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Functional Nanomaterials Based Opto-Electrochemical Sensors for the Detection of Gonadal Steroid Hormones. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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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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Anh NH, Long NP, Kim SJ, Min JE, Yoon SJ, Kim HM, Yang E, Hwang ES, Park JH, Hong SS, Kwon SW. Steroidomics for the Prevention, Assessment, and Management of Cancers: A Systematic Review and Functional Analysis. Metabolites 2019; 9:E199. [PMID: 31546652 PMCID: PMC6835899 DOI: 10.3390/metabo9100199] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 09/09/2019] [Accepted: 09/17/2019] [Indexed: 02/07/2023] Open
Abstract
Steroidomics, an analytical technique for steroid biomarker mining, has received much attention in recent years. This systematic review and functional analysis, following the PRISMA statement, aims to provide a comprehensive review and an appraisal of the developments and fundamental issues in steroid high-throughput analysis, with a focus on cancer research. We also discuss potential pitfalls and proposed recommendations for steroidomics-based clinical research. Forty-five studies met our inclusion criteria, with a focus on 12 types of cancer. Most studies focused on cancer risk prediction, followed by diagnosis, prognosis, and therapy monitoring. Prostate cancer was the most frequently studied cancer. Estradiol, dehydroepiandrosterone, and cortisol were mostly reported and altered in at least four types of cancer. Estrogen and estrogen metabolites were highly reported to associate with women-related cancers. Pathway enrichment analysis revealed that steroidogenesis; androgen and estrogen metabolism; and androstenedione metabolism were significantly altered in cancers. Our findings indicated that estradiol, dehydroepiandrosterone, cortisol, and estrogen metabolites, among others, could be considered oncosteroids. Despite noble achievements, significant shortcomings among the investigated studies were small sample sizes, cross-sectional designs, potential confounding factors, and problematic statistical approaches. More efforts are required to establish standardized procedures regarding study design, analytical procedures, and statistical inference.
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Affiliation(s)
- Nguyen Hoang Anh
- College of Pharmacy, Seoul National University, Seoul 08826, Korea.
| | | | - Sun Jo Kim
- College of Pharmacy, Seoul National University, Seoul 08826, Korea.
| | - Jung Eun Min
- College of Pharmacy, Seoul National University, Seoul 08826, Korea.
| | - Sang Jun Yoon
- College of Pharmacy, Seoul National University, Seoul 08826, Korea.
| | - Hyung Min Kim
- College of Pharmacy, Seoul National University, Seoul 08826, Korea.
| | - Eugine Yang
- College of Pharmacy, Ewha Womans University, Seoul 03760, Korea.
| | - Eun Sook Hwang
- College of Pharmacy, Ewha Womans University, Seoul 03760, Korea.
| | - Jeong Hill Park
- College of Pharmacy, Seoul National University, Seoul 08826, Korea.
| | - Soon-Sun Hong
- Department of Biomedical Sciences, College of Medicine, Inha University, Incheon 22212, Korea.
| | - Sung Won Kwon
- College of Pharmacy, Seoul National University, Seoul 08826, Korea.
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Kotłowska A, Szefer P. Recent Advances and Challenges in Steroid Metabolomics for Biomarker Discovery. Curr Med Chem 2019; 26:29-45. [PMID: 29141530 DOI: 10.2174/0929867324666171113120810] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 03/01/2017] [Accepted: 03/20/2017] [Indexed: 12/21/2022]
Abstract
BACKGROUND Steroid hormones belong to a group of low-molecular weight compounds which are responsible for maintenance of various body functions, thus, their accurate assessment is crucial for evaluation of biosynthetic defects. The development of reliable methods allowing disease diagnosis is essential to improve early detection of various disorders connected with altered steroidogenesis. Currently, the field of metabolomics offers several improvements in terms of sensitivity and specificity of the diagnostic methods when opposed to classical diagnostic approaches. The combination of hyphenated techniques and pattern recognition methods allows to carry out a comprehensive assessment of the slightest alterations in steroid metabolic pathways and can be applied as a tool for biomarker discovery. METHODS We have performed an extensive literature search applying various bibliographic databases for peer-reviewed articles concentrating on the applications of hyphenated techniques and pattern recognition methods incorporated into the steroid metabolomic approach for biomarker discovery. RESULTS The review discusses strengths, challenges and recent developments in steroidbased metabolomics. We present methods of sample collection and preparation, methods of separation and detection of steroid hormones in biological material, data analysis, and interpretation as well as examples of applications of steroid metabolomics for biomarker discovery (cancer, mental and central nervous system disorders, endocrine diseases, monitoring of drug therapy and doping control). CONCLUSION Information presented in this review will be valuable to anyone interested in the application of metabolomics for biomarker discovery with a special emphasis on disorders of steroid hormone synthesis and metabolism.
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Affiliation(s)
- Alicja Kotłowska
- Department of Food Sciences, Faculty of Pharmacy, Medical University of Gdansk, Al. Gen. J. Hallera 107, 80-416 Gdansk, Poland
| | - Piotr Szefer
- Department of Food Sciences, Faculty of Pharmacy, Medical University of Gdansk, Al. Gen. J. Hallera 107, 80-416 Gdansk, Poland
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Konieczna L, Belka M, Okońska M, Pyszka M, Bączek T. New 3D-printed sorbent for extraction of steroids from human plasma preceding LC-MS analysis. J Chromatogr A 2018. [PMID: 29523348 DOI: 10.1016/j.chroma.2018.02.040] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In recent years, there has been an increasing worldwide interest in the use of alternative sample preparation methods that are proceeded by separation techniques. Fused deposition modeling (FDM) is a 3D printing technique that is based the consecutive layering of softened/melted thermoplastic materials. In this study, a group of natural steroids and sexual hormones - namely, aldosterone, cortisol, β-estradiol, testosterone, dihydrotestosterone, and synthetic methyltestosterone and betamethasone - were separated and determined using an optimized high-performance liquid chromatography coupled to mass spectrometry (LC-MS) method in positive ionization mode. 3D-printed sorbents were selected as the pre-concentration technique because they are generally low cost, fast, and simple to make and automate. Furthermore, the use of 3D-printed sorbents helps to minimize potential errors due to their repeatability and reproducibility, and their ability to eliminate carry over by using one printed sorbent for a single extraction of steroids from biological matrices. The extraction procedure was optimized and the parameters influencing 3D-printed Layfomm 60® based sorbent and LC-MS were studied, including the type of extraction solvent used, sorption and desorption times, temperature, and the salting-out effect. To demonstrate this method's applicability for biological sample analysis, the SPME-LC-MS method was validated for its ability to simultaneously quantify endogenous steroids. This evaluation confirmed good linearity and an R2 that was between 0.9970 and 0.9990. The recovery rates for human plasma samples were 86.34-93.6% for the studied steroids with intra- and inter-day RSDs of 1.44-7.42% and 1.44-9.46%, respectively. To our knowledge, this study is the first time that 3D-printed sorbents have been used to extract trace amounts of endogenous low-molecular-weight compounds, such as steroids, from biological samples, such as plasma.
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Affiliation(s)
- Lucyna Konieczna
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, al. gen. J. Hallera 107, 80-416 Gdańsk, Poland
| | - Mariusz Belka
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, al. gen. J. Hallera 107, 80-416 Gdańsk, Poland
| | - Magdalena Okońska
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, al. gen. J. Hallera 107, 80-416 Gdańsk, Poland
| | - Magdalena Pyszka
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, al. gen. J. Hallera 107, 80-416 Gdańsk, Poland
| | - Tomasz Bączek
- Department of Pharmaceutical Chemistry, Medical University of Gdańsk, al. gen. J. Hallera 107, 80-416 Gdańsk, Poland.
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Stephenson DJ, Hoeferlin LA, Chalfant CE. Lipidomics in translational research and the clinical significance of lipid-based biomarkers. Transl Res 2017; 189:13-29. [PMID: 28668521 PMCID: PMC5659874 DOI: 10.1016/j.trsl.2017.06.006] [Citation(s) in RCA: 77] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Accepted: 06/08/2017] [Indexed: 02/08/2023]
Abstract
Lipidomics is a rapidly developing field of study that focuses on the identification and quantitation of various lipid species in the lipidome. Lipidomics has now emerged in the forefront of scientific research due to the importance of lipids in metabolism, cancer, and disease. Using both targeted and untargeted mass spectrometry as a tool for analysis, progress in the field has rapidly progressed in the last decade. Having the ability to assess these small molecules in vivo has led to better understanding of several lipid-driven mechanisms and the identification of lipid-based biomarkers in neurodegenerative disease, cancer, sepsis, wound healing, and pre-eclampsia. Biomarker identification and mechanistic understanding of specific lipid pathways linked to a disease's pathologies can form the foundation in the development of novel therapeutics in hopes of curing human disease.
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Affiliation(s)
- Daniel J Stephenson
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University (VCU), Richmond, Va
| | - L Alexis Hoeferlin
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University (VCU), Richmond, Va
| | - Charles E Chalfant
- Department of Biochemistry and Molecular Biology, Virginia Commonwealth University (VCU), Richmond, Va; Research Service, Hunter Holmes McGuire Veterans Administration Medical Center, Richmond, Va; VCU Massey Cancer Center, Cancer Cell Signaling Program, Virginia Commonwealth University, Richmond, Va; VCU Institute of Molecular Medicine, Richmond, Va; VCU Johnson Center for Critical Care and Pulmonary Research, Richmond, Va.
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Palermo A, Botrè F, de la Torre X, Zamboni N. Non-targeted LC-MS based metabolomics analysis of the urinary steroidal profile. Anal Chim Acta 2017; 964:112-122. [PMID: 28351627 DOI: 10.1016/j.aca.2017.01.055] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Revised: 01/23/2017] [Accepted: 01/24/2017] [Indexed: 01/28/2023]
Abstract
The urinary steroidal fraction has been extensively explored as non-invasive alternative to monitor pathological conditions as well as to unveil the illicit intake of pseudo-endogenous anabolic steroids in sport. However, the majority of previous approaches involved the a priori selection of potentially relevant target analytes. Here we describe the non-targeted analysis of the urinary steroidal profiles. The workflow includes minimal sample pretreatment and normalization according to the specific gravity of urine, a 20 min reverse phase ultra-performance liquid chromatographic separation hyphenated to electrospray time-of-flight mass spectrometry. As initial validation, we analyzed a set of quality control urines spiked with glucurono- and sulfo-conjugated steroids at physiological ranges. We then applied the method for the analysis of samples collected after single transdermal administration of testosterone in hypogonadal men. The method allowed profiling of approximately three thousand metabolic features, including steroids of clinical and forensic relevance. It successfully identified metabolic pathways mostly responsible for groups clustering even in the context of high inter-individual variability and allowed the detection of currently unknown metabolic features correlating with testosterone administration. These outcomes set the stage for future studies aimed at implementing currently monitored urinary steroidal markers both in clinical and forensic analysis.
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Affiliation(s)
- Amelia Palermo
- Institute of Molecular Systems Biology, ETH Zurich, Switzerland; Department of Chemistry and Pharmaceutical Technologies, Sapienza University of Rome, Italy; Laboratorio Antidoping, Federazione Medico Sportiva Italiana, Italy
| | - Francesco Botrè
- Laboratorio Antidoping, Federazione Medico Sportiva Italiana, Italy; Department of Experimental Medicine, Sapienza University of Rome, Italy
| | | | - Nicola Zamboni
- Institute of Molecular Systems Biology, ETH Zurich, Switzerland.
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Qian X, Zhan Q, Lv L, Zhang H, Hong Z, Li Y, Xu H, Chai Y, Zhao L, Zhang G. Steroid hormone profiles plus α-fetoprotein for diagnosing primary liver cancer by liquid chromatography tandem mass spectrometry. Clin Chim Acta 2016; 457:92-8. [PMID: 27060391 DOI: 10.1016/j.cca.2016.03.022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2015] [Revised: 03/28/2016] [Accepted: 03/31/2016] [Indexed: 11/27/2022]
Abstract
BACKGROUND Primary liver cancer (PLC) is one of the most common malignant tumors world-wide but its pathogenesis is unclear. We suggest that steroid hormones may offer diagnostic information for PLC. METHODS Using liquid chromatography (UPLC) and tandem mass spectrometry (MS/MS), we quantified 7 endogenous steroids in 66 PLC human serum samples, 59 liver cirrhosis (LC) samples, and 65 healthy volunteers (HV). Data were assessed chemometrically and with Mann-Whitney U tests and partial least squares discriminant analysis (PLS-DA). RESULTS For PLC patients, androgens were low and estrogen was high. PLS-DA analysis discriminated between healthy subjects and cancer patients using (estrone+estradiol)/testosterone ratios. Moreover, cirrhosis patients were also distinguished with receiver operating characteristic curves indicating the specificity and sensitivity of our current approach. CONCLUSIONS Steroid hormone profiling by UPLC-MS/MS may be promising for early diagnosis of PLC but investigations with more patients and steroids are required to confirm the utility of these biomarkers for clinical applications.
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Affiliation(s)
- Xian Qian
- Department of Pharmacy, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, China
| | - Qi Zhan
- Department of Pharmacy, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, China
| | - Lei Lv
- Department of Pharmacy, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, China
| | - Hai Zhang
- Department of Pharmacy, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, China
| | - Zhanying Hong
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Yunqing Li
- Department of Pharmacy, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, China
| | - Hao Xu
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, MI 48109-1065, USA
| | - Yifeng Chai
- Department of Pharmaceutical Analysis, School of Pharmacy, Second Military Medical University, Shanghai 200433, China
| | - Liang Zhao
- Department of Pharmacy, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, China
| | - Guoqing Zhang
- Department of Pharmacy, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University, Shanghai 200438, China.
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Jeanneret F, Tonoli D, Rossier MF, Saugy M, Boccard J, Rudaz S. Evaluation of steroidomics by liquid chromatography hyphenated to mass spectrometry as a powerful analytical strategy for measuring human steroid perturbations. J Chromatogr A 2015. [PMID: 26195035 DOI: 10.1016/j.chroma.2015.07.008] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
This review presents the evolution of steroid analytical techniques, including gas chromatography coupled to mass spectrometry (GC-MS), immunoassay (IA) and targeted liquid chromatography coupled to mass spectrometry (LC-MS), and it evaluates the potential of extended steroid profiles by a metabolomics-based approach, namely steroidomics. Steroids regulate essential biological functions including growth and reproduction, and perturbations of the steroid homeostasis can generate serious physiological issues; therefore, specific and sensitive methods have been developed to measure steroid concentrations. GC-MS measuring several steroids simultaneously was considered the first historical standard method for analysis. Steroids were then quantified by immunoassay, allowing a higher throughput; however, major drawbacks included the measurement of a single compound instead of a panel and cross-reactivity reactions. Targeted LC-MS methods with selected reaction monitoring (SRM) were then introduced for quantifying a small steroid subset without the problems of cross-reactivity. The next step was the integration of metabolomic approaches in the context of steroid analyses. As metabolomics tends to identify and quantify all the metabolites (i.e., the metabolome) in a specific system, appropriate strategies were proposed for discovering new biomarkers. Steroidomics, defined as the untargeted analysis of the steroid content in a sample, was implemented in several fields, including doping analysis, clinical studies, in vivo or in vitro toxicology assays, and more. This review discusses the current analytical methods for assessing steroid changes and compares them to steroidomics. Steroids, their pathways, their implications in diseases and the biological matrices in which they are analysed will first be described. Then, the different analytical strategies will be presented with a focus on their ability to obtain relevant information on the steroid pattern. The future technical requirements for improving steroid analysis will also be presented.
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Affiliation(s)
- Fabienne Jeanneret
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, 1211 Geneva 4, Switzerland; Human Protein Sciences Department, University of Geneva, 1211 Geneva 4, Switzerland; Swiss Centre for Applied Human Toxicology, Geneva, Switzerland
| | - David Tonoli
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, 1211 Geneva 4, Switzerland; Human Protein Sciences Department, University of Geneva, 1211 Geneva 4, Switzerland; Swiss Centre for Applied Human Toxicology, Geneva, Switzerland
| | - Michel F Rossier
- Swiss Centre for Applied Human Toxicology, Geneva, Switzerland; Institut Central (ICHV), Hôpital du Valais, Sion, Switzerland
| | - Martial Saugy
- Swiss Laboratory for Doping Analyses, University Center of Legal Medicine, Epalinges, Switzerland
| | - Julien Boccard
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, 1211 Geneva 4, Switzerland
| | - Serge Rudaz
- School of Pharmaceutical Sciences, University of Geneva, University of Lausanne, 1211 Geneva 4, Switzerland; Swiss Centre for Applied Human Toxicology, Geneva, Switzerland.
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Kotłowska A. Application of Chemometric Techniques in Search of Clinically Applicable Biomarkers of Disease. Drug Dev Res 2014; 75:283-90. [DOI: 10.1002/ddr.21213] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Alicja Kotłowska
- Department of Food Sciences; Faculty of Pharmacy; Medical University of Gdańsk; Gdańsk 80-416 Poland
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11
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LC–MS and chemometrics for steroid biomarker profiles in view of the future diagnostics of diseases? Bioanalysis 2013; 5:1347-51. [DOI: 10.4155/bio.13.63] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Gaikwad NW. Ultra performance liquid chromatography-tandem mass spectrometry method for profiling of steroid metabolome in human tissue. Anal Chem 2013; 85:4951-60. [PMID: 23597399 DOI: 10.1021/ac400016e] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
In humans, steroids play a broad and vital role in regulation of gene expression, secondary sexual characteristics, maturation, reproduction, cardiovascular health, neurological functions, etc., but imbalance in steroid metabolism is also linked to development and progression of many diseases, such as cancer, neurodegenerative diseases, and cardiovascular diseases. Hence, measurement of steroids in biological samples is essential to monitor human health. Currently, there is radioimmunoassay, gas chromatography-mass spectrometry (GC/MS), and liquid chromatography-mass spectrometry (LC-MS) methods developed for steroid measurements in biological samples. However, these methods require elaborate sample preparation procedures and have concerns(s) related to reproducibility, dynamic range, time, costs, and most importantly the total coverage of steroids. Also currently, there is no method available for comprehensive steroid profiling in a single LC-MS run that includes androgens, corticosteroids, progestogens, estrogens, estrogen metabolites, estrogen conjugates, and estrogen-DNA adducts as well as exogenous steroid derivatives. Here, I present a global steroid metabolic profiling method based on liquid-liquid extraction (LLE) followed by ultra performance liquid chromatography (UPLC)-tandem mass spectrometry (MS/MS) for simultaneous measurement of over 100 indigenous as well as exogenous steroids in about 12 min, without derivatization. The method was successfully applied to determine steroid hormone levels in the breast tissue of healthy women. Overall presence of all major classes of steroids as well as estrogen derivatives was detected in breast tissue.
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Affiliation(s)
- Nilesh W Gaikwad
- Departments of Nutrition and Environmental Toxicology, University of California, Davis, California 95616, United States.
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Abdel-Khalik J, Björklund E, Hansen M. Simultaneous determination of endogenous steroid hormones in human and animal plasma and serum by liquid or gas chromatography coupled to tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2013; 928:58-77. [PMID: 23598050 DOI: 10.1016/j.jchromb.2013.03.013] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2012] [Revised: 03/05/2013] [Accepted: 03/13/2013] [Indexed: 01/20/2023]
Abstract
Analytical methodologies based on liquid or gas chromatography coupled to tandem mass spectrometry for the simultaneous determination of two or more endogenous steroid hormones in human and animal plasma and serum has received increased attention the last few years. Especially in the clinical setting steroid profiling is of major importance in disease diagnostics. This paper discusses recent findings in such multi-steroid hormone procedures published from 2001 to 2012. The aim was to elucidate possible relationships between chosen analytical technique and the obtained analyte sensitivity for endogenous steroid hormones. By evaluating the success, at which the currently applied techniques have been utilized, more general knowledge on the field is provided. Furthermore the evaluation provides directions in which future studies may be interesting to conduct.
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Affiliation(s)
- Jonas Abdel-Khalik
- Toxicology Laboratory, Analytical Biosciences, Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark.
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