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Rakholiya B, Shah P, Patel Y, Patel G, Patel S, Patel A. A Review on Analytical Methods for Tigecycline Estimation From Its Bulk and Dosage Form. J AOAC Int 2023; 106:1689-1695. [PMID: 37676830 DOI: 10.1093/jaoacint/qsad099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 05/20/2023] [Accepted: 08/28/2023] [Indexed: 09/09/2023]
Abstract
BACKGROUND Tigecycline (TIG) is a third-generation glycylcycline derivative used as an antimicrobial and anticancer agent for the past few years. Its intricate structure makes it more vulnerable toward degradation under the influence of various environmental factors and leads to the generation of impurities. Due to its stability issues, TIG is available as a lyophilized powder for injection. The analysis of TIG becomes a cumbersome task for analysts due to its instability in solution form. As TIG works as a life-saving drug, it is important to review its analytical methods for its quality control. OBJECTIVE The present review discusses various analytical methodologies for determining TIG from its bulk, lyophilized powder, pharmacopoeial methods and factors responsible for its instability. METHODS The present review represents the analysis of data reported in the literature from 1999-2022 for the analysis of TIG. RESULTS Numerous alternative analytical techniques such as UV-visible spectrophotometry, spectrofluorimetric methods, RP-HPLC (reversed-phase high-performance liquid chromatography) and FT-IR (Fourier transform infrared), and electrophoresis has been reported for quantification, identification, and characterization of TIG. CONCLUSIONS Several analytical techniques are available to be used as a quality control tool for tigecycline, including HPLC without derivatization, whereas the fluorescence technique requires derivatization using acidic dye. A few methods require tedious pre-sample preparation techniques, become time-consuming, and involve using one or more organic solvents; there is a need to develop eco-friendlier methods for analyzing tigecycline. HIGHLIGHTS Various analytical methods such as spectrometric, fluorimetric and chromatographic methods have been discussed for estimation of TIG from its bulk and different dosage form.
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Affiliation(s)
- Bansi Rakholiya
- Charotar University of Science and Technology, Department of Pharmaceutical Chemistry and Analysis, Ramanbhai Patel College of Pharmacy, CHARUSAT Campus, Changa, Petlad, Anand, Gujarat 388 421, India
| | - Priyangi Shah
- Charotar University of Science and Technology, Department of Pharmaceutical Chemistry and Analysis, Ramanbhai Patel College of Pharmacy, CHARUSAT Campus, Changa, Petlad, Anand, Gujarat 388 421, India
| | - Yash Patel
- Charotar University of Science and Technology, Department of Pharmaceutical Chemistry and Analysis, Ramanbhai Patel College of Pharmacy, CHARUSAT Campus, Changa, Petlad, Anand, Gujarat 388 421, India
| | - Gayatri Patel
- Charotar University of Science and Technology, Department of Pharmaceutical Technology, Ramanbhai Patel College of Pharmacy, CHARUSAT Campus, Changa, Petlad, Anand, Gujarat 388 421, India
| | - Samir Patel
- Charotar University of Science and Technology, Department of Pharmaceutical Chemistry and Analysis, Ramanbhai Patel College of Pharmacy, CHARUSAT Campus, Changa, Petlad, Anand, Gujarat 388 421, India
| | - Archita Patel
- Charotar University of Science and Technology, Department of Pharmaceutical Chemistry and Analysis, Ramanbhai Patel College of Pharmacy, CHARUSAT Campus, Changa, Petlad, Anand, Gujarat 388 421, India
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Spiridon A, Oburger E, Valadbeigi Y, Kloimböck T, Stanetty C, Kratena N, Draskovits M, Causon T, Hann S. Surveying the mugineic acid family: Ion mobility - quadrupole time-of-flight mass spectrometry (IM-QTOFMS) characterization and tandem mass spectrometry (LC-ESI-MS/MS) quantification of all eight naturally occurring phytosiderophores. Anal Chim Acta 2023; 1278:341718. [PMID: 37709429 DOI: 10.1016/j.aca.2023.341718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 07/21/2023] [Accepted: 08/13/2023] [Indexed: 09/16/2023]
Abstract
Phytosiderophores (PS) are root exudates released by grass species (Poaceae) that play a pivotal role in iron (Fe) plant nutrition. A direct determination of PS in biological samples is of paramount importance in understanding micronutrient acquisition mediated by PS. To date, eight plant-born PS have been identified; however, no analytical procedure is currently available to quantify all eight PS simultaneously with high analytical confidence. With access to the full set of PS standards for the first time, we report comprehensive methods to both fully characterize (IM-QTOFMS) and quantify (LC-ESI-MS/MS) all eight naturally occurring PS belonging to the mugineic acid family. The quantitative method was fully validated, yielding linear results for all eight analytes, and no unwanted interferences with soil and plant matrices were observed. LOD and LOQ values determined for each PS were below 11 and 35 nmol L-1, respectively. The method's precision under reproducibility conditions (intra- and inter-day) of measurement was less than 2.5% RSD for all analytes. Additionally, all PS were annotated with high-resolution mass spectrometric fragment spectra and further characterized via drift tube ion mobility-mass spectrometry. The collision cross-sections obtained for primary ion species yielded a valuable database for future research focused on in-depth PS studies. The new quantitative method was applied to analyse root exudates from Fe-controlled and deficient barley, oat, rye, and sorghum plants. All eight PS, including mugineic acid (MA), 3"-hydroxymugineic acid (HMA), 3"-epi-hydroxymugineic acid (epi-HMA), hydroxyavenic acid (HAVA), deoxymugineic acid (DMA), 3"-hydroxydeoxymugineic acid (HDMA), 3"-epi-hydroxydeoxymugineic acid (epi-HDMA) and avenic acid (AVA) were for the first time successfully identified and quantified in root exudates of various graminaceous plants using a single analytical procedure. These newly developed methods can be applied to studies aimed at improving crop yield and micronutrient grain content for food consumption via plant-based biofortification.
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Affiliation(s)
- Andreea Spiridon
- University of Natural Resources and Life Sciences, Department of Forest and Soil Science, Institute of Soil Research, Konrad Lorenz-Strasse 24/I, 3430, Tulln an der Donau, Austria
| | - Eva Oburger
- University of Natural Resources and Life Sciences, Department of Forest and Soil Science, Institute of Soil Research, Konrad Lorenz-Strasse 24/I, 3430, Tulln an der Donau, Austria
| | - Younes Valadbeigi
- University of Natural Resources and Life Sciences, Department of Chemistry, Institute of Analytical Chemistry, Muthgasse 18, 1190, Vienna, Austria
| | - Tobias Kloimböck
- University of Natural Resources and Life Sciences, Department of Forest and Soil Science, Institute of Soil Research, Konrad Lorenz-Strasse 24/I, 3430, Tulln an der Donau, Austria
| | - Christian Stanetty
- Vienna University of Technology (TU Wien), Institute of Applied Synthetic Chemistry, Getreidemarkt 9, 1060, Vienna, Austria
| | - Nicolas Kratena
- Vienna University of Technology (TU Wien), Institute of Applied Synthetic Chemistry, Getreidemarkt 9, 1060, Vienna, Austria
| | - Markus Draskovits
- Vienna University of Technology (TU Wien), Institute of Applied Synthetic Chemistry, Getreidemarkt 9, 1060, Vienna, Austria
| | - Tim Causon
- University of Natural Resources and Life Sciences, Department of Chemistry, Institute of Analytical Chemistry, Muthgasse 18, 1190, Vienna, Austria
| | - Stephan Hann
- University of Natural Resources and Life Sciences, Department of Chemistry, Institute of Analytical Chemistry, Muthgasse 18, 1190, Vienna, Austria.
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Ouakhssase A, Fatini N, Ait Addi E. A simple extraction method with no lipid removal for the determination of aflatoxins in almonds by liquid chromatography tandem-mass spectrometry (LC-MS/MS). Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2021; 38:1561-1570. [PMID: 34187324 DOI: 10.1080/19440049.2021.1925167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The present study describes a simple and rapid method for the determination of aflatoxins in almonds using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Aflatoxins were extracted using a modified QuEChERS method with little sample preparation, excluding the use of laborious purification procedures. Extracts were frozen overnight to separate the majority of lipids. The method was successfully validated for almonds. Linearity was demonstrated in the range 0.125-20 µg/kg. Limits of quantification (LOQ) ranged from 0.34 to 0.5 μg/kg. Matrix effect was not significant for the aflatoxins. Satisfactory recoveries were obtained at spike levels below 1 μg/kg and between 1 and 10 μg/kg. Relative standard deviations (RSDs) of repeatability and reproducibility were below 15%. The method was successfully tested with two proficiency tests in almond powder and peanut paste, with acceptable z-scores (-2 ≤ z ≤ 2). Only one of 11 local almond samples contained detectable aflatoxins, at concentrations below the maximum permitted level.
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Affiliation(s)
- Abdallah Ouakhssase
- Research Group: Génie des Procédés Et Ingénierie Chimique, Ecole Supérieure de Technologie d'Agadir, Université Ibn Zohr, Agadir, Morocco
| | - Noureddine Fatini
- Département de Contaminants Organiques, Laboratoire Marocain de l'Agriculture (LABOMAG), Casablanca, Morocco
| | - Elhabib Ait Addi
- Research Group: Génie des Procédés Et Ingénierie Chimique, Ecole Supérieure de Technologie d'Agadir, Université Ibn Zohr, Agadir, Morocco
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An assessment of quality assurance/quality control efforts in high resolution mass spectrometry non-target workflows for analysis of environmental samples. Trends Analyt Chem 2020. [DOI: 10.1016/j.trac.2020.116063] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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5
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Huang WW, Ge XY, Huang Y, Chai XT, Zhang L, Zhang YX, Deng LN, Liu CQ, Xu H, Gao J. High-yield strain of fusidic acid obtained by atmospheric and room temperature plasma mutagenesis and the transcriptional changes involved in improving its production in fungus Fusidium coccineum. J Appl Microbiol 2020; 130:405-415. [PMID: 32734700 DOI: 10.1111/jam.14797] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2020] [Revised: 06/01/2020] [Accepted: 07/21/2020] [Indexed: 11/28/2022]
Abstract
AIMS To obtain the high-yield strain of fusidic acid, which is produced from fungus Fusidium coccineum and is the only fusidane-type antibiotic that has been used clinically, and confirm the changes in the transcription levels involved in increasing its production. METHODS AND RESULTS By using the atmospheric and room temperature plasma mutagenesis technology, a high-yield mutant strain of fusidic acid-producing fungus F. coccineum was obtained. Using the genomic analysis of the original strain based on biosynthetic pathways of ergosterol and helvolic acid, we demonstrate that the pathway involved in the biosynthesis of 2,3-oxidosqualene from acetyl coenzyme A was shared by fusidic acid and ergosterol, and fusidic acid was finally synthesized by the catalysis of multiple cytochrome P450s and short-chain dehydrogenase/reductase from 2,3-oxidosqualene. Then, through the transcriptomic analysis of the original and mutagenized strain, it revealed that the proposed pathway from sucrose to fusidic acid was the most significantly up-regulated in the transcription levels of the mutant strain. CONCLUSIONS The changes in the transcription levels of fusidic acid during its biosynthesis might result in high-yield of fusidic acid in the mutant strain. This is the first report on the whole biosynthetic pathway of fusidic acid in F. coccineum. SIGNIFICANCE AND IMPACT OF THE STUDY This study obtain the genetic basis for the biosynthesis of fusidic acid which could be beneficial for the molecular modifications of F. coccineum to further increase its yield by fermentation in future, and established the foundation to reveal the mechanism of the high-yield of the mutant strain.
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Affiliation(s)
- W W Huang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China.,School of Marine and Bioengineering, Yancheng Institute of Technology, Yancheng, China
| | - X Y Ge
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - Y Huang
- Joyang Laboratories, Yancheng, China
| | - X T Chai
- Joyang Laboratories, Yancheng, China
| | - L Zhang
- School of Marine and Bioengineering, Yancheng Institute of Technology, Yancheng, China
| | - Y X Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - L N Deng
- School of Marine and Bioengineering, Yancheng Institute of Technology, Yancheng, China
| | - C Q Liu
- School of Marine and Bioengineering, Yancheng Institute of Technology, Yancheng, China
| | - H Xu
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Food Science and Light Industry, Nanjing Tech University, Nanjing, China
| | - J Gao
- School of Marine and Bioengineering, Yancheng Institute of Technology, Yancheng, China
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Schulze B, Bader T, Seitz W, Winzenbacher R. Column bleed in the analysis of highly polar substances: an overlooked aspect in HRMS. Anal Bioanal Chem 2020; 412:4837-4847. [DOI: 10.1007/s00216-020-02387-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/17/2019] [Accepted: 01/03/2020] [Indexed: 10/25/2022]
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Ouakhssase A, Chahid A, Choubbane H, Aitmazirt A, Addi EA. Optimization and validation of a liquid chromatography/tandem mass spectrometry (LC-MS/MS) method for the determination of aflatoxins in maize. Heliyon 2019; 5:e01565. [PMID: 31193078 PMCID: PMC6515151 DOI: 10.1016/j.heliyon.2019.e01565] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2019] [Revised: 02/13/2019] [Accepted: 04/23/2019] [Indexed: 11/20/2022] Open
Abstract
A LC-MS/MS method has been optimized and validated for the determination of aflatoxins (AFB1, AFB2, AFG1 and AFG2) in maize. Extraction was performed using a modified QuEChERS method with little sample preparation without the need for purification procedure. Determination was performed by high pressure liquid chromatography (HPLC) coupled to tandem mass spectrometry (MS/MS). The acquisition was performed using MassHunter software in Multiple Reaction Monitoring (MRM) mode in positive polarity. Different mobile phases were tested to control the degree of the ionization and good performances were obtained for methanol/water with 5 mM ammonium acetate. MRM experiments were optimized for each aflatoxin in order to generate sensitive transitions. Linearity was demonstrated for the aflatoxins in the range 0.225-1.25 μg/L. Limits of detection (LOD) (0.11 and 0.36 μg/Kg) and limits of quantification (LOQ) (0.36-1.19 μg/Kg) of the aflatoxins are below the maximum permitted levels set by the European Union (EU). Aflatoxins have acceptable recoveries using QuEChERS method in the acceptable range of 50-120% for levels below 1 μg/Kg. Satisfactory recoveries were also obtained in the acceptable range of 70-110% for levels between 1 and 10 μg/Kg except for AFB2. Relative standard deviation (RSD) of recoveries for the intra-day precision and inter-day precision were below 11 %. Selectivity of the method was tested and no spectral interferences were observed in the appropriate retention times. The main advantage of the proposed method is its ease of use and requires a smaller solvent consumption that reduces the time and cost of the analysis.
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Affiliation(s)
- Abdallah Ouakhssase
- Research group: Génie des procédés et Ingénierie Chimique, Ecole Supérieure de Technologie d'Agadir, B.P: 33/S, Université Ibn Zohr, Agadir, Morocco
| | - Adil Chahid
- Laboratoire Régional d'Analyses et de Recherche Agadir/Office National de Sécurité Sanitaire des Produits Alimentaires (LRARA/ONSSA), BP 474, Agadir, Morocco
| | - Hanane Choubbane
- Laboratoire Molécules: Structure et Interactions avec les Surfaces de Matériaux, Faculté polydisciplinaire de Safi, B.P. 4162, Université Cadi Ayyad, Safi, Morocco
| | - Abdelmajid Aitmazirt
- Laboratoire Régional d'Analyses et de Recherche Agadir/Office National de Sécurité Sanitaire des Produits Alimentaires (LRARA/ONSSA), BP 474, Agadir, Morocco
| | - Elhabib Ait Addi
- Research group: Génie des procédés et Ingénierie Chimique, Ecole Supérieure de Technologie d'Agadir, B.P: 33/S, Université Ibn Zohr, Agadir, Morocco
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Development of a selective and sensitive high-performance liquid chromatography-tandem mass spectrometry assay to support pharmacokinetic studies of LY-487,379 in rat and marmoset. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1093-1094:1-7. [DOI: 10.1016/j.jchromb.2018.06.036] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2018] [Revised: 06/15/2018] [Accepted: 06/17/2018] [Indexed: 11/18/2022]
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9
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Chong YK, Ho CC, Leung SY, Lau SK, Woo PC. Clinical Mass Spectrometry in the Bioinformatics Era: A Hitchhiker's Guide. Comput Struct Biotechnol J 2018; 16:316-334. [PMID: 30237866 PMCID: PMC6138949 DOI: 10.1016/j.csbj.2018.08.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 08/20/2018] [Accepted: 08/21/2018] [Indexed: 02/06/2023] Open
Abstract
Mass spectrometry (MS) is a sensitive, specific and versatile analytical technique in the clinical laboratory that has recently undergone rapid development. From initial use in metabolic profiling, it has matured into applications including clinical toxicology assays, target hormone and metabolite quantitation, and more recently, rapid microbial identification and antimicrobial resistance detection by matrix assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS). In this mini-review, we first succinctly outline the basics of clinical mass spectrometry. Examples of hard ionization (electron ionization) and soft ionization (electrospray ionization, MALDI) are presented to demonstrate their clinical applications. Next, a conceptual discourse on mass selection and determination is presented: quadrupole mass filter, time-of-flight mass spectrometer and the Orbitrap; and MS/MS (tandem-in-space, tandem-in-time and data acquisition), illustrated with clinical examples. Current applications in (1) bacterial and fungal identification, antimicrobial susceptibility testing and phylogenetic classification, (2) general unknown urine toxicology screening and expanded new-born metabolic screening and (3) clinical metabolic profiling by gas chromatography are outlined. Finally, major limitations of MS-based techniques, including the technical challenges of matrix effect and isobaric interference; and novel challenges in the post-genomic era, such as protein molecular variants, are critically discussed from the perspective of service laboratories. Computer technology and structural biology have played important roles in the maturation of this field. MS-based techniques have the potential to replace current analytical techniques, and existing expertise and instrument will undergo rapid evolution. Significant automation and adaptation to regulatory requirements are underway. Mass spectrometry is unleashing its potentials in clinical laboratories.
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Affiliation(s)
- Yeow-Kuan Chong
- Hospital Authority Toxicology Reference Laboratory, Department of Pathology, Princess Margaret Hospital (PMH), Kowloon, Hong Kong
- Chemical Pathology and Medical Genetics, Department of Pathology, Princess Margaret Hospital (PMH), Kowloon, Hong Kong
| | - Chi-Chun Ho
- Division of Chemical Pathology, Department of Clinical Pathology, Pamela Youde Nethersole Eastern Hospital (PYNEH), Hong Kong
- Division of Clinical Biochemistry, Department of Pathology, Queen Mary Hospital (QMH), Hong Kong
- Centre for Genomic Sciences, The University of Hong Kong, Hong Kong
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
| | - Shui-Yee Leung
- Department of Ocean Science, School of Science, The Hong Kong University of Science and Technology, Kowloon, Hong Kong
| | - Susanna K.P. Lau
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Hong Kong
- Research Centre of Infection and Immunology, The University of Hong Kong, Hong Kong
- Carol Yu Centre for Infection, The University of Hong Kong, Hong Kong
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The University of Hong Kong, Hong Kong
| | - Patrick C.Y. Woo
- Department of Microbiology, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong
- State Key Laboratory of Emerging Infectious Diseases, Department of Microbiology, The University of Hong Kong, Hong Kong
- Research Centre of Infection and Immunology, The University of Hong Kong, Hong Kong
- Carol Yu Centre for Infection, The University of Hong Kong, Hong Kong
- Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, The University of Hong Kong, Hong Kong
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Gaudette F, Hamadjida A, Bédard D, Nuara SG, Beaudry F, Huot P. Development and validation of a high-performance liquid chromatography-tandem mass spectrometry method to quantify LY‐354,740 in rat and marmoset plasma. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1061-1062:392-398. [DOI: 10.1016/j.jchromb.2017.07.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Revised: 06/16/2017] [Accepted: 07/06/2017] [Indexed: 12/25/2022]
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A review of high performance liquid chromatographic-mass spectrometric urinary methods for anticancer drug exposure of health care workers. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1060:316-324. [PMID: 28654869 DOI: 10.1016/j.jchromb.2017.06.028] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2017] [Revised: 06/14/2017] [Accepted: 06/17/2017] [Indexed: 12/15/2022]
Abstract
This review describes published high performance liquid chromatography/mass spectrometry (HPLC-MS) methods for the determination of anticancer drugs in human urine as non-invasive tool for monitoring of health care worker exposure to antineoplastic and cytotoxic drugs. HPLC-MS is a sensitive and specific method for analysis of anticancer drugs and their metabolites in biological fluids. In this review, a tabular summary and overview of published HPLC-MS methods are presented, as well as future trends and limitations in this area of research.
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12
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Moein MM, El Beqqali A, Abdel-Rehim M. Bioanalytical method development and validation: Critical concepts and strategies. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1043:3-11. [DOI: 10.1016/j.jchromb.2016.09.028] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Revised: 09/17/2016] [Accepted: 09/19/2016] [Indexed: 12/23/2022]
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13
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Şener H, Anilanmert B, Cengiz S. A fast method for monitoring of organic explosives in soil: a gas temperature gradient approach in LC–APCI/MS/MS. CHEMICAL PAPERS 2017. [DOI: 10.1007/s11696-016-0042-2] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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14
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Mathias PI, B'hymer C. Mercapturic acids: recent advances in their determination by liquid chromatography/mass spectrometry and their use in toxicant metabolism studies and in occupational and environmental exposure studies. Biomarkers 2016; 21:293-315. [PMID: 26900903 PMCID: PMC4894522 DOI: 10.3109/1354750x.2016.1141988] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
This review describes recent selected HPLC/MS methods for the determination of urinary mercapturates that are useful as noninvasive biomarkers in characterizing human exposure to electrophilic industrial chemicals in occupational and environmental studies. High-performance liquid chromatography/mass spectrometry is a sensitive and specific method for analysis of small molecules found in biological fluids. In this review, recent selected mercapturate quantification methods are summarized and specific cases are presented. The biological formation of mercapturates is introduced and their use as indicators of metabolic processing of reactive toxicants is discussed, as well as future trends and limitations in this area of research.
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Affiliation(s)
- Patricia I Mathias
- a Division of Applied Science and Technology , U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Biomonitoring and Health Assessment Branch, Robert a. Taft Laboratories , Cincinnati , OH , USA
| | - Clayton B'hymer
- a Division of Applied Science and Technology , U.S. Department of Health and Human Services, Centers for Disease Control and Prevention, National Institute for Occupational Safety and Health, Biomonitoring and Health Assessment Branch, Robert a. Taft Laboratories , Cincinnati , OH , USA
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Alternative matrices for therapeutic drug monitoring of immunosuppressive agents using LC-MS/MS. Bioanalysis 2016; 7:1037-58. [PMID: 25966013 DOI: 10.4155/bio.15.35] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Immunosuppressive drugs used in solid organ transplants typically have narrow therapeutic windows and high intra- and intersubject variability. To ensure satisfactory exposure, therapeutic drug monitoring (TDM) plays a pivotal role in any successful posttransplant maintenance therapy. Currently, recommendations for optimum immunosuppressant concentrations are based on blood/plasma measurements. However, they introduce many disadvantages, including poor prediction of allograft survival and toxicity, a weak correlation with drug concentrations at the site of action and the invasive nature of the sample collection. Thus, alternative matrices have been investigated. This paper reviews tandem-mass spectrometry (LC-MS/MS) methods used for the quantification of immunosuppressant drugs utilizing nonconventional matrices, namely oral fluids, fingerprick blood and intracellular and intratissue sampling. The advantages, disadvantages and clinical application of such alternative mediums are discussed. Additionally, sample extraction techniques and basic chromatography information regarding these methods are presented in tabulated form.
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Cheng K, Wang S, Guo K, Zhang D, Guo J, Sun W, Hu Y. Analysis of Nanafrocin in Foodstuffs of Animal Origin by LC–MS–MS. Chromatographia 2009. [DOI: 10.1365/s10337-009-1449-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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17
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Haseleu G, Intelmann D, Hofmann T. Identification and RP-HPLC-ESI-MS/MS quantitation of bitter-tasting beta-acid transformation products in beer. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2009; 57:7480-7489. [PMID: 19627140 DOI: 10.1021/jf901759y] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Thermal treatment of the hop beta-acid colupulone under wort boiling conditions, followed by LC-TOF-MS and 1D/2D NMR spectroscopy, revealed cohulupone, hulupinic acid, nortricyclocolupone, two tricyclocolupone epimers, two dehydrotricyclocolupone epimers, two hydroxytricyclocolupone epimers, and two hydroperoxytricyclocolupone epimers as the major bitter-tasting beta-acid transformation products. Among these compounds, the chemical structures of the hydroxy- as well as the hydroperoxytricyclocolupone epimers have not previously been confirmed by 1D/2D NMR experiments. Depending on their chemical structure, these compounds showed rather low recognition thresholds ranging from 7.9 to 90.3 micromol/L. The lowest thresholds of 7.9 and 14.7 micromol/L were found for cohulupone, imparting a short-lasting, iso-alpha-acid-like bitter impression, and for hydroxytricyclocolupone, exhibiting a long-lasting, lingering, and harsh bitterness perceived on the posterior tongue and throat. Furthermore, HPLC-ESI-MS/MS analysis allowed for the first time a simultaneous detection and quantitation of these bitter-tasting beta-acid transformation products in a range of commercial beer samples without any sample cleanup. Depending on the type of beer, these studies revealed remarkable differences in the concentrations of the individual beta-acid transformation products.
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Affiliation(s)
- Gesa Haseleu
- Food Chemistry and Molecular Sensory Science, Technische Universitat Munchen, Lise-Meitner Strasse 34, Freising, Germany
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Kuhn E, Addona T, Keshishian H, Burgess M, Mani DR, Lee RT, Sabatine MS, Gerszten RE, Carr SA. Developing multiplexed assays for troponin I and interleukin-33 in plasma by peptide immunoaffinity enrichment and targeted mass spectrometry. Clin Chem 2009; 55:1108-17. [PMID: 19372185 DOI: 10.1373/clinchem.2009.123935] [Citation(s) in RCA: 217] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Protein biomarker candidates from discovery proteomics must be quantitatively verified in patient samples before they can progress to clinical validation. Here we demonstrate that peptide immunoaffinity enrichment coupled with stable isotope dilution mass spectrometry (SISCAPA-MRM) can be used to configure assays with performance suitable for candidate biomarker verification. As proof of principle, we configured SISCAPA assays for troponin I (cTnI), an established biomarker of cardiac injury, and interleukin 33 (IL-33), an emerging immunological and cardiovascular marker for which robust immunoassays are currently not available. METHODS We configured individual and multiplexed assays in which peptides were enriched from digested human plasma using antipeptide antibodies. Assay performance was established using response curves for peptides and proteins spiked into normal plasma. We quantified proteins using labeled peptides as internal standards, and we measured levels of cTnI in patients who underwent a planned myocardial infarction for hypertrophic obstructive cardiomyopathy. RESULTS Measurement of cTnI and IL-33 proteins from trypsin-digested plasma was linear from 1.5 to 5000 microg/L, with imprecision <13% for both proteins, processed individually or multiplexed. Results correlated well (R = 0.89) with a commercial immunoassay. CONCLUSIONS We used an established biomarker of cardiac injury and an emerging biomarker to demonstrate how SISCAPA can detect and quantify changes in concentration of proteins present at 1-10 microg/L in plasma. Our results demonstrate that these assays can be multiplexed and retain the necessary precision, reproducibility, and sensitivity to be applied to new and uncharacterized candidate biomarkers for verification of low-abundance proteins in blood.
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Affiliation(s)
- Eric Kuhn
- Broad Institute of Massachusetts Institute of Technology and Harvard, Cambridge, MA 02142, USA
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Lakso HA, Appelblad P, Schneede J. Quantification of methylmalonic acid in human plasma with hydrophilic interaction liquid chromatography separation and mass spectrometric detection. Clin Chem 2008; 54:2028-35. [PMID: 18845771 DOI: 10.1373/clinchem.2007.101253] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Measurement of methylmalonic acid (MMA) in serum or plasma is useful for diagnosing cobalamin deficiency. We developed a method for quantifying MMA in plasma based on hydrophilic interaction liquid chromatography (HILIC) and single-stage negative electrospray ionization (ESI) mass spectrometry. METHODS We deproteinized plasma samples (200 microL) with 800 microL acidified acetonitrile containing 0.17 micromol/L deuterated MMA (D(3)-MMA) internal standard, centrifuged the samples, and injected 4 microL of the supernatant into the LC-MS instrument. Separation was achieved within 3 min on a Merck SeQuant ZIC-HILIC column with a mobile phase consisting of 4 volumes acetonitrile plus 1 volume 100 mmol/L ammonium acetate buffer, pH 4.5, at a flow rate of 400 microL/min. Subsequent column washing and reconditioning contributed to a total run time of 10 min. MMA and D(3)-MMA were quantified by single-ion monitoring (m/z 117.2 and 120.2, respectively) in negative ESI mode at a drying-gas flow rate of 10 L/min, 300 degrees C, and a capillary voltage of 3.0 kV. RESULTS The estimated limits of MMA quantification and detection were 0.09 micromol/L and 0.03 micromol/L, respectively, in plasma. The assay was linear to 200 micromol/L. Interassay and intraassay CVs were < or = 5% at all tested concentrations. Recoveries were 90%-93%. CONCLUSIONS This robust assay allows analysis of MMA in human plasma without derivatization. Sample preparation is simple and suitable for automation.
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Affiliation(s)
- Hans-Ake Lakso
- Department of Clinical Pharmacology, University of Umeå, Umeå, Sweden
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Two new techniques for sample preparation in bioanalysis: Microextraction in packed sorbent (MEPS) and use of a bonded monolith as sorbent for sample preparation in polypropylene tips for 96-well plates. Anal Bioanal Chem 2008; 393:797-807. [DOI: 10.1007/s00216-008-2305-4] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2008] [Revised: 07/08/2008] [Accepted: 07/17/2008] [Indexed: 10/21/2022]
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Oldiges M, Lütz S, Pflug S, Schroer K, Stein N, Wiendahl C. Metabolomics: current state and evolving methodologies and tools. Appl Microbiol Biotechnol 2007; 76:495-511. [PMID: 17665194 DOI: 10.1007/s00253-007-1029-2] [Citation(s) in RCA: 177] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2007] [Revised: 05/19/2007] [Accepted: 05/21/2007] [Indexed: 01/10/2023]
Abstract
In recent years, metabolomics developed to an accepted and valuable tool in life sciences. Substantial improvements of analytical hardware allow metabolomics to run routinely now. Data are successfully used to investigate genotype-phenotype relations of strains and mutants. Metabolomics facilitates metabolic engineering to optimise mircoorganisms for white biotechnology and spreads to the investigation of biotransformations and cell culture. Metabolomics serves not only as a source of qualitative but also quantitative data of intra-cellular metabolites essential for the model-based description of the metabolic network operating under in vivo conditions. To collect reliable metabolome data sets, culture and sampling conditions, as well as the cells' metabolic state, are crucial. Hence, application of biochemical engineering principles and method standardisation efforts become important. Together with the other more established omics technologies, metabolomics will strengthen its claim to contribute to the detailed understanding of the in vivo function of gene products, biochemical and regulatory networks and, even more ambitious, the mathematical description and simulation of the whole cell in the systems biology approach. This knowledge will allow the construction of designer organisms for process application using biotransformation and fermentative approaches making effective use of single enzymes, whole microbial and even higher cells.
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Affiliation(s)
- Marco Oldiges
- Institute of Biotechnology 2, Forschungszentrum Jülich GmbH, 52425, Jülich, Germany.
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Gentili A. LC-MS methods for analyzing anti-inflammatory drugs in animal-food products. Trends Analyt Chem 2007. [DOI: 10.1016/j.trac.2007.01.013] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Alnouti Y, Li M, Kavetskaia O, Bi H, Hop CECA, Gusev AI. Method for internal standard introduction for quantitative analysis using on-line solid-phase extraction LC-MS/MS. Anal Chem 2007; 78:1331-6. [PMID: 16478130 DOI: 10.1021/ac051806q] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel approach for on-line introduction of internal standard (IS) for quantitative analysis using LC-MS/MS has been developed. In this approach, analyte and IS are introduced into the sample injection loop in different steps. Analyte is introduced into the injection loop using a conventional autosampler (injector) needle pickup from a sample vial. IS is introduced into the sample injection loop on-line from a microreservoir containing the IS solution using the autosampler. As a result, both analyte and IS are contained in the sample loop prior to the injection into the column. Methodology allowed to reliably introduce IS and demonstrated injection accuracy and precision comparable to those obtained using off-line IS introduction (i.e., IS and analyte are premixed before injection) while maintaining chromatographic parameters (i.e., analyte and IS elution time and peak width). This new technique was applied for direct analysis of model compounds in rat plasma using on-line solid-phase extraction (SPE) LC-MS/MS quantification. In combination with on-line SPE, IS serves as a surrogate IS and compensates for signal variations attributed to sample preparation and instrumentation factors including signal suppression. The assays yielded accuracy (85-119%), precision (2-16%), and analyte recovery comparable to those obtained using off-line IS introduction. Furthermore, on-line IS introduction allows for nonvolumetric sample (plasma) collection and direct analysis without the need of measuring and aliquoting a fixed sample volume prior to the on-line SPE LC-MS/MS analysis. Therefore, this methodology enables direct sample (plasma) analysis without any sample manipulation and preparation.
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Affiliation(s)
- Yazen Alnouti
- Pharmacokinetics, Dynamics and Metabolism, Pfizer Global Research and Development, Groton, CT 06340, USA
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Hirabayashi A, Ishimaru M, Manri N, Yokosuka T, Hanzawa H. Detection of potential ion suppression for peptide analysis in nanoflow liquid chromatography/mass spectrometry. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2007; 21:2860-6. [PMID: 17663490 DOI: 10.1002/rcm.3157] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
A detection technique for ion suppression in liquid chromatography/mass spectrometry (LC/MS) was developed by adding a probe to an LC mobile phase at a certain concentration. The probe is so hydrophilic that it is not adsorbed in a reversed-phase nanoflow LC column, and, furthermore, has an isoelectric point of about 3, which is lower than that for most peptides and is close to the pH of the mobile phase. The intensity of the protonated probe molecule decreases much more than that of other peptides when ion suppression occurs. Thus, the occurrence of the ion suppression is detected by a decrease in the mass chromatogram for the protonated probe molecule, and the decrease ratio is higher than that for other ions.
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Affiliation(s)
- Atsumu Hirabayashi
- Central Research Laboratory, Hitachi, Ltd., Kokubunji, Tokyo 185-8601, Japan.
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Current literature in mass spectrometry. JOURNAL OF MASS SPECTROMETRY : JMS 2003; 38:1117-1124. [PMID: 14595863 DOI: 10.1002/jms.413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
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