30, 2020, the WHO declared the severe acute respiratory syndrome coronavirus 2 outbreak a public health emergency of international concern, making it an unprecedented global public health challenge. From a scientific and literary reference, it was established that the main drugs in the therapy with Covid-19 are Dexamethasone and Levofluoxetine. For this reason, we pay attention to the analysis of these two medicinal products. In the literature, we did not find an analysis of a combination of Dexamethasone and Levofloxacin. Development and validation of a highperformance liquid chromatographic analytical procedure for simultaneously determining Dexamethasone and Levofloxacin in a synthetic mixture is described in this paper. The separation was made with a LiChrosorb RP 18 (250 × 4.6 mm) column, at 25 °C temperature,with isocratic mode andmobile phase,containingt acetonitrile and woter (70-30v/v). Eluent was monitored at 254 nm and the flow rate was 1.0 ml/min. Dexamethasone and Levofluoxetine were effectively separated with retention time (tr) of 4.69 min and 14.51 min,respectively,with in the selected chromatographic conditions.The method was validated for analytical parameters: specificity, linearity, precision, accuracy,andlimits of detection and quantitation. The calibration curves were linear inthe concentration range of 12.5 to 100.0 μg/ml for Dexamethasone and Levofloxacin, and the regression coefficientswere more than 0.999. For Dexamethasone and Levofloxacin the recovery was 100.01% and 100.04%, respectively. This analytical procedure is applicable for the quality control of drug formulations.
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Novel nandrolone aptamer for rapid colorimetric detection of anabolic steroids. Anal Biochem 2022; 658:114937. [DOI: 10.1016/j.ab.2022.114937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 09/25/2022] [Accepted: 09/29/2022] [Indexed: 11/19/2022]
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Hoseinpour Kouhestany R, Tamaddon A, Ahmad Panahi H, Afshar Ebrahimi A, Amiri R. Hyper-branched nanodendrimer as a novel solid-phase extraction sorbent followed by three phase hollow fiber microextraction for trace separation of exemestane. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.121142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Psychosocial aspects of sports medicine in pediatric athletes: Current concepts in the 21 st century. Dis Mon 2022:101482. [PMID: 36100481 DOI: 10.1016/j.disamonth.2022.101482] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Behavioral aspects of organized sports activity for pediatric athletes are considered in a world consumed with winning at all costs. In the first part of this treatise, we deal with a number of themes faced by our children in their sports play. These concepts include the lure of sports, sports attrition, the mental health of pediatric athletes (i.e., effects of stress, anxiety, depression, suicide in athletes, ADHD and stimulants, coping with injuries, drug use, and eating disorders), violence in sports (i.e., concepts of the abused athlete including sexual abuse), dealing with supervisors (i.e., coaches, parents), peers, the talented athlete, early sports specialization and sports clubs. In the second part of this discussion, we cover ergolytic agents consumed by young athletes in attempts to win at all costs. Sports doping agents covered include anabolic steroids (anabolic-androgenic steroids or AAS), androstenedione, dehydroepiandrostenedione (DHEA), human growth hormone (hGH; also its human recombinant homologue: rhGH), clenbuterol, creatine, gamma hydroxybutyrate (GHB), amphetamines, caffeine and ephedrine. Also considered are blood doping that includes erythropoietin (EPO) and concepts of gene doping. In the last section of this discussion, we look at disabled pediatric athletes that include such concepts as athletes with spinal cord injuries (SCIs), myelomeningocele, cerebral palsy, wheelchair athletes, and amputee athletes; also covered are pediatric athletes with visual impairment, deafness, and those with intellectual disability including Down syndrome. In addition, concepts of autonomic dysreflexia, boosting and atlantoaxial instability are emphasized. We conclude that clinicians and society should protect our precious pediatric athletes who face many challenges in their involvement with organized sports in a world obsessed with winning. There is much we can do to help our young athletes find benefit from sports play while avoiding or blunting negative consequences of organized sport activities.
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Thomas K, Khymenets O, Pozo Ó, McLeod MD. Synthesis of 3α,6β‐Dihydroxyandrostan‐17‐one 3‐Glucuronides for the Detection of Testosterone Misuse. European J Org Chem 2022. [DOI: 10.1002/ejoc.202200177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Komba Thomas
- ANU: Australian National University Research School of Chemistry Building 137, Linnaeus WayActon 2601 Canberra AUSTRALIA
| | - Olha Khymenets
- Institut Hospital del Mar d'Investigacions Mèdiques: Institut Hospital del Mar d'Investigacions Mediques Applied Metabolomics Research Group Doctor Aiguader, 8808003 Barcelona 08003 Barcelona SPAIN
| | - Óscar Pozo
- IMIM: Institut Hospital del Mar d'Investigacions Mediques Applied Metabolomics Research Group Doctor Aiguader, 8808003 Barcelona 08003 Barcelona SPAIN
| | - Malcolm Donald McLeod
- ANU: Australian National University Research School of Chemistry Building 137, Linnaeus WayActon 2601 Canberra AUSTRALIA
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Interest of HRMS systems in analytical toxicology: Focus on doping products. TOXICOLOGIE ANALYTIQUE ET CLINIQUE 2022. [DOI: 10.1016/j.toxac.2021.10.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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13
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Koomen DC, May JC, McLean JA. Insights and prospects for ion mobility-mass spectrometry in clinical chemistry. Expert Rev Proteomics 2022; 19:17-31. [PMID: 34986717 PMCID: PMC8881341 DOI: 10.1080/14789450.2022.2026218] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
INTRODUCTION Ion mobility-mass spectrometry is an emerging technology in the clinical setting for high throughput and high confidence molecular characterization from complex biological samples. Ion mobility spectrometry can provide isomer separations on the basis of molecular structure, the ability of which is increasing through technological developments that afford enhanced resolving power. Integrating multiple separation dimensions, such as liquid chromatography-ion mobility-mass spectrometry (LC-IM-MS) provide dramatic enhancements in the mitigation of molecular interferences for high accuracy clinical measurements. AREAS COVERED Multidimensional separations with LC-IM-MS provide better selectivity and sensitivity in molecular analysis. Mass spectrometry imaging of tissues to inform spatial molecular distribution is improved by complementary ion mobility analyses. Biomarker identification in surgical environments is enhanced by intraoperative biochemical analysis with mass spectrometry and holds promise for integration with ion mobility spectrometry. New prospects in high resolving power ion mobility are enhancing analysis capabilities, such as distinguishing isomeric compounds. EXPERT OPINION Ion mobility-mass spectrometry holds many prospects for the field of isomer identification, molecular imaging, and intraoperative tumor margin delineation in clinical settings. These advantages are afforded while maintaining fast analysis times and subsequently high throughput. High resolving power ion mobility will enhance these advantages further, in particular for analyses requiring high confidence isobaric selectivity and detection.
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Affiliation(s)
- David C. Koomen
- Department of Chemistry, Center for Innovative Technology, Institute of Chemical Biology, Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN, USA
| | - Jody C. May
- Department of Chemistry, Center for Innovative Technology, Institute of Chemical Biology, Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN, USA
| | - John A. McLean
- Department of Chemistry, Center for Innovative Technology, Institute of Chemical Biology, Institute for Integrative Biosystems Research and Education, Vanderbilt-Ingram Cancer Center, Vanderbilt University, Nashville, TN, USA
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Li Z, Liang Y, Du C, Yu X, Hou L, Wu W, Ying Y, Luo X. Clinical applications of genetic analysis and liquid chromatography tandem-mass spectrometry in rare types of congenital adrenal hyperplasia. BMC Endocr Disord 2021; 21:237. [PMID: 34823514 PMCID: PMC8620188 DOI: 10.1186/s12902-021-00901-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2021] [Accepted: 11/17/2021] [Indexed: 11/29/2022] Open
Abstract
BACKGROUND Our study aims to summarize the clinical characteristics of rare types of congenital adrenal hyperplasia (CAH) other than 21-hydroxylase deficiency (21-OHD), and to explore the clinical applications of genetic analysis and liquid chromatography tandem-mass spectrometry (LC-MS/MS) in rare CAH. METHODS We retrospectively analysed the clinical data of 5 rare cases of CAH admitted to our hospital and summarized their clinical manifestations, auxiliary examinations, diagnosis and mutational spectrum. RESULTS After gene sequencing, complex heterozygous variants were detected in all patients (2 cases were lipoid congenital adrenal hyperplasia (LCAH), 11β-hydroxylase deficiency (11β-OHD), 3β-hydroxysteroid dehydrogenase deficiency (3β-HSD deficiency) and P450 oxidoreductase deficiency (PORD) each accounted for 1 case), which were consistent with their clinical manifestations. Among them, 4 novel variants were detected, including c.650 + 2 T > A of the StAR gene, c.1145 T > C (p. L382P) of the CYP11B1 gene, c.1622C > T (p. A541V) and c.1804C > T (p. Q602 *) of the POR gene. The LC-MS/MS results for steroid hormones in patients were also consistent with their genetic variants: 2 patients with LCAH showed a decrease in all steroid hormones; 11β-OHD patient showed a significant increase in 11-deoxycortisol and 11-deoxycorticosterone; patient with 3β-HSD deficiency showed a significant increase in DHEA; and PORD patient was mainly characterized by elevated 17OHP, progesterone and impaired synthesis of androgen levels. CONCLUSIONS The clinical manifestations and classification of CAH are complicated, and there are cases of missed diagnosis or misdiagnosis. It's necessary to combine the analysis of clinical manifestations and auxiliary examinations for diagnosis; if necessary, LC-MS/MS analysis of steroid hormones or gene sequencing is recommended for confirming diagnosis and typing.
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MESH Headings
- Adrenal Hyperplasia, Congenital/blood
- Adrenal Hyperplasia, Congenital/genetics
- Child
- Child, Preschool
- China
- Chromatography, Liquid
- Disorder of Sex Development, 46,XY/blood
- Disorder of Sex Development, 46,XY/genetics
- Female
- Gonadal Steroid Hormones/blood
- Humans
- Infant, Newborn
- Male
- Retrospective Studies
- Sequence Analysis, DNA
- Spectrometry, Mass, Electrospray Ionization
- Steroid 11-beta-Hydroxylase/genetics
- Tandem Mass Spectrometry
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Affiliation(s)
- Zhuoguang Li
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
- Department of Endocrinology, Shenzhen Children's Hospital, Shenzhen, China
| | - Yan Liang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Caiqi Du
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiao Yu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Ling Hou
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Wei Wu
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanqing Ying
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaoping Luo
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China.
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16
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Lamadé EK, Hendlmeier F, Wudy SA, Witt SH, Rietschel M, Coenen M, Gilles M, Deuschle M. Rhythm of Fetoplacental 11β-Hydroxysteroid Dehydrogenase Type 2 - Fetal Protection From Morning Maternal Glucocorticoids. J Clin Endocrinol Metab 2021; 106:1630-1636. [PMID: 33621325 DOI: 10.1210/clinem/dgab113] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Indexed: 01/03/2023]
Abstract
CONTEXT Excess glucocorticoids impact fetal health. Maternal glucocorticoids peak in early morning. Fetoplacental 11β-hydroxysteroid dehydrogenase type 2 (11β-HSD2) inactivates cortisol to cortisone, protecting the fetus from high glucocorticoids. However, time-specific alterations of human fetoplacental 11β-HSD2 have not been studied. OBJECTIVE We hypothesized that fetoplacental 11β-HSD2 activity shows time-specific alteration and acute affective or anxiety disorders impact fetoplacental 11β-HSD2 activity. METHODS In this observational study we investigated 78 pregnant European women undergoing amniocentesis (15.9 ± 0.9 weeks of gestation). Amniotic fluid was collected (8:00 to 16:30 hours) for analysis of fetoplacental 11β-HSD2 activity, using cortisol (F):cortisone (E) ratio in amniotic fluid, E/(E + F). Fetoplacental 11β-HSD2 rhythm and association with "acute affective or anxiety disorder" (patients with at least one of: a major depressive episode, specific phobia, panic disorder, generalized anxiety disorder, mixed anxiety and depressive disorder) and "acute anxiety disorder" (one of: panic disorder, generalized anxiety disorder, mixed anxiety, depressive disorder), assessed using Mini International Neuropsychiatric Interview, were investigated. RESULTS Activity of 11β-HSD2 correlated with time of amniocentesis, peaking in the morning (r = -0.398; P < 0.001) and increased with acute affective or anxiety disorder (mean [M] = 0.70 vs M = 0.74; P = 0.037) and acute anxiety disorder (M = 0.70 vs M = 0.75; P = 0.016). These associations remained significant when controlling for confounders. 11β-HSD2 activity correlated negatively with pre-pregnancy body mass index (r = -0.225; P = 0.047). CONCLUSION Our study indicates a time-specific alteration of fetoplacental 11β-HSD2 activity with peaking levels in the morning, demonstrating a mechanism of fetal protection from the morning maternal glucocorticoid surge.
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Affiliation(s)
- Eva Kathrin Lamadé
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, J5, Mannheim, Germany
| | - Ferdinand Hendlmeier
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, J5, Mannheim, Germany
| | - Stefan A Wudy
- Laboratory for Translational Hormone Analytics, Division of Pediatric Endocrinology and Diabetology, Center of Child and Adolescent Medicine, Justus Liebig University, Feulgenstrasse 10-12, Giessen, Germany
| | - Stephanie H Witt
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, J5, Mannheim, Germany
| | - Marcella Rietschel
- Department of Genetic Epidemiology in Psychiatry, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, J5, Mannheim, Germany
| | - Michaela Coenen
- Institute for Medical Information Processing, Biometry and Epidemiology, Chair of Public Health and Health Services Research, LMU Munich, Elisabeth-Winterhalter-Weg 6, Munich, Germany
- Pettenkofer School of Public Health, Elisabeth-Winterhalter-Weg 6, 81377 Munich, Germany
| | - Maria Gilles
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, J5, Mannheim, Germany
| | - Michael Deuschle
- Department of Psychiatry and Psychotherapy, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, J5, Mannheim, Germany
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17
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De Wilde L, Van Renterghem P, Van Eenoo P. Long-term stability study and evaluation of intact steroid conjugate ratios after the administration of endogenous steroids. Drug Test Anal 2021; 14:851-863. [PMID: 33982451 DOI: 10.1002/dta.3096] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 05/05/2021] [Accepted: 05/06/2021] [Indexed: 12/26/2022]
Abstract
The most frequently detected substances prohibited by the World Anti-Doping Agency (WADA) belong to the anabolic steroids class. The most challenging compounds among this class are the endogenous anabolic steroids, which are detected by quantitative measurement of testosterone (T) and its metabolites with a so-called "steroid profiling" method. The current steroid profile is based on the concentrations and ratios of the sum of free and glucuronidated steroids. Recently, our group developed a steroid profiling method for the detection of three free steroids and 14 intact steroid conjugates, including both the glucuronic acid conjugated and sulfated fraction. The study aimed at evaluating the long-term stability of steroid conjugate concentrations and ratios, and the influence of different endogenous steroids on this extended steroid profile. A single dose of oral T undecanoate (TU), topical T gel, topical dihydrotestosterone (DHT) gel, and oral dehydroepiandrosterone (DHEA) was administered to six healthy male volunteers. One additional volunteer with a homozygote deletion of the UGT2B17 gene (del/del genotype) received a single topical dose of T gel. An intramuscular dose of TU was administered to another volunteer. To avoid fluctuation of steroid concentrations caused by variations in urinary flow rates, steroid ratios were calculated and evaluated as possible biomarkers for the detection of endogenous steroid abuse with low doses. Overall, sulfates do not have substantial additional value in prolonging detection times for the investigated endogenous steroids and administration doses. The already monitored glucuronides were overall the best markers and were sufficient to detect the administered steroids.
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Affiliation(s)
- Laurie De Wilde
- Department Diagnostic Sciences, Doping Control Laboratory (DoCoLab), Ghent University (UGent), Ghent, Belgium
| | - Pieter Van Renterghem
- Department Diagnostic Sciences, Doping Control Laboratory (DoCoLab), Ghent University (UGent), Ghent, Belgium
| | - Peter Van Eenoo
- Department Diagnostic Sciences, Doping Control Laboratory (DoCoLab), Ghent University (UGent), Ghent, Belgium
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18
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Pan C, Qiu J, Wang L, Yan Z, Huang W, Zhang D, Zhan X, Shen G. Colorimetric Aptasensor for Testosterone Detection Based on Aggregation of Gold Nanoparticles Induced by Cationic Surfactant. Aust J Chem 2021. [DOI: 10.1071/ch20237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This paper proposes a colorimetric aptasensor for the detection of testosterone (TES) in environmental water, using TES-specific aptamer (apT5) as a sensing probe, gold nanoparticles (AuNPs) as indicator, and hexadecyltrimethylammonium bromide (CTAB) as inducer, respectively. Based on competition between TES and CTAB for apT5, the aptamer can form an aptamer–TES complex, leaving CTAB free to aggregate AuNPs in the presence of TES. Dispersed and aggregated AuNPs have different absorption wavelengths and the signal of absorption intensity is associated with the concentration of TES, so TES can be detected quantitatively based on the signal absorption intensity. This sensitive aptasensor for TES detection has a wide linear range (R=0.998) from 1.91–800nM and a limit of detection (LOD) of 1.91nM. In addition, this aptasensor has high selectivity over some interferents. The method detects TES in tap water samples with recoveries in the range of 98.9–102.6% (RSD ≤ 7.35%). This biosensor presents a good and potential application to rapidly detect TES in actual environmental water samples.
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19
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Gravitte A, Archibald T, Cobble A, Kennard B, Brown S. Liquid chromatography-mass spectrometry applications for quantification of endogenous sex hormones. Biomed Chromatogr 2020; 35:e5036. [PMID: 33226656 DOI: 10.1002/bmc.5036] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 11/20/2020] [Accepted: 11/20/2020] [Indexed: 01/18/2023]
Abstract
Liquid chromatography, coupled with tandem mass spectrometry, presents a powerful tool for the quantification of the sex steroid hormones 17-β estradiol, progesterone and testosterone from biological matrices. The importance of accurate quantification with these hormones, even at endogenous levels, has evolved with our understanding of the role these regulators play in human development, fertility and disease risk and manifestation. Routine monitoring of these analytes can be accomplished by immunoassay techniques, which face limitations on specificity and sensitivity, or using gas chromatography-mass spectrometry. LC-MS/MS is growing in capability and acceptance for clinically relevant quantification of sex steroid hormones in biological matrices and is able to overcome many of the limitations of immunoassays. Analyte specificity has improved through the use of novel derivatizing agents, and sensitivity has been refined through the use of high-resolution chromatography and mass spectrometric technology. This review highlights these innovations, among others, in LC-MS/MS steroid hormone analysis captured in the literature over the last decade.
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Affiliation(s)
- Amy Gravitte
- James H Quillen College of Medicine, East Tennessee State University, Department of Biomedical Sciences, Johnson City, TN, USA
| | - Timothy Archibald
- Bill Gatton College of Pharmacy, East Tennessee State University, Department of Pharmaceutical Sciences, Johnson City, TN, USA
| | - Allison Cobble
- Bill Gatton College of Pharmacy, East Tennessee State University, Department of Pharmaceutical Sciences, Johnson City, TN, USA
| | - Benjamin Kennard
- Bill Gatton College of Pharmacy, East Tennessee State University, Department of Pharmaceutical Sciences, Johnson City, TN, USA
| | - Stacy Brown
- Bill Gatton College of Pharmacy, East Tennessee State University, Department of Pharmaceutical Sciences, Johnson City, TN, USA
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20
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Ângelo ML, de Lima Moreira F, Araújo Santos AL, Nunes Salgado HR, de Araújo MB. A Review of Analytical Methods for the Determination of Tibolone: Pharmacokinetics and Pharmaceutical Formulations Analysis and Application in Doping Control. CURR PHARM ANAL 2020. [DOI: 10.2174/1573412916666191025143214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Background:
Tibolone is a synthetic steroid commercialized by Organon under the brand
name Livial (Org OD14), which is used in hormone therapy for menopause management and treatment
of postmenopausal osteoporosis. Tibolone is defined as a selective tissue estrogenic activity regulator
(STEAR) demonstrating tissue-specific effects on several organs such as brain, breast, urogenital tract,
endometrium, bone and cardiovascular system.
Aims:
This work aims to (1) present an overview of important published literature on existing methods
for the analysis of tibolone and/or its metabolites in pharmaceutical formulations and biological fluids
and (2) to conduct a critical comparison of the analytical methods used in doping control, pharmacokinetics
and pharmaceutical formulations analysis of tibolone and its metabolites.
Results and conclusions:
The major analytical method described for the analysis of tibolone in pharmaceutical
formulations is High Pressure Liquid Chromatography (HPLC) coupled with ultraviolet
(UV) detection, while Liquid Chromatography (LC) or Gas Chromatography (GC) used in combination
with Mass Spectrometry (MS) or tandem mass spectrometry (MS/MS) is employed for the analysis of
tibolone and/or its metabolites in biological fluids.
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Affiliation(s)
- Marilene Lopes Ângelo
- Faculty of Pharmaceutical Sciences, Federal University of Alfenas, 700, Rua Gabriel Monteiro da Silva, 37130-000, Alfenas, MG, Brazil
| | - Fernanda de Lima Moreira
- School of Pharmaceutical Sciences of Ribeirao Preto, University of Sao Paulo, 14040-903, Ribeirao Preto, SP, Brazil
| | | | - Hérida Regina Nunes Salgado
- Faculty of Pharmaceutical Sciences, UNESP, Campus Araraquara, Rodovia Araraquara Jau, km 01, 14800-903, Araraquara, SP, Brazil
| | - Magali Benjamim de Araújo
- Faculty of Pharmaceutical Sciences, Federal University of Alfenas, 700, Rua Gabriel Monteiro da Silva, 37130-000, Alfenas, MG, Brazil
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21
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Silva WP, Rocha RG, Felisbino JKRP, Sousa RMF, Munoz RAA, Richter EM. Electrochemical Determination of the Steroid Tibolone and Its Metabolites in Saliva Samples. ChemElectroChem 2020. [DOI: 10.1002/celc.202001248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Weberson P. Silva
- Institute of Chemistry Federal University of Uberlândia Minas Gerais Brazil 38400-092
| | - Raquel G. Rocha
- Institute of Chemistry Federal University of Uberlândia Minas Gerais Brazil 38400-092
| | | | - Raquel M. F. Sousa
- Institute of Chemistry Federal University of Uberlândia Minas Gerais Brazil 38400-092
| | - Rodrigo A. A. Munoz
- Institute of Chemistry Federal University of Uberlândia Minas Gerais Brazil 38400-092
| | - Eduardo M. Richter
- Institute of Chemistry Federal University of Uberlândia Minas Gerais Brazil 38400-092
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22
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Zheng J, Ye C, Wang P, Liu Y, Yang H, Liu H. Quantitative analysis of total methenolone in animal source food by liquid chromatography-tandem mass spectrometry. Drug Test Anal 2020; 13:148-155. [PMID: 32852087 DOI: 10.1002/dta.2915] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 08/11/2020] [Accepted: 08/14/2020] [Indexed: 11/10/2022]
Abstract
Methenolone, an anabolic androgenic steroid, has been applied to improve the quality and protein content of meat in animal husbandry. However, the usage of methenolone in sports is banned for its doping effects. Several methods have been reported to monitor the content of methenolone in serum and urine samples, but a highly sensitive detection system has not been developed for the determination of methenolone in animal source food due to its constituent complexity. In this study, a novel detection system was developed to quantify the contents of both free and conjugated methenolone in animal source food including pork, beef, mutton, milk, and eggs by using high-performance liquid chromatography-tandem mass spectrometry (HPLC-MS/MS) coupled with delicate pretreatment procedures. The conjugated methenolone in the above food samples was released by dual enzyme digestion, and the total methenolone was extracted by 1% formic acid in acetonitrile, followed by the purification using a PRiME HLB column or QuEChERS (Quick, Easy, Cheap, Effective, Rugged, and Safe) salt. The compound d3 -methyltestosterone was used as an internal standard to minimize matrix interference. Finally, a wide linear range (0.5-20 μg/kg), low limit of detection (LOD) (0.3 μg/kg), good precision (<7% relative standard deviation), and high recovery (>90%) were obtained in the study of method validation. In summary, this analytical method provides a practicable monitoring tool for the quantification of methenolone in animal source food.
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Affiliation(s)
- Junping Zheng
- College of Life Sciences, Wuchang University of Technology, Wuhan, China.,School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan, China
| | - Cheng Ye
- Wuhan Customs Technology Center, Wuhan Customs District P.R. China, Wuhan, China
| | - Peng Wang
- Wuhan Customs Technology Center, Wuhan Customs District P.R. China, Wuhan, China
| | - Yang Liu
- College of Life Sciences, Wuchang University of Technology, Wuhan, China
| | - Huabing Yang
- School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan, China
| | - Hongtao Liu
- School of Basic Medical Sciences, Hubei University of Chinese Medicine, Wuhan, China
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23
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Current methods for stress marker detection in saliva. J Pharm Biomed Anal 2020; 191:113604. [PMID: 32957066 PMCID: PMC7474833 DOI: 10.1016/j.jpba.2020.113604] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Revised: 08/26/2020] [Accepted: 08/28/2020] [Indexed: 02/06/2023]
Abstract
Introduction of relevant biomarkers in stress conditions. Reference ranges of biomarkers in normal conditions. Saliva as easy-accessible specimen. Review of analytical methods for biomarker determination in saliva. Possibilities for design of point-of-care devices.
Stress and stress-related diseases are leading to drastic consequences in private and professional life. Therefore, the need for stress prevention strategies is of personal and economic interest. Especially during the recent period related to covid-19 outbreak and lock-down, an ongoing discussion of increasing stress etiology is reported. Biomarker analysis may help to assist diagnosis and classification of stress-related diseases and therefore support therapeutical decisions. Due to its non-invasive sampling, the analysis of saliva has become highly attractive compared to the detection methods in other specimen. This review article summarizes the status of research, innovative approaches, and trends. Scientific literature published since 2011 was excerpted with concentration on the detection of up to seven promising marker substances. Most often reported cortisol represents the currently best evaluated stress marker, while norepinephrine (noradrenaline) or its metabolite 3-methoxy-4-hydroxyphenylglycol is also a quite commonly considered stress marker. Other complementary stress marker candidates are testosterone, dehydroepiandrosterone (DHEA) and its sulfonated analogue DHEA-S, alpha-amylase, secretory immunoglobulin A, and chromogranin A. Several working groups are researching in the field of stress marker detection to develop reliable, fast, and affordable methods. Analytical methods reported mainly focused on immunological and electrochemical as well as chromatographic methods hyphenated to mass spectrometric detection to yield the required detection limits.
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24
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De Wilde L, Roels K, Van Renterghem P, Van Eenoo P, Deventer K. Steroid profiling in urine of intact glucuronidated and sulfated steroids using liquid chromatography-mass spectrometry. J Chromatogr A 2020; 1624:461231. [DOI: 10.1016/j.chroma.2020.461231] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 05/06/2020] [Accepted: 05/10/2020] [Indexed: 02/05/2023]
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25
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Salem MA, Yoshida T, Perez de Souza L, Alseekh S, Bajdzienko K, Fernie AR, Giavalisco P. An improved extraction method enables the comprehensive analysis of lipids, proteins, metabolites and phytohormones from a single sample of leaf tissue under water-deficit stress. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2020; 103:1614-1632. [PMID: 32378781 DOI: 10.1111/tpj.14800] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 04/13/2020] [Accepted: 04/20/2020] [Indexed: 05/20/2023]
Abstract
Phytohormones play essential roles in the regulation of growth and development in plants. Plant hormone profiling is therefore essential to understand developmental processes and the adaptation of plants to biotic and/or abiotic stresses. Interestingly, commonly used hormone extraction and profiling methods do not adequately resolve other molecular entities, such as polar metabolites, lipids, starch and proteins, which would be required to comprehensively describe the continuing biological processes at a systematic level. In this article we introduce an updated version of a previously published liquid:liquid metabolite extraction protocol, which not only allows for the profiling of primary and secondary metabolites, lipids, starch and proteins, but also enables the quantitative analysis of the major plant hormone classes, including abscisic acid, auxins, cytokinins, jasmonates and salicylates, from a single sample aliquot. The optimization of the method, which uses the introduction of acidified water, enabling the complete purification of major plant hormones into the organic (methyl-tert-butyl-ether) phase, eliminated the need for solid-phase extraction for sample clean-up, and therefore reduces both sampling time and cost. As a proof-of-concept analysis, Arabidopsis thaliana plants were subjected to water-deficit stress, which were then profiled for hormonal, metabolic, lipidomic and proteomic changes. Surprisingly, we determined not only previously described molecular changes but also significant changes regarding the breakdown of specific galactolipids, followed by the substantial accumulation of unsaturated fatty-acid derivatives and diverse jasmonates in the course of adaptation to water-deficit stress.
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Affiliation(s)
- Mohamed A Salem
- Department of Pharmacognosy, Faculty of Pharmacy, Menoufia University, Gamal Abd El Nasr St, Shibin Elkom, Menoufia, 32511, Egypt
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, Potsdam-Golm, 14476, Germany
| | - Takuya Yoshida
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, Potsdam-Golm, 14476, Germany
| | - Leonardo Perez de Souza
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, Potsdam-Golm, 14476, Germany
| | - Saleh Alseekh
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, Potsdam-Golm, 14476, Germany
- Center of Plant Systems Biology and Biotechnology, Plovdiv, 4000, Bulgaria
| | - Krzysztof Bajdzienko
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, Potsdam-Golm, 14476, Germany
| | - Alisdair R Fernie
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, Potsdam-Golm, 14476, Germany
| | - Patrick Giavalisco
- Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, Potsdam-Golm, 14476, Germany
- Max Planck Institute for Biology of Ageing, Joseph Stelzmann Str. 9b, Cologne, 50931, Germany
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26
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Temerdashev AZ, Dmitrieva EV. Methods for the Determination of Selective Androgen Receptor Modulators. JOURNAL OF ANALYTICAL CHEMISTRY 2020. [DOI: 10.1134/s1061934820070187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Microsampling and LC–MS/MS for antidoping testing of glucocorticoids in urine. Bioanalysis 2020; 12:769-782. [DOI: 10.4155/bio-2020-0044] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
Background. Systemic glucocorticoids are prohibited in-competition by the World Anti-Doping Agency. Here, we describe an original microsampling workflow for the quantitation of three endogenous (cortisol, corticosterone and cortisone) and three exogenous (dexamethasone, methylprednisolone and fludrocortisone) corticosteroids in 30 μl of human urine. Materials & methods. Microsampling was carried out by dried urine spot (DUS) sampling and volumetric absorptive microsampling (VAMS), followed by solvent extraction and LC–MS/MS analysis. Results & conclusion: Good linearity (r2 > 0.9989) was obtained for all analytes; extraction yields (>81%), precision (RSD < 8.6%) and matrix effect (<12%) were satisfactory. Microsample stability at room temperature was good (analyte loss <15% after 3 months). Data obtained from real urine microsample analysis were compared with those of fluid urine, providing very good agreement (r2 > 0.9991).
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28
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Liang Y, Liu J, Zhong Q, Huang T, Zhou T. An automatic online solid-phase dehydrate extraction-ultra-high performance supercritical fluid chromatography-tandem mass spectrometry system using a dilution strategy for the screening of doping agents in human urine. Anal Chim Acta 2020; 1101:184-192. [PMID: 32029110 DOI: 10.1016/j.aca.2019.12.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 12/02/2019] [Accepted: 12/04/2019] [Indexed: 12/30/2022]
Abstract
An automatic online solid-phase dehydrate extraction (SPDE)-ultra-high performance supercritical fluid chromatography (UHPSFC)-MS/MS system was developed in this study, in which the automatic SPDE procedure was coupled with UHPSFC to allow UHPSFC to analyze aqueous samples directly. Moreover, a pre-column dilution strategy was employed, which focused the analytes in strong desorption solvent on the column head and helped to obtain narrow and symmetric peaks. The online SPDE-UHPSFC-MS/MS system was firstly applied to the screening of 45 prohibited substances in human urine for doping control, during which all the mechanisms and features of the online system were fully studied. The majority (91%) of the target compounds achieved weak matrix effects (80-120%), indicating that the online method was accurate and reliable thanks to the SPDE procedure and efficient UHPSFC separation. Owing to the reduction of the matrix effects, large volume injection and the pre-column dilution, the online system could achieve high sensitivity with the LODs ranging from 0.0380 ng L-1 to 1.24 μg L-1. Under the optimized conditions, the extraction recoveries of 66% target analytes were more than 50%. All the target compounds showed good linearity with linear correlation coefficients higher than 0.9928. The accuracy values of all the spiked prohibited substances were within 80.8-119.7%, while the RSDs% for the intra-/inter-day precision were within 10.8% and 15.4%. Compared with the dilute-and-shoot-ultra-high performance liquid chromatography-MS/MS method, in which the urine samples were simply diluted before analyzing, this online method was superior in sensitivity and reducing matrix effects, which demonstrated its utility in doping control. Compared with the previously reported online SPE-SFC system, the online SPDE-UHPSFC-MS/MS system showed advantages in automation, efficiency, sensitivity and chromatographic performance. In summary, the online SPDE-UHPSFC-MS/MS system is capable of analyzing complex aqueous samples.
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Affiliation(s)
- Yanshan Liang
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, China
| | - Jiaqi Liu
- Shimadzu (China) Corporation, Guangzhou Branch, 510010, China
| | - Qisheng Zhong
- Shimadzu (China) Corporation, Guangzhou Branch, 510010, China
| | - Taohong Huang
- Shimadzu (China) Corporation, Shanghai Branch, 200233, China
| | - Ting Zhou
- School of Biology and Biological Engineering, South China University of Technology, Guangzhou, 510006, China.
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29
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Laforest S, Pelletier M, Denver N, Poirier B, Nguyen S, Walker BR, Durocher F, Homer NZM, Diorio C, Tchernof A, Andrew R. Simultaneous quantification of estrogens and glucocorticoids in human adipose tissue by liquid-chromatography-tandem mass spectrometry. J Steroid Biochem Mol Biol 2019; 195:105476. [PMID: 31561001 PMCID: PMC7099401 DOI: 10.1016/j.jsbmb.2019.105476] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Revised: 08/30/2019] [Accepted: 09/18/2019] [Indexed: 12/13/2022]
Abstract
The presence of estrogens, androgens and glucocorticoids as well as their receptors and steroid converting enzymes in adipose tissue has been established. Their contribution to diseases such as obesity, diabetes and hormone-dependent cancers is an active area of research. Our objective was to develop a LC-MS/MS method to quantify bioactive estrogens and glucocorticoids simultaneously in human adipose tissue. Estrogens and glucocorticoids were extracted from adipose tissue samples using solid-phase extraction. Estrogens were derivatized using 1-(2,4-dinitro-5-fluorophenyl)-4-methylpiperazine (PPZ) and methyl iodide to generate a permanently charged molecule (MPPZ). Steroids were separated and quantified by LC-MS/MS. The limit of quantitation for the steroids was between 15 and 100 pg per sample. Accuracy and precision were acceptable (<20%). Using this method, estradiol, estrone, cortisone and cortisol were quantified in adipose tissue from women with and without breast cancer. This novel assay of estrogens and glucocorticoids by LC-MS/MS coupled with derivatization allowed simultaneous quantification of a panel of steroids in human adipose tissue across the endogenous range of concentrations encountered in health and disease.
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Affiliation(s)
- Sofia Laforest
- CHU de Québec-Université Laval Research Center (Endocrinology and Nephrology Division), School of Nutrition, Faculty of Agriculture and Food Sciences, Université Laval, Québec, Canada; Quebec Heart Lung Institute, Québec, Canada
| | - Mélissa Pelletier
- CHU de Québec-Université Laval Research Center (Endocrinology and Nephrology Division), School of Nutrition, Faculty of Agriculture and Food Sciences, Université Laval, Québec, Canada; Quebec Heart Lung Institute, Québec, Canada
| | - Nina Denver
- Mass Spectrometry Core, Edinburgh Clinical Research Facility, Queen's Medical Research Institute, Edinburgh, United Kingdom; Institute of Cardiovascular and Medical Sciences, College of Medical, Veterinary and Life Sciences, University of Glasgow, University Avenue, Glasgow, United Kingdom; Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde, Cathedral Street, Glasgow, United Kingdom
| | - Brigitte Poirier
- CHU de Québec-Université Laval Research Center (Oncology Division), Université Laval Cancer Research Center and Department of Surgery, Faculty of Medicine, Université Laval, Québec, Canada; Centre des maladies du sein Deschênes-Fabia, Hôpital Saint-Sacrement, Québec, Canada
| | - Sébastien Nguyen
- CHU de Québec-Université Laval Research Center (Oncology Division), Université Laval Cancer Research Center and Department of Surgery, Faculty of Medicine, Université Laval, Québec, Canada
| | - Brian R Walker
- University/BHF Centre for Cardiovascular Science, Queen's Medical Research Institute, University of Edinburgh, 47, Little France Crescent, Edinburgh, EH16 4TJ, UK; Newcastle University, Newcastle upon Tyne, NE1 7RU, UK
| | - Francine Durocher
- CHU de Québec-Université Laval Research Center (Endocrinology and Nephrology Division), Université Laval Cancer Research Center and Department of Molecular Medicine, Faculty of Medicine, Université Laval, Québec, Canada
| | - Natalie Z M Homer
- Mass Spectrometry Core, Edinburgh Clinical Research Facility, Queen's Medical Research Institute, Edinburgh, United Kingdom; University/BHF Centre for Cardiovascular Science, Queen's Medical Research Institute, University of Edinburgh, 47, Little France Crescent, Edinburgh, EH16 4TJ, UK
| | - Caroline Diorio
- Centre des maladies du sein Deschênes-Fabia, Hôpital Saint-Sacrement, Québec, Canada; CHU de Québec-Université Laval Research Center (Oncology Division), Université Laval Cancer Research Center and Department of Social and Preventive Medicine, Faculty of Medicine, Université Laval, Québec, Canada
| | - André Tchernof
- CHU de Québec-Université Laval Research Center (Endocrinology and Nephrology Division), School of Nutrition, Faculty of Agriculture and Food Sciences, Université Laval, Québec, Canada; Quebec Heart Lung Institute, Québec, Canada
| | - Ruth Andrew
- Mass Spectrometry Core, Edinburgh Clinical Research Facility, Queen's Medical Research Institute, Edinburgh, United Kingdom; University/BHF Centre for Cardiovascular Science, Queen's Medical Research Institute, University of Edinburgh, 47, Little France Crescent, Edinburgh, EH16 4TJ, UK.
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Ultra-high performance liquid chromatography-MS/MS (UHPLC-MS/MS) in practice: analysis of drugs and pharmaceutical formulations. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2019. [DOI: 10.1186/s43094-019-0007-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Abstract
Background
UHPLC-MS/MS is connected in various research facilities for the qualitative and quantitative investigation of a pharmaceutical substance, pharmaceutical items, and biological specimen.
Main body
The commence review article is an endeavor to offer pervasive awareness around assorted aspects and details about the UHPLC-MS/MS and related techniques with the aim on practice to an estimation of medicinal active agents in the last 10 years. The article also focused on isolation, separation, and characterization of present impurity in drug and biological samples.
Conclusion
Review article compiles a general overview of medicinally important drugs and their analysis with UHPLC-MS/MS. It gives fundamental thought regarding applications of UHPLC-MS/MS for the study on safety limit. The summary of developed UHPLC-MS/MS methods gives a contribution to the future trend and limitations in this area of research.
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Faiss R, Saugy J, Saugy M. Fighting Doping in Elite Sports: Blood for All Tests! Front Sports Act Living 2019; 1:30. [PMID: 33344954 PMCID: PMC7739585 DOI: 10.3389/fspor.2019.00030] [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: 06/22/2019] [Accepted: 09/03/2019] [Indexed: 12/19/2022] Open
Abstract
In the fight against doping, detection of doping substances in biological matrices is paramount. Analytical possibilities have evolved and sanctioning a doping scenario by detecting forbidden bioactive compounds circulating unmodified in blood is nowadays very attractive. In addition, the World Anti-Doping Agency (WADA) introduced the Athlete Biological Passport (ABP) a decade ago as a new paradigm inferring the use of prohibited substances or methods through longitudinal profiling, or serial analyses of indirect biomarkers of doping, to be both scientifically and legally robust. After the introduction in 2008 of an hematological module (i.e., based on variations of blood variables) aiming to identify enhancement of oxygen transport and any form of blood transfusion or manipulation, a urinary steroidal module was additionally introduced in 2014 composed of concentrations and ratios of various endogenously produced steroidal hormones. Some evidence tends to discredit steroid profiles obtained from urine analyses to detect the use of endogenous androgenic anabolic steroids (EAAS), when administered exogenously, due to high rates of false negatives with short half-life and topical formulations rendering profile alteration only minimal or equivocal. On the other hand, steroid hormones quantification in blood showed a promising ability to detect testosterone doping and interesting complementarities to the ABP thanks to the most recent analytical techniques (UHPLC-HRMS or/and MS/MS). This perspective article explores the opportunities of blood samples to monitor not only hematological but also steroid profiles in elite athletes.
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Affiliation(s)
- Raphael Faiss
- REDs, Research and Expertise in Antidoping Sciences, University of Lausanne, Lausanne, Switzerland
| | - Jonas Saugy
- REDs, Research and Expertise in Antidoping Sciences, University of Lausanne, Lausanne, Switzerland
| | - Martial Saugy
- REDs, Research and Expertise in Antidoping Sciences, University of Lausanne, Lausanne, Switzerland
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de Oliveira FA, Casilli A, Piper T, da Silva TR, da Silva CA, da Silva RVS, Dal Sasso MA, Salgueiro GRDSG, Padilha MC, Pereira HMG, Thevis M, de Aquino Neto FR. Implementation and Performance of the Gas Chromatography/Combustion/Isotope Ratio Mass Spectrometry-Based Method for the Confirmatory Analysis of Endogenous Anabolic Steroids during the Rio de Janeiro Olympic and Paralympic Games 2016. Anal Chem 2019; 91:11747-11756. [DOI: 10.1021/acs.analchem.9b02341] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fábio Azamor de Oliveira
- Brazilian Doping Control Laboratory − LBCD, LADETEC, Av. Horácio Macedo, 1281 − Polo de Química − Bloco C − Cidade Universitária − Ιlha do Fundão, Federal University of Rio de Janeiro − UFRJ, Rio de Janeiro 21941-901, Brazil
| | - Alessandro Casilli
- Brazilian Doping Control Laboratory − LBCD, LADETEC, Av. Horácio Macedo, 1281 − Polo de Química − Bloco C − Cidade Universitária − Ιlha do Fundão, Federal University of Rio de Janeiro − UFRJ, Rio de Janeiro 21941-901, Brazil
| | - Thomas Piper
- Center for Preventive Doping Research − Institute of Biochemistry, German Sport University Cologne, Am Sportpark Müngersdorf 6, Cologne 50933, Germany
| | - Thais Reis da Silva
- Brazilian Doping Control Laboratory − LBCD, LADETEC, Av. Horácio Macedo, 1281 − Polo de Química − Bloco C − Cidade Universitária − Ιlha do Fundão, Federal University of Rio de Janeiro − UFRJ, Rio de Janeiro 21941-901, Brazil
| | - Cristiane Abrantes da Silva
- Brazilian Doping Control Laboratory − LBCD, LADETEC, Av. Horácio Macedo, 1281 − Polo de Química − Bloco C − Cidade Universitária − Ιlha do Fundão, Federal University of Rio de Janeiro − UFRJ, Rio de Janeiro 21941-901, Brazil
| | - Raquel Vieira Santana da Silva
- Brazilian Doping Control Laboratory − LBCD, LADETEC, Av. Horácio Macedo, 1281 − Polo de Química − Bloco C − Cidade Universitária − Ιlha do Fundão, Federal University of Rio de Janeiro − UFRJ, Rio de Janeiro 21941-901, Brazil
| | - Marco Aurelio Dal Sasso
- Brazilian Doping Control Laboratory − LBCD, LADETEC, Av. Horácio Macedo, 1281 − Polo de Química − Bloco C − Cidade Universitária − Ιlha do Fundão, Federal University of Rio de Janeiro − UFRJ, Rio de Janeiro 21941-901, Brazil
| | - Gutierri Ricardo dos Santos Gonçalves Salgueiro
- Brazilian Doping Control Laboratory − LBCD, LADETEC, Av. Horácio Macedo, 1281 − Polo de Química − Bloco C − Cidade Universitária − Ιlha do Fundão, Federal University of Rio de Janeiro − UFRJ, Rio de Janeiro 21941-901, Brazil
| | - Monica Costa Padilha
- Brazilian Doping Control Laboratory − LBCD, LADETEC, Av. Horácio Macedo, 1281 − Polo de Química − Bloco C − Cidade Universitária − Ιlha do Fundão, Federal University of Rio de Janeiro − UFRJ, Rio de Janeiro 21941-901, Brazil
| | - Henrique Marcelo Gualberto Pereira
- Brazilian Doping Control Laboratory − LBCD, LADETEC, Av. Horácio Macedo, 1281 − Polo de Química − Bloco C − Cidade Universitária − Ιlha do Fundão, Federal University of Rio de Janeiro − UFRJ, Rio de Janeiro 21941-901, Brazil
| | - Mario Thevis
- Center for Preventive Doping Research − Institute of Biochemistry, German Sport University Cologne, Am Sportpark Müngersdorf 6, Cologne 50933, Germany
| | - Francisco Radler de Aquino Neto
- Brazilian Doping Control Laboratory − LBCD, LADETEC, Av. Horácio Macedo, 1281 − Polo de Química − Bloco C − Cidade Universitária − Ιlha do Fundão, Federal University of Rio de Janeiro − UFRJ, Rio de Janeiro 21941-901, Brazil
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Cleary JL, Luu GT, Pierce EC, Dutton RJ, Sanchez LM. BLANKA: an Algorithm for Blank Subtraction in Mass Spectrometry of Complex Biological Samples. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2019; 30:1426-1434. [PMID: 30993641 PMCID: PMC6675636 DOI: 10.1007/s13361-019-02185-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Revised: 03/05/2019] [Accepted: 03/05/2019] [Indexed: 05/05/2023]
Abstract
Multispecies microbiome systems are known to be closely linked to human, animal, and plant life processes. The growing field of metabolomics presents the opportunity to detect changes in overall metabolomic profiles of microbial species interactions. These metabolomic changes provide insight into function of metabolites as they correlate to different species presence and the observed phenotypic changes, but detection of subtle changes is often difficult in samples with complex backgrounds. Natural environments such as soil and food contain many molecules that convolute mass spectrometry-based analyses, and identification of microbial metabolites amongst environmental metabolites is an informatics problem we begin to address here. Our microbes are grown on solid or liquid cheese curd media. This medium, which is necessary for microbial growth, contains high amounts of salts, lipids, and casein breakdown products which make statistical analyses using LC-MS/MS data difficult due to the high background from the media. We have developed a simple algorithm to carry out background subtraction from microbes grown on solid or liquid cheese curd media to aid in our ability to conduct statistical analyses so that we may prioritize metabolites for further structure elucidation. Graphical Abstract .
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Affiliation(s)
- Jessica L Cleary
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 833 S Wood St, MC 781, Room 539, Chicago, IL, 60612, USA
| | - Gordon T Luu
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 833 S Wood St, MC 781, Room 539, Chicago, IL, 60612, USA
| | - Emily C Pierce
- Division of Biological Sciences, University of California, San Diego, 9500 Gilman Dr, La Jolla, CA, 92093, USA
| | - Rachel J Dutton
- Division of Biological Sciences, University of California, San Diego, 9500 Gilman Dr, La Jolla, CA, 92093, USA
| | - Laura M Sanchez
- Department of Medicinal Chemistry and Pharmacognosy, University of Illinois at Chicago, 833 S Wood St, MC 781, Room 539, Chicago, IL, 60612, USA.
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Lanthionine and Other Relevant Sulfur Amino Acid Metabolites: Detection of Prospective Uremic Toxins in Serum by Multiple Reaction Monitoring Tandem Mass Spectrometry. Methods Mol Biol 2019; 2007:9-17. [PMID: 31148103 DOI: 10.1007/978-1-4939-9528-8_2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
In the context of the vascular effects of hydrogen sulfide (H2S), it is known that this gaseous endogenous biological modulator of inflammation, oxidative stress, etc. is a potent vasodilator. Chronic renal failure, a common disease affecting the aging population, is characterized by low levels of H2S in plasma and tissues, which could mediate their typical hypertensive pattern, along with other abnormalities. Lanthionine and homolanthionine, natural non-proteinogenic amino acids, are formed as side products of H2S production. Also in consideration of the intrinsic difficulties in H2S measuring, these compounds have been proposed as reliable and stable markers of H2S synthesis. However, in the setting of chronic renal failure patients on hemodialysis, they represent typical retention products (without ruling out the possibility of an increased intestinal synthesis) and prospective novel uremic toxins. Here, a method utilizing liquid chromatography-electrospray tandem mass spectrometry (LC-MS/MS) in multiple reaction monitoring ion mode has been developed and evaluated for the determination of these key H2S metabolites in plasma, by using a triple quadrupole mass spectrometer.
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35
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Development of a mass spectrometry method for the characterization of a series of chitosan. Int J Biol Macromol 2019; 121:89-96. [DOI: 10.1016/j.ijbiomac.2018.09.194] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2018] [Revised: 09/02/2018] [Accepted: 09/28/2018] [Indexed: 11/17/2022]
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Amante E, Alladio E, Salomone A, Vincenti M, Marini F, Alleva G, De Luca S, Porpiglia F. Correlation between chronological and physiological age of males from their multivariate urinary endogenous steroid profile and prostatic carcinoma-induced deviation. Steroids 2018; 139:10-17. [PMID: 30232035 DOI: 10.1016/j.steroids.2018.09.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 09/05/2018] [Accepted: 09/10/2018] [Indexed: 11/21/2022]
Abstract
The biosynthesis of endogenous androgenic anabolic steroids (EAAS) in males varies with age. Knowledge of the general urinary EAAS profile's dependence from aging - not reported up to now - may represents a prerequisite for its exploitation in the screening and diagnostic support for several pathologies. Extended urinary EAAS profiles were obtained from healthy and pathological individuals, using a GC-MS method which was fully validated by a stepwise, analyst-independent scheme. Seventeen EAAS and five of their concentration ratios were determined and investigated using multivariate statistical methods. A regression model based on Kernel partial least squares algorithm was built to correlate the chronological age of healthy male individuals with their "physiological age" as determined from their urinary EAAS profile. Strong correlation (R2 = 0.75; slope = 0.747) and good prediction ability of the real chronological age was inferred from EAAS data. In contrast, patients with recent diagnosis (not pharmacologically treated) of prostatic carcinoma (PCa) exhibited a comprehensive EAAS profile with strong negative deviation from the model, corresponding a younger predicted age. This result is possibly related to the activation of anomalous steroid biosynthesis induced from PCa. Over a restricted 60-80 years-old population, PLS-discriminant analysis (DA) was used to distinguish healthy subjects from patients with untreated PCa. PLS-DA yielded excellent discrimination (sensitivity and specificity >90%) between healthy and pathological individuals. This proof-of-concept study provides a preliminary evaluation of multivariate DA on wide EAAS profiles as a screening method to distinguish PCa from non-pathological conditions, overcoming the potentially interfering effect of ageing.
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Affiliation(s)
- Eleonora Amante
- Dipartimento di Chimica, Università degli Studi di Torino, Via P. Giuria 7, 10125 Torino, Italy; Centro Regionale Antidoping e di Tossicologia "A. Bertinaria", Regione Gonzole 10/1, 10043 Orbassano, Torino, Italy
| | - Eugenio Alladio
- Dipartimento di Chimica, Università degli Studi di Torino, Via P. Giuria 7, 10125 Torino, Italy; Centro Regionale Antidoping e di Tossicologia "A. Bertinaria", Regione Gonzole 10/1, 10043 Orbassano, Torino, Italy
| | - Alberto Salomone
- Centro Regionale Antidoping e di Tossicologia "A. Bertinaria", Regione Gonzole 10/1, 10043 Orbassano, Torino, Italy
| | - Marco Vincenti
- Dipartimento di Chimica, Università degli Studi di Torino, Via P. Giuria 7, 10125 Torino, Italy; Centro Regionale Antidoping e di Tossicologia "A. Bertinaria", Regione Gonzole 10/1, 10043 Orbassano, Torino, Italy.
| | - Federico Marini
- Dipartimento di Chimica - Sapienza, Università di Roma, P.le Aldo Moro 5, 00185 Rome, Italy
| | - Giorgio Alleva
- Divisione di Urologia, Dipartimento di Scienze Cliniche e Biologiche, Università di Torino, Ospedale San Luigi, Regione Gonzole 10, 10043 Orbassano, Turin, Italy
| | - Stefano De Luca
- Divisione di Urologia, Dipartimento di Scienze Cliniche e Biologiche, Università di Torino, Ospedale San Luigi, Regione Gonzole 10, 10043 Orbassano, Turin, Italy
| | - Francesco Porpiglia
- Divisione di Urologia, Dipartimento di Scienze Cliniche e Biologiche, Università di Torino, Ospedale San Luigi, Regione Gonzole 10, 10043 Orbassano, Turin, Italy
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Salomone A, Gerace E, Di Corcia D, Alladio E, Vincenti M, Kintz P. Hair analysis can provide additional information in doping and forensic cases involving clostebol. Drug Test Anal 2018; 11:95-101. [DOI: 10.1002/dta.2469] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 07/09/2018] [Accepted: 07/09/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Alberto Salomone
- Centro Regionale Antidoping “A. Bertinaria” - Laboratorio Regionale di Tossicologia; Orbassano (TO) Italy
| | - Enrico Gerace
- Centro Regionale Antidoping “A. Bertinaria” - Laboratorio Regionale di Tossicologia; Orbassano (TO) Italy
| | - Daniele Di Corcia
- Centro Regionale Antidoping “A. Bertinaria” - Laboratorio Regionale di Tossicologia; Orbassano (TO) Italy
| | - Eugenio Alladio
- Centro Regionale Antidoping “A. Bertinaria” - Laboratorio Regionale di Tossicologia; Orbassano (TO) Italy
- Dipartimento di Chimica; Università degli Studi di Torino; Turin Italy
| | - Marco Vincenti
- Centro Regionale Antidoping “A. Bertinaria” - Laboratorio Regionale di Tossicologia; Orbassano (TO) Italy
- Dipartimento di Chimica; Università degli Studi di Torino; Turin Italy
| | - Pascal Kintz
- X-Pertise Consulting; Oberhausbergen France
- Institut de Médecine légale; Strasbourg France
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Simultaneous determination of steroid drugs in the ointment via magnetic solid phase extraction followed by HPLC-UV. J Pharm Anal 2018; 8:250-257. [PMID: 30140489 PMCID: PMC6104151 DOI: 10.1016/j.jpha.2018.05.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Revised: 04/13/2018] [Accepted: 05/26/2018] [Indexed: 11/22/2022] Open
Abstract
The copper-coated iron oxide nanoparticles with core-shell were produced by deposition of a Cu shell on Fe3O4 NPs through reduction of Cu2+ ions in solution using NaBH4. Subsequently, the organosulfur compound, bis-(2,4,4-trimethylpentyl)-dithiophosphinic acid (b-TMP-DTPA), was used to form self-assembled monolayer in order to modify sorbent's surface via covalent bonding between Cu and thiol (–SH) terminal groups. The prepared magnetic nanoparticles were characterized by using Fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), transmission electron microscope (TEM), vibrating sample magnetometer (VSM) and thermo gravimetric analysis (TGA). Then, the application of this new sorbent was investigated to extract the steroid drugs in ointment samples with the aid of ultrasound. An external magnetic field was applied to collect the magnetic nanoparticles (MNPs). The extracted analytes were desorbed using acetonitrile. The obtained extraction solution was analyzed by HPLC-UV. The main affecting factors on the extraction efficiency including pH, sonication time, amount of sorbent, salt concentration, and desorption conditions were optimized in detail. Under the optimum conditions, good linearity was obtained in the range of 2.5–250.0 µg/ L with reasonable linearity (R2 > 0.99) and the limits of detection (LODs) ranged between 0.5 and 1.0 µg/L (based on S/N = 3). Repeatability (intra-day precision) based on five replicates and preconcentration factors were calculated to be 3.6%–4.7% and 87–116, respectively. Relative recoveries in ointment samples at two spiked levels of the target analytes were obtained in the range of 90.0%–103.2%. The results illustrated that the Fe3O4@Cu@ b-TMP-DTPA NPs have the capability of extraction of steroid drugs from ointment samples.
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Cyclodextrin based polymer sorbents for micro-solid phase extraction followed by liquid chromatography tandem mass spectrometry in determination of endogenous steroids. J Chromatogr A 2018; 1543:23-33. [DOI: 10.1016/j.chroma.2018.02.032] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2017] [Revised: 02/16/2018] [Accepted: 02/19/2018] [Indexed: 12/20/2022]
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40
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Some Applications of Liquid Chromatography-Mass Spectrometry in the Biomedical Field. ACTA ACUST UNITED AC 2018. [DOI: 10.1016/bs.coac.2017.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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41
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Potential of saliva steroid profiling for the detection of endogenous steroid abuse: Reference thresholds for oral fluid steroid concentrations and ratios. Anal Chim Acta 2018; 999:1-12. [DOI: 10.1016/j.aca.2017.11.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Accepted: 11/03/2017] [Indexed: 12/18/2022]
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Chang HY, Chen CT, Ko CL, Chen YJ, Chen YJ, Hsu WL, Juo CG, Sung TY. iTop-Q: an Intelligent Tool for Top-down Proteomics Quantitation Using DYAMOND Algorithm. Anal Chem 2017; 89:13128-13136. [DOI: 10.1021/acs.analchem.7b02343] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Hui-Yin Chang
- Institute
of Information Science, Academia Sinica, Taipei 115, Taiwan
| | - Ching-Tai Chen
- Institute
of Information Science, Academia Sinica, Taipei 115, Taiwan
| | - Chu-Ling Ko
- Department
of Computer Science, National Chiao Tung University, Hsinchu 300, Taiwan
| | - Yi-Ju Chen
- Institute
of Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Yu-Ju Chen
- Institute
of Chemistry, Academia Sinica, Taipei 115, Taiwan
| | - Wen-Lian Hsu
- Institute
of Information Science, Academia Sinica, Taipei 115, Taiwan
| | - Chiun-Gung Juo
- Molecular
Medicine Research Center, Chang Gung University, Taoyuan 333, Taiwan
- PharmaEssentia Corp., Taipei 115, Taiwan
| | - Ting-Yi Sung
- Institute
of Information Science, Academia Sinica, Taipei 115, Taiwan
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Determination of selected endogenous anabolic androgenic steroids and ratios in urine by ultra high performance liquid chromatography tandem mass spectrometry and isotope pattern deconvolution. J Chromatogr A 2017; 1515:172-178. [PMID: 28803647 DOI: 10.1016/j.chroma.2017.08.006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 07/19/2017] [Accepted: 08/02/2017] [Indexed: 12/19/2022]
Abstract
An isotope dilution mass spectrometry (IDMS) method for the determination of selected endogenous anabolic androgenic steroids (EAAS) in urine by UHPLC-MS/MS has been developed using the isotope pattern deconvolution (IPD) mathematical tool. The method has been successfully validated for testosterone, epitestosterone, androsterone and etiocholanolone, employing their respective deuterated analogs using two certified reference materials (CRM). Accuracy was evaluated as recovery of the certified values and ranged from 75% to 108%. Precision was assessed in intraday (n=5) and interday (n=4) experiments, with RSDs below 5% and 10% respectively. The method was also found suitable for real urine samples, with limits of detection (LOD) and quantification (LOQ) below the normal urinary levels. The developed method meets the requirements established by the World Anti-Doping Agency for the selected steroids for Athlete Biological Passport (ABP) measurements, except in the case of androsterone, which is currently under study.
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Matas D, Koren L. Age-related testosterone declines can be detected in men's fingernails. Can J Physiol Pharmacol 2017; 96:76-79. [PMID: 28763621 DOI: 10.1139/cjpp-2017-0193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Testosterone plays multiple roles in the regulation of development, physiology, reproduction, and behavior. Age-related testosterone declines are expected in the population. However, measuring circulating testosterone is especially challenging because concentrations are labile, responding to social situations and challenges. Matrices that integrate long-term testosterone levels are therefore valuable as biomarkers of endogenous levels as well as chronic exposures. Here, we report on a simple method to extract and measure accumulated testosterone from human fingernails using commercial enzyme immunoassay kits. Furthermore, we demonstrate known human testosterone sex and age trends. Our method is especially useful for quantifying testosterone in men's nails, where a small amount of matrix is required. Thus, this approach is a potential tool for biomonitoring endogenous as well as exogenous testosterone exposure. We suggest considering nails as an alternative matrix for quantifying other steroids as well.
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Affiliation(s)
- Devorah Matas
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 5290002, Israel.,The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 5290002, Israel
| | - Lee Koren
- The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 5290002, Israel.,The Mina and Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 5290002, Israel
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Pizzato EC, Filonzi M, Rosa HSD, de Bairros AV. Pretreatment of different biological matrices for exogenous testosterone analysis: a review. Toxicol Mech Methods 2017; 27:641-656. [DOI: 10.1080/15376516.2017.1351015] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
| | - Marcelo Filonzi
- Setor de Química Especial, Hospital Israelita Albert Einstein, São Paulo, Brazil
- Faculdade de Ciências Farmacêuticas, Universidade de São Paulo, São Paulo, Brazil
| | - Hemerson Silva da Rosa
- Laboratório de Desenvolvimento e Controle de Qualidade, Universidade Federal do Pampa, Uruguaiana, Brazil
| | - André Valle de Bairros
- Laboratório de Desenvolvimento e Controle de Qualidade, Universidade Federal do Pampa, Uruguaiana, Brazil
- Núcleo Aplicado a Toxicologia, Departamento de Análises Clínicas e Toxicológicas, Universidade Federal de Santa Maria, Santa Maria, Brazil
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Pitarch-Motellón J, Roig-Navarro AF, Sancho JV, Ibáñez M, Fabregat-Cabello N, Pozo OJ, Ventura R, García Alonso JI, Rodríguez-González P, González Gago A, Ereño Artabe A, Van Eenoo P, Deventer K, Dehnes Y, Rzeppa S. Evaluation of uncertainty sources in the determination of testosterone in urine by calibration-based and isotope dilution quantification using ultra high performance liquid chromatography tandem mass spectrometry. J Chromatogr A 2017; 1508:73-80. [PMID: 28601363 DOI: 10.1016/j.chroma.2017.05.072] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2017] [Revised: 05/02/2017] [Accepted: 05/31/2017] [Indexed: 12/17/2022]
Abstract
Three quantification methodologies, namely calibration with internal standard (Cal-IS, non-weighted), weighted calibration with internal standard (wCal-IS) and isotope pattern deconvolution (IPD) have been used for the determination of testosterone in urine by LC-MS/MS. Uncertainty has been calculated and compared for the three methodologies through intra- and inter-laboratory reproducibility assays. IPD showed the best performance for the intra-laboratory reproducibility, with RSD and combined uncertainty values below 4% and 9% respectively. wCal-IS showed similar performance, while Cal-IS where not constant and clearly worse at the lowest concentration assayed (2ng/mL) reaching RSD values up to 16%. The inter-laboratory assay indicated similar results although wCal-IS RSD (20%) was higher than IPD (10%) and Cal-IS get worse with RSD higher than 40% for the lowest concentration level. Uncertainty budgets calculated for the three procedures revealed that intercept and slope were the most important factors contributing to uncertainty for Cal-IS. The main factors for wCal-IS and IPD were the volumes of sample and/or standard measured.
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Affiliation(s)
- J Pitarch-Motellón
- Research Institute for Pesticides and Water, Universitat Jaume I, E-12071, Castelló, Spain
| | - A F Roig-Navarro
- Research Institute for Pesticides and Water, Universitat Jaume I, E-12071, Castelló, Spain.
| | - J V Sancho
- Research Institute for Pesticides and Water, Universitat Jaume I, E-12071, Castelló, Spain
| | - M Ibáñez
- Research Institute for Pesticides and Water, Universitat Jaume I, E-12071, Castelló, Spain
| | | | - O J Pozo
- Bioanalysis Research Group, IMIM, Hospital del Mar Medical Research Institute, Barcelona, Spain
| | - Rosa Ventura
- Barcelona Antidoping Laboratory, Doping Control Research Group, Fundació IMIM, Barcelona, Spain.
| | - J I García Alonso
- Department of Physical and Analytical Chemistry, University of Oviedo, Oviedo, Spain
| | | | - Adriana González Gago
- Department of Physical and Analytical Chemistry, University of Oviedo, Oviedo, Spain
| | - Amaia Ereño Artabe
- Department of Physical and Analytical Chemistry, University of Oviedo, Oviedo, Spain
| | - Peter Van Eenoo
- Ghent University, Department of Clinical Chemistry, Microbiology and Immunology, Doping Control Laboratory, Zwijnaarde, Belgium
| | - Koen Deventer
- Ghent University, Department of Clinical Chemistry, Microbiology and Immunology, Doping Control Laboratory, Zwijnaarde, Belgium
| | - Yvette Dehnes
- Norwegian Doping Control Laboratory, Oslo University Hospital, Oslo, Norway
| | - Sebastian Rzeppa
- Norwegian Doping Control Laboratory, Oslo University Hospital, Oslo, Norway
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48
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Decloedt A, Damen S, Vanhaecke L. Revealing the influence of glucocorticoid treatment on the excretion of anabolic-androgenic steroids in horses through in vitro digestive simulations and an in vivo case study. Res Vet Sci 2017; 115:132-137. [PMID: 28342428 DOI: 10.1016/j.rvsc.2017.02.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2016] [Revised: 09/04/2016] [Accepted: 02/23/2017] [Indexed: 10/20/2022]
Abstract
Anabolic-androgenic steroids (AAS) are strictly forbidden in equine sports because of their stimulating effect on muscle growth and performance. Nevertheless, low levels of AAS have been found in some horses, untreated with AAS. Glucocorticoids (GC), used as an anti-inflammatory therapy and structurally related to AAS, might play a role in this phenomenon. In order to unravel this possible correlation the influence of glucocorticoid treatment on the excretion of AAS was studied both in vivo and in vitro. In vivo effects were investigated by analysing urine samples collected from a gelding treated with betamethasone. Additionally, multiple in vitro digestion simulations were set up, according to a previously validated protocol, to study the possibility of a direct biotransformation of glucocorticoids to AAS, by the microbiota of the equine hindgut. Urine and in vitro digestion samples were extracted and analysed with UHPLC-MS/MS and UHPLC-Orbitrap-HRMS analytical methods. A significant influence on the urinary excretion of α-testosterone (αT), β-testosterone (βT) and androsta-1,4-diene-3,17-dione (ADD) was seen. αT-concentrations up to 20ng/mL were detected. ADD was not found before treatment but could be detected post-treatment. Cortisone and cortisol also peaked (>30ng/mL) between day 37 and 48 post-treatment. The in vitro digestion results however revealed no direct biotransformation of glucocorticoids to AAS by the microbiota of the equine hindgut. This study shows that a glucocorticoid treatment can disrupt the synthesis and excretion of AAS, not by direct biotransformation upon gastrointestinal digestion, but more likely by influencing the hypothalamic-pituitary-adrenal axis.
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Affiliation(s)
- Anneleen Decloedt
- Ghent University, Laboratory of Chemical Analysis, Faculty of Veterinary Medicine, Department of Veterinary Public Health and Food Safety, 133 Salisburylaan, B-9820 Merelbeke, Belgium; Ghent University, Laboratory of Biochemistry and Brewing, Faculty of Bioscience Engineering, Department of Applied Biosciences, 1 Valentin Vaerwyckweg, B-9000 Ghent, Belgium
| | - Sander Damen
- Ghent University, Laboratory of Chemical Analysis, Faculty of Veterinary Medicine, Department of Veterinary Public Health and Food Safety, 133 Salisburylaan, B-9820 Merelbeke, Belgium
| | - Lynn Vanhaecke
- Ghent University, Laboratory of Chemical Analysis, Faculty of Veterinary Medicine, Department of Veterinary Public Health and Food Safety, 133 Salisburylaan, B-9820 Merelbeke, Belgium.
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Kotronoulas A, Gomez-Gomez A, Segura J, Ventura R, Joglar J, Pozo OJ. Evaluation of two glucuronides resistant to enzymatic hydrolysis as markers of testosterone oral administration. J Steroid Biochem Mol Biol 2017; 165:212-218. [PMID: 27328448 DOI: 10.1016/j.jsbmb.2016.06.006] [Citation(s) in RCA: 20] [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: 11/20/2015] [Revised: 05/11/2016] [Accepted: 06/17/2016] [Indexed: 10/21/2022]
Abstract
Testosterone (T) has traditionally been the most commonly reported doping agent by doping control laboratories. The screening of T misuse is performed by the quantification of six endogenous androgenic steroids and the ratio T/E included in the Athlete Biological Passport (ABP). The inclusion of additional metabolites can improve the screening capabilities of ABP. In this study, the potential of 3α-glucuronide-6β-hydroxyandrosterone (6OH-Andros3G) and 3α-glucuronide-6β-hydroxyetiocholanolone (6OH-Etio3G) as markers of T oral administration was evaluated. These glucuronides have been shown to be resistant to enzymatic hydrolysis and their quantification by means of liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS) was reported as the only way to obtain feasible results. Urine samples were collected from five volunteers before and after the oral administration of 40mg of T undecanoate and were analyzed by a LC-MS/MS method recently developed. Concentration of 6OH-Andros3G and 6OH-Etio3G compounds and those of the glucuronides of T (TG), epitestosterone (EG), androsterone and etiocholanolone were established and different concentration ratios were calculated. The detection windows (DWs) for the T administration obtained by each selected ratio were compared to the one of TG/EG. The results showed that four out of the nine tested markers presented DWs much larger for all volunteers than those obtained by the World Anti-Doping Agency established T/E marker or other alternative markers. The 6OH-Andros3G/EG, 6OH-Etio3G/EG, 6OH-Andros3G/TG and 6OH-Etio3G/TG markers were able to identify the T abuse up to 96h after the administration, extending our detection capability for the misuse up to 84h more than the classic marker. The importance of these markers was also highlighted by their prolonged capacity to detect the T misuse in the case of one volunteer whose TG/EG barely exceeded his individual threshold. As a consequence, the four markers presented in this study seem to have an exceptional potential as biomarkers of T oral administration.
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Affiliation(s)
- Aristotelis Kotronoulas
- Bioanalysis Research Group, IMIM, Hospital del Mar, Doctor Aiguader 88, 08003 Barcelona, Spain; Department of Biological Chemistry and Molecular Modelling, Institute of Advanced Chemistry of Catalonia, Spanish Council for Scientific Research (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Alex Gomez-Gomez
- Bioanalysis Research Group, IMIM, Hospital del Mar, Doctor Aiguader 88, 08003 Barcelona, Spain
| | - Jordi Segura
- Bioanalysis Research Group, IMIM, Hospital del Mar, Doctor Aiguader 88, 08003 Barcelona, Spain; Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Doctor Aiguader 88, 08003 Barcelona, Spain
| | - Rosa Ventura
- Bioanalysis Research Group, IMIM, Hospital del Mar, Doctor Aiguader 88, 08003 Barcelona, Spain; Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Doctor Aiguader 88, 08003 Barcelona, Spain
| | - Jesús Joglar
- Department of Biological Chemistry and Molecular Modelling, Institute of Advanced Chemistry of Catalonia, Spanish Council for Scientific Research (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Oscar J Pozo
- Bioanalysis Research Group, IMIM, Hospital del Mar, Doctor Aiguader 88, 08003 Barcelona, Spain.
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Determination of cortisol in lake sturgeon (Acipenser fulvescens) eggs by liquid chromatography tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1040:162-168. [PMID: 27984758 DOI: 10.1016/j.jchromb.2016.11.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 11/17/2016] [Accepted: 11/18/2016] [Indexed: 11/21/2022]
Abstract
Quantifying cortisol concentrations in fish eggs is important to understand the effects of environmental conditions on maternal physiological condition and on egg provisioning and quality. Data are particularly relevant to studies of the ecology of threatened species such as lake sturgeon (Aciperser fulvescens) as well as assessments of larval physical and behavioral phenotypes, fish health and caviar quality in sturgeon aquaculture. This study focuses on development of bioanalytical methods for high sensitivity and robust determination of cortisol in sturgeon eggs. Sample preparation was optimized after investigating protein precipitation and liquid-liquid extraction techniques. Ethyl acetate was found to be the most efficient solvent (recovery parameter) and also provided the best sample clean up (matrix effect parameter). The method was determined to be linear for cortisol concentrations between 0.025 and 100ng/mL. The limits of detection and quantification were 0.025 and 0.1ng/mL respectively. Intra- and inter-day performances of the method were validated at three concentrations (0.25; 10 and 100ng/mL). The method was applied to field-collected samples for the determination of endogenous cortisol in lake sturgeon eggs. Cortisol was detected in all egg samples and statistical analysis showed significant differences between fertilized and non-fertilized eggs.
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