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Lin K, Cabral P, Ekpenyong O, Bader SE, Galvao J, Kim Y, Lu SX, Tam YT, Bruder M, Rearden P, Shankaran H, Beaumont M. A Surrogate Matrix-Based Approach Toward Multiplexed Quantitation of an sGC Stimulator and cGMP in Ocular Tissue and Plasma. Toxicol Pathol 2020; 49:544-554. [PMID: 32851936 DOI: 10.1177/0192623320948836] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A liquid chromatography-tandem mass spectrometry assay was developed and qualified for the multiplexed quantitation of a small molecule stimulator of soluble guanylate cyclase (sGC) and its target engagement biomarker, 3',5'-cyclic guanosine monophosphate (cGMP), in ocular tissues and plasma from a single surrogate matrix calibration curve. A surrogate matrix approach was used in this assay due to the limited quantities of blank ocular matrices in a discovery research setting. After optimization, the assay showed high accuracy, precision, and recovery as well as parallelism between the surrogate matrix and the biological matrices (rabbit plasma, vitreous, and retina-choroid). This assay provided pharmacokinetic and target engagement data after intravitreal administration of the sGC stimulator. The nitric oxide-sGC-cGMP pathway is a potential target to address glaucoma. Increasing sGC-mediated production of cGMP could improve aqueous humor outflow and ocular blood flow. The sGC stimulator showed dose-dependent exposure in rabbit vitreous, retina-choroid, and plasma. The cGMP exhibited a delayed yet sustained increase in vitreous humor but not retina-choroid. Multiplexed measurement of both pharmacokinetic and target engagement analytes reduced animal usage and provided improved context for interpreting PK and PD relationships.
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Affiliation(s)
- Kenneth Lin
- 2793Merck & Co., Inc, South San Francisco, CA, USA
| | - Pablo Cabral
- 2793Merck & Co., Inc, South San Francisco, CA, USA
| | | | | | - Joana Galvao
- 2793Merck & Co., Inc, South San Francisco, CA, USA
| | | | - Sherry X Lu
- 2793Merck & Co., Inc, South San Francisco, CA, USA
| | - Yu Tong Tam
- 2793Merck & Co., Inc, South San Francisco, CA, USA
| | - Marc Bruder
- 2793Merck & Co., Inc, South San Francisco, CA, USA
| | - Paul Rearden
- 2793Merck & Co., Inc, South San Francisco, CA, USA
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Voegel CD, Baumgartner MR, Kraemer T, Wüst S, Binz TM. Simultaneous quantification of steroid hormones and endocannabinoids (ECs) in human hair using an automated supported liquid extraction (SLE) and LC-MS/MS - Insights into EC baseline values and correlation to steroid concentrations. Talanta 2020; 222:121499. [PMID: 33167212 DOI: 10.1016/j.talanta.2020.121499] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/31/2020] [Accepted: 08/01/2020] [Indexed: 01/08/2023]
Abstract
Endogenous steroid hormones and endocannabinoids (ECs) are important regulators in the stress response of the human body. For the measurement of chronic stress, hair analysis has been established as method of choice for long-term and retrospective determination of endogenous stress markers. A sensitive liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the quantification of five steroid hormones (cortisone, cortisol, androstenedione, testosterone, progesterone) and four endocannabinoids (anandamide, palmitoylethanolamide, 2-arachidonylglycerol, oleoylethanolamide) in hair was developed and validated. The hair samples were extracted with methanol and cleaned up with a fully automated supported liquid extraction (SLE) before analysis. Special attention was paid to the difficulties accompanying the quantification of endogenous analytes in hair. Five different strategies for endogenous compound quantification in hair (surrogate analyte, standard addition, background correction, stripped matrix and solvent calibration) were tested and compared. As a result, the approach of the surrogate analyte was used for the quantification of steroid hormones whereas background correction was used for endocannabinoids. The measurement of 58 samples from healthy young adults allowed insights into endocannabinoid ranges in hair and the correlation to steroid hormones. No significant differences in steroid and EC concentration levels of male and female in hair were found, except for testosterone (p < 0.001) and androstenedione (p < 0.0001). Cortisol to cortisone and testosterone to androstenedione concentrations were significantly and positively correlated. There were significant intercorrelations between endocannabinoids.
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Affiliation(s)
- Clarissa Daniela Voegel
- Center for Forensic Hair Analytics, Zurich Institute of Forensic Medicine, University of Zurich, Zurich, Switzerland
| | - Markus R Baumgartner
- Center for Forensic Hair Analytics, Zurich Institute of Forensic Medicine, University of Zurich, Zurich, Switzerland
| | - Thomas Kraemer
- Department of Forensic Pharmacology and Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, Zurich, Switzerland
| | - Stefan Wüst
- Institute of Psychology, University of Regensburg, Regensburg, Germany
| | - Tina Maria Binz
- Center for Forensic Hair Analytics, Zurich Institute of Forensic Medicine, University of Zurich, Zurich, Switzerland.
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Yang Y, Zhang F, Gao S, Wang Z, Li M, Wei H, Zhong R, Chen W. Simultaneous Determination of 34 Amino Acids in Tumor Tissues from Colorectal Cancer Patients Based on the Targeted UHPLC-MS/MS Method. JOURNAL OF ANALYTICAL METHODS IN CHEMISTRY 2020; 2020:4641709. [PMID: 32802550 PMCID: PMC7416278 DOI: 10.1155/2020/4641709] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Revised: 04/22/2020] [Accepted: 05/01/2020] [Indexed: 06/11/2023]
Abstract
A targeted ultrahigh-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method was established and validated for the simultaneous determination of 34 amino acids in tissue samples from colorectal cancer (CRC) patients. The chromatographic separation was achieved on an Agilent ZORBAX SB-C18 column (3.0 × 150 mm, 5 μm) with a binary gradient elution system (A, 0.02% heptafluorobutyric acid and 0.2% formic acid in water, v/v; B, methanol). The run time was 10 min. The multiple reaction monitoring mode was chosen with an electrospray ionization source operating in the positive ionization mode for data acquisition. The linear correlation coefficients were >0.99 for all the analytes in their corresponding calibration ranges. The sample was pretreated based on tissue homogenate and protein precipitation with a 100 mg aliquot sample. The average recovery and matrix effect for 34 amino acids and 3 internal standards were 39.00%∼146.95% and 49.45%∼173.63%, respectively. The intra- and interday accuracy for all the analytes ranged from -13.52% to 14.21% (RSD ≤8.57%) and from -14.52% to 12.59% (RSD ≤10.31%), respectively. Deviations of stability under different conditions were within ±15% for all the analytes. This method was applied to simultaneous quantification of 34 amino acids in tissue samples from 94 CRC patients.
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Affiliation(s)
- Yang Yang
- Department of Pharmacy, Changzheng Hospital, The Second Military Medical University of CPLA, Shanghai 200003, China
- Department of Pharmacy, The 71st Group Army Hospital of CPLA Army, The Affiliated Huaihai Hospital of Xuzhou Medical University, Xuzhou 221004, China
- Department of Laboratory Diagnostics, Changzheng Hospital, The Second Military Medical University of CPLA, Shanghai 200003, China
| | - Feng Zhang
- Department of Pharmacy, Changzheng Hospital, The Second Military Medical University of CPLA, Shanghai 200003, China
| | - Shouhong Gao
- Department of Pharmacy, Changzheng Hospital, The Second Military Medical University of CPLA, Shanghai 200003, China
| | - Zhipeng Wang
- Department of Pharmacy, Changzheng Hospital, The Second Military Medical University of CPLA, Shanghai 200003, China
| | - Mingming Li
- Department of Pharmacy, Changzheng Hospital, The Second Military Medical University of CPLA, Shanghai 200003, China
| | - Hua Wei
- Department of Pharmacy, Changzheng Hospital, The Second Military Medical University of CPLA, Shanghai 200003, China
| | - Renqian Zhong
- Department of Laboratory Diagnostics, Changzheng Hospital, The Second Military Medical University of CPLA, Shanghai 200003, China
| | - Wansheng Chen
- Department of Pharmacy, Changzheng Hospital, The Second Military Medical University of CPLA, Shanghai 200003, China
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54
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Simultaneous quantification of intracellular concentrations of clinically important metabolites of folate-homocysteine cycle by LC-MS/MS. Anal Biochem 2020; 605:113830. [PMID: 32717185 DOI: 10.1016/j.ab.2020.113830] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 06/03/2020] [Accepted: 06/12/2020] [Indexed: 01/14/2023]
Abstract
Inadequate folate status is detrimental to human development. Deficiency has been implicated in congenital birth defects and cancer, whereas excess has been linked to various negative neurocognitive development outcomes. We developed a method for translational studies involving lymphoblastoid cell models for studying role of folates in vital cell processes. We describe a simple, sensitive, and fast liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the simultaneous quantification of intracellular concentrations of clinically important metabolites of folate-homocysteine cycle; namely, folic acid (FA), 5-methyltetrahydrofolate (5-Me-THF), and homocysteine (Hcy). The method was validated for specificity, linearity, limits of quantification, repeatability, reproducibility, matrix effects, and stability. Method had a wide linear range between 0.341 and 71.053 ng Hcy/mg protein for Hcy, 0.004-0.526 ng FA/mg protein for FA and 0.003-0.526 ng 5-Me-THF/mg protein for 5-Me-THF. The method overcomes challenges associated with the quantification of endogenous molecules, poor stability, and extremely small amounts of the analytes. The method was successfully applied to evaluate the effects of FA and 5-Me-THF treatment of cells in vitro mimicking supplement therapy with various metabolically active species, and showed that 5-Me-THF is more effective than FA in increasing intracellular levels of the biologically active form of folate.
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Ishii H, Obara T, Kusano K, Kijima-Suda I. Quantitative analysis of paracetamol, metacetamol, and orthocetamol in equine urine from racehorses in Japan using liquid chromatography-electrospray ionization-tandem mass spectrometry. Drug Test Anal 2020; 12:1196-1202. [PMID: 32436292 DOI: 10.1002/dta.2860] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 05/08/2020] [Accepted: 05/14/2020] [Indexed: 11/07/2022]
Abstract
Paracetamol is commonly used as an over-the-counter analgesic and antipyretic medication for humans, but not sold as a legitimate therapeutic medication for horses in Japan. However, paracetamol is commonly found in horses together with its two isomers, metacetamol and orthocetamol. We previously reported that paracetamol and orthocetamol were both present in selected feed consumed by Japanese racehorses. For the purpose of the doping control of paracetamol in local Japanese horses, we proposed establishing residue limits (Japanese residue limits, JRLs) to minimize the risk of reporting paracetamol from environmental contributions and to differentiate its presence from active administration. Recently, we proposed a preliminary JRL for paracetamol in equine plasma based on a population study of more than 300 Japanese racehorses. In this paper, we will present our studies on the urinary concentrations of paracetamol, metacetamol, and orthocetamol in postrace samples collected from 403 Japanese racehorses over a 1 year period, detected using liquid chromatography-electrospray ionization-tandem mass spectrometry. Our results revealed that the hydrolyzed urinary concentrations of paracetamol, metacetamol, and orthocetamol were in the range 15.7-2,360 ng/mL (median 363 ng/mL), 8.07-382 ng/mL (84.5 ng/mL), and 919-74,418 ng/mL (13,475 ng/mL), respectively. Based on our statistical model, the preliminary JRL of hydrolyzed paracetamol in equine urine was determined to be 7,400 ng/mL, at a risk factor of 1 in 10,000. Further investigations will be required to demonstrate the applicability and validity of our preliminary plasma and urine JRLs to local Japanese racehorses.
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Affiliation(s)
- Hideaki Ishii
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2, Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan.,Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Taku Obara
- Department of Pharmaceutical Sciences, Tohoku University Hospital, 1-1, Seiryo-machi, Aoba-ku, Sendai, Miyagi, 980-8574, Japan
| | - Kanichi Kusano
- Administration Division Race Horse Hospital Ritto Training Center, Japan Racing Association, 1028, Misono, Ritto, Shiga, 520-3085, Japan
| | - Isao Kijima-Suda
- Drug Analysis Department, Laboratory of Racing Chemistry, 1731-2, Tsuruta-machi, Utsunomiya, Tochigi, 320-0851, Japan
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56
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González-Domínguez R, González-Domínguez Á, Sayago A, Fernández-Recamales Á. Recommendations and Best Practices for Standardizing the Pre-Analytical Processing of Blood and Urine Samples in Metabolomics. Metabolites 2020; 10:metabo10060229. [PMID: 32503183 PMCID: PMC7344701 DOI: 10.3390/metabo10060229] [Citation(s) in RCA: 61] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 05/29/2020] [Accepted: 05/31/2020] [Indexed: 12/11/2022] Open
Abstract
Metabolomics can be significantly influenced by a range of pre-analytical factors, such as sample collection, pre-processing, aliquoting, transport, storage and thawing. This therefore shows the crucial need for standardizing the pre-analytical phase with the aim of minimizing the inter-sample variability driven by these technical issues, as well as for maintaining the metabolic integrity of biological samples to ensure that metabolomic profiles are a direct expression of the in vivo biochemical status. This review article provides an updated literature revision of the most important factors related to sample handling and pre-processing that may affect metabolomics results, particularly focusing on the most commonly investigated biofluids in metabolomics, namely blood plasma/serum and urine. Finally, we also provide some general recommendations and best practices aimed to standardize and accurately report all these pre-analytical aspects in metabolomics research.
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Affiliation(s)
- Raúl González-Domínguez
- AgriFood Laboratory, Faculty of Experimental Sciences, University of Huelva, 21007 Huelva, Spain; (A.S.); (Á.F.-R.)
- International Campus of Excellence CeiA3, University of Huelva, 21007 Huelva, Spain
- Correspondence: ; Tel.: +34-959219975
| | - Álvaro González-Domínguez
- Department of Pediatrics, Hospital Universitario Puerta del Mar, 11009 Cádiz, Spain;
- Institute of Research and Innovation in Biomedical Sciences of the Province of Cádiz (INiBICA), 11009 Cádiz, Spain
| | - Ana Sayago
- AgriFood Laboratory, Faculty of Experimental Sciences, University of Huelva, 21007 Huelva, Spain; (A.S.); (Á.F.-R.)
- International Campus of Excellence CeiA3, University of Huelva, 21007 Huelva, Spain
| | - Ángeles Fernández-Recamales
- AgriFood Laboratory, Faculty of Experimental Sciences, University of Huelva, 21007 Huelva, Spain; (A.S.); (Á.F.-R.)
- International Campus of Excellence CeiA3, University of Huelva, 21007 Huelva, Spain
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57
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Zhang Q, Liu R, Xu H, Yang X, Zhang Y, Wang Q, Gao P, Bi K, Han T, Li Q. Multifunctional isotopic standards based steroidomics strategy: Exploration of cancer screening model. J Chromatogr A 2020; 1614:460723. [DOI: 10.1016/j.chroma.2019.460723] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Revised: 11/05/2019] [Accepted: 11/16/2019] [Indexed: 12/15/2022]
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58
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Zhou GS, Yuan YC, Yin Y, Tang YP, Xu RJ, Liu Y, Chen PD, Yin L, Duan JA. Hydrophilic interaction chromatography combined with ultrasound-assisted ionic liquid dispersive liquid-liquid microextraction for determination of underivatized neurotransmitters in dementia patients' urine samples. Anal Chim Acta 2020; 1107:74-84. [PMID: 32200904 DOI: 10.1016/j.aca.2020.02.027] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 02/08/2020] [Accepted: 02/11/2020] [Indexed: 12/18/2022]
Abstract
A sensitive, rapid, precise and specific analytical method of hydrophilic interaction ultra-performance liquid chromatography coupled with triple-quadrupole linear ion-trap tandem mass spectrometry (HILIC-UHPLC-QTRAP®/MS2) combined with a high-efficiency and easy sample preparation technology of ultrasound-assisted ionic liquid dispersive liquid-liquid microextraction (UA-IL-DLLME) was developed to investigate neurotransmitters (NTs) in mild cognitive impairment, mild dementia and moderate dementia patients' urine samples. Firstly, the UA-IL-DLLME parameters were optimized using Plackett-Burman screening and rotatable central composite design, and the main optimal conditions were obtained: ultrasound power of 307 W, ultrasound time of 4.3 min and agitation time of 4.8 min. Secondly, HILIC-UHPLC-QTRAP®/MS2 method was developed to simultaneously determine 15 underivatized NTs in urine samples. The analysis results of clinical samples showed that some NTs such as γ-aminobutyric acid (GABA), acetylcholine (Ach) and glutamic acid (Glu) presented significant differences in different dementia stages. Finally, multivariate analysis based on the combination of principal component analysis and supervised counter propagation artificial neural network was developed for comprehensive analysis of the obtained clinical data sets. As a result, GABA and Glu were simultaneously presented meaningful contribution for classification of samples, and might be considered as potential differential compounds to the urine samples from cluster patients with different dementia stages. In summary, the presented strategy of preparation, analysis and statistics might be used to investigate NTs in different clinical biological fluids.
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Affiliation(s)
- Gui-Sheng Zhou
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, And Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
| | - Yi-Chu Yuan
- Department of Urology, The Second Affiliated Hospital, Zhejiang University, Hangzhou, 310009, China
| | - You Yin
- Department of Neurology, Changzheng Hospital, Second Military Medical University, Shanghai, 200003, China.
| | - Yu-Ping Tang
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, And Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, 210023, China; Key Laboratory of Shaanxi Administration of Traditional Chinese Medicine for TCM Compatibility, And Shaanxi Key Laboratory of Chinese Medicine Fundamentals and New Drugs Research, Shaanxi University of Chinese Medicine, Xi'an, 712046, China
| | - Ren-Jie Xu
- Department of Pharmacy, Xinhua Hospital, Shanghai Jiao Tong University, Shanghai, 200092, China
| | - Yan Liu
- Department of Pharmacy, Xinhua Hospital, Shanghai Jiao Tong University, Shanghai, 200092, China
| | - Pei-Dong Chen
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, And Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Lian Yin
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, And Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Jin-Ao Duan
- Jiangsu Collaborative Innovation Center of Chinese Medicinal Resources Industrialization, And Jiangsu Key Laboratory for High Technology Research of TCM Formulae, Nanjing University of Chinese Medicine, Nanjing, 210023, China.
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59
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Eser B, Özkan Y, Sepici Dinçel A. Determination of Tryptophan and Kynurenine by LC-MS/MS by Using Amlodipine as an Internal Standard. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2020; 31:379-385. [PMID: 32031396 DOI: 10.1021/jasms.9b00007] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Tryptophan is an essential amino acid that plays an important role in cell metabolism, and kynurenine is its main metabolic pathway. By using ultra-high-performance liquid chromatography coupled to electrospray ionization triple-quadrupole mass spectrometry, tryptophan and kynurenine were determined using amlodipine as an internal standard. The analysis was carried out on an ACE-C18 (4.6 mm × 50 mm, 5 μm) reversed-phase analytical column using the gradient elution mode. For quantitative determination, amlodipine was used as an internal standard. Detection was performed using multiple reaction monitoring in electrospray ionization mode at m/z 205.1 → 117.7 and 187.9 for tryptophan, m/z 209.1 → 146 and 93.9 for kynurenine, and m/z 409.2 → 294.1 for the internal standard. Good linearity of the analyte to internal standard peak area ratios was seen in the concentration range 1.25-4000 ng/mL for tryptophan and 0.5-1600 ng/mL for kynurenine. The method showed excellent linearity with regression coefficients of 0.99 for kynurenine and 0.996 for tryptophan. The limits of quantification were 0.55 ng/mL for tryptophan and 0.47 ng/mL for kynurenine. The % RSD for all analytes ranged from 0.3 to 3.4% for intraday and 0.4 to 8.9% for interday experiments. A simple LC-MS/MS method has been developed and validated for measuring Kyn and Trp by using an affordable and more easily available internal standard, which is amlodipine.
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Affiliation(s)
- Burcu Eser
- Research and Development Center , University of Health Sciences , Ankara 06011 , Turkey
- Department of Medical Biochemistry, Faculty of Medicine , Gazi University , Ankara 06011 , Turkey
| | - Yeşim Özkan
- Department of Biochemistry, Faculty of Pharmacy , Gazi University , Ankara 06011 , Turkey
| | - Aylin Sepici Dinçel
- Department of Medical Biochemistry, Faculty of Medicine , Gazi University , Ankara 06011 , Turkey
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Dubois C, Payen D, Simon S, Junot C, Fenaille F, Morel N, Becher F. Top-Down and Bottom-Up Proteomics of Circulating S100A8/S100A9 in Plasma of Septic Shock Patients. J Proteome Res 2020; 19:914-925. [PMID: 31913637 DOI: 10.1021/acs.jproteome.9b00690] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Well-characterized prognostic biomarkers and reliable quantitative methods are key in sepsis management. Among damage-associated molecular patterns, S100A8/S100A9 complexes are reported to be markers for injured cells and to improve the prediction of death in septic shock patients. In view of the structural diversity observed for the intracellular forms, insight into circulating complexes and proteoforms is required to establish prognostic biomarkers. Here, we developed top-down and bottom-up proteomics to characterize the association of S100A8 and S100A9 in complexes and major circulating proteoforms. An antibody-free method was developed for absolute quantification of S100A8/S100A9 in a cohort of 49 patients to evaluate the prognostic value on the first day after admission for septic shock. The predominant circulating forms identified by top-down proteomics were S100A8, mono-oxidized S100A8, truncated acetylated S100A9, and S-nitrosylated S100A9. S100A8, truncated acetylated S100A9, and mono-oxidized S100A8 discriminated between survivors and nonsurvivors, along with total S100A8/S100A9 measured by the antibody-free bottom-up method. Overall, new insights into circulating S100A8/S100A9 and confirmation of its prognostic value in septic shock are crucial in qualification of this biomarker. Also, the simple antibody-free assay would support the harmonization of S100A8/S100A9 measurements.
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Affiliation(s)
- Christelle Dubois
- Service de Pharmacologie et Immunoanalyse (SPI), CEA, INRA, Université Paris-Saclay , Gif-sur Yvette F-91191 , France
| | - Didier Payen
- Université Paris 7 Cité Sorbonne, UMR INSERM 1160 , 110 Avenue de Verdun , Paris 75010 , France.,Department of Anesthesiology & Critical Care , Hôpital Lariboisière, Assistance Publique-Hôpitaux de Paris (AP-HP) , Paris 75010 , France
| | - Stéphanie Simon
- Service de Pharmacologie et Immunoanalyse (SPI), CEA, INRA, Université Paris-Saclay , Gif-sur Yvette F-91191 , France
| | - Christophe Junot
- Service de Pharmacologie et Immunoanalyse (SPI), CEA, INRA, Université Paris-Saclay , Gif-sur Yvette F-91191 , France
| | - François Fenaille
- Service de Pharmacologie et Immunoanalyse (SPI), CEA, INRA, Université Paris-Saclay , Gif-sur Yvette F-91191 , France
| | - Nathalie Morel
- Service de Pharmacologie et Immunoanalyse (SPI), CEA, INRA, Université Paris-Saclay , Gif-sur Yvette F-91191 , France
| | - François Becher
- Service de Pharmacologie et Immunoanalyse (SPI), CEA, INRA, Université Paris-Saclay , Gif-sur Yvette F-91191 , France
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61
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Godoy AT, Eberlin MN, Simionato AVC. Targeted metabolomics: Liquid chromatography coupled to mass spectrometry method development and validation for the identification and quantitation of modified nucleosides as putative cancer biomarkers. Talanta 2019; 210:120640. [PMID: 31987192 DOI: 10.1016/j.talanta.2019.120640] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 11/26/2019] [Accepted: 12/09/2019] [Indexed: 12/29/2022]
Abstract
A notable change in the body fluids nucleosides of cancer patients has been actively highlighted in searches for new biomarkers to early cancer detection. For this reason, improvements of bioanalytical methods for these compounds focused on a noninvasive sampling trend are of great importance. Therefore, this work aimed firstly to develop efficient methods for nucleoside analysis in urine and serum by liquid chromatography-tandem mass spectrometry (LC-MS/MS), applying different strategies to quantify nine nucleosides, and further identify other untargeted nucleosides. Sample preparation was based on protein precipitation and affinity-solid phase extraction (SPE), whereas quantification was performed using a triple quadrupole (QqQ) mass analyzer operating in the selected reaction monitoring (SRM) mode. Surrogates matrices were proposed as an alternative to standard addition calibration. Specifically, to quantitate creatinine, a simple LC-MS/MS method was validated and used for normalization of urinary metabolites quantitation. To identify the other nucleosides, LC methods using different MS scans modes were evaluated on a quadrupole-time of flight (Q-TOF) or a hybrid triple quadrupole linear ion trap (Q-trap). Validation was performed for nucleosides quantification using the synthetic matrices of urine and serum, and selectivity, linearity, accuracy, reproducibility, matrix effect, LOD's and LOQ's were accessed, providing trustworthy results for bioanalysis purposes. Both LC-Q-Trap/MS and LC-Q-TOF/MS methods showed proper sensitivity for structural characterization on assays with urine and serum samples from healthy volunteers and could also be used in the identification of untargeted nucleosides. The investigated approaches delivered in-depth results and seem promising for future applications on urine and serum samples analyses aiming to validate nucleosides as cancer biomarkers.
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Affiliation(s)
- Adriana Teixeira Godoy
- Department of Analytical Chemistry, Institute of Chemistry, University of Campinas, 13083-970, Campinas, SP, Brazil.
| | - Marcos Nogueira Eberlin
- Department of Analytical Chemistry, Institute of Chemistry, University of Campinas, 13083-970, Campinas, SP, Brazil; Mackenzie Presbyterian University, MackMass Laboratory, Scholl of Engineering, 01302-907, São Paulo, SP, Brazil
| | - Ana Valéria Colnaghi Simionato
- Department of Analytical Chemistry, Institute of Chemistry, University of Campinas, 13083-970, Campinas, SP, Brazil; National Institute of Science and Technology for Bioanalytics, Institute of Chemistry, University of Campinas, 13083-970, Campinas, SP, Brazil.
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62
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Virág D, Király M, Drahos L, Édes AE, Gecse K, Bagdy G, Juhász G, Antal I, Klebovich I, Dalmadi Kiss B, Ludányi K. Development, validation and application of LC-MS/MS method for quantification of amino acids, kynurenine and serotonin in human plasma. J Pharm Biomed Anal 2019; 180:113018. [PMID: 31851908 DOI: 10.1016/j.jpba.2019.113018] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 11/06/2019] [Accepted: 11/27/2019] [Indexed: 01/09/2023]
Abstract
Altered serotonergic neurotransmission is a key factor in several neurologic and psychiatric disorders such as migraine. Human and animal studies suggest that chronically low interictal serotonin levels of plasma and brain may facilitate increased activity of the trigeminovascular pathway, and may contribute to development of repeated migraine attacks. However, brain serotonin synthesis is affected by the concentration of tryptophan, its metabolites and a number of amino acids. In this work a simple and robust LC-MS/MS method for the quantitative determination of valine, leucine, isoleucine, phenylalanine, tyrosine, tryptophan, serotonin and kynurenine in human plasma has been developed and validated. Sample preparation was achieved by protein precipitation, using trifluoroacetic acid. Chromatographic separation was carried out on a Supelco Ascentis® Express C18 column (3.0 mm i.d. × 150 mm, 2.7 μm) equipped with an Agilent Zorbax Eclipse XDB C8 guard-column under isocratic conditions at a flow rate of 0.4 mL/min, over a 6.5 min run time. Mobile phase was 0.2% trifluoroacetic acid - acetonitrile (85:15, v/v). The eight analytes and two internal standards were ionized by positive electrospray ionization and detected in multiple reaction monitoring mode. A "fit-for-purpose" validation approach was adopted using surrogate matrix for the preparation of calibration samples. The calibration curves of all analytes showed excellent linearities with a correlation coefficient (r2) of 0.998 or better. Spiked surrogate matrix samples and pooled human plasma were used as quality control samples. Intra-day and inter-day precisions were less than 11.8% and 14.3%, and accuracies were within the ranges of 87.4-114.3% and 87.7-113.3%, respectively. Stability of the components in standard solutions, surrogate matrix, pooled plasma and processed samples were found to be acceptable under all relevant conditions. No significant carryover effect was observed. The surrogate matrix behaved parallel to human plasma when assessed by standard addition method and diluting the authentic matrix with surrogate matrix. The method was successfully applied for analysis of 800 human plasma samples to support a clinical study.
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Affiliation(s)
- Dávid Virág
- Department of Pharmaceutics, Semmelweis University, Hőgyes Endre utca 7, Budapest H-1092, Hungary
| | - Márton Király
- Department of Pharmaceutics, Semmelweis University, Hőgyes Endre utca 7, Budapest H-1092, Hungary
| | - László Drahos
- MS Proteomics Research Group, Institute of Organic Chemistry, Research Centre for Natural Sciences of the Hungarian Academy of Sciences, Magyar tudósok körútja 2, Budapest H-1117, Hungary
| | - Andrea Edit Édes
- SE-NAP 2 Genetic Brain Imaging Migraine Research Group, Semmelweis University, Nagyvárad tér 4, Budapest H-1089, Hungary; Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Nagyvárad tér 4, Budapest H-1089, Hungary
| | - Kinga Gecse
- SE-NAP 2 Genetic Brain Imaging Migraine Research Group, Semmelweis University, Nagyvárad tér 4, Budapest H-1089, Hungary; Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Nagyvárad tér 4, Budapest H-1089, Hungary
| | - György Bagdy
- Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Nagyvárad tér 4, Budapest H-1089, Hungary; MTA-SE Neuropsychopharmacology and Neurochemistry Research Group, Hungarian Academy of Sciences, Semmelweis University, Nagyvárad tér 4, Budapest H-1089, Hungary
| | - Gabriella Juhász
- SE-NAP 2 Genetic Brain Imaging Migraine Research Group, Semmelweis University, Nagyvárad tér 4, Budapest H-1089, Hungary; Department of Pharmacodynamics, Faculty of Pharmacy, Semmelweis University, Nagyvárad tér 4, Budapest H-1089, Hungary
| | - István Antal
- Department of Pharmaceutics, Semmelweis University, Hőgyes Endre utca 7, Budapest H-1092, Hungary
| | - Imre Klebovich
- Department of Pharmaceutics, Semmelweis University, Hőgyes Endre utca 7, Budapest H-1092, Hungary
| | - Borbála Dalmadi Kiss
- Department of Pharmaceutics, Semmelweis University, Hőgyes Endre utca 7, Budapest H-1092, Hungary
| | - Krisztina Ludányi
- Department of Pharmaceutics, Semmelweis University, Hőgyes Endre utca 7, Budapest H-1092, Hungary.
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Paprotny Ł, Celejewska A, Frajberg M, Wianowska D. Development and validation of GC-MS/MS method useful in diagnosing intestinal dysbiosis. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1130-1131:121822. [PMID: 31669633 DOI: 10.1016/j.jchromb.2019.121822] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2019] [Revised: 09/28/2019] [Accepted: 09/30/2019] [Indexed: 12/26/2022]
Abstract
Dysbiosis is a disorder of the bacterial flora of the human digestive tract. It is usually diagnosed clinically by direct detection of an abnormal pattern of the intestinal microbiota. The intermediate diagnosis based on determining the content of microflora metabolites, considered as chemical markers of this disorder, is still rarely used. This is, among others, due to the variety of properties of compounds recognised as dysbiosis markers and as a consequence, the use of different methods for their analysis. To the best of our knowledge, there is still no analytical procedure that would allow unambiguous determination of all compounds in one procedure. In the present study, we have established a detailed method for the quantitative analysis of hydrocinnamic, citramalic, p-hydroxybenzeneacetic, tartaric, hippuric, 4-hydroxybenzoic, indoxylsulfuric, tricarballylic, 3,4-dihydroxyhydrocinnamic and benzoic acids along with DL-arabitol that employs the direct derivatization of compounds in a small volume of urine sample followed by gas chromatography - tandem mass spectrometry (GC-MS/MS). To show that the optimised method is a useful tool for chemical diagnosis of dysbiosis, it was applied for determination of the dysbiosis markers in the authentic urine samples.
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Affiliation(s)
- Łukasz Paprotny
- Research and Development Centre, ALAB Laboratories, ul. Ceramiczna 1, 20-150 Lublin, Poland
| | - Agnieszka Celejewska
- Research and Development Centre, ALAB Laboratories, ul. Ceramiczna 1, 20-150 Lublin, Poland
| | - Małgorzata Frajberg
- Research and Development Centre, ALAB Laboratories, ul. Ceramiczna 1, 20-150 Lublin, Poland
| | - Dorota Wianowska
- Department of Chromatographic Methods, Faculty of Chemistry, Maria Curie-Skłodowska University, Pl. Maria Curie-Skłodowska 3, 20-031 Lublin, Poland.
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64
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Development and Validation of the Ultra Performance Liquid Chromatography-Tandem Mass Spectrometer Method for Quantification of Methylenecyclopropylglycine in Litchi Fruits Using the Standard Addition Method. FOOD ANAL METHOD 2019. [DOI: 10.1007/s12161-019-01536-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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65
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Characterization of neurotransmitter profiles in Daphnia magna juveniles exposed to environmental concentrations of antidepressants and anxiolytic and antihypertensive drugs using liquid chromatography–tandem mass spectrometry. Anal Bioanal Chem 2019; 411:5867-5876. [DOI: 10.1007/s00216-019-01968-y] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 05/20/2019] [Accepted: 06/07/2019] [Indexed: 12/11/2022]
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66
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An LC-MS/MS Method to Measure S-Methyl-l-Cysteine and S-Methyl-l-Cysteine Sulfoxide in Human Specimens Using Isotope Labelled Internal Standards. Molecules 2019; 24:molecules24132427. [PMID: 31269651 PMCID: PMC6651111 DOI: 10.3390/molecules24132427] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 06/28/2019] [Accepted: 06/29/2019] [Indexed: 01/03/2023] Open
Abstract
This is the first report describing an analytical method for quantitative analysis of two naturally occurring sulphur compounds, S-methyl-l-cysteine (SMC) and S-methyl-l-cysteine sulfoxide (SMCSO), in human body fluids using isotope-labelled internal standards and liquid chromatography-mass spectrometry (LC-MS)/MS techniques. This method was validated according to the guideline of the Royal Society of Chemistry Analytical Methods Committee. It offers significant advantages including simple and fast preparation of human biological samples. The limits of detection of SMC were 0.08 µM for urine and 0.04 µM for plasma. The limits of detection of SMCSO were 0.03 µM for urine and 0.02 µM for plasma. The calibration curves of all matrices showed linearity with correlation coefficients r2 > 0.9987. The intra and inter day precisions in three levels of known concentrations were >10% and >20%, respectively. The quantification accuracy was 98.28 ± 5.66%. The proposed method would be beneficial for the rapid and accurate determination of the SMC and SMCSO in human plasma and urine samples using by isotope labelled internal standards.
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67
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Bronsema KJ, Klont F, Schalk FB, Bischoff R, Kema IP, van de Merbel NC. A quantitative LC-MS/MS method for insulin-like growth factor 1 in human plasma. Clin Chem Lab Med 2019; 56:1905-1912. [PMID: 29715173 DOI: 10.1515/cclm-2017-1042] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Accepted: 04/06/2018] [Indexed: 12/24/2022]
Abstract
BACKGROUND Insulin-like growth factor 1 (IGF1) is a biomarker with various applications in medicine and also in doping control. METHODS A liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed that employs 15N-IGF1 as an internal standard. The method features urea-based IGF1/IGFBP-complex dissociation which is directly followed by tryptic digestion. Following solid-phase extraction (SPE) sample clean-up of the digest, IGF1 is detected by means of two signature peptides that enable quantification of total IGF1 as well as discrimination between IGF1 proteoforms with 'native' and modified or extended N-terminal sequences. RESULTS Our method is capable of measuring plasma IGF1 concentrations over the clinically relevant range of 10-1000 ng/mL and was validated according to regulatory guidelines. Comparison with the IDS-iSYS IGF1 immunoassay revealed good correlation (R2>0.97) and no proportional bias between both assays was observed after normalizing the results against the WHO reference standard for IGF1 (02/254). Evaluation of several commercially available IGF1 preparations showed varying responses which were due to inconsistencies in purity and absolute amount of IGF1 present in these products. CONCLUSIONS Our LC-MS/MS method introduces urea-based dissociation of IGF1/IGFBP-complexes to enable reliable quantification of IGF1 in plasma. Furthermore, the method is able to detect clinically relevant IGF1 levels without an enrichment procedure at the protein-level and thereby minimizes the risk of losing IGF1 proteoforms during sample preparation.
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Affiliation(s)
- Kees J Bronsema
- Bioanalytical Laboratory, PRA Health Sciences, Assen, The Netherlands
| | - Frank Klont
- Department of Analytical Biochemistry, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, The Netherlands
| | - Frank B Schalk
- Bioanalytical Laboratory, PRA Health Sciences, Assen, The Netherlands
| | - Rainer Bischoff
- Department of Analytical Biochemistry, Groningen Research Institute of Pharmacy, University of Groningen, Groningen, The Netherlands
| | - Ido P Kema
- Department of Laboratory Medicine, University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
| | - Nico C van de Merbel
- Bioanalytical Laboratory, PRA Health Sciences, Amerikaweg 18, 9407 TK Assen, The Netherlands.,Department of Analytical Biochemistry, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands, Phone: +31 592 303 431, Fax: +31 592 303 223
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68
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Matrix effect evaluation and validation of the 2,2′-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) radical cation scavenging assay, as well as its application using a tejate, an ancient beverage in Mexico. CHEMICAL PAPERS 2019. [DOI: 10.1007/s11696-019-00829-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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69
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Liu Q, Chi Q, Fan RT, Tian HD, Wang X. Quantitative-Profiling Method of Serum Steroid Hormones by Hydroxylamine-Derivatization HPLC-MS. NATURAL PRODUCTS AND BIOPROSPECTING 2019; 9:201-208. [PMID: 30968349 PMCID: PMC6538747 DOI: 10.1007/s13659-019-0204-3] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Accepted: 04/03/2019] [Indexed: 05/17/2023]
Abstract
A sensitive and rapid high performance liquid chromatography-mass spectrometry (HPLC-MS) method was developed and validated for simultaneous quantification of ten steroid hormones, including estrogens, androgens, progesterones, and corticosteroids four classes of steroids. The following ten steroid hormones were analyzed: progesterone, 21-deoxycortisol, estrone, 4-androstenedione, testosterone, dihydro-testosterone, androstenone, dehydroepiandrosterone, corticosterone and cortisone. Stable deuterated isotopes were used as internal standards for quantification. Sample preparation with and without derivatization were performed after liquid-liquid extraction, and the corresponding results were compared according to sensitivity and selectivity. Hydroxylamine derivatization was found to improve the ionization efficiency of the analytes for electrospray ionization MS analysis. The gradient of mobile phase and experimental parameters for HPLC separation were optimized. The lower limits of quantification were in the range of 0.05-5 ng mL-1 with wide linear range for the ten steroid hormones. The intra-day precision < 11.1% and recovery of 84.5-120% with negligible matrix effect were achieved, where within the acceptance limits of the FDA guideline. Total HPLC-MS analysis time was 6 min. This method enables simultaneous quantification of steroids in human serum. It will be helpful for the serum steroid profiling in order to understand various endocrinology diseases.
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Affiliation(s)
- Qi Liu
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, Hubei, People's Republic of China
| | - Quan Chi
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, Hubei, People's Republic of China
| | - Ru-Ting Fan
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, Hubei, People's Republic of China
| | - Hui-Dong Tian
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, Hubei, People's Republic of China
| | - Xian Wang
- Key Laboratory of Analytical Chemistry of the State Ethnic Affairs Commission, College of Chemistry and Materials Science, South-Central University for Nationalities, Wuhan, 430074, Hubei, People's Republic of China.
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70
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Dhondt L, Croubels S, De Cock P, De Paepe P, De Baere S, Devreese M. Development and validation of an ultra-high performance liquid chromatography-tandem mass spectrometry method for the simultaneous determination of iohexol, p-aminohippuric acid and creatinine in porcine and broiler chicken plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1117:77-85. [PMID: 31004849 DOI: 10.1016/j.jchromb.2019.04.017] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 04/05/2019] [Accepted: 04/06/2019] [Indexed: 01/03/2023]
Abstract
In order to study the renal function, in terms of glomerular filtration and effective renal plasma flow, in broiler chickens and pigs, an ultra-high performance liquid chromatography-tandem mass spectrometry method for the simultaneous determination of iohexol, p-aminohippuric acid (PAH) and exogenously administered creatinine in plasma was developed and validated. Sample preparation consisted of a deproteinization step using methanol for porcine plasma and an Ostro™ Protein Precipitation & Phospholipid Removal Plate was used for broiler chicken plasma. Chromatographic separation was achieved on a Hypersil Gold aQ column using 0.1% formic acid in water and 0.1% formic acid in methanol as mobile phases. The total run time was limited to 10 min. Matrix-matched calibration curves for iohexol and PAH were prepared and good linearity (r ≥ 0.9973; gof ≤ 6.17%) was achieved over the concentration range tested (0.25-90 μg/mL). Limits of quantification were 0.25 μg/mL for iohexol and PAH. Water was used as surrogate matrix for analysis of creatinine in plasma. This surrogate calibration curve showed good linearity over the concentration range tested (0.25-90 μg/mL) (r ≥ 0.9979; gof ≤ 5.66%). For creatinine, the relative lower limit of quantification was 201.03 ± 49.20% and 60.14 ± 7.64% for chicken and porcine plasma, respectively. The results for within-day and between-day precision and accuracy fell within the specified ranges. This straightforward, cost-effective and rapid method, determining iohexol, PAH and creatinine within one single chromatographic run, has been successfully used for the analysis in porcine and broiler chicken plasma samples in order to determine the renal function of these species.
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Affiliation(s)
- Laura Dhondt
- Department of Pharmacology, Toxicology and Biochemistry, Salisburylaan 133, Ghent University, Merelbeke, Belgium.
| | - Siska Croubels
- Department of Pharmacology, Toxicology and Biochemistry, Salisburylaan 133, Ghent University, Merelbeke, Belgium
| | - Pieter De Cock
- Department of Pharmacy, Ghent University Hospital, Corneel Heymanslaan 10, Ghent, Belgium; Heymans Institute of Pharmacology, Ghent University, Corneel Heymanslaan 10, Ghent, Belgium; Department of Paediatric Intensive Care, Ghent University Hospital, Corneel Heymanslaan 10, Ghent, Belgium
| | - Peter De Paepe
- Heymans Institute of Pharmacology, Ghent University, Corneel Heymanslaan 10, Ghent, Belgium
| | - Siegrid De Baere
- Department of Pharmacology, Toxicology and Biochemistry, Salisburylaan 133, Ghent University, Merelbeke, Belgium
| | - Mathias Devreese
- Department of Pharmacology, Toxicology and Biochemistry, Salisburylaan 133, Ghent University, Merelbeke, Belgium.
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Zeng Y, Lin Y, Li L, Li Y, Zhang X, Wang M, Chen Y, Luo L, Lu B, Xie Z, Liao Q. Targeted metabolomics for the quantitative measurement of 9 gut microbiota-host co-metabolites in rat serum, urine and feces by liquid chromatography-tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1110-1111:133-143. [PMID: 30807966 DOI: 10.1016/j.jchromb.2019.02.019] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Revised: 12/21/2018] [Accepted: 02/18/2019] [Indexed: 12/16/2022]
Abstract
Gut microbiota-host co-metabolites play an essential role in maintaining homeostasis, and their concentration changes are closely related to a variety of diseases. Developing a targeted metabolomics analytical platform for these co-metabolites will help to elucidate the relationship between intestinal flora and host. Here we present a simple and sensitive liquid chromatography-tandem mass spectrometry method for the analysis of nine gut microbiota-host co-metabolites in rat serum, urine and feces. The compounds were separated on a reversed-phase C18 column using gradient elution with a solvent system consisting of methanol and water (containing 0.05% formic acid) and a 7-min run time. All of the calibration curves exhibited good linear relationships (R2 ≥ 0.9984, Percent Residual Accuracy ≥93.27%). The intra- and interday precision, expressed as relative standard deviation (RSD), was ≤ 14.84%. The accuracy was within 100 ± 13.16% for all analytes. The recovery of the nine compounds in biological samples was ≥ 85.80% with an appropriate RSD (≤12.04%). The validated method was successfully applied to monitor the global changes of these metabolites in obesity. Taken together, these results demonstrate that the method can simultaneously determine the nine co-metabolites in multiple biological matrices and is an essential part of the targeted metabolomics analytical platform, which may become an approach to evaluate the occurrence, development and therapeutic effects of metabolic diseases.
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Affiliation(s)
- Yifeng Zeng
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China; Department of Pharmacy, Zengcheng District People's Hospital of Guangzhou, Guangzhou, China
| | - Yixuan Lin
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Lin Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuan Li
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Xiaojun Zhang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Mengxia Wang
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yongxiong Chen
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Liang Luo
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Biyu Lu
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhiyong Xie
- School of Pharmaceutical Sciences (Shenzhen), Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of New Drug Design and Evaluation, Guangzhou, China.
| | - Qiongfeng Liao
- School of Pharmaceutical Sciences, Guangzhou University of Chinese Medicine, Guangzhou, China.
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72
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Häkkinen MR, Murtola T, Voutilainen R, Poutanen M, Linnanen T, Koskivuori J, Lakka T, Jääskeläinen J, Auriola S. Simultaneous analysis by LC–MS/MS of 22 ketosteroids with hydroxylamine derivatization and underivatized estradiol from human plasma, serum and prostate tissue. J Pharm Biomed Anal 2019; 164:642-652. [DOI: 10.1016/j.jpba.2018.11.035] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Accepted: 11/14/2018] [Indexed: 01/01/2023]
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Monitoring of the deuterated and nondeuterated forms of levodopa and five metabolites in plasma and urine by LC-MS/MS. Bioanalysis 2019; 11:279-293. [PMID: 30786726 DOI: 10.4155/bio-2018-0239] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
To compare pharmacokinetics, metabolism and excretion of levodopa and a triply deuterated form, which is being developed as an improved treatment for Parkinson's disease, methods were needed for quantification of the deuterated and nondeuterated forms of levodopa and five metabolites in human plasma and urine. Results: The natural heavy isotopes in the nondeuterated compounds caused an absolute contribution of up to 100% in the response of the deuterated compounds. Similarly, heavy isotopes in the deuterated analytes contributed to the response of the internal standards, but this did not affect the reliability of the results. Conclusion: Deuterated and nondeuterated analytes can be quantified together by LC-MS/MS, but overestimation of the concentrations of the deuterated molecules may be unavoidable and a careful interpretation of the concentration data is essential.
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74
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Zhang Q, Xu H, Liu R, Gao P, Yang X, Jin W, Zhang Y, Bi K, Li Q. A Novel Strategy for Targeted Lipidomics Based on LC-Tandem-MS Parameters Prediction, Quantification, and Multiple Statistical Data Mining: Evaluation of Lysophosphatidylcholines as Potential Cancer Biomarkers. Anal Chem 2019; 91:3389-3396. [DOI: 10.1021/acs.analchem.8b04715] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Qian Zhang
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Huarong Xu
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Ran Liu
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Peng Gao
- Metabolomics Core Facility of RHLCCC, Northwestern University Feinberg School of Medicine, Chicago, Illinois 60611, United States
| | - Xiao Yang
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Wei Jin
- Urumqi Traditional Chinese Medicine Hospital, 590 Youhao South Road, Urumqi 830000, China
| | - Yiwen Zhang
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Kaishun Bi
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Qing Li
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
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Quantification of phenolic acid metabolites in humans by LC-MS: a structural and targeted metabolomics approach. Bioanalysis 2019; 10:1591-1608. [PMID: 30295550 DOI: 10.4155/bio-2018-0140] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
AIM Co-metabolism between a human host and the gastrointestinal microbiota generates many small phenolic molecules such as 3-hydroxy-3-(3-hydroxyphenyl)propanoic acid (3,3-HPHPA), which are reported to be elevated in schizophrenia and autism. Characterization of these chemicals, however, has been limited by analytic challenges. METHODOLOGY/RESULTS We applied HPLC to separate and quantify over 50 analytes, including multiple structural isomers of 3,3-HPHPA in human cerebrospinal fluid, serum and urine. Confirmation of identity was provided by NMR, by MS and other detection methods. The highly selective methods support rapid quantification of multiple metabolites and exhibit superior chromatographic behavior. CONCLUSION An improved ultra-HPLC-MS/MS and structural approaches can accurately quantify 3,3-HPHPA and related analytes in human biological matrices.
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76
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Kaza M, Karaźniewicz-Łada M, Kosicka K, Siemiątkowska A, Rudzki PJ. Bioanalytical method validation: new FDA guidance vs. EMA guideline. Better or worse? J Pharm Biomed Anal 2018; 165:381-385. [PMID: 30590335 DOI: 10.1016/j.jpba.2018.12.030] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 12/15/2018] [Accepted: 12/18/2018] [Indexed: 11/28/2022]
Abstract
Bioanalysis concerns the identification and quantification of analytes in various biological matrices. Validation of any analytical method helps to achieve reliable results that are necessary for proper decisions on drug dosing and patient safety. In the case of bioanalytical methods, validation additionally covers steps of pharmacokinetic and toxicological studies - such as sample collection, handling, shipment, storage, and preparation. We drew our attention to the difference of both the newest FDA Guidance and the EMA Guideline on bioanalytical method validation. We aimed to point out advantages of both documents from the laboratory perspective. The FDA and the EMA documents are similar, but not identical. The EMA describes the practical conduct of experiments more precisely, while the FDA presents reporting recommendations more comprehensively. There are also differences in recommended validation parameters. We hope that the International Council for Harmonisation will combine advantages of both documents to avoid confusing differences in terminology as well as the unnecessary effort of being compliant with two or more guidelines.
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Affiliation(s)
- Michał Kaza
- Pharmaceutical Research Institute, Pharmacokinetics Department, 8 Rydygiera Street, 01-793, Warsaw, Poland.
| | - Marta Karaźniewicz-Łada
- Poznan University of Medical Sciences, Department of Physical Pharmacy and Pharmacokinetics, 6 Święcickiego Street, 60-781, Poznań, Poland.
| | - Katarzyna Kosicka
- Poznan University of Medical Sciences, Department of Physical Pharmacy and Pharmacokinetics, 6 Święcickiego Street, 60-781, Poznań, Poland.
| | - Anna Siemiątkowska
- Poznan University of Medical Sciences, Department of Physical Pharmacy and Pharmacokinetics, 6 Święcickiego Street, 60-781, Poznań, Poland.
| | - Piotr J Rudzki
- Pharmaceutical Research Institute, Pharmacokinetics Department, 8 Rydygiera Street, 01-793, Warsaw, Poland.
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Khoury S, Canlet C, Lacroix MZ, Berdeaux O, Jouhet J, Bertrand-Michel J. Quantification of Lipids: Model, Reality, and Compromise. Biomolecules 2018; 8:E174. [PMID: 30558107 PMCID: PMC6316828 DOI: 10.3390/biom8040174] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 11/30/2018] [Accepted: 12/04/2018] [Indexed: 12/30/2022] Open
Abstract
Lipids are key molecules in various biological processes, thus their quantification is a crucial point in a lot of studies and should be taken into account in lipidomics development. This family is complex and presents a very large diversity of structures, so analyzing and quantifying all this diversity is a real challenge. In this review, the different techniques to analyze lipids will be presented: from nuclear magnetic resonance (NMR) to mass spectrometry (with and without chromatography) including universal detectors. First of all, the state of the art of quantification, with the definitions of terms and protocol standardization, will be presented with quantitative lipidomics in mind, and then technical considerations and limitations of analytical chemistry's tools, such as NMR, mass spectrometry and universal detectors, will be discussed, particularly in terms of absolute quantification.
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Affiliation(s)
- Spiro Khoury
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-Comté, 9E Boulevard Jeanne d'Arc, F-21000 Dijon, France.
- French LipidomYstes Network, 31000 Toulouse, France.
| | - Cécile Canlet
- Toxalim, Research Centre in Food Toxicology, Université de Toulouse, INRA, ENVT, INP-Purpan, UPS, F-31027 Toulouse, France.
- Axiom Platform, MetaToul-MetaboHUB, National Infrastructure for Metabolomics and Fluxomics, F-31027 Toulouse, France.
| | - Marlène Z Lacroix
- INTHERES, Université de Toulouse, INRA, ENVT, 31432 Toulouse, France.
| | - Olivier Berdeaux
- Centre des Sciences du Goût et de l'Alimentation, AgroSup Dijon, CNRS, INRA, Université Bourgogne Franche-Comté, 9E Boulevard Jeanne d'Arc, F-21000 Dijon, France.
- French LipidomYstes Network, 31000 Toulouse, France.
| | - Juliette Jouhet
- French LipidomYstes Network, 31000 Toulouse, France.
- Laboratoire de Physiologie Cellulaire et Végétale, Université Grenoble Alpes, CNRS, INRA, CEA, 38000 Grenoble, France.
| | - Justine Bertrand-Michel
- French LipidomYstes Network, 31000 Toulouse, France.
- MetaToul-Lipidomic Core Facility, MetaboHUB, I2MC U1048, Inserm, 31432 Toulouse, France.
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78
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Voegel CD, La Marca-Ghaemmaghami P, Ehlert U, Baumgartner MR, Kraemer T, Binz TM. Steroid profiling in nails using liquid chromatography-tandem mass spectrometry. Steroids 2018; 140:144-150. [PMID: 30296547 DOI: 10.1016/j.steroids.2018.09.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 08/24/2018] [Accepted: 09/27/2018] [Indexed: 12/31/2022]
Abstract
The retrospective analysis of endogenous steroid hormones in nails can be used to elucidate endocrine diseases and thus help with their diagnosis and treatment. A liquid chromatography-tandem mass spectrometry (LC-MS/MS) based method was developed for the simultaneous identification and quantification of 12 steroid hormones (aldosterone, cortisone, cortisol, corticosterone, 11-deoxycortisol, androstenedione, 11-deoxycorticosterone, testosterone, dehydroepiandrosterone (DHEA), 17α-hydroxyprogesterone (17-OHP), dihydrotestosterone (DHT) and progesterone) in human fingernails. Steroid hormones were extracted from 0.5 mg to 10 mg pulverized nail clippings by methanolic extraction, followed by a liquid-liquid extraction. The analysis was conducted with LC-MS/MS in electrospray ionization positive mode. The method was validated in terms of linearity, limit of detection (LOD), limit of quantification (LOQ), precision, accuracy, matrix effect, recovery and robustness. It was successfully applied for steroid profiling in nails of mothers and their infants where cortisol, cortisone, testosterone, progesterone, androstenedione and 11-deoxycorticosterone could be detected. Furthermore, it could be shown that there is no significant difference in concentrations between left and right hand for cortisol, cortisone and progesterone. A positive linear correlation between cortisol and cortisone in nails was found. In conclusion, it could be shown that nails are a suitable matrix for the retrospective monitoring of cumulative steroid hormone levels.
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Affiliation(s)
- Clarissa Daniela Voegel
- Center for Forensic Hair Analytics, Zurich Institute of Forensic Medicine, University of Zurich, Zurich, Switzerland
| | | | - Ulrike Ehlert
- Clinical Psychology and Psychotherapy, Institute of Psychology, University of Zurich, Zurich, Switzerland
| | - Markus R Baumgartner
- Center for Forensic Hair Analytics, Zurich Institute of Forensic Medicine, University of Zurich, Zurich, Switzerland
| | - Thomas Kraemer
- Department of Forensic Pharmacology and Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, Zurich, Switzerland
| | - Tina Maria Binz
- Center for Forensic Hair Analytics, Zurich Institute of Forensic Medicine, University of Zurich, Zurich, Switzerland.
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79
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Steuer AE, Kamber D, Kraemer T. Evaluation of endogenous urinary biomarkers for indirect detection of urine adulteration attempts by five different chemical adulterants in mass spectrometry methods. Drug Test Anal 2018; 11:638-648. [PMID: 30408836 DOI: 10.1002/dta.2539] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2018] [Revised: 10/29/2018] [Accepted: 10/31/2018] [Indexed: 01/08/2023]
Abstract
Reliable detection of urine adulteration attempts to circumvent positive drug testing represents a critical step for laboratories in abstinence control settings. An ideal workflow for high-throughput testing would involve simultaneous detection of adulteration attempts in the same run with drug detection. Monitoring of degraded or oxidized endogenous urinary compounds as indirect markers has been previously evaluated for that purpose exemplified for the adulterant potassium nitrite (KNO2 ). Fifteen, previously identified endogenous markers should now be evaluated for their general applicability to detect adulteration attempts for the adulterants hypochlorite-based bleach (NaOCl), peroxidase and peroxide (H2 O2 ), pyridinium chlorochromate (PCC), and iodine (I2 ). Initial experiments revealed similar results for the tested adulterants regarding degradation of indolylacryloylglycine (IAG), uric acid (UA), or UA derivatives. 5-Hydroxyisourate (HIU), the oxidation product of UA, was however only formed by KNO2 , PCC, and H2 O2 . Amino acids showed larger adulterant-dependent differences. All reactions were shown to be influenced by the adulterant concentration and the urinary pH with large variances depending on compound and adulterant. Except for HIU/PCC, all markers were stable within +/- 30% variation for all adulterants at -20°C. Receiver operating characteristics indicated best sensitivity and specificity over all adulterants for IAG (specificity 0.9, sensitivity 1.0) and UA (specificity 1.0, sensitivity 0.9). HIU gave best results for KNO2 , PCC, and H2 O2 and N-acetylneuraminic acid for PCC and H2 O2 , respectively. When integrating a limited number of targets into existing screening methods, monitoring of UA, IAG, N-acetylneuraminic acid, and HIU is recommended.
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Affiliation(s)
- Andrea E Steuer
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, Switzerland
| | - Dominique Kamber
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, Switzerland
| | - Thomas Kraemer
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, Switzerland
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80
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Boxler MI, Schneider TD, Kraemer T, Steuer AE. Analytical considerations for (un)-targeted metabolomic studies with special focus on forensic applications. Drug Test Anal 2018; 11:678-696. [PMID: 30408838 DOI: 10.1002/dta.2540] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2018] [Revised: 11/01/2018] [Accepted: 11/02/2018] [Indexed: 12/13/2022]
Abstract
Over the past few years, the interest in metabolomics has increased in various fields including forensic toxicology. Forensic analysis typically requires a high degree of accuracy, which is often a problem in metabolomics applications. We aimed for a systematic evaluation of different analytical considerations of a metabolomics workflow allowing a targeted approach within an untargeted setup. Samples with 69 metabolites from different chemical classes were qualitatively and quantitatively analyzed on a high resolution quadrupole time of flight mass spectrometer coupled to liquid chromatography (UHPLC-QTOF). Three issues were addressed: (a) Two different approaches on "blind matrix" a simulated body fluid (SBF) and plasma-filtrate, were tested for calibration samples; (b) comparison of two different HPLC columns, reverse-phase (RP) and hydrophilic interaction chromatography (HILIC); and (c) comparison of three different acquisition modes (TOF-MS, information dependent data acquisition (IDA), and sequential window acquisition of all theoretical fragment-ion spectra (SWATH). Samples were measured repeatedly for method comparison based on sensitivity, accuracy, precision, and detection robustness. The blind matrices showed similar accuracy for most analytes, while SBF provided an easier preparation with satisfying results. To cover a wide part of the human metabolome, a combination of RP and HILIC showed the best results. The different scan modes performed equally regarding metabolite quantification while TOF-MS was more sensitive but lacked MS/MS spectra generation. IDA and SWATH files were aligned to various databases where IDA showed good MS/MS spectra matches. SWATH seemed to be beneficial in detection rate but was incompatible with many important software tools in metabolomics.
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Affiliation(s)
- Martina I Boxler
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, Switzerland
| | - Tom D Schneider
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, Switzerland
| | - Thomas Kraemer
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, Switzerland
| | - Andrea E Steuer
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, Switzerland
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81
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Ulaszewska MM, Weinert CH, Trimigno A, Portmann R, Andres Lacueva C, Badertscher R, Brennan L, Brunius C, Bub A, Capozzi F, Cialiè Rosso M, Cordero CE, Daniel H, Durand S, Egert B, Ferrario PG, Feskens EJM, Franceschi P, Garcia-Aloy M, Giacomoni F, Giesbertz P, González-Domínguez R, Hanhineva K, Hemeryck LY, Kopka J, Kulling SE, Llorach R, Manach C, Mattivi F, Migné C, Münger LH, Ott B, Picone G, Pimentel G, Pujos-Guillot E, Riccadonna S, Rist MJ, Rombouts C, Rubert J, Skurk T, Sri Harsha PSC, Van Meulebroek L, Vanhaecke L, Vázquez-Fresno R, Wishart D, Vergères G. Nutrimetabolomics: An Integrative Action for Metabolomic Analyses in Human Nutritional Studies. Mol Nutr Food Res 2018; 63:e1800384. [PMID: 30176196 DOI: 10.1002/mnfr.201800384] [Citation(s) in RCA: 143] [Impact Index Per Article: 23.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 07/10/2018] [Indexed: 12/13/2022]
Abstract
The life sciences are currently being transformed by an unprecedented wave of developments in molecular analysis, which include important advances in instrumental analysis as well as biocomputing. In light of the central role played by metabolism in nutrition, metabolomics is rapidly being established as a key analytical tool in human nutritional studies. Consequently, an increasing number of nutritionists integrate metabolomics into their study designs. Within this dynamic landscape, the potential of nutritional metabolomics (nutrimetabolomics) to be translated into a science, which can impact on health policies, still needs to be realized. A key element to reach this goal is the ability of the research community to join, to collectively make the best use of the potential offered by nutritional metabolomics. This article, therefore, provides a methodological description of nutritional metabolomics that reflects on the state-of-the-art techniques used in the laboratories of the Food Biomarker Alliance (funded by the European Joint Programming Initiative "A Healthy Diet for a Healthy Life" (JPI HDHL)) as well as points of reflections to harmonize this field. It is not intended to be exhaustive but rather to present a pragmatic guidance on metabolomic methodologies, providing readers with useful "tips and tricks" along the analytical workflow.
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Affiliation(s)
- Marynka M Ulaszewska
- Department of Food Quality and Nutrition, Fondazione Edmund Mach, Research and Innovation Centre, San Michele all'Adige, Italy
| | - Christoph H Weinert
- Department of Safety and Quality of Fruit and Vegetables, Max Rubner-Institut, Karlsruhe, Germany
| | - Alessia Trimigno
- Department of Agricultural and Food Science, University of Bologna, Italy
| | - Reto Portmann
- Method Development and Analytics Research Division, Agroscope, Federal Office for Agriculture, Berne, Switzerland
| | - Cristina Andres Lacueva
- Biomarkers & Nutrimetabolomics Laboratory, Department of Nutrition, Food Sciences and Gastronomy, XaRTA, INSA, Faculty of Pharmacy and Food Sciences, Campus Torribera, University of Barcelona, Barcelona, Spain. CIBER de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Barcelona, Spain
| | - René Badertscher
- Method Development and Analytics Research Division, Agroscope, Federal Office for Agriculture, Berne, Switzerland
| | - Lorraine Brennan
- School of Agriculture and Food Science, Institute of Food and Health, University College Dublin, Dublin, Ireland
| | - Carl Brunius
- Department of Biology and Biological Engineering, Food and Nutrition Science, Chalmers University of Technology, Gothenburg, Sweden
| | - Achim Bub
- Department of Physiology and Biochemistry of Nutrition, Max Rubner-Institut, Karlsruhe, Germany
| | - Francesco Capozzi
- Department of Agricultural and Food Science, University of Bologna, Italy
| | - Marta Cialiè Rosso
- Dipartimento di Scienza e Tecnologia del Farmaco Università degli Studi di Torino, Turin, Italy
| | - Chiara E Cordero
- Dipartimento di Scienza e Tecnologia del Farmaco Università degli Studi di Torino, Turin, Italy
| | - Hannelore Daniel
- Nutritional Physiology, Technische Universität München, Freising, Germany
| | - Stéphanie Durand
- Plateforme d'Exploration du Métabolisme, MetaboHUB-Clermont, INRA, Human Nutrition Unit, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Bjoern Egert
- Department of Safety and Quality of Fruit and Vegetables, Max Rubner-Institut, Karlsruhe, Germany
| | - Paola G Ferrario
- Department of Physiology and Biochemistry of Nutrition, Max Rubner-Institut, Karlsruhe, Germany
| | - Edith J M Feskens
- Division of Human Nutrition, Wageningen University, Wageningen, The Netherlands
| | - Pietro Franceschi
- Computational Biology Unit, Fondazione Edmund Mach, Research and Innovation Centre, San Michele all'Adige, Italy
| | - Mar Garcia-Aloy
- Biomarkers & Nutrimetabolomics Laboratory, Department of Nutrition, Food Sciences and Gastronomy, XaRTA, INSA, Faculty of Pharmacy and Food Sciences, Campus Torribera, University of Barcelona, Barcelona, Spain. CIBER de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Barcelona, Spain
| | - Franck Giacomoni
- Plateforme d'Exploration du Métabolisme, MetaboHUB-Clermont, INRA, Human Nutrition Unit, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Pieter Giesbertz
- Molecular Nutrition Unit, Technische Universität München, Freising, Germany
| | - Raúl González-Domínguez
- Biomarkers & Nutrimetabolomics Laboratory, Department of Nutrition, Food Sciences and Gastronomy, XaRTA, INSA, Faculty of Pharmacy and Food Sciences, Campus Torribera, University of Barcelona, Barcelona, Spain. CIBER de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Barcelona, Spain
| | - Kati Hanhineva
- Institute of Public Health and Clinical Nutrition, Department of Clinical Nutrition, University of Eastern Finland, Kuopio, Finland
| | - Lieselot Y Hemeryck
- Laboratory of Chemical Analysis, Department of Veterinary Public Health and Food Safety, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Joachim Kopka
- Department of Molecular Physiology, Applied Metabolome Analysis, Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Sabine E Kulling
- Department of Safety and Quality of Fruit and Vegetables, Max Rubner-Institut, Karlsruhe, Germany
| | - Rafael Llorach
- Biomarkers & Nutrimetabolomics Laboratory, Department of Nutrition, Food Sciences and Gastronomy, XaRTA, INSA, Faculty of Pharmacy and Food Sciences, Campus Torribera, University of Barcelona, Barcelona, Spain. CIBER de Fragilidad y Envejecimiento Saludable (CIBERFES), Instituto de Salud Carlos III, Barcelona, Spain
| | - Claudine Manach
- INRA, UMR 1019, Human Nutrition Unit, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Fulvio Mattivi
- Department of Food Quality and Nutrition, Fondazione Edmund Mach, Research and Innovation Centre, San Michele all'Adige, Italy.,Center Agriculture Food Environment, University of Trento, San Michele all'Adige, Italy
| | - Carole Migné
- Plateforme d'Exploration du Métabolisme, MetaboHUB-Clermont, INRA, Human Nutrition Unit, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Linda H Münger
- Food Microbial Systems Research Division, Agroscope, Federal Office for Agriculture, Berne, Switzerland
| | - Beate Ott
- Else Kröner Fresenius Center for Nutritional Medicine, Technical University of Munich, Munich, Germany.,ZIEL Institute for Food and Health, Core Facility Human Studies, Technical University of Munich, Freising, Germany
| | - Gianfranco Picone
- Department of Agricultural and Food Science, University of Bologna, Italy
| | - Grégory Pimentel
- Food Microbial Systems Research Division, Agroscope, Federal Office for Agriculture, Berne, Switzerland
| | - Estelle Pujos-Guillot
- Plateforme d'Exploration du Métabolisme, MetaboHUB-Clermont, INRA, Human Nutrition Unit, Université Clermont Auvergne, Clermont-Ferrand, France
| | - Samantha Riccadonna
- Computational Biology Unit, Fondazione Edmund Mach, Research and Innovation Centre, San Michele all'Adige, Italy
| | - Manuela J Rist
- Department of Physiology and Biochemistry of Nutrition, Max Rubner-Institut, Karlsruhe, Germany
| | - Caroline Rombouts
- Laboratory of Chemical Analysis, Department of Veterinary Public Health and Food Safety, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Josep Rubert
- Department of Food Quality and Nutrition, Fondazione Edmund Mach, Research and Innovation Centre, San Michele all'Adige, Italy
| | - Thomas Skurk
- Else Kröner Fresenius Center for Nutritional Medicine, Technical University of Munich, Munich, Germany.,ZIEL Institute for Food and Health, Core Facility Human Studies, Technical University of Munich, Freising, Germany
| | - Pedapati S C Sri Harsha
- School of Agriculture and Food Science, Institute of Food and Health, University College Dublin, Dublin, Ireland
| | - Lieven Van Meulebroek
- Laboratory of Chemical Analysis, Department of Veterinary Public Health and Food Safety, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Lynn Vanhaecke
- Laboratory of Chemical Analysis, Department of Veterinary Public Health and Food Safety, Faculty of Veterinary Medicine, Ghent University, Merelbeke, Belgium
| | - Rosa Vázquez-Fresno
- Departments of Biological Sciences and Computing Science, University of Alberta, Edmonton, Canada
| | - David Wishart
- Departments of Biological Sciences and Computing Science, University of Alberta, Edmonton, Canada
| | - Guy Vergères
- Food Microbial Systems Research Division, Agroscope, Federal Office for Agriculture, Berne, Switzerland
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82
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Gil A, van der Pol A, van der Meer P, Bischoff R. LC-MS analysis of key components of the glutathione cycle in tissues and body fluids from mice with myocardial infarction. J Pharm Biomed Anal 2018; 160:289-296. [DOI: 10.1016/j.jpba.2018.08.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Revised: 07/31/2018] [Accepted: 08/01/2018] [Indexed: 12/11/2022]
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83
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Zhang Q, Xu H, Liu R, Gao P, Yang X, Li P, Wang X, Zhang Y, Bi K, Li Q. Highly Sensitive Quantification Method for Amine Submetabolome Based on AQC-Labeled-LC-Tandem-MS and Multiple Statistical Data Mining: A Potential Cancer Screening Approach. Anal Chem 2018; 90:11941-11948. [PMID: 30208276 DOI: 10.1021/acs.analchem.8b02372] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The relationship between amine submetabolome and cancer has been increasingly investigated. However, no study was performed to evaluate the current methods of amine submetabolomics comprehensively, or to use such quantification results to provide an applicable approach for cancer screening. In this study, a highly sensitive and practical workflow for quantifying amine submetabolome, which was based on 6-aminoquinolyl- N-hydroxysuccinimidyl carbamate (AQC)-labeled-HPLC-MS/MS analysis combined with multiple statistical data processing approach, was established and optimized. Comparison and optimization of two analytical approaches, HILIC separation and precolumn derivatization, and three types of surrogate matrices of plasma were performed systematically. The detection sensitivities of AQC-labeled amines were increased by 50-1000-fold compared with the underivatization-HILIC method. Surrogate matrix was also used to verify the method after a large dilution factor was employed. In data analysis, the specific amino-index for each cancer sample was identified and validated by univariate receiver operating characteristic (ROC) curve analysis, partial least-squares discrimination analysis (PLS-DA), and multivariate ROC curve analysis. These amino indexes were innovatively quantified by multiplying the raised markers and dividing the reduced markers. As a result, the numerical intervals of amino indexes for healthy volunteers and cancer patients were provided, and their clinical value was also improved. Finally, the integrated workflow successfully differentiated the value of the amino index for plasma of lung, breast, colorectal, and gastric cancer samples from controls and among different types of cancer. Furthermore, it was also used to evaluate therapeutic effects. Taken together, the developed methodology, which was characterized by high sensitivity, high throughput, and high practicality, is suitable for amine submetabolomics in studying cancer biomarkers and could also be applied in many other clinical and epidemiological research.
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Affiliation(s)
- Qian Zhang
- School of Pharmacy , Shenyang Pharmaceutical University , 103 Wenhua Road , Shenyang 110016 , China
| | - Huarong Xu
- School of Pharmacy , Shenyang Pharmaceutical University , 103 Wenhua Road , Shenyang 110016 , China
| | - Ran Liu
- School of Pharmacy , Shenyang Pharmaceutical University , 103 Wenhua Road , Shenyang 110016 , China
| | - Peng Gao
- Metabolomics Core Facility of RHLCCC , Northwestern University Feinberg School of Medicine , Chicago , Illinois 60611 , United States
| | - Xiao Yang
- School of Pharmacy , Shenyang Pharmaceutical University , 103 Wenhua Road , Shenyang 110016 , China
| | - Pei Li
- School of Pharmacy , Shenyang Pharmaceutical University , 103 Wenhua Road , Shenyang 110016 , China
| | - Xiaotong Wang
- School of Pharmacy , Shenyang Pharmaceutical University , 103 Wenhua Road , Shenyang 110016 , China
| | - Yiwen Zhang
- School of Pharmacy , Shenyang Pharmaceutical University , 103 Wenhua Road , Shenyang 110016 , China
| | - Kaishun Bi
- School of Pharmacy , Shenyang Pharmaceutical University , 103 Wenhua Road , Shenyang 110016 , China
| | - Qing Li
- School of Pharmacy , Shenyang Pharmaceutical University , 103 Wenhua Road , Shenyang 110016 , China
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84
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Khamis MM, Adamko DJ, Purves RW, El-Aneed A. Quantitative determination of potential urine biomarkers of respiratory illnesses using new targeted metabolomic approach. Anal Chim Acta 2018; 1047:81-92. [PMID: 30567667 DOI: 10.1016/j.aca.2018.09.035] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 09/12/2018] [Accepted: 09/16/2018] [Indexed: 11/16/2022]
Abstract
The diagnosis of asthma and chronic obstructive pulmonary disease (COPD) can be challenging due to the overlap in their clinical presentations in some patients. There is a need for a more objective clinical test that can be routinely used in primary care settings. Through an untargeted 1H NMR urine metabolomic approach, we identified a set of endogenous metabolites as potential biomarkers for the differentiation of asthma and COPD. A subset of these potential biomarkers contains 7 highly polar metabolites of diverse physicochemical properties. To the best of our knowledge, there is no liquid chromatography-tandem mass spectrometry (LC-MS/MS) method that evaluated more than two of the target metabolites in a single analytical run. The target metabolites belong to the families of monosaccharides, organic acids, amino acids, quaternary ammonium compounds and nucleic acids, rendering hydrophilic interaction liquid chromatography (HILIC) an ideal technology for their quantification. Since a clinical decision is to be made from patients data, a fully validated analytical method is required for biomarker validation. Method validation for endogenous metabolites is a daunting task since current guidelines were designed for exogenous compounds. As such, innovative approaches were adopted to meet the validation requirements. Herein, we describe a sensitive HILIC-MS/MS method for the quantification of the 7 endogenous urinary metabolites. Detection was achieved in the multiple reaction monitoring (MRM) mode with polarity switching, using quadrupole-linear ion trap instrument (QTRAP 6500) as well as single ion monitoring in the negative-ion mode. The method was fully validated according to the regulatory guidelines. Linearity was established between 6 and 21000 ng/mL and quality control samples demonstrated acceptable intra- and inter-day accuracy (85.7%-112%), intra- and inter-day precision (CV% <11.5%) as well as stability under various storage and sample processing conditions. To illustrate the method's applicability, the validated method was applied to the analysis of a small set of urine samples collected from asthma and COPD patients. Preliminary modelling of separation was generated using partial least square discriminant analysis (R2 0.752 and Q2 0.57). The adequate separation between patient samples confirms the diagnostic potential of these target metabolites as a proof-of-concept for the differentiation between asthma and COPD. However, more patient urine samples are needed in order to increase the statistical power of the analytical model.
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Affiliation(s)
- Mona M Khamis
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada
| | - Darryl J Adamko
- Department of Pediatrics, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Randy W Purves
- Canadian Food Inspection Agency (CFIA), Saskatoon, SK, Canada
| | - Anas El-Aneed
- College of Pharmacy and Nutrition, University of Saskatchewan, Saskatoon, SK, Canada.
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85
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Olesti E, Rodríguez-Morató J, Gomez-Gomez A, Ramaekers JG, de la Torre R, Pozo OJ. Quantification of endogenous neurotransmitters and related compounds by liquid chromatography coupled to tandem mass spectrometry. Talanta 2018; 192:93-102. [PMID: 30348434 DOI: 10.1016/j.talanta.2018.09.034] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 09/07/2018] [Accepted: 09/11/2018] [Indexed: 11/27/2022]
Abstract
Neurotransmitters are signaling molecules, playing key roles in neuronal communications in the brain. Drug induced changes in neurotransmitters and other brain metabolite concentration may be used to characterize drugs according to their targeted metabolomics profile. Here, we report the development and validation of a straightforward liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for the simultaneous quantification of 16 endogenous small polar compounds in rat plasma and brain homogenates. The method enables the quantification of the neurotransmitters γ-aminobutyric acid, glutamate, acetylcholine and adenosine, as well as choline, glutamine, acetylcarnitine, carnitine, creatine, creatinine, valine, leucine, isoleucine, phenylalanine, tyrosine and tryptophan. After optimizing the sample preparation, chromatographic and spectrometric conditions, the method was successfully validated using the standard addition approach and a hydrophilic interaction chromatography (HILIC) with an amide column. The method was shown to be linear (r > 0.99) as all the compounds were within the ±25% values of intra and inter-day precision and accuracy acceptance. A matrix effect was corrected with the use of 10 isotopically labelled internal standards and the compound stability was evaluated for all compounds. Relevant exaltation of choline (in plasma) and creatinine (in brain) were solved with -20 °C conditions. The applicability of the method was tested by evaluating brain alterations in the concentrations of neurotransmitters and related compounds after the administration of two psychostimulant drugs of abuse (cocaine and methylenedioxypyrovalerone) to rats. A neuro-metabolic fingerprint of each drug was obtained that reflected their pharmacological profile. Altogether, this methodology presents a valuable targeted metabolomics tool for basic and clinical research studies.
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Affiliation(s)
- Eulàlia Olesti
- Integrative Pharmacology & Systems Neuroscience Group, IMIM, Hospital del Mar, Doctor Aiguader 88, 08003 Barcelona, Spain; Department of Experimental & Health Sciences, Universitat Pompeu Fabra (CEXS-UPF), Doctor Aiguader 88, 08003 Barcelona, Spain
| | - Jose Rodríguez-Morató
- Integrative Pharmacology & Systems Neuroscience Group, IMIM, Hospital del Mar, Doctor Aiguader 88, 08003 Barcelona, Spain; Department of Experimental & Health Sciences, Universitat Pompeu Fabra (CEXS-UPF), Doctor Aiguader 88, 08003 Barcelona, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN, CB06/03/028), 15706 Santiago de Compostela, Spain
| | - Alex Gomez-Gomez
- Integrative Pharmacology & Systems Neuroscience Group, IMIM, Hospital del Mar, Doctor Aiguader 88, 08003 Barcelona, Spain; Department of Experimental & Health Sciences, Universitat Pompeu Fabra (CEXS-UPF), Doctor Aiguader 88, 08003 Barcelona, Spain
| | - Johannes G Ramaekers
- Experimental Psychopharmacology Unit, Department of Neurocognition, Faculty of Psychology, Maastricht University, Maastricht, the Netherlands
| | - Rafael de la Torre
- Integrative Pharmacology & Systems Neuroscience Group, IMIM, Hospital del Mar, Doctor Aiguader 88, 08003 Barcelona, Spain; Department of Experimental & Health Sciences, Universitat Pompeu Fabra (CEXS-UPF), Doctor Aiguader 88, 08003 Barcelona, Spain; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN, CB06/03/028), 15706 Santiago de Compostela, Spain
| | - Oscar J Pozo
- Integrative Pharmacology & Systems Neuroscience Group, IMIM, Hospital del Mar, Doctor Aiguader 88, 08003 Barcelona, Spain.
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86
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Steuer AE, Arnold K, Kamber D, Kraemer T. Suitability evaluation of new endogenous biomarkers for the identification of nitrite-based urine adulteration in mass spectrometry methods. Drug Test Anal 2018; 11:230-239. [PMID: 30118186 DOI: 10.1002/dta.2481] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 08/07/2018] [Accepted: 08/08/2018] [Indexed: 01/30/2023]
Abstract
Urine adulteration to circumvent positive drug testing is a fundamental challenge for toxicological laboratories all over the world. Untargeted mass spectrometry (MS) methods used in metabolomics had previously revealed uric acid (UA), histidine, methylhistidine, and their oxidation products, for example 5-hydroxyisourate (HIU) as potential biomarkers for urine adulteration using potassium nitrite (KNO2 ). These markers should be further evaluated for their reliability, stability, and routine applicability. Influence of KNO2 concentration, urinary pH, reaction time, and stability at room temperature, 4°C, and - 20°C was determined in urine under varying conditions. Analysis was performed after protein precipitation with acetonitrile by liquid chromatography-high resolution mass spectrometry (LC-HRMS). Receiver operating characteristics (ROC) analysis was applied for cut-off evaluation after biomarker quantification (n = 100 per group). Blinded measurements (n = 50) were performed to check the general applicability to identify adulterated samples under routine conditions. The higher the adulterant concentration, the lower the concentrations of histidine, methylhistidine, and UA. In return, amounts of their oxidation products increased. Highest changes were observed under weak acid conditions (pH 4-5). Storage at -20°C ensured sufficient stability for all oxidative markers over one month. ROC evaluated biomarker performance and application to unknown samples revealed satisfying results, with HIU as the most suitable biomarker (positive predictive value (PPV) 100%), followed by UA (PPV 93%). HIU and UA proved suitable markers to identify urine adulteration using KNO2 and are ready for implementation into routine MS procedures.
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Affiliation(s)
- Andrea E Steuer
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, Switzerland
| | - Kim Arnold
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, Switzerland
| | - Dominique Kamber
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, Switzerland
| | - Thomas Kraemer
- Department of Forensic Pharmacology & Toxicology, Zurich Institute of Forensic Medicine, University of Zurich, Switzerland
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87
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Proposed selection strategy of surrogate matrix to quantify endogenous substances by Japan Bioanalysis Forum DG2015-15. Bioanalysis 2018; 10:1349-1360. [PMID: 30182726 DOI: 10.4155/bio-2018-0105] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
It is important to select an appropriate surrogate matrix for preparing calibration standards and quality control samples while quantitatively assaying for endogenous substances, because a blank matrix that does not contain the endogenous substance cannot be derived from the species from which the target study samples are collected. This is because the assay results might be affected, depending on the characteristics of the analyte in the surrogate matrix. Our discussion group that participated in the Japan Bioanalysis Forum discussed the recommended selection strategies, focusing on large and small molecules in ligand binding assays and LC-MS, respectively. We established an efficient selection strategy for a surrogate matrix, with simple compositions as the first candidates stated in this article.
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88
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Shen B, Chen C, Hu K, Li X, Kang D, Li H, Zhu Z, Yin X, Xu Y, Shen J, Guo H, Xie L, Wang G, Liang Y. Activated charcoal significantly improved the reliability of methods for quantitative analysis of endogenous substances in biological specimens: Glutathione and cysteine as cases. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1095:241-250. [PMID: 30096608 DOI: 10.1016/j.jchromb.2018.08.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 07/31/2018] [Accepted: 08/03/2018] [Indexed: 10/28/2022]
Abstract
When developing a quantitative assay for exogenous or endogenous compounds, guidelines for method validation normally recommend that the biological specimens should be prepared in corresponding authentic matrices, yet "analyte-free authentic matrices" is in general not available. It is generally known that GSH and CYS are endogenous compounds and present in both prokaryotes and eukaryotes. Herein, an efficient approach for the quantitative analysis of endogenous substances in biological specimens was developed, and glutathione (GSH) & cysteine (CYS) were chosen as model endogenous substances. Activated carbon (AC), a common adsorbent for the adsorption of environmental pollutants, was used to remove the endogenous GSH and CYS and prepare "GSH&CYS-free biological matrix". The endogenous GSH and CYS in mouse plasma, blood and liver homogenate were found can be almost removed via incubating with 100 mg of AC for 2 h. After optimizing the derivatization reagents, internal standard and analytical parameters, a reliable quantitative assay of GSH and CYS in mouse plasma, blood and liver homogenate was developed and validated on LC-ESI-MS/MS using corresponding AC-adsorbed mouse biological matrices. The validation results indicated that the developed method provided suitable accuracy, sensitivity, specificity and high throughput for the analysis of GSH and CYS. Finally, the developed LC-ESI-MS/MS assay was successfully applied to measure the concentrations of GSH and CYS in liver injury mice. The presently developed methodology could be widely applied in the quantitative analysis of endogenous compounds in various complex mixtures such as biological, herbal and environmental samples.
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Affiliation(s)
- Boyu Shen
- Key Lab of Drug Metabolism & Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - Chong Chen
- Key Lab of Drug Metabolism & Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - Kangrui Hu
- Key Lab of Drug Metabolism & Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - Xinuo Li
- Key Lab of Drug Metabolism & Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - Dian Kang
- Key Lab of Drug Metabolism & Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - Haofeng Li
- Key Lab of Drug Metabolism & Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - Zhangpei Zhu
- Key Lab of Drug Metabolism & Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - Xiaoxi Yin
- Key Lab of Drug Metabolism & Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - Yangfan Xu
- Key Lab of Drug Metabolism & Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - Jiajia Shen
- Key Lab of Drug Metabolism & Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - Huimin Guo
- Key Lab of Drug Metabolism & Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - Lin Xie
- Key Lab of Drug Metabolism & Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China
| | - Guangji Wang
- Key Lab of Drug Metabolism & Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China.
| | - Yan Liang
- Key Lab of Drug Metabolism & Pharmacokinetics, State Key Laboratory of Natural Medicines, China Pharmaceutical University, Tongjiaxiang 24, Nanjing 210009, China.
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89
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Taborsky P, Kucera J, Jurica J, Pes O. Heavy water enhancement of fluorescence signal in reversed-phase liquid chromatography. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1092:7-14. [DOI: 10.1016/j.jchromb.2018.05.037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2018] [Revised: 05/25/2018] [Accepted: 05/26/2018] [Indexed: 01/08/2023]
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90
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A validated surrogate analyte LC–MS/MS assay for quantitation of endogenous kynurenine and tryptophan in human plasma. Bioanalysis 2018; 10:1307-1317. [DOI: 10.4155/bio-2018-0044] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Aim: Indoleamine 2,3-dioxygenase (IDO) and tryptophan 2,3-dioxygenase (TDO) catalyze the initial and rate-controlling step of tryptophan metabolism through the kynurenine pathway, which plays an important role in mediating immune response. Accurate measurement of tryptophan and kynurenine is critical for monitoring the activity of IDO/TDO. Experimental: Surrogate analytes ([15N2]-Tryptophan and [13C6]-Kynurenine) were used for preparation of calibration standard and quality control. A fit-for-purpose validation using an approach of surrogate analyte and authentic matrix was carried out. Results: Acid precipitation was used in sample preparation, which yielded good recovery without significant matrix effect. Precision and accuracy results were well within the acceptance criteria. The assay demonstrated successful application to a clinical study to confirm a transient depletion of kynurenine upon IDO inhibition. Conclusion: A robust, specific and simple LC–MS/MS method was developed and validated with a fit-for-purpose style for measuring tryptophan and kynurenine in human plasma samples.
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91
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Rageh AH, Pyell U. “Pseudostationary Ion-Exchanger” Sweeping as an Online Enrichment Technique in the Determination of Nucleosides in Urine via Micellar Electrokinetic Chromatography. Chromatographia 2018. [DOI: 10.1007/s10337-018-3570-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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92
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Gonzalez-Rivera ML, Martinez-Morales F, Alonso-Castro AJ, Lopez-Rodriguez JF, Zapata-Morales JR, Aranda Romo S, Aragon-Martinez OH. Validated and rapid measurement of the ferric reducing antioxidant power in plasma samples. CHEMICAL PAPERS 2018. [DOI: 10.1007/s11696-018-0512-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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93
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Binz TM, Gaehler F, Voegel CD, Hofmann M, Baumgartner MR, Kraemer T. Systematic investigations of endogenous cortisol and cortisone in nails by LC-MS/MS and correlation to hair. Anal Bioanal Chem 2018; 410:4895-4903. [DOI: 10.1007/s00216-018-1131-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 04/27/2018] [Accepted: 05/04/2018] [Indexed: 12/25/2022]
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94
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Analysis by LC–MS/MS of endogenous steroids from human serum, plasma, endometrium and endometriotic tissue. J Pharm Biomed Anal 2018; 152:165-172. [DOI: 10.1016/j.jpba.2018.01.034] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2017] [Revised: 01/16/2018] [Accepted: 01/17/2018] [Indexed: 11/17/2022]
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95
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Klont F, Pouwels SD, Hermans J, van de Merbel NC, Horvatovich P, Ten Hacken NHT, Bischoff R. A fully validated liquid chromatography-mass spectrometry method for the quantification of the soluble receptor of advanced glycation end-products (sRAGE) in serum using immunopurification in a 96-well plate format. Talanta 2018; 182:414-421. [PMID: 29501172 DOI: 10.1016/j.talanta.2018.02.015] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 02/03/2018] [Accepted: 02/05/2018] [Indexed: 12/31/2022]
Abstract
The study of proteins is central to unraveling (patho)physiological processes and has contributed greatly to our understanding of biological systems. Corresponding studies often employ procedures to enrich proteins from their biological matrix using antibodies or other affinity binders coupled to beads with a large surface area and a correspondingly high binding capacity. Striving for maximal binding capacity may, however, not always be required or desirable, for example for proteins of low abundance. Here we describe a simplified immunoprecipitation in 96-well ELISA format (IPE) approach for fast and easy enrichment of proteins. The applicability of this approach for enriching low-abundant proteins was demonstrated by an IPE-based quantitative workflow using liquid chromatography-mass spectrometry (LC-MS) for the soluble Receptor of Advanced Glycation End-products (sRAGE), a promising biomarker in chronic obstructive pulmonary disease (COPD). The method was validated according to U.S. Food and Drug Administration (FDA) and European Medicines Agency (EMA) guidelines and enabled accurate quantitation of sRAGE between 0.1 and 10 ng/mL in 50 µL serum. The assay showed substantial correlation with the two most commonly-used sRAGE immunoassays (ELISAs) (R2-values between 0.7 and 0.8). However, the LC-MS method reported 2-4 times higher sRAGE levels compared to the ELISAs, which is largely due to a suboptimal amount of capturing antibody and/or calibration strategy used by the immunoassays. In conclusion, our simplified IPE approach proved to be an efficient strategy for enriching the low-abundant protein sRAGE from serum and may provide an easy to use platform for enriching other (low-abundant) proteins from complex, biological matrices.
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Affiliation(s)
- Frank Klont
- Department of Analytical Biochemistry, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands; Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Simon D Pouwels
- Department of Pulmonary Diseases, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands; Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Jos Hermans
- Department of Analytical Biochemistry, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Nico C van de Merbel
- Department of Analytical Biochemistry, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands; Bioanalytical Laboratory, PRA Health Sciences, Early Development Services, Amerikaweg 18, 9407 TK Assen, The Netherlands
| | - Péter Horvatovich
- Department of Analytical Biochemistry, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands; Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Nick H T Ten Hacken
- Department of Pulmonary Diseases, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands; Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Rainer Bischoff
- Department of Analytical Biochemistry, Groningen Research Institute of Pharmacy, University of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands; Groningen Research Institute for Asthma and COPD, University Medical Center Groningen, University of Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands.
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96
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Bergh MSS, Bogen IL, Andersen JM, Øiestad ÅML, Berg T. Determination of adrenaline, noradrenaline and corticosterone in rodent blood by ion pair reversed phase UHPLC–MS/MS. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1072:161-172. [DOI: 10.1016/j.jchromb.2017.11.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Revised: 08/28/2017] [Accepted: 11/11/2017] [Indexed: 01/05/2023]
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97
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Hess C, Sydow K, Kueting T, Kraemer M, Maas A. Considerations regarding the validation of chromatographic mass spectrometric methods for the quantification of endogenous substances in forensics. Forensic Sci Int 2017; 283:150-155. [PMID: 29301115 DOI: 10.1016/j.forsciint.2017.12.019] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2017] [Revised: 12/05/2017] [Accepted: 12/08/2017] [Indexed: 11/27/2022]
Abstract
The requirement for correct evaluation of forensic toxicological results in daily routine work and scientific studies is reliable analytical data based on validated methods. Validation of a method gives the analyst tools to estimate the efficacy and reliability of the analytical method. Without validation, data might be contested in court and lead to unjustified legal consequences for a defendant. Therefore, new analytical methods to be used in forensic toxicology require careful method development and validation of the final method. Until now, there are no publications on the validation of chromatographic mass spectrometric methods for the detection of endogenous substances although endogenous analytes can be important in Forensic Toxicology (alcohol consumption marker, congener alcohols, gamma hydroxy butyric acid, human insulin and C-peptide, creatinine, postmortal clinical parameters). For these analytes, conventional validation instructions cannot be followed completely. In this paper, important practical considerations in analytical method validation for endogenous substances will be discussed which may be used as guidance for scientists wishing to develop and validate analytical methods for analytes produced naturally in the human body. Especially the validation parameters calibration model, analytical limits, accuracy (bias and precision) and matrix effects and recovery have to be approached differently. Highest attention should be paid to selectivity experiments.
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Affiliation(s)
- Cornelius Hess
- Institute of Forensic Medicine, University of Bonn, Stiftsplatz 12, D-53111 Bonn, Germany.
| | - Konrad Sydow
- Institute of Forensic Medicine, University of Bonn, Stiftsplatz 12, D-53111 Bonn, Germany
| | - Theresa Kueting
- Institute of Forensic Medicine, University of Bonn, Stiftsplatz 12, D-53111 Bonn, Germany
| | - Michael Kraemer
- Institute of Forensic Medicine, University of Bonn, Stiftsplatz 12, D-53111 Bonn, Germany
| | - Alexandra Maas
- Institute of Forensic Medicine, University of Bonn, Stiftsplatz 12, D-53111 Bonn, Germany
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98
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Zhu B, Wei H, Wang Q, Li F, Dai J, Yan C, Cheng Y. A simultaneously quantitative method to profiling twenty endogenous nucleosides and nucleotides in cancer cells using UHPLC-MS/MS. Talanta 2017; 179:615-623. [PMID: 29310284 DOI: 10.1016/j.talanta.2017.11.054] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 11/08/2017] [Accepted: 11/26/2017] [Indexed: 12/31/2022]
Abstract
Endogenous nucleosides and nucleotides in biosamples are frequently highlighted as the most differential metabolites in recent metabolomics studies. We developed a rapid, sensitive, high-throughput and reliable quantitative method to simultaneously profile 20 endogenous nucleosides and nucleotides in cancer cell lines based on ultra-high performance liquid chromatography-electrospray tandem mass spectrometry (UHPLC- MS/MS) by using a porous graphitic carbon column and basic mobile phase. The results indicated that high pH value of mobile phase containing 0.12% diethylamine (DEA) and 5mM NH4OAC (pH 11.5) was the critical factor to prevent the adsorption of multi-phosphorylated species, and significantly improved peak shape and sensitivity. The optimized method was successfully validated with satisfactory linearity, sensitivity, accuracy, precision, matrix effects, recovery and stability for all analytes. The limit of quantification (LOQ) was in the range of 0.6-6nM (6-60 fmol on column). The validated method was applied to the extract of three epithelial cancer cell lines, and the significant difference in the profiling of the nucleosides and nucleotides among the cancer cell lines enables discrimination of breast cancer cell line from the colon cancer cell line and the lung cancer cell line. This quantified analytical method of 20 endogenous nucleosides and nucleotides in cancer cell lines meets the requirement of quantification in specific expanded metabolomics studies, with good selectivity and sensitivity.
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Affiliation(s)
- Bangjie Zhu
- School of Chemistry and molecular engineering, East China Normal University, Shanghai 200241, China; School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Hai Wei
- Center for Chinese Medical Therapy and Systems Biology, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - Qingjiang Wang
- School of Chemistry and molecular engineering, East China Normal University, Shanghai 200241, China
| | - Fugang Li
- DMPK Department, HD Biosciences (China) Co., Ltd., Shanghai 201201, China
| | - Jieyu Dai
- DMPK Department, HD Biosciences (China) Co., Ltd., Shanghai 201201, China
| | - Chao Yan
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China.
| | - Yu Cheng
- School of Pharmacy, Shanghai Jiao Tong University, Shanghai 200240, China.
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99
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Thomas A, Lenglet S, Chaurand P, Déglon J, Mangin P, Mach F, Steffens S, Wolfender JL, Staub C. Mass spectrometry for the evaluation of cardiovascular diseases based on proteomics and lipidomics. Thromb Haemost 2017; 106:20-33. [DOI: 10.1160/th10-12-0812] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Accepted: 03/18/2011] [Indexed: 01/05/2023]
Abstract
SummaryThe identification and quantification of proteins and lipids is of major importance for the diagnosis, prognosis and understanding of the molecular mechanisms involved in disease development. Owing to its selectivity and sensitivity, mass spectrometry has become a key technique in analytical platforms for proteomic and lipidomic investigations. Using this technique, many strategies have been developed based on unbiased or targeted approaches to highlight or monitor molecules of interest from biomatrices. Although these approaches have largely been employed in cancer research, this type of investigation has been met by a growing interest in the field of cardiovascular disorders, potentially leading to the discovery of novel biomarkers and the development of new therapies. In this paper, we will review the different mass spectrometry- based proteomic and lipidomic strategies applied in cardiovascular diseases, especially atherosclerosis. Particular attention will be given to recent developments and the role of bioinformatics in data treatment. This review will be of broad interest to the medical community by providing a tutorial of how mass spectrometric strategies can support clinical trials.
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100
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Abstract
Contemporary investigations regarding the (patho)physiological roles of the non-canonical cyclic nucleoside monophosphates (cNMP) cytidine 3',5'-cyclic monophosphate (cCMP) and uridine 3',5'-cyclic monophosphate (cUMP) have been hampered by the lack of highly specific and sensitive analytic methods for these analytes. In addition, the existence of 2',3'-cNMP besides 3',5'-cNMP has been described recently. HPLC coupled with tandem mass spectrometry (HPLC-MS/MS) is the method of choice for identification and quantification of low-molecular weight endogenous metabolites. In this chapter, recommendations for an HPLC-MS/MS method for 3',5'- and 2',3'-cNMP are summarized.
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