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Andra SS, Austin C, Patel D, Dolios G, Awawda M, Arora M. Trends in the application of high-resolution mass spectrometry for human biomonitoring: An analytical primer to studying the environmental chemical space of the human exposome. ENVIRONMENT INTERNATIONAL 2017; 100:32-61. [PMID: 28062070 PMCID: PMC5322482 DOI: 10.1016/j.envint.2016.11.026] [Citation(s) in RCA: 98] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 11/23/2016] [Accepted: 11/27/2016] [Indexed: 05/05/2023]
Abstract
Global profiling of xenobiotics in human matrices in an untargeted mode is gaining attention for studying the environmental chemical space of the human exposome. Defined as the study of a comprehensive inclusion of environmental influences and associated biological responses, human exposome science is currently evolving out of the metabolomics science. In analogy to the latter, the development and applications of high resolution mass spectrometry (HRMS) has shown potential and promise to greatly expand our ability to capture the broad spectrum of environmental chemicals in exposome studies. HRMS can perform both untargeted and targeted analysis because of its capability of full- and/or tandem-mass spectrum acquisition at high mass accuracy with good sensitivity. The collected data from target, suspect and non-target screening can be used not only for the identification of environmental chemical contaminants in human matrices prospectively but also retrospectively. This review covers recent trends and advances in this field. We focus on advances and applications of HRMS in human biomonitoring studies, and data acquisition and mining. The acquired insights provide stepping stones to improve understanding of the human exposome by applying HRMS, and the challenges and prospects for future research.
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Affiliation(s)
- Syam S Andra
- Exposure Biology, Senator Frank R. Lautenberg Environmental Health Sciences Laboratory, Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
| | - Christine Austin
- Exposure Biology, Senator Frank R. Lautenberg Environmental Health Sciences Laboratory, Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Dhavalkumar Patel
- Exposure Biology, Senator Frank R. Lautenberg Environmental Health Sciences Laboratory, Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Georgia Dolios
- Exposure Biology, Senator Frank R. Lautenberg Environmental Health Sciences Laboratory, Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Mahmoud Awawda
- Exposure Biology, Senator Frank R. Lautenberg Environmental Health Sciences Laboratory, Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Manish Arora
- Exposure Biology, Senator Frank R. Lautenberg Environmental Health Sciences Laboratory, Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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52
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Tyrkkö E, Andersson M, Kronstrand R. The Toxicology of New Psychoactive Substances: Synthetic Cathinones and Phenylethylamines. Ther Drug Monit 2016; 38:190-216. [PMID: 26587869 DOI: 10.1097/ftd.0000000000000263] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
BACKGROUND New psychoactive substances (NPSs) are substitutes for classical drugs of abuse and there are now compounds available from all groups of classical drugs of abuse. During 2014, the number of synthetic cathinones increased dramatically and, together with phenylethylamines, they dominate the NPS markets in the European Union. In total, 31 cathinones and 9 phenylethylamines were encountered in 2014. The aim of this article was to summarize the existing knowledge about the basic pharmacology, metabolism, and human toxicology of relevant synthetic cathinones and phenylethylamines. Compared with existing reviews, we have also compiled the existing case reports from both fatal and nonfatal intoxications. METHODS We performed a comprehensive literature search using bibliographic databases PubMed and Web of Science, complemented with Google Scholar. The focus of the literature search was on original articles, case reports, and previously published review articles published in 2014 or earlier. RESULTS The rapid increase of NPSs is a growing concern and sets new challenges not only for societies in drug prevention and legislation but also in clinical and forensic toxicology. In vivo and in vitro studies have demonstrated that the pharmacodynamic profile of cathinones is similar to that of other psychomotor stimulants. Metabolism studies show that cathinones and phenylethylamines are extensively metabolized; however, the parent compound is usually detectable in human urine. In vitro studies have shown that many cathinones and phenylethylamines are metabolized by CYP2D6 enzymes. This indicates that these drugs may have many possible drug-drug interactions and that genetic polymorphism may influence their toxicity. However, the clinical and toxicological relevance of CYP2D6 in adverse effects of cathinones and phenylethylamines is questionable, because these compounds are metabolized by other enzymes as well. The toxidromes commonly encountered after ingestion of cathinones and phenylethylamines are mainly of sympathomimetic and hallucinogenic character with a risk of excited delirium and life-threatening cardiovascular effects. CONCLUSIONS The acute and chronic toxicity of many NPSs is unknown or very sparsely investigated. There is a need for evidence-based-treatment recommendations for acute intoxications and a demand for new strategies to analyze these compounds in clinical and forensic cases.
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Affiliation(s)
- Elli Tyrkkö
- Department of Forensic Genetics and Forensic Toxicology, National Board of Forensic Medicine, Linköping, Sweden
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53
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Arrabito G, Cavaleri F, Montalbano V, Vetri V, Leone M, Pignataro B. Monitoring few molecular binding events in scalable confined aqueous compartments by raster image correlation spectroscopy (CADRICS). LAB ON A CHIP 2016; 16:4666-4676. [PMID: 27812580 DOI: 10.1039/c6lc01072e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The assembly of scalable liquid compartments for binding assays in array formats constitutes a topic of fundamental importance in life sciences. This challenge can be addressed by mimicking the structure of cellular compartments with biological native conditions. Here, inkjet printing is employed to develop up to hundreds of picoliter aqueous droplet arrays stabilized by oil-confinement with mild surfactants (Tween-20). The aqueous environments constitute specialized compartments in which biomolecules may exploit their function and a wide range of molecular interactions can be quantitatively investigated. Raster Image Correlation Spectroscopy (RICS) is employed to monitor in each compartment a restricted range of dynamic intermolecular events demonstrated through protein-binding assays involving the biotin/streptavidin model system.
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Affiliation(s)
- G Arrabito
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Ed. 17, V.le delle Scienze, 90128 Palermo, Italy.
| | - F Cavaleri
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Ed. 17, V.le delle Scienze, 90128 Palermo, Italy.
| | - V Montalbano
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Ed. 17, V.le delle Scienze, 90128 Palermo, Italy.
| | - V Vetri
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Ed. 17, V.le delle Scienze, 90128 Palermo, Italy. and Aten Center, Università degli Studi di Palermo, Ed. 18, V.le delle Scienze, 90128 Palermo, Italy
| | - M Leone
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Ed. 17, V.le delle Scienze, 90128 Palermo, Italy. and Aten Center, Università degli Studi di Palermo, Ed. 18, V.le delle Scienze, 90128 Palermo, Italy
| | - B Pignataro
- Dipartimento di Fisica e Chimica, Università degli Studi di Palermo, Ed. 17, V.le delle Scienze, 90128 Palermo, Italy. and Aten Center, Università degli Studi di Palermo, Ed. 18, V.le delle Scienze, 90128 Palermo, Italy
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Bidny S, Gago K, Chung P, Albertyn D, Pasin D. Simultaneous Screening and Quantification of Basic, Neutral and Acidic Drugs in Blood Using UPLC-QTOF-MS. J Anal Toxicol 2016; 41:181-195. [DOI: 10.1093/jat/bkw118] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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55
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Mollerup CB, Dalsgaard PW, Mardal M, Linnet K. Targeted and non-targeted drug screening in whole blood by UHPLC-TOF-MS with data-independent acquisition. Drug Test Anal 2016; 9:1052-1061. [DOI: 10.1002/dta.2120] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2016] [Revised: 10/13/2016] [Accepted: 10/13/2016] [Indexed: 01/21/2023]
Affiliation(s)
- Christian Brinch Mollerup
- Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health and Medical Sciences; University of Copenhagen; Denmark
| | - Petur Weihe Dalsgaard
- Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health and Medical Sciences; University of Copenhagen; Denmark
| | - Marie Mardal
- Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health and Medical Sciences; University of Copenhagen; Denmark
| | - Kristian Linnet
- Section of Forensic Chemistry, Department of Forensic Medicine, Faculty of Health and Medical Sciences; University of Copenhagen; Denmark
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56
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57
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Oberacher H, Arnhard K. Current status of non-targeted liquid chromatography-tandem mass spectrometry in forensic toxicology. Trends Analyt Chem 2016. [DOI: 10.1016/j.trac.2015.12.019] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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58
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Strategy for non-target ionic analysis by capillary electrophoresis with ultraviolet detection. Anal Bioanal Chem 2016; 409:1067-1077. [DOI: 10.1007/s00216-016-0025-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Revised: 10/03/2016] [Accepted: 10/10/2016] [Indexed: 01/11/2023]
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59
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Cutillas PR. Targeted In-Depth Quantification of Signaling Using Label-Free Mass Spectrometry. Methods Enzymol 2016; 585:245-268. [PMID: 28109432 DOI: 10.1016/bs.mie.2016.09.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Protein phosphorylation encodes information on the activity of kinase-driven signaling pathways that regulate cell biology. This chapter discusses an approach, named TIQUAS (targeted in-depth quantification of signaling), to quantify cell signaling comprehensively and without bias. The workflow-based on mass spectrometry (MS) and computational science-consists of targeting the analysis of phosphopeptides previously identified by shotgun liquid chromatography tandem MS (LC-MS/MS) across the samples that are being compared. TIQUAS therefore takes advantage of concepts derived from both targeted (data-independent) and data-dependent acquisition methods; phosphorylation sites are quantified in all experimental samples regardless of whether or not these phosphopeptides were identified by MS/MS in all runs. As a result, datasets are obtained containing quantitative information on several thousand phosphorylation sites in as many samples and replicates as required in the experimental design, and these rich datasets are devoid of a significant number of missing data points. This chapter discussed the biochemical, analytical, and computational procedures required to apply the approach and for obtaining a biological interpretation of the data in the context of our understanding of cell signaling regulation and kinase-substrate relationships.
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Affiliation(s)
- P R Cutillas
- Barts Cancer Institute, Queen Mary University of London, John Vane Science Centre, London, United Kingdom.
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60
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Colby JM, Thoren KL, Lynch KL. Optimization and Validation of High-Resolution Mass Spectrometry Data Analysis Parameters. J Anal Toxicol 2016; 41:1-5. [DOI: 10.1093/jat/bkw112] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 08/12/2016] [Accepted: 08/16/2016] [Indexed: 01/26/2023] Open
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61
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Montesano C, Vannutelli G, Gregori A, Ripani L, Compagnone D, Curini R, Sergi M. Broad Screening and Identification of Novel Psychoactive Substances in Plasma by High-Performance Liquid Chromatography-High-Resolution Mass Spectrometry and Post-run Library Matching. J Anal Toxicol 2016; 40:519-28. [PMID: 27466313 DOI: 10.1093/jat/bkw043] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Accepted: 03/26/2016] [Indexed: 11/13/2022] Open
Abstract
Drug abuse is today a growing global problem. Often the consumers are not aware about the type of substances they are using and the correlated risks. In recent years, new psychoactive substances (NPS) appeared in the illicit market. The presence of NPS, such as synthetic cathinones, cannabinoids and phenethylamines, which are known to be pharmacologically and toxicologically hazardous, has been frequently reported. The aim of this study was the development of a liquid chromatography-high-resolution mass spectrometry (LC-HRMS) method for a broad screening of NPS in plasma. Data acquisition was in MS/MS and full-scan modes and the method was validated for 25 NPS belonging to different chemical classes. Quantitative results have been obtained for these analytes with limits of quantification ranging from 0.03 to 0.4 ng/mL. The method was proven to be suitable for the screening of additional substances; to this aim, a post-run library matching was conducted for every sample with an in-house database containing over 300 NPS and known metabolites. The library may be constantly expanded with new drugs, in order to obtain a broad screening of NPS in biological matrices.
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Affiliation(s)
- Camilla Montesano
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Gabriele Vannutelli
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Adolfo Gregori
- Department of Scientific Investigation (RIS), Carabinieri, Viale di Tor di Quinto 119, 00191 Rome, Italy
| | - Luigi Ripani
- Department of Scientific Investigation (RIS), Carabinieri, Viale di Tor di Quinto 119, 00191 Rome, Italy
| | - Dario Compagnone
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via C. Lerici 1, 64023 Mosciano Sant'Angelo, TE, Italy
| | - Roberta Curini
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Manuel Sergi
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via C. Lerici 1, 64023 Mosciano Sant'Angelo, TE, Italy
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62
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Telving R, Hasselstrøm JB, Andreasen MF. Targeted toxicological screening for acidic, neutral and basic substances in postmortem and antemortem whole blood using simple protein precipitation and UPLC-HR-TOF-MS. Forensic Sci Int 2016; 266:453-461. [PMID: 27458995 DOI: 10.1016/j.forsciint.2016.07.004] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2016] [Revised: 06/29/2016] [Accepted: 07/05/2016] [Indexed: 11/26/2022]
Abstract
A broad targeted screening method based on broadband collision-induced dissociation (bbCID) ultra-performance liquid chromatography high-resolution time-of-flight mass spectrometry (UPLC-HR-TOF-MS) was developed and evaluated for toxicological screening of whole blood samples. The acidic, neutral and basic substances covered by the method were identified in postmortem and antemortem whole blood samples from forensic autopsy cases, clinical forensic cases and driving under the influence of drugs (DUID) cases by a reverse target database search. The screening method covered 467 substances. Validation was performed on spiked whole blood samples and authentic postmortem and antemortem whole blood samples. For most of the basic drugs, the established cut-off limits were very low, ranging from 0.25ng/g to 50ng/g. The established cut-off limits for most neutral and acidic drugs, were in the range from 50ng/g to 500ng/g. Sample preparation was performed using simple protein precipitation of 300μL of whole blood with acetonitrile and methanol. Ten microliters of the reconstituted extract were injected and separated within a 13.5min UPLC gradient reverse-phase run. Positive electrospray ionization (ESI) was used to generate the ions in the m/z range of 50-1000. Fragment ions were generated by bbCID. Identification was based on retention time, accurate mass, fragment ion(s) and isotopic pattern. A very sensitive broad toxicological screening method using positive electrospray ionization UPLC-HR-TOF-MS was achieved in one injection. This method covered basic substances, substances traditionally analyzed in negative ESI (e.g., salicylic acid), small highly polar substances such as beta- and gamma-hydroxybutyric acid (BHB and GHB, respectively) and highly non-polar substances such as amiodarone. The new method was shown to combine high sensitivity with a very broad scope that has not previously been reported in toxicological whole blood screening when using only one injection.
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Affiliation(s)
- Rasmus Telving
- Section for Forensic Chemistry, Department of Forensic Medicine, Aarhus University, Palle Juul-Jensens Boulevard 99, DK-8200 Aarhus N, Denmark
| | - Jørgen Bo Hasselstrøm
- Section for Forensic Chemistry, Department of Forensic Medicine, Aarhus University, Palle Juul-Jensens Boulevard 99, DK-8200 Aarhus N, Denmark
| | - Mette Findal Andreasen
- Section for Forensic Chemistry, Department of Forensic Medicine, Aarhus University, Palle Juul-Jensens Boulevard 99, DK-8200 Aarhus N, Denmark.
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63
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Pettersson Bergstrand M, Helander A, Hansson T, Beck O. Detectability of designer benzodiazepines in CEDIA, EMIT II Plus, HEIA, and KIMS II immunochemical screening assays. Drug Test Anal 2016; 9:640-645. [DOI: 10.1002/dta.2003] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2016] [Revised: 05/07/2016] [Accepted: 05/11/2016] [Indexed: 12/20/2022]
Affiliation(s)
| | - Anders Helander
- Department of Laboratory Medicine, Division of Clinical Pharmacology; Karolinska Institutet; Stockholm Sweden
- Department of Clinical Pharmacology; Karolinska University Laboratory; Stockholm Sweden
| | - Therese Hansson
- Department of Clinical Chemistry, Division of Laboratory Medicine; Skåne University Hospital; Lund Sweden
| | - Olof Beck
- Department of Laboratory Medicine, Division of Clinical Pharmacology; Karolinska Institutet; Stockholm Sweden
- Department of Clinical Pharmacology; Karolinska University Laboratory; Stockholm Sweden
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64
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Jindalertudomdee J, Hayashida M, Akutsu T. Enumeration Method for Structural Isomers Containing User-Defined Structures Based on Breadth-First Search Approach. J Comput Biol 2016; 23:625-40. [PMID: 27348756 DOI: 10.1089/cmb.2016.0056] [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: 11/13/2022] Open
Abstract
Enumeration of chemical structures satisfying given conditions is an important step in the discovery of new compounds and drugs, as well as the elucidation of the structure. One of the most frequently used conditions in the enumeration is the number of chemical elements that corresponds to the chemical formula. In this work, we propose a novel efficient enumeration algorithm, BfsStructEnum, which allows users to define desired cyclic structures and enumerates all nonredundant chemical compounds containing only defined structures as cyclic structures from a given chemical formula. To evaluate the performance, we confirm the number of enumerated structures of BfsStructEnum and MOLGEN 5.0, the latest version of a general-purpose structure generator. We also compare the computation time of BfsStructEnum with that of MOLGEN 5.0. The findings show that, given the same number of enumerated structures as MOLGEN 5.0, BfsStructEnum is significantly faster. By compressing a cyclic structure into a single node and representing chemical compounds by tree structures instead of normal graphs, the enumeration can be executed more efficiently.
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Affiliation(s)
- Jira Jindalertudomdee
- Laboratory of Mathematical Bioinformatics, Bioinformatics Center, Institute for Chemical Research, Kyoto University , Kyoto, Japan
| | - Morihiro Hayashida
- Laboratory of Mathematical Bioinformatics, Bioinformatics Center, Institute for Chemical Research, Kyoto University , Kyoto, Japan
| | - Tatsuya Akutsu
- Laboratory of Mathematical Bioinformatics, Bioinformatics Center, Institute for Chemical Research, Kyoto University , Kyoto, Japan
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65
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Multianalyte LC–MS-based methods in doping control: what are the implications for doping athletes? Bioanalysis 2016; 8:1129-32. [DOI: 10.4155/bio-2016-0083] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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66
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Ghaste M, Mistrik R, Shulaev V. Applications of Fourier Transform Ion Cyclotron Resonance (FT-ICR) and Orbitrap Based High Resolution Mass Spectrometry in Metabolomics and Lipidomics. Int J Mol Sci 2016; 17:ijms17060816. [PMID: 27231903 PMCID: PMC4926350 DOI: 10.3390/ijms17060816] [Citation(s) in RCA: 107] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 05/14/2016] [Accepted: 05/17/2016] [Indexed: 02/02/2023] Open
Abstract
Metabolomics, along with other "omics" approaches, is rapidly becoming one of the major approaches aimed at understanding the organization and dynamics of metabolic networks. Mass spectrometry is often a technique of choice for metabolomics studies due to its high sensitivity, reproducibility and wide dynamic range. High resolution mass spectrometry (HRMS) is a widely practiced technique in analytical and bioanalytical sciences. It offers exceptionally high resolution and the highest degree of structural confirmation. Many metabolomics studies have been conducted using HRMS over the past decade. In this review, we will explore the latest developments in Fourier transform mass spectrometry (FTMS) and Orbitrap based metabolomics technology, its advantages and drawbacks for using in metabolomics and lipidomics studies, and development of novel approaches for processing HRMS data.
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Affiliation(s)
- Manoj Ghaste
- Department of Biological Sciences, College of Arts and Sciences, University of North Texas, Denton, TX 76203, USA.
| | | | - Vladimir Shulaev
- Department of Biological Sciences, College of Arts and Sciences, University of North Texas, Denton, TX 76203, USA.
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67
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Simultaneous identification and quantification of new psychoactive substances in blood by GC-APCI-QTOFMS coupled to nitrogen chemiluminescence detection without authentic reference standards. Anal Bioanal Chem 2016; 408:3395-400. [DOI: 10.1007/s00216-016-9461-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2016] [Revised: 02/24/2016] [Accepted: 03/01/2016] [Indexed: 12/17/2022]
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68
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Multiple stage MS in analysis of plasma, serum, urine and in vitro samples relevant to clinical and forensic toxicology. Bioanalysis 2016; 8:457-81. [DOI: 10.4155/bio.16.15] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
This paper reviews MS approaches applied to metabolism studies, structure elucidation and qualitative or quantitative screening of drugs (of abuse) and/or their metabolites. Applications in clinical and forensic toxicology were included using blood plasma or serum, urine, in vitro samples, liquids, solids or plant material. Techniques covered are liquid chromatography coupled to low-resolution and high-resolution multiple stage mass analyzers. Only PubMed listed studies published in English between January 2008 and January 2015 were considered. Approaches are discussed focusing on sample preparation and mass spectral settings. Comments on advantages and limitations of these techniques complete the review.
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69
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Sun K, Luo Q, Gao Y, Huang Q. Laccase-catalyzed reactions of 17β-estradiol in the presence of humic acid: Resolved by high-resolution mass spectrometry in combination with (13)C labeling. CHEMOSPHERE 2016; 145:394-401. [PMID: 26692517 DOI: 10.1016/j.chemosphere.2015.11.117] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2015] [Revised: 11/13/2015] [Accepted: 11/28/2015] [Indexed: 06/05/2023]
Abstract
The widespread presence of estrogens in natural waters poses potential threats to the aquatic organisms and human health. It is known that estrogens undergo enzyme-catalyzed oxidative coupling (ECOC) reactions, which may impact their environmental fate and can be used in wastewater treatment to remove estrogens, but little information is available on how natural organic matter (NOM) may influence 17β-estradiol (E2) transformation in ECOC processes. A series of experiments were conducted to examine the transformation of E2 in aqueous solution containing humic acid (HA) as model NOM by laccase-mediated ECOC reactions. The impact of HA on the reaction behaviors and product distribution is systematically characterized. The presence of HA inhibited the extent of E2 self-coupling in laccase-mediated systems, while promoted cross-coupling between E2 and HA. Reconfiguration of humic molecules was also observed and characterized by changes in absorbance at 275 nm and the ratios between A250 nm/A365 nm. In particular, experiments were conducted with un-labeled E2 mixed with (13)C3-labeled E2 at a set ratio, with the products probed using high-resolution mass spectrometry (HRMS). The high m/z accuracy of HRMS enabled the use of isotope ratio as a tracer to identify possible cross-coupling products between E2 and HA. Such a method combining HRMS and isotope labeling provides a novel means for identification of products in a reaction system involving NOM or other complex matrices. These findings provide a basis for optimization of ECOC reactions for estrogen removal, and also help to understand the environmental transformation of estrogens.
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Affiliation(s)
- Kai Sun
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China; Department of Crop and Soil Sciences, University of Georgia, Griffin, GA 30223, USA
| | - Qi Luo
- Department of Crop and Soil Sciences, University of Georgia, Griffin, GA 30223, USA
| | - Yanzheng Gao
- Institute of Organic Contaminant Control and Soil Remediation, College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
| | - Qingguo Huang
- Department of Crop and Soil Sciences, University of Georgia, Griffin, GA 30223, USA.
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70
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Abstract
While gas chromatography-mass spectrometry (GC/MS) continues to be the forensic standard for toxicology, liquid chromatography coupled to tandem MS offers significant operational advantages for targeted confirmatory analysis. LC-high-resolution (HR)-MS has recently been available that offers advantages for untargeted analysis. HR-MS analyzers include the Orbitrap and time-of-flight MS. These instruments are capable of detecting 1 ppm mass resolution. Following soft ionization, this enables the assignment of exact molecular formula, limiting the number of candidate compounds. With this technique, presumptive identification of unknowns can be conducted without the need to match MS library spectra or comparison against known standards. For clinical toxicology, this can greatly expand on the number of drugs and metabolites that can be detected and reported on a presumptive basis. Definitive assignments of the compound's identity can be retrospectively determined with acquisition of the appropriate reference standard.
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71
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Suspect Screening of Pharmaceuticals and Related Bioactive Compounds, Their Metabolites and Their Transformation Products in the Aquatic Environment, Biota and Humans Using LC-HR-MS Techniques. APPLICATIONS OF TIME-OF-FLIGHT AND ORBITRAP MASS SPECTROMETRY IN ENVIRONMENTAL, FOOD, DOPING, AND FORENSIC ANALYSIS 2016. [DOI: 10.1016/bs.coac.2016.02.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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72
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Garg U, Zhang YV. Mass Spectrometry in Clinical Laboratory: Applications in Therapeutic Drug Monitoring and Toxicology. Methods Mol Biol 2016; 1383:1-10. [PMID: 26660168 DOI: 10.1007/978-1-4939-3252-8_1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Mass spectrometry (MS) has been used in research and specialized clinical laboratories for decades as a very powerful technology to identify and quantify compounds. In recent years, application of MS in routine clinical laboratories has increased significantly. This is mainly due to the ability of MS to provide very specific identification, high sensitivity, and simultaneous analysis of multiple analytes (>100). The coupling of tandem mass spectrometry with gas chromatography (GC) or liquid chromatography (LC) has enabled the rapid expansion of this technology. While applications of MS are used in many clinical areas, therapeutic drug monitoring, drugs of abuse, and clinical toxicology are still the primary focuses of the field. It is not uncommon to see mass spectrometry being used in routine clinical practices for those applications.
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Affiliation(s)
- Uttam Garg
- Department of Pathology and Laboratory Medicine, Children's Mercy Hospitals and Clinics, 2401 Gillham Road, Kansas City, MO, USA.
| | - Yan Victoria Zhang
- Department of Pathology and Laboratory Medicine, University of Rochester, Rochester, NY, USA
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73
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Compound identification in forensic toxicological analysis with untargeted LC-MS-based techniques. Bioanalysis 2015; 7:2825-40. [PMID: 26563687 DOI: 10.4155/bio.15.193] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Untargeted LC-MS/MS techniques have become indispensable tools for systematic toxicological analysis. Compound identification is based on the mass spectrometric information obtained, and this may include m/z, isotopic pattern, retention time and fragmentation information. All these different kinds of analytical features can be stored in libraries and databases. Currently, the most competent approach for compound identification involves tandem mass spectral library search. State-of-the-art databases were shown to be sensitive, specific, robust and instrument-independent. Low- and high-resolution instruments can both be used to develop efficient screening workflows. For automated and unattended acquisition of tandem mass spectral data, data-dependent acquisition control is the method of choice. Due to their impressive detection sensitivity, data-independent acquisition techniques are finding increased applicability.
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74
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Echeverria B, Etxebarria J, Ruiz N, Hernandez Á, Calvo J, Haberger M, Reusch D, Reichardt NC. Chemo-Enzymatic Synthesis of (13)C Labeled Complex N-Glycans As Internal Standards for the Absolute Glycan Quantification by Mass Spectrometry. Anal Chem 2015; 87:11460-7. [PMID: 26482441 DOI: 10.1021/acs.analchem.5b03135] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Methods for the absolute quantification of glycans are needed in glycoproteomics, during development and production of biopharmaceuticals and for the clinical analysis of glycan disease markers. Here we present a strategy for the chemo-enzymatic synthesis of (13)C labeled N-glycan libraries and provide an example for their use as internal standards in the profiling and absolute quantification of mAb glycans by matrix-assisted laser desorption ionization-time-of-flight (MALDI-TOF) mass spectrometry. A synthetic biantennary glycan precursor was (13)C-labeled on all four amino sugar residues and enzymatically derivatized to produce a library of 15 glycan isotopologues with a mass increment of 8 Da over the natural products. Asymmetrically elongated glycans were accessible by performing enzymatic reactions on partially protected UV-absorbing intermediates, subsequent fractionation by preparative HPLC, and final hydrogenation. Using a preformulated mixture of eight internal standards, we quantified the glycans in a monoclonal therapeutic antibody with excellent precision and speed.
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Affiliation(s)
- Begoña Echeverria
- Glycotechnology Group, CIC biomaGUNE , Paseo Miramon 182, 20009, San Sebastian, Spain
| | - Juan Etxebarria
- Glycotechnology Group, CIC biomaGUNE , Paseo Miramon 182, 20009, San Sebastian, Spain
| | - Nerea Ruiz
- Glycotechnology Group, CIC biomaGUNE , Paseo Miramon 182, 20009, San Sebastian, Spain
| | - Álvaro Hernandez
- Glycotechnology Group, CIC biomaGUNE , Paseo Miramon 182, 20009, San Sebastian, Spain
| | - Javier Calvo
- Mass Spectrometry Platform, CIC biomaGUNE , Paseo Miramon 182, 20009, San Sebastian, Spain
| | - Markus Haberger
- Pharma Biotech Development Penzberg, Roche Diagnostics GmbH , 82377 Penzberg, Germany
| | - Dietmar Reusch
- Pharma Biotech Development Penzberg, Roche Diagnostics GmbH , 82377 Penzberg, Germany
| | - Niels-Christian Reichardt
- Glycotechnology Group, CIC biomaGUNE , Paseo Miramon 182, 20009, San Sebastian, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina (CIBER-BBN) , Paseo Miramon 182, 20009 San Sebastian, Spain
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75
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Current status and recent advantages in derivatization procedures in human doping control. Bioanalysis 2015; 7:2537-56. [DOI: 10.4155/bio.15.172] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Derivatization is one of the most important steps during sample preparation in doping control analysis. Its main purpose is the enhancement of chromatographic separation and mass spectrometric detection of analytes in the full range of laboratory doping control activities. Its application is shown to broaden the detectable range of compounds, even in LC–MS analysis, where derivatization is not a prerequisite. The impact of derivatization initiates from the stage of the metabolic studies of doping agents up to the discovery of doping markers, by inclusion of the screening and confirmation procedures of prohibited substances in athlete's urine samples. Derivatization renders an unlimited number of opportunities to advanced analyte detection.
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76
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Grapp M, Maurer HH, Desel H. Systematic forensic toxicological analysis by GC-MS in serum using automated mass spectral deconvolution and identification system. Drug Test Anal 2015; 8:816-25. [DOI: 10.1002/dta.1848] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Revised: 06/30/2015] [Accepted: 07/01/2015] [Indexed: 01/23/2023]
Affiliation(s)
- Marcel Grapp
- Forensic Toxicological Laboratory; University Medical Center Göttingen, Georg-August-University; 37075 Göttingen Germany
| | - Hans H. Maurer
- Department of Experimental and Clinical Toxicology, Institute of Experimental and Clinical Pharmacology and Toxicology; Saarland University; Homburg (Saar) Germany
| | - Herbert Desel
- Forensic Toxicological Laboratory; University Medical Center Göttingen, Georg-August-University; 37075 Göttingen Germany
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77
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Helfer AG, Michely JA, Weber AA, Meyer MR, Maurer HH. Orbitrap technology for comprehensive metabolite-based liquid chromatographic–high resolution-tandem mass spectrometric urine drug screening – Exemplified for cardiovascular drugs. Anal Chim Acta 2015; 891:221-33. [DOI: 10.1016/j.aca.2015.08.018] [Citation(s) in RCA: 85] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 07/20/2015] [Accepted: 08/08/2015] [Indexed: 10/23/2022]
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78
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Luzzatto-Knaan T, Melnik AV, Dorrestein PC. Mass spectrometry tools and workflows for revealing microbial chemistry. Analyst 2015; 140:4949-66. [PMID: 25996313 PMCID: PMC5444374 DOI: 10.1039/c5an00171d] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Since the time Van Leeuwenhoek was able to observe microbes through a microscope, an innovation that led to the birth of the field of microbiology, we have aimed to understand how microorganisms function, interact and communicate. The exciting progress in the development of analytical technologies and workflows has demonstrated that mass spectrometry is a very powerful technique for the interrogation of microbiology at the molecular level. In this review, we aim to highlight the available and emerging tools in mass spectrometry for microbial analysis by overviewing the methods and workflow advances for taxonomic identification, microbial interaction, dereplication and drug discovery. We emphasize their potential for future development and point out unsolved problems and future directions that would aid in the analysis of the chemistry produced by microbes.
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Affiliation(s)
- Tal Luzzatto-Knaan
- Collaborative Mass Spectrometry Innovation Center, Skaggs School of Pharmacy and Pharmaceutical Sciences, University of California San Diego, La Jolla, California 92093, USA.
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79
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Chindarkar NS, Park HD, Stone JA, Fitzgerald RL. Comparison of Different Time of Flight-Mass Spectrometry Modes for Small Molecule Quantitative Analysis. J Anal Toxicol 2015; 39:675-85. [DOI: 10.1093/jat/bkv057] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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80
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Li T, Cao J, Li Z, Wang X, He P. Broad screening and identification of β-agonists in feed and animal body fluid and tissues using ultra-high performance liquid chromatography-quadrupole-orbitrap high resolution mass spectrometry combined with spectra library search. Food Chem 2015; 192:188-96. [PMID: 26304337 DOI: 10.1016/j.foodchem.2015.06.104] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 06/04/2015] [Accepted: 06/29/2015] [Indexed: 11/26/2022]
Abstract
Broad screening and identification of β-agonists in feed, serum, urine, muscle and liver samples was achieved in a quick and highly sensitive manner using ultra high performance liquid chromatography-quadrupole-orbitrap high resolution mass spectrometry (UHPLC-Q-Orbitrap HRMS) combined with a spectra library search. Solid-phase extraction technology was employed for sample purification and enrichment. After extraction and purification, the samples were analyzed using a Q-Orbitrap high-resolution mass spectrometer under full-scan and data-dependent MS/MS mode. The acquired mass spectra were compared with an in-house library (compound library and MS/MS mass spectral library) built with TraceFinder Software which contained the M/Z of the precursor ion, chemical formula, retention time, character fragment ions and the entire MS/MS spectra of 32 β-agonist standards. Screening was achieved by comparing 5 key mass spectral results and positive matches were marked. Using the developed method, the identification results from 10 spiked samples and 238 actual samples indicated that only 2% of acquired mass spectra produced false identities. The method validation results showed that the limit of detection ranged from 0.021-3.854 μg kg(-1)and 0.015-1.198 ng mL(-1) for solid and liquid samples, respectively.
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Affiliation(s)
- Tingting Li
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Jingjing Cao
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, PR China
| | - Zhen Li
- State Key Laboratory of Plant Physiology and Biochemistry, College of Biological Sciences, China Agricultural University, Beijing 100193, PR China
| | - Xian Wang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China
| | - Pingli He
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing 100193, PR China.
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81
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Sundström M, Pelander A, Simojoki K, Ojanperä I. Patterns of drug abuse among drug users with regular and irregular attendance for treatment as detected by comprehensive UHPLC-HR-TOF-MS. Drug Test Anal 2015; 8:39-45. [PMID: 26017246 DOI: 10.1002/dta.1818] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 03/31/2015] [Accepted: 05/01/2015] [Indexed: 11/06/2022]
Abstract
The most severe consequences of drug abuse include infectious diseases, overdoses, and drug-related deaths. As the range of toxicologically relevant compounds is continually changing due to the emergence of new psychoactive substances (NPS), laboratories are encountering analytical challenges. Current immunoassays are insufficient for determining the whole range of the drugs abused, and a broad-spectrum screening method is therefore needed. Here, the patterns of drug abuse in two groups of drug users were studied from urine samples using a comprehensive screening method based on high-resolution time-of-flight mass spectrometry. The two groups comprised drug abusers undergoing opioid maintenance treatment (OMT) or drug withdrawal therapy and routinely visiting a rehabilitation clinic, and drug abusers with irregular attendance at a harm reduction unit (HRU) and suspected of potential NPS abuse. Polydrug abuse was observed in both groups, but was more pronounced among the HRU subjects with a mean number of concurrent drugs per sample of 3.9, whereas among the regularly treated subjects the corresponding number was 2.1. NPS and pregabalin were more frequent among HRU subjects, and their abuse was always related to drug co-use. The most common drug combination for an HRU subject included amphetamine, cannabis, buprenorphine, benzodiazepine, and alpha-pyrrolidinovalerophenone. A typical set of drugs for treated subjects was buprenorphine, benzodiazepine, and occasionally amphetamine. Abuse of several concurrent drugs poses a higher risk of drug intoxication and a threat of premature termination of OMT. Since the subjects attending treatment used fewer concurrent drugs, this treatment could be valuable in reducing polydrug abuse.
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Affiliation(s)
- Mira Sundström
- University of Helsinki, Department of Forensic Medicine, P.O. Box 40, 00014, Helsinki, Finland
| | - Anna Pelander
- University of Helsinki, Department of Forensic Medicine, P.O. Box 40, 00014, Helsinki, Finland
| | - Kaarlo Simojoki
- A-Clinic Foundation, Maistraatinportti 2, 00240, Helsinki, Finland.,Institute of Clinical Medicine, University of Helsinki, P.O. Box 63, 00014, Helsinki, Finland
| | - Ilkka Ojanperä
- University of Helsinki, Department of Forensic Medicine, P.O. Box 40, 00014, Helsinki, Finland
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82
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Kuuranne T, Saugy M, Baume N. Confounding factors and genetic polymorphism in the evaluation of individual steroid profiling. Br J Sports Med 2015; 48:848-55. [PMID: 24764553 PMCID: PMC4033181 DOI: 10.1136/bjsports-2014-093510] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In the fight against doping, steroid profiling is a powerful tool to detect drug misuse with endogenous anabolic androgenic steroids. To establish sensitive and reliable models, the factors influencing profiling should be recognised. We performed an extensive literature review of the multiple factors that could influence the quantitative levels and ratios of endogenous steroids in urine matrix. For a comprehensive and scientific evaluation of the urinary steroid profile, it is necessary to define the target analytes as well as testosterone metabolism. The two main confounding factors, that is, endogenous and exogenous factors, are detailed to show the complex process of quantifying the steroid profile within WADA-accredited laboratories. Technical aspects are also discussed as they could have a significant impact on the steroid profile, and thus the steroid module of the athlete biological passport (ABP). The different factors impacting the major components of the steroid profile must be understood to ensure scientifically sound interpretation through the Bayesian model of the ABP. Not only should the statistical data be considered but also the experts in the field must be consulted for successful implementation of the steroidal module.
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Affiliation(s)
- Tiia Kuuranne
- Doping Control Laboratory, United Medix Laboratories Ltd., , Helsinki, Finland
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83
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Domínguez-Romero JC, García-Reyes JF, Lara-Ortega FJ, Molina-Díaz A. Screening and confirmation capabilities of liquid chromatography-time-of-flight mass spectrometry for the determination of 200 multiclass sport drugs in urine. Talanta 2015; 134:74-88. [DOI: 10.1016/j.talanta.2014.10.050] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Revised: 10/15/2014] [Accepted: 10/24/2014] [Indexed: 12/25/2022]
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84
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LaPointe J, Musselman B, O'Neill T, Shepard JRE. Detection of "bath salt" synthetic cathinones and metabolites in urine via DART-MS and solid phase microextraction. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2015; 26:159-165. [PMID: 25315459 DOI: 10.1007/s13361-014-1006-9] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2014] [Revised: 09/04/2014] [Accepted: 09/08/2014] [Indexed: 06/04/2023]
Abstract
A rapid and sensitive method, direct analysis in real time mass spectrometry (DART-MS) was applied to the characterization and semiquantitative analysis of synthetic cathinones and their metabolites in urine. DART-MS was capable of detecting three different cathinones and three metabolites down to sub-clinical levels directly without any sample preparations. The process produced a spectrum within seconds because no extraction or derivatization was required for analysis and the high mass accuracy of the instrumentation allowed analysis without the need for lengthy chromatographic separations. The use of solid phase microextration demonstrated a relative increase in the detectability of both drugs and metabolites, improving the detection signal on average more than an order of magnitude over direct detection, while providing cleaner spectra devoid of the major peaks associated with urine that oftentimes dominate such samples.
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85
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Musah RA, Cody RB, Domin MA, Lesiak AD, Dane AJ, Shepard JR. DART–MS in-source collision induced dissociation and high mass accuracy for new psychoactive substance determinations. Forensic Sci Int 2014; 244:42-9. [DOI: 10.1016/j.forsciint.2014.07.028] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2014] [Revised: 07/28/2014] [Accepted: 07/31/2014] [Indexed: 11/28/2022]
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86
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Kempf J, Traber J, Auwärter V, Huppertz LM. ‘Psychotropics caught in a trap’ – Adopting a screening approach to specific needs. Forensic Sci Int 2014; 243:84-9. [DOI: 10.1016/j.forsciint.2014.04.035] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2013] [Revised: 04/08/2014] [Accepted: 04/24/2014] [Indexed: 02/02/2023]
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87
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Yuan C, Chen D, Wang S. Drug confirmation by mass spectrometry: Identification criteria and complicating factors. Clin Chim Acta 2014; 438:119-25. [PMID: 25182671 DOI: 10.1016/j.cca.2014.08.021] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 08/06/2014] [Accepted: 08/19/2014] [Indexed: 11/27/2022]
Abstract
Drug confirmation by mass spectrometry coupled with chromatography is essential to toxicology, doping control, pain management, and workplace drug testing. High confidence in this technology is due to its superior specificity and sensitivity. However, there are challenges associated with drug confirmation, and proper setup and validation of these assays are important in assuring high-quality results. In this article, assay parameters required for drug confirmation are summarized based on recent scientific publications, various established guidelines, and our own practical experience. Factors affecting the result quality and correct results interpretation are critically reviewed. Several emerging technologies and their potential applications are briefly explored.
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Affiliation(s)
- Chao Yuan
- Department of Clinical Pathology, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Derrick Chen
- Department of Clinical Pathology, Cleveland Clinic, Cleveland, OH 44195, USA
| | - Sihe Wang
- Department of Clinical Pathology, Cleveland Clinic, Cleveland, OH 44195, USA.
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88
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Current position of high-resolution MS for drug quantification in clinical & forensic toxicology. Bioanalysis 2014; 6:2275-84. [DOI: 10.4155/bio.14.164] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
This paper reviews high-resolution MS approaches published from January 2011 until March 2014 for the quantification of drugs (of abuse) and/or their metabolites in biosamples using LC-MS with time-of-flight or Orbitrap™ mass analyzers. Corresponding approaches are discussed including sample preparation and mass spectral settings. The advantages and limitations of high-resolution MS for drug quantification, as well as the demand for a certain resolution or a specific mass accuracy are also explored.
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89
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Sundström M, Pelander A, Ojanperä I. Comparison between drug screening by immunoassay and ultra-high performance liquid chromatography/high-resolution time-of-flight mass spectrometry in post-mortem urine. Drug Test Anal 2014; 7:420-7. [DOI: 10.1002/dta.1683] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2014] [Revised: 05/27/2014] [Accepted: 05/27/2014] [Indexed: 11/06/2022]
Affiliation(s)
- Mira Sundström
- Hjelt Institute, Department of Forensic Medicine, Forensic Toxicology Division; University of Helsinki; PO Box 40 00014 Helsinki Finland
| | - Anna Pelander
- Hjelt Institute, Department of Forensic Medicine, Forensic Toxicology Division; University of Helsinki; PO Box 40 00014 Helsinki Finland
| | - Ilkka Ojanperä
- Hjelt Institute, Department of Forensic Medicine, Forensic Toxicology Division; University of Helsinki; PO Box 40 00014 Helsinki Finland
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90
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Chindarkar NS, Wakefield MR, Stone JA, Fitzgerald RL. Liquid chromatography high-resolution TOF analysis: investigation of MSE for broad-spectrum drug screening. Clin Chem 2014; 60:1115-25. [PMID: 24916795 DOI: 10.1373/clinchem.2014.222976] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND High-resolution mass spectrometry (HRMS) has the potential to supplement other drug screening platforms used in toxicology laboratories. HRMS offers high analytical specificity, which can be further enhanced by incorporating a fragment ion for each analyte. The ability to obtain precursor ions and fragment ions using elevated collision energies (MS(E)) can help improve the specificity of HRMS methods. METHODS We developed a broad-spectrum screening method on an ultraperformance liquid chromatography TOF mass spectrometer (UPLC-TOF-MS) using the MS(E) mode. A diverse set of patient samples were subjected to a simple dilute, hydrolyze, and shoot protocol and analyzed in a blind manner. Data were processed with 3 sets of criteria with increasing stringency, and the results were compared with the reference laboratory results. RESULTS A combination of retention time match (±0.2 min), a protonated analyte, and fragment ion mass accuracy of ±5 ppm produced zero false-positive results. Using these criteria, we confirmed 92% (253/275) of true positives. The positive confirmation rate increased to 98% (270/275) when the requirement for a fragment ion was dropped, but also produced 53 false positives. A total of 136 additional positive drug findings not identified by the reference methods were identified with the UPLC-TOF-MS. CONCLUSIONS MS(E) provides a unique way to incorporate fragment ion information without the need of precursor ion selection. A primary limitation of requiring a fragment ion for positive identification was that certain drug classes required high-energy collisions, which formed many fragment ions of low abundance that were not readily detected.
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Affiliation(s)
- Nandkishor S Chindarkar
- Department of Pathology, Center for Advanced Laboratory Medicine, University of California, San Diego Health Systems, San Diego, CA;
| | | | - Judith A Stone
- Department of Pathology, Center for Advanced Laboratory Medicine, University of California, San Diego Health Systems, San Diego, CA
| | - Robert L Fitzgerald
- Department of Pathology, Center for Advanced Laboratory Medicine, University of California, San Diego Health Systems, San Diego, CA
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91
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Geis-Asteggiante L, Nuñez A, Lehotay SJ, Lightfield AR. Structural characterization of product ions by electrospray ionization and quadrupole time-of-flight mass spectrometry to support regulatory analysis of veterinary drug residues in foods. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2014; 28:1061-1081. [PMID: 24711270 DOI: 10.1002/rcm.6871] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2013] [Revised: 02/14/2014] [Accepted: 02/15/2014] [Indexed: 06/03/2023]
Abstract
RATIONALE Monitoring of veterinary drug residues in foods is often conducted using liquid chromatography/tandem mass spectrometry (LC/MS/MS). Results have high economic stakes for producers, but the ions monitored are usually selected due to signal intensities without structural interpretation. In this study, the ion transitions were characterized by high-resolution mass spectrometry. METHODS The 62 veterinary drugs from the LC/MS/MS method consisted of sulfonamides, β-lactams, phenicols, macrolides, tetracyclines, fluoroquinolones, non-steroidal anti-inflammatory drugs (NSAIDs), and corticosteroids. They were individually infused into a quadrupole time-of-flight (Q-TOF) mass spectrometer using electrospray ionization (ESI) operated in positive mode. The MS and collision-induced dissociation (CID) MS/MS spectra for each analyte were obtained for structural elucidation. The Q-TOF instrument was calibrated to obtain a mass accuracy error <5 ppm for the MS and MS/MS spectra. RESULTS The use of high-resolution ESI-Q-TOF-MS for the generation of the MS/MS product ions allowed for the determination of chemical formulae for the analytes, some of which led to new findings. Assigned structures were based on rational interpretation of the most stable possible products with comparison with the scientific literature. In difficult cases, isotopically labeled drugs or hydrogen/deuterium (H/D) exchange experiments were used to help confirm the structures of the product ions. CONCLUSIONS The use of ESI-Q-TOF-MS in this study has allowed structure elucidation of 186 MS/MS product ions previously selected for the LC/MS/MS analysis of 62 veterinary drugs. This serves to reduce the chances of false positives and negatives in the monitoring program, and provides justification and defense in regulatory enforcement actions.
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Affiliation(s)
- Lucía Geis-Asteggiante
- US Department of Agriculture, Agricultural Research Service, Eastern Regional Research Center, 600 East Mermaid Lane, Wyndmoor, PA, 19038, USA; Cátedra de Farmacognosia y Productos Naturales, DQO, Facultad de Química, UdelaR, General Flores 2124, 12800, Montevideo, Uruguay
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92
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Multi-target screening of biological samples using LC–MS/MS: focus on chromatographic innovations. Bioanalysis 2014; 6:1255-73. [DOI: 10.4155/bio.14.80] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Multi-target screening of biological fluids is a key tool in clinical and forensic toxicology. A complete toxicological analysis encompasses the sample preparation, the chromatographic separation and the detection. The present review briefly covers the new trends in sample preparation and detection and mainly focuses on the chromatographic stage, since a lot of technical improvements have been proposed over the last years. Among them, columns packed with sub-2 μm fully porous particles and sub-3 μm core-shell particles allow for significant improvements of resolution and higher throughput. Even if reversed-phase LC remains the most widely used chromatographic mode for toxicological screening, hydrophilic interaction chromatography and supercritical fluid chromatography appear as promising alternatives for attaining orthogonal selectivity, retention of polar compounds, and enhanced MS sensitivity.
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93
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Beck O, Rausberg L, Al-Saffar Y, Villen T, Karlsson L, Hansson T, Helander A. Detectability of new psychoactive substances, 'legal highs', in CEDIA, EMIT, and KIMS immunochemical screening assays for drugs of abuse. Drug Test Anal 2014; 6:492-9. [PMID: 24665024 DOI: 10.1002/dta.1641] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Revised: 02/02/2014] [Accepted: 02/15/2014] [Indexed: 11/05/2022]
Abstract
The increasing number of new psychoactive substances made available for recreational drug use has created a challenge for clinical toxicology and drug testing laboratories. As a consequence, the routine immunoassay drug testing may become less effective due to an increased occurrence of false negative and false positive screening results. This work aimed to extend the knowledge about analytical cross-reactivity of new substances in selected CEDIA, EMIT, and KIMS immunoassays for drugs-of-abuse screening. Urine standards were prepared by spiking blank urine with 45 new substances. Authentic urine samples from intoxication cases identified by liquid chromatography-tandem mass spectrometry (LC-MS/MS) were also studied. Several new psychoactive substances were demonstrated to display cross-reactivity in the immunoassays. CEDIA Amphetamine/Ecstasy and EMIT d.a.u. Amphetamine Class tests showed the highest reactivity towards the new drugs, which was expected since many have amphetamine-like structure and activity. In the samples from authentic cases, five new substances displayed 100% detection rate in the CEDIA Amphetamine/Ecstasy test. In conclusion, cross-reactivity data in routine urine drug screening immunoassays for a number of new psychoactive substances not studied before were reported. In both spiked and authentic urine samples, some new substances showed significant cross-reactivity and are thus detectable in the routine screening methods.
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Affiliation(s)
- Olof Beck
- Department of Laboratory Medicine, section of Clinical Pharmacology, Karolinska University Hospital, Sweden
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94
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Marzinke MA, Breaud A, Parsons TL, Cohen MS, Piwowar-Manning E, Eshleman SH, Clarke W. The development and validation of a method using high-resolution mass spectrometry (HRMS) for the qualitative detection of antiretroviral agents in human blood. Clin Chim Acta 2014; 433:157-68. [PMID: 24661980 DOI: 10.1016/j.cca.2014.03.016] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2013] [Revised: 03/04/2014] [Accepted: 03/14/2014] [Indexed: 01/19/2023]
Abstract
BACKGROUND Antiretroviral drugs are used for the treatment and prevention of HIV infection. Non-adherence to antiretroviral drug regimens can compromise their clinical efficacy and lead to emergence of drug-resistant HIV. Clinical trials evaluating antiretroviral regimens for HIV treatment and prevention can also be compromised by poor adherence and non-disclosed off-study antiretroviral drug use. This report describes the development and validation of a high throughput, qualitative method for the identification of antiretroviral drugs using high-resolution mass spectrometry (HRMS) for the retrospective assessment of off-study antiretroviral drug use and the determination of potential antiretroviral therapy (ART) non-compliance. METHODS Serum standards were prepared that contained 15 antiretroviral drugs: 9 protease inhibitors (PIs), 4 nucleotide/nucleoside reverse transcriptase inhibitors (NRTIs), and 2 non-nucleoside/nucleotide reverse transcriptase inhibitors (NNRTIs). Analytical separation was achieved on a Hypersil Gold PFP (100×3mm) column and the eluent was analyzed using the Thermo Exactive Orbitrap mass spectrometer (Exactive-MS) operated in full scan mode. Limit of identification, signal intensity precision, retention time analysis, selectivity, and carryover studies were conducted. Concordance with liquid chromatographic-tandem mass spectrometric (LC-MS/MS) methods was evaluated using remnant plasma samples from a clinical trial. RESULTS The limit of identification ranged from 5 to 10ng/ml for 14 drugs (9 PIs, 1 NNRTI, 4 NRTIs) and was 150ng/ml for 1 NNRTI. Precision studies with high and low control mixtures revealed signal intensity coefficients of variation of 3.0-27.5%. The Exactive-MS method was selective for the compounds of interest. Overall, concordance ranged from 89.1% to 100% for the screening of antiretroviral drugs in clinical plasma specimens as compared to LC-MS/MS methods. CONCLUSION Using the Exactive-MS, we developed and validated a highly selective, robust method for the multiplexed detection of 15 antiretroviral drugs.
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Affiliation(s)
- Mark A Marzinke
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA; Department of Medicine, the Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Autumn Breaud
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Teresa L Parsons
- Department of Medicine, the Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Myron S Cohen
- Institute for Global Health and Infectious Diseases, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA
| | - Estelle Piwowar-Manning
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Susan H Eshleman
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - William Clarke
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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95
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Deventer K, Pozo O, Verstraete A, Van Eenoo P. Dilute-and-shoot-liquid chromatography-mass spectrometry for urine analysis in doping control and analytical toxicology. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2013.10.012] [Citation(s) in RCA: 76] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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96
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Gomez C, Fabregat A, Pozo ÓJ, Marcos J, Segura J, Ventura R. Analytical strategies based on mass spectrometric techniques for the study of steroid metabolism. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2013.08.010] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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97
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Samways DSK. Applications for mass spectrometry in the study of ion channel structure and function. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2014; 806:237-61. [PMID: 24952185 DOI: 10.1007/978-3-319-06068-2_10] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
Abstract
Ion channels are intrinsic membrane proteins that form gated ion-permeable pores across biological membranes. Depending on the type, ion channels exhibit sensitivities to a diverse range of stimuli including changes in membrane potential, binding by diffusible ligands, changes in temperature and direct mechanical force. The purpose of these proteins is to facilitate the passive diffusion of ions down their respective electrochemical gradients into and out of the cell, and between intracellular compartments. In doing so, ion channels can affect transmembrane potentials and regulate the intracellular homeostasis of the important second messenger, Ca(2+). The ion channels of the plasma membrane are of particular clinical interest due to their regulation of cell excitability and cytosolic Ca(2+) levels, and the fact that they are most amenable to manipulation by exogenously applied drugs and toxins. A critical step in improving the pharmacopeia of chemicals available that influence the activity of ion channels is understanding how their three-dimensional structure imparts function. Here, progress has been slow relative to that for soluble protein structures in large part due to the limitations of applying conventional structure determination methods, such as X-ray crystallography, nuclear magnetic resonance imaging, and mass spectrometry, to membrane proteins. Although still an underutilized technique in the assessment of membrane protein structure, recent advances have pushed mass spectrometry to the fore as an important complementary approach to studying the structure and function of ion channels. In addition to revealing the subtle conformational changes in ion channel structure that accompany gating and permeation, mass spectrometry is already being used effectively for identifying tissue-specific posttranslational modifications and mRNA splice variants. Furthermore, the use of mass spectrometry for high-throughput proteomics analysis, which has proven so successful for soluble proteins, is already providing valuable insight into the functional interactions of ion channels within the context of the macromolecular-signaling complexes that they inhabit in vivo. In this chapter, the potential for mass spectrometry as a complementary approach to the study of ion channel structure and function will be reviewed with examples of its application.
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Affiliation(s)
- Damien S K Samways
- Department of Biology, Clarkson University, 8 Clarkson Avenue, Potsdam, NY, 13699, USA,
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98
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A generic screening methodology for horse doping control by LC–TOF-MS, GC–HRMS and GC–MS. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 941:69-80. [DOI: 10.1016/j.jchromb.2013.10.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2013] [Revised: 09/12/2013] [Accepted: 10/08/2013] [Indexed: 11/19/2022]
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99
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Current status and bioanalytical challenges in the detection of unknown anabolic androgenic steroids in doping control analysis. Bioanalysis 2013; 5:2661-77. [DOI: 10.4155/bio.13.242] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
Androgenic anabolic steroids (AAS) are prohibited in sports due to their anabolic effects. Doping control laboratories usually face the screening of AAS misuse by target methods based on MS detection. Although these methods allow for the sensitive and specific detection of targeted compounds and metabolites, the rest remain undetectable. This fact opens a door for cheaters, since different AAS can be synthesized in order to evade doping control tests. This situation was evidenced in 2003 with the discovery of the designer steroid tetrahydrogestrinone. One decade after this discovery, the detection of unknown AAS still remains one of the main analytical challenges in the doping control field. In this manuscript, the current situation in the detection of unknown AAS is reviewed. Although important steps have been made in order to minimize this analytical problem and different analytical strategies have been proposed, there are still some drawbacks related to each approach.
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100
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Lesiak AD, Adams KJ, Domin MA, Henck C, Shepard JRE. DART-MS for rapid, preliminary screening of urine for DMAA. Drug Test Anal 2013; 6:788-96. [DOI: 10.1002/dta.1540] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Revised: 07/24/2013] [Accepted: 08/18/2013] [Indexed: 12/19/2022]
Affiliation(s)
- Ashton D. Lesiak
- Department of Chemistry; University at Albany, State University of New York (SUNY); 1400 Washington Ave Albany NY 12222 USA
| | - Kendra J. Adams
- Department of Chemistry; University at Albany, State University of New York (SUNY); 1400 Washington Ave Albany NY 12222 USA
| | - Marek A. Domin
- Mass Spectrometry Center, Merkert Chemistry Center; Boston College; 2609 Beacon Street Chestnut Hill MA 02467-3808 USA
| | - Colin Henck
- Department of Chemistry; University at Albany, State University of New York (SUNY); 1400 Washington Ave Albany NY 12222 USA
| | - Jason R. E. Shepard
- Department of Chemistry; University at Albany, State University of New York (SUNY); 1400 Washington Ave Albany NY 12222 USA
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