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Dong S, Zhang N, Yi M, Zhang J, Di D, Deng J, Li L, Hu B. Slug-Flow Microextraction Mass Spectrometry for Enhanced Detection of Analytes in Human Tear Fluids using Noninvasive Microsampling and Nanoelectrospray Ionization via a Capillary. Anal Chem 2023; 95:16054-16058. [PMID: 37852267 DOI: 10.1021/acs.analchem.3c03683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
In vivo noninvasive sampling and sensitive analysis of human tear fluids at the microliter level is an important but challenging task in investigating eye health. In this work, capillary microsampling coupled with slug-flow microextraction mass spectrometry (SFME-MS) was developed for enhanced detection of analytes in human tear fluids. As low as 1.0 μL of human tear fluid could be directly sampled using a capillary, and extraction/spray solvent was then loaded into the capillary to perform slug-flow microextraction and direct nanoelectrospray ionization (nESI) of analytes. All analytical procedures, including tear microsampling, microextraction, and ionization of analytes, were performed using a capillary. Enhanced detection of therapeutic drugs and disease biomarkers in human tear fluids was successfully demonstrated. Acceptable analytical performances including sensitivity, reproducibility, and quantitation were obtained. It is found that the use of SFME could improve the nESI-MS detection of trace analytes over 100-fold that depends on the chemical properties of analytes. Overall, this study showed that SFME-nESI-MS is a highly effective method for enhanced detection of trace analytes in tear fluids and is expected to be a potentially powerful tool in significant biological and clinical applications.
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Affiliation(s)
- Songbin Dong
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air Pollution, Guangdong Provincial Key Laboratory of Speed Capability Research, Jinan University, Guangzhou 510632, China
| | - Ning Zhang
- Ophthalmology Department, First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710064, China
| | - Man Yi
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air Pollution, Guangdong Provincial Key Laboratory of Speed Capability Research, Jinan University, Guangzhou 510632, China
| | - Jianfeng Zhang
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air Pollution, Guangdong Provincial Key Laboratory of Speed Capability Research, Jinan University, Guangzhou 510632, China
| | - Dandan Di
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air Pollution, Guangdong Provincial Key Laboratory of Speed Capability Research, Jinan University, Guangzhou 510632, China
| | - Jiewei Deng
- School of Biomedical and Pharmaceutical Sciences, Smart Medical Innovation Technology Center, Guangdong University of Technology, Guangzhou 510006, China
| | - Lei Li
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air Pollution, Guangdong Provincial Key Laboratory of Speed Capability Research, Jinan University, Guangzhou 510632, China
| | - Bin Hu
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air Pollution, Guangdong Provincial Key Laboratory of Speed Capability Research, Jinan University, Guangzhou 510632, China
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2
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Li W, Chace DH, Garrett TJ. Quantitation of phenylalanine and tyrosine from dried Blood/Plasma spots with impregnated stable isotope internal standards (SIIS) by FIA-SRM. Clin Chim Acta 2023; 549:117551. [PMID: 37683717 DOI: 10.1016/j.cca.2023.117551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/18/2023] [Accepted: 09/05/2023] [Indexed: 09/10/2023]
Abstract
BACKGROUND Dried Blood Spot (DBS) analysis has been used for identification and quantification of diseases and disorders in large populations. Simply collecting blood or plasma samples on cotton paper, followed with an organic solvent extraction, many small molecules can be detected and quantified. In a typical procedure of DBS analysis in newborn screening, stable isotope internal standards (SIIS) are added to extraction solvent as a reference. However, this way of employing SIIS does not reflect extraction efficiency, or protein binding issues, nor does it reflect potential degradation that could occur. In addition, punched-out discs from larger DBS are known to have imprecision typically ≥ 15%. METHODS We developed and tested an approach, internal quantitative DBS (iqDBS), which delivers an exact volume of whole blood or plasma to a paper disc that is impregnated with a dried concentration of SIIS for quantitation. Amino acids were derivatized to make butyl esters and measured using Flow Injection Analysis with Selected Reaction Monitoring (FIA-SRM). RESULTS We demonstrated with phenylalanine and tyrosine improved sensitivity and accuracy by applying iqDBS. CONCLUSIONS We established a new method for quantitative analysis of small molecules from dried blood spots that incorporates stable isotope internal standard at the time of blood collection.
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Affiliation(s)
- Wenqian Li
- University of Florida, Department of Chemistry, Gainesville, FL, United States
| | | | - Timothy J Garrett
- University of Florida, Department of Pathology, Immunology and Laboratory Medicine, Gainesville, FL, United States.
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3
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Coon A, Setzen G, Musah RA. Mass Spectrometric Interrogation of Earwax: Toward the Detection of Ménière's Disease. ACS OMEGA 2023; 8:27010-27023. [PMID: 37546591 PMCID: PMC10399190 DOI: 10.1021/acsomega.3c01943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 06/16/2023] [Indexed: 08/08/2023]
Abstract
Many diseases remain difficult to identify because the occurrence of characteristic biomarkers within traditional matrices such as blood and urine remain unknown. Disease diagnosis could, therefore, benefit from the analysis of readily accessible, non-traditional matrices that have a high chemical content and contain distinguishing biomarkers. One such matrix is cerumen (i.e., earwax), whose chemical complexity can pose challenges when analyzed by conventional methods. A combination of cerumen chemical profiles analyzed by gas chromatography-mass spectrometry (GC-MS) and direct analysis in real time-high-resolution mass spectrometry (DART-HRMS) were investigated to ascertain the possible presence of the rare otolaryngological disorder Ménière's disease. This illness is currently identified via "diagnosis by exclusion" in which the disease is distinguished from others with overlapping symptoms by the process of elimination. GC-MS revealed a chemical profile difference between those with and without a Ménière's disease diagnosis by a visually apparent diminution of the compounds present in the Ménière's disease samples. DART-HRMS revealed that the two classes could be differentiated using three fatty acids: cis-9-hexadecenoic acid, cis-10-heptadecenoic acid, and cis-9-octadecenoic acid. These compounds were subsequently quantified by GC-MS and overall, the amounts of these fatty acids were decreased in Ménière's disease patients. The average levels for non-Ménière's disease samples were 7.89 μg/mg for cis-9-hexadecenoic acid, 0.87 μg/mg for cis-10-heptadecenoic acid, and 4.94 μg/mg for cis-9-octadecenoic acid. The average levels for Ménière's disease samples were 1.70 μg/mg for cis-9-hexadecenoic acid, 0.13 μg/mg for cis-10-heptadecenoic acid, and 2.07 μg/mg for cis-9-octadecenoic acid. The confidence levels for cis-9-hexadecenoic acid, cis-10-heptadecenoic acid, and cis-9-octadecenoic acid were 98.7%, 99.9%, and 95.4%, respectively. The results suggest that assessment of the concentrations of these fatty acids could be a useful clinical tool for the more rapid and accurate detection of Ménière's disease.
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Affiliation(s)
- Allix
Marie Coon
- Department
of Chemistry, University at Albany, State
University of New York, 1400 Washington Avenue, Albany, New York 12222, United States
| | - Gavin Setzen
- Albany
ENT and Allergy Services, 123 Everett Rd, Albany, New York 12205, United States
| | - Rabi Ann Musah
- Department
of Chemistry, University at Albany, State
University of New York, 1400 Washington Avenue, Albany, New York 12222, United States
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4
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Piras C, Hale OJ, Reynolds CK, Jones AKB, Taylor N, Morris M, Cramer R. LAP-MALDI MS coupled with machine learning: an ambient mass spectrometry approach for high-throughput diagnostics. Chem Sci 2022; 13:1746-1758. [PMID: 35282613 PMCID: PMC8826629 DOI: 10.1039/d1sc05171g] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 01/18/2022] [Indexed: 12/28/2022] Open
Abstract
Large-scale population screening for early and accurate detection of disease is a key objective for future diagnostics. Ideally, diagnostic tests that achieve this goal are also cost-effective, fast and easily adaptable to new diseases with the potential of multiplexing. Mass spectrometry (MS), particularly MALDI MS profiling, has been explored for many years in disease diagnostics, most successfully in clinical microbiology but less in early detection of diseases. Here, we present liquid atmospheric pressure (LAP)-MALDI MS profiling as a rapid, large-scale and cost-effective platform for disease analysis. Using this new platform, two different types of tests exemplify its potential in early disease diagnosis and response to therapy. First, it is shown that LAP-MALDI MS profiling detects bovine mastitis two days before its clinical manifestation with a sensitivity of up to 70% and a specificity of up to 100%. This highly accurate, pre-symptomatic detection is demonstrated by using a large set of milk samples collected weekly over six months from approximately 500 dairy cows. Second, the potential of LAP-MALDI MS in antimicrobial resistance (AMR) detection is shown by employing the same mass spectrometric setup and similarly simple sample preparation as for the early detection of mastitis.
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Affiliation(s)
- Cristian Piras
- Department of Chemistry, University of Reading Whiteknights Reading RG6 6DX UK +44 (0)118 378 4550.,Department of Health Sciences, "Magna Græcia University" of Catanzaro Campus Universitario "Salvatore Venuta" Viale Europa 88100 Catanzaro Italy
| | - Oliver J Hale
- Department of Chemistry, University of Reading Whiteknights Reading RG6 6DX UK +44 (0)118 378 4550
| | - Christopher K Reynolds
- School of Agriculture, Policy and Development, University of Reading Whiteknights Reading RG6 6EU UK
| | - A K Barney Jones
- School of Agriculture, Policy and Development, University of Reading Whiteknights Reading RG6 6EU UK
| | - Nick Taylor
- Veterinary Epidemiology and Economics Research Unit (VEERU), PAN Livestock Services Ltd, School of Agriculture, Policy and Development, University of Reading Whiteknights Reading RG6 6EU UK
| | | | - Rainer Cramer
- Department of Chemistry, University of Reading Whiteknights Reading RG6 6DX UK +44 (0)118 378 4550
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5
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Ebrahimi SB, Samanta D, Partridge BE, Kusmierz CD, Cheng HF, Grigorescu AA, Chávez JL, Mirau PA, Mirkin CA. Programming Fluorogenic DNA Probes for Rapid Detection of Steroids. Angew Chem Int Ed Engl 2021; 60:15260-15265. [PMID: 33878237 DOI: 10.1002/anie.202103440] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2021] [Revised: 04/13/2021] [Indexed: 12/24/2022]
Abstract
The ability of aptamers to recognize a variety of different molecules has fueled their emergence as recognition agents to probe complex media and cells. Many detection strategies require aptamer binding to its target to result in a dramatic change in structure, typically from an unfolded to a folded state. Here, we report a strategy based on forced intercalation (FIT) that increases the scope of aptamer recognition by transducing subtle changes in aptamer structures into fluorescent readouts. By screening a library of green-fluorescent FIT-aptamers whose design is guided by computational modeling, we could identify hits that sense steroids like dehydroepiandrosterone sulfate (DHEAS) down to 1.3 μM with no loss in binding affinity compared to the unmodified aptamer. This enabled us to study DHEAS in clinical serum samples with several advantages over gold standard methods, including rapid readout (<30 min), simple instrumentation (plate-reader), and low sample volumes (10 μL).
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Affiliation(s)
- Sasha B Ebrahimi
- Department of Chemical and Biological Engineering, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Devleena Samanta
- Department of Chemistry and International Institute for, Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Benjamin E Partridge
- Department of Chemistry and International Institute for, Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Caroline D Kusmierz
- Department of Chemistry and International Institute for, Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Ho Fung Cheng
- Department of Chemistry and International Institute for, Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
| | - Arabela A Grigorescu
- Keck Biophysics Facility, Northwestern University, 2220 Campus Drive, Evanston, IL, 60208, USA
| | - Jorge L Chávez
- Airman Systems Directorate and 711th Human Performance Wing, Air Force Research Laboratory, 2510 Fifth St, Area B Bldg 840, WPAFB, OH, 45433, USA
| | - Peter A Mirau
- Materials and Manufacturing Directorate, Air Force Research Laboratory, 2941 Hobson Way, WPAFB, OH, 45433, USA
| | - Chad A Mirkin
- Department of Chemistry and International Institute for, Nanotechnology, Northwestern University, 2145 Sheridan Road, Evanston, IL, 60208, USA
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6
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Budelier MM, Franks CE, Farnsworth CW, Roper SM. Detecting Fentanyl Analogs in Urine Using Precursor Ion Scan Mode. J Anal Toxicol 2021; 46:bkab002. [PMID: 33416076 DOI: 10.1093/jat/bkab002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 12/15/2020] [Accepted: 01/07/2021] [Indexed: 01/14/2023] Open
Abstract
The opioid crisis has led many providers to inquire about the capabilities of urine drug testing to detect contemporary compounds such as fentanyl and fentanyl analogs. However, current methods for clinical urine drug testing, including immunoassays and targeted liquid chromatography tandem mass spectrometry, are not designed to broadly screen for the variety of fentanyl analogs that may be encountered. In this proof-of-principle study we developed a precursor ion scan method to enable semi-targeted data acquisition for structurally related fentanyl analogs. Based on the knowledge that many analogs fragment to m/z=188 and m/z=105, data was acquired on all precursor ions 250-400 Da that fragmented to these product ions. Using a tandem mass spectrometer we analyzed 102 residual urine specimens, in which we identified fentanyl, acetylfentanyl and acrylfentanyl. In 30 contrived urine samples, the precursor ion scan was also able to identify furanylfentanyl, butryrlfentanyl, 4-fluroisobutrylfentanyl, and despropionylfentanyl with accuracy ranging from 83-100%.
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Affiliation(s)
- Melissa M Budelier
- Department of Pathology and Immunology, Division of Laboratory and Genomic Medicine, Washington University, St. Louis, MO, USA
| | - Caroline E Franks
- Department of Pathology and Immunology, Division of Laboratory and Genomic Medicine, Washington University, St. Louis, MO, USA
| | - Christopher W Farnsworth
- Department of Pathology and Immunology, Division of Laboratory and Genomic Medicine, Washington University, St. Louis, MO, USA
| | - Stephen M Roper
- Department of Pathology and Immunology, Division of Laboratory and Genomic Medicine, Washington University, St. Louis, MO, USA
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7
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Queijo C, Lemes A, Queiruga G. 25 Years of Newborn Screening in Uruguay. JOURNAL OF INBORN ERRORS OF METABOLISM AND SCREENING 2021. [DOI: 10.1590/2326-4594-jiems-2021-0008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
| | - A. Lemes
- Banco de Prevision Social, Uruguay
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8
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Wang Y, Yutuc E, Griffiths WJ. Standardizing and increasing the utility of lipidomics: a look to the next decade. Expert Rev Proteomics 2020; 17:699-717. [PMID: 33191815 DOI: 10.1080/14789450.2020.1847086] [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: 10/23/2022]
Abstract
Introduction: We present our views on the current application of mass spectrometry (MS) based lipidomics and how lipidomics can develop in the next decade to be most practical use to society. That is not to say that lipidomics has not already been of value. In-fact, in its earlier guise as metabolite profiling most of the pathways of steroid biosynthesis were uncovered and via focused lipidomics many inborn errors of metabolism are routinely clinically identified. However, can lipidomics be extended to improve biochemical understanding of, and to diagnose, the most prevalent diseases of the 21st century? Areas covered: We will highlight the concept of 'level of identification' and the equally crucial topic of 'quantification'. Only by using a standardized language for these terms can lipidomics be translated to fields beyond academia. We will remind the lipid scientist of the value of chemical derivatization, a concept exploited since the dawn of lipid biochemistry. Expert opinion: Only by agreement of the concepts of identification and quantification and their incorporation in lipidomics reporting can lipidomics maximize its value.
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Affiliation(s)
- Yuqin Wang
- Swansea University Medical School , Swansea, Wales, UK
| | - Eylan Yutuc
- Swansea University Medical School , Swansea, Wales, UK
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9
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Yao YN, Di D, Yuan ZC, Wu L, Hu B. Schirmer Paper Noninvasive Microsampling for Direct Mass Spectrometry Analysis of Human Tears. Anal Chem 2020; 92:6207-6212. [PMID: 32250596 DOI: 10.1021/acs.analchem.9b05078] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Rapid and sensitive detection of metabolites and chemical residues in human tears is highly beneficial for understanding eye health. In this study, Schirmer paper was used for noninvasive microsampling of human tears, and then paper spray mass spectrometry (PSMS) was performed for direct analysis of human tears. Schirmer PSMS was successfully used for rapid diagnosis of dry-eye syndrome by detecting the volume and metabolites of human tears. Drugs of abuse, therapeutic drugs, and pharmacodynamics in human tears were also investigated by Schirmer PSMS. Furthermore, specific markers of environmental exposures in the air to human eyes, including volatile organic compounds, aerosol, and smoke, were unambiguously sampled and detected in human tears using Schirmer PSMS. Excellent analytical performances were achieved, including single-use, low-sample consumption (1.0 μL), rapid analysis (the whole analytical procedure completed within 3 min), high sensitivity (absolute limit of detection less than or equal to 0.5 pg, signal-to-noise ratio greater than or equal to 3), good reproducibility (relative standard deviation less than 10%, n = 3), and accurate quantitation (average deviation less than 3%, n = 3). Overall, our results showed that Schirmer PSMS is a highly effective method for direct tear analysis and is expected to be a convenient tool for human tear analysis in significant clinical applications.
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Affiliation(s)
- Ya-Nan Yao
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air Pollution, Jinan University, Guangzhou 510632, China
| | - Dandan Di
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air Pollution, Jinan University, Guangzhou 510632, China
| | - Zi-Cheng Yuan
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air Pollution, Jinan University, Guangzhou 510632, China
| | - Lin Wu
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air Pollution, Jinan University, Guangzhou 510632, China
| | - Bin Hu
- Institute of Mass Spectrometry and Atmospheric Environment, Guangdong Provincial Engineering Research Center for On-line Source Apportionment System of Air Pollution, Jinan University, Guangzhou 510632, China
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10
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Hu H, Smith S, Li X, Qian Z, Su Y, Lin M, Tu J, Liu YM. Fast quantification of free amino acids in food by microfluidic voltage-assisted liquid desorption electrospray ionization-tandem mass spectrometry. Anal Bioanal Chem 2020; 412:1947-1954. [PMID: 32020315 PMCID: PMC8717839 DOI: 10.1007/s00216-020-02450-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2019] [Revised: 01/17/2020] [Accepted: 01/22/2020] [Indexed: 12/19/2022]
Abstract
A method based on microfluidic voltage-assisted liquid desorption electrospray ionization-tandem mass spectrometry (VAL-DESI-MS/MS) has been developed for fast quantification of free amino acids in food. Food extracts were transferred to the microfluidic platform and analyzed by liquid desorption ESI-MS/MS. Deuterated aspartic acid (i.e., 2,2,3-d3-Asp) was used as internal standard for analysis. The method had linear calibration curves with r2 values > 0.998. Limits of detection were at the level of sub μM for the amino acids tested, i.e., glutamic acid (Glu), arginine (Arg), tyrosine (Tyr), tryptophan (Trp), and phenylalanine (Phe). To validate the proposed method in food analysis, extracts of Cordyceps fungi were analyzed. Amino acid contents were found in the range from 0.63 mg/g (Tyr in Cordyceps sinensis) to 4.44 mg/g (Glu in Cordyceps militaris). Assay repeatability (RSD) was ≤ 5.2% for all the five amino acids measured in all the samples analyzed. Recovery was found in the range from 95.8 to 105.1% at two spiking concentrations of 0.250 mg/g and 1.00 mg/g. These results prove that the proposed microfluidic VAL-DESI-MS/MS method offers a quick and convenient means of quantifying free amino acids with accuracy and repeatability. Therefore, it may have potential in food analysis for nutritional and quality assessment purposes. Graphical abstract.
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Affiliation(s)
- Hankun Hu
- Zhongnan Hospital, Wuhan University, 169 Donghu Rd, Wuhan, 430071, Hubei, China
| | - Shila Smith
- Department of Chemistry and Biochemistry, Jackson State University, 1400 Lynch Street, Jackson, MS, 39217, USA
| | - Xiangtang Li
- Department of Chemistry and Biochemistry, Jackson State University, 1400 Lynch Street, Jackson, MS, 39217, USA
| | - Zhengming Qian
- Key Laboratory of State Administration of Traditional Chinese Medicine, Sunshine Lake Pharma Co., Ltd, Dongguan, 523850, Guangdong, China
| | - Yaxia Su
- Zhongnan Hospital, Wuhan University, 169 Donghu Rd, Wuhan, 430071, Hubei, China
| | - Manting Lin
- Zhongnan Hospital, Wuhan University, 169 Donghu Rd, Wuhan, 430071, Hubei, China
| | - Jiancheng Tu
- Zhongnan Hospital, Wuhan University, 169 Donghu Rd, Wuhan, 430071, Hubei, China.
| | - Yi-Ming Liu
- Department of Chemistry and Biochemistry, Jackson State University, 1400 Lynch Street, Jackson, MS, 39217, USA.
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11
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Tandem mass spectrometry in the clinical laboratory: A tutorial overview. CLINICAL MASS SPECTROMETRY 2020. [DOI: 10.1016/j.clinms.2019.09.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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12
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Recent progress in the sensing techniques for the detection of human thyroid stimulating hormone. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.06.033] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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13
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Giordano G, Gucciardi A, Pirillo P, Naturale M. Quantification of Underivatized Amino Acids on Dry Blood Spot, Plasma, and Urine by HPLC-ESI-MS/MS. Methods Mol Biol 2019; 2030:153-172. [PMID: 31347117 DOI: 10.1007/978-1-4939-9639-1_13] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Enzyme deficiencies in amino acid metabolism may increase the levels of a single or several compounds in physiological fluids becoming diagnostically significant biomarkers for one or a group of metabolic disorders. Therefore, it is important to monitor a wide range of free amino acids simultaneously and to quantify them. This is time consuming if we use the classical methods and, especially now that many laboratories have introduced Newborn Screening Programs for the semiquantitative analysis, the detection and quantification of some amino acids need to be performed in a short time to reduce the rate of false positives.We have modified the stable isotope dilution HPLC-ESI-MS/MS method previously described by Qu (Qu et al., 2002) for a more rapid, robust, sensitive, and specific detection and quantification of underivatized amino acids. The modified method reduces the time of analysis to 10 min with very good reproducibility of retention times and a better separation of the metabolites and their isomers.The omission of the derivatization step, enabled to achieve some important advantages: fast and simple sample preparation, exclusion of artifacts, and interferences. The use of this technique is highly sensitive and specific and allowed to monitor 40 underivatized amino acids including the key isomers and quantification of some of them, in order to cover many diagnostically important intermediates of metabolic pathways.We propose this HPLC-ESI-MS/MS method for underivatized amino acids as a support for the newborn screening as secondary test using the same dried blood spots for a more accurate and specific examination in case of suspected metabolic diseases. In this way we avoid plasma collection from the patient as it normally occurs, reducing anxiety for the parents and further costs for analysis.The same method was validated and applied also to plasma and urine samples with good reproducibility, accuracy, and precision. The fast run time, the feasibility of high sample throughput, and the small amount of sample required make this method very suitable for routine analysis in the clinical setting.
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Affiliation(s)
- Giuseppe Giordano
- Mass Spectrometry Laboratory, Women's and Children's Health Department, Institute for Pediatrics Research (IRP), Padua University, Padova, Italy.
| | - Antonina Gucciardi
- Mass Spectrometry Laboratory, Women's and Children's Health Department, Institute for Pediatrics Research (IRP), Padua University, Padova, Italy
| | - Paola Pirillo
- Mass Spectrometry Laboratory, Women's and Children's Health Department, Institute for Pediatrics Research (IRP), Padua University, Padova, Italy
| | - Mauro Naturale
- Mass Spectrometry Laboratory, Women's and Children's Health Department, Institute for Pediatrics Research (IRP), Padua University, Padova, Italy
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14
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Thiele B, Hupert M, Santiago-Schübel B, Oldiges M, Hofmann D. Direct Analysis of Underivatized Amino Acids in Plant Extracts by LC-MS/MS (Improved Method). Methods Mol Biol 2019; 2030:403-414. [PMID: 31347134 DOI: 10.1007/978-1-4939-9639-1_30] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In this chapter we describe a method for quantification of 20 proteinogenic amino acids by liquid chromatography-mass spectrometry which affords neither derivatization nor the use of organic solvents. Analysis of the underivatized amino acids is performed by liquid chromatography-electrospray ionization-tandem mass spectrometry (LC-ESI-MS/MS) in the positive ESI mode. Separation is achieved on a strong cation exchange (SCX) column (Luna 5 μ SCX 100 Å) with 5% acetic acid in water (A) and 75 mM ammonium acetate in water (B). Quantification is accomplished by use of d2-phenylalanine as internal standard achieving limits of detection of 5-50 nM. The method was successfully applied for the determination of proteinogenic amino acids in plant extracts.
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Affiliation(s)
- Björn Thiele
- Institute of Bio- and Geosciences, IBG-2: Plant Sciences, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany.
- Institute of Bio- and Geosciences, IBG-3: Agrosphere, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany.
| | - Michelle Hupert
- Central Institute for Engineering, Electronics and Analytics, ZEA-3: Analytics, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Beatrix Santiago-Schübel
- Central Institute for Engineering, Electronics and Analytics, ZEA-3: Analytics, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Marco Oldiges
- Institute of Bio- and Geosciences, IBG-1: Biotechnology, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
| | - Diana Hofmann
- Institute of Bio- and Geosciences, IBG-3: Agrosphere, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
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15
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Banerjee SL, Dionne U, Lambert JP, Bisson N. Targeted proteomics analyses of phosphorylation-dependent signalling networks. J Proteomics 2018; 189:39-47. [DOI: 10.1016/j.jprot.2018.02.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 01/19/2018] [Accepted: 02/01/2018] [Indexed: 01/18/2023]
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16
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Baksi A, Chakraborty P, Nag A, Ghosh D, Bhat S, Pradeep T. Monolayer-Protected Noble-Metal Clusters as Potential Standards for Negative-Ion Mass Spectrometry. Anal Chem 2018; 90:11351-11357. [DOI: 10.1021/acs.analchem.8b02280] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Ananya Baksi
- DST Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Papri Chakraborty
- DST Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Abhijit Nag
- DST Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Debasmita Ghosh
- DST Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Shridevi Bhat
- DST Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
| | - Thalappil Pradeep
- DST Unit of Nanoscience and Thematic Unit of Excellence, Department of Chemistry, Indian Institute of Technology Madras, Chennai 600036, India
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17
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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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18
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Using MALDI-TOF MS coupled with a high-mass detector to directly analyze intact proteins in thyroid tissues. Sci China Chem 2018. [DOI: 10.1007/s11426-017-9230-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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19
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Rapid synthesis of three-dimensional sulfur-doped porous graphene via solid-state microwave irradiation for protein removal in plasma sample pretreatment. Talanta 2018; 185:528-536. [PMID: 29759236 DOI: 10.1016/j.talanta.2018.04.027] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2018] [Revised: 04/01/2018] [Accepted: 04/07/2018] [Indexed: 12/24/2022]
Abstract
In this work, we prepared three-dimensional sulfur-doped porous graphene (3D-SPG) via solid-state microwave method and first introduced it to plasma sample pretreatment as adsorbent for the removal of proteins. The efficient heating effect of solid-state microwave irradiation endowed the as-prepared 3D-SPG with large specific surface area, porous structures and sulfur-doped conjugated π electron surface, thus producing an outstanding adsorbent for proteins adsorption. The adsorption behavior of 3D-SPG towards proteins was explored using bovine serum albumin (BSA) as the model protein and several kinetic models and isotherm models were employed to describe the adsorption process. The results indicated that BSA was adsorbed onto 3D-SPG in a monolayer manner with high adsorption capacity, and chemisorption and intraparticle diffusion was the rate-controlling step in proteins adsorption process. By applying 3D-SPG as adsorbent to remove proteins in real rat plasma, we found that 3D-SPG solid phase extraction (SPE) gained exceedingly high protein removal efficiency compared with other plasma pretreatment methods, suggesting that 3D-SPG SPE could effectively prevent the deterioration of column performance and decrease the interference caused by matrix effect in the follow-up analysis. Furthermore, in comparison with the tandem mass spectra results between 3D-SPG SPE and methanol precipitation, 3D-SPG SPE demonstrated the ability to extract the protein-binding metabolites which usually could not be extracted by methanol precipitation. This ability made 3D-SPG SPE of great value in untargeted metabolomics profiling, because 3D-SPG SPE could be a complementary method to methanol precipitation to improve the coverage of metabolites.
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20
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Wang Y, Tang L, Yin W, Chen J, Leng T, Zheng X, Zhu W, Zhang H, Qiu P, Yang X, Yan G, Hu H. Simultaneous Determination of Seven Neuroactive Steroids Associated with Depression in Rat Plasma and Brain by High Performance Liquid Chromatography-Tandem Mass Spectrometry. ANAL SCI 2018; 32:981-8. [PMID: 27682404 DOI: 10.2116/analsci.32.981] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Sensitive and specific biomarkers are required for the diagnosis and treatment of depression because the existing diagnostic criteria are subjective and could produce false positives or negatives. Some endogenous neuroactive steroids that have shown either antidepressant effects or concentration changes in individuals with depression could provide potential biomarkers. In this study, a simple and specific method was developed to simultaneously determine seven endogenous neuroactive steroids in biological samples: cortisone, cortisol, dehydroepiandrosterone, estradiol, progesterone, pregnenolone, and testosterone. After liquid-liquid extraction, chromatographic separation was achieved on a C18 column with gradient elution using water-methanol at a flow rate of 300 μL min(-1). Detection and quantitation were performed by tandem mass spectrometry with atmospheric pressure chemical ionization and selected reaction monitoring. Plasma and brain neuroactive steroid levels were then determined in control rats and rats exposed to forced swimming, a classical rodent model of depression. The results showed that the plasma concentrations of testosterone, pregnenolone, and progesterone significantly increased in rats exposed to the forced swimming test. In contrast, brain homogenate levels of cortisol, estradiol, and progesterone decreased, while pregnenolone levels were elevated in this model of depression. In conclusion, a new method to quantify neuroactive steroids was successfully developed and applied to their investigation in rat plasma and brain. The findings of this study indicated that plasma testosterone, pregnenolone, and progesterone levels could provide potential biomarkers for the diagnosis and treatment of depression.
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Affiliation(s)
- Youqiong Wang
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-Sen University
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21
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Fenaille F, Barbier Saint-Hilaire P, Rousseau K, Junot C. Data acquisition workflows in liquid chromatography coupled to high resolution mass spectrometry-based metabolomics: Where do we stand? J Chromatogr A 2017; 1526:1-12. [PMID: 29074071 DOI: 10.1016/j.chroma.2017.10.043] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2017] [Revised: 10/15/2017] [Accepted: 10/16/2017] [Indexed: 01/08/2023]
Abstract
Typical mass spectrometry (MS) based untargeted metabolomics protocols are tedious as well as time- and sample-consuming. In particular, they often rely on "full-scan-only" analyses using liquid chromatography (LC) coupled to high resolution mass spectrometry (HRMS) from which metabolites of interest are first highlighted, and then tentatively identified by using targeted MS/MS experiments. However, this situation is evolving with the emergence of integrated HRMS based-data acquisition protocols able to perform multi-event acquisitions. Most of these protocols, referring to as data dependent and data independent acquisition (DDA and DIA, respectively), have been initially developed for proteomic applications and have recently demonstrated their applicability to biomedical studies. In this context, the aim of this article is to take stock of the progress made in the field of DDA- and DIA-based protocols, and evaluate their ability to change conventional metabolomic and lipidomic data acquisition workflows, through a review of HRMS instrumentation, DDA and DIA workflows, and also associated informatics tools.
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Affiliation(s)
- François Fenaille
- Service de Pharmacologie et Immuno-Analyse (SPI), Laboratoire d'Etude du Métabolisme des Médicaments, CEA, INRA, Université Paris Saclay, MetaboHUB, F-91191 Gif-sur-Yvette, France
| | - Pierre Barbier Saint-Hilaire
- Service de Pharmacologie et Immuno-Analyse (SPI), Laboratoire d'Etude du Métabolisme des Médicaments, CEA, INRA, Université Paris Saclay, MetaboHUB, F-91191 Gif-sur-Yvette, France
| | - Kathleen Rousseau
- Service de Pharmacologie et Immuno-Analyse (SPI), Laboratoire d'Etude du Métabolisme des Médicaments, CEA, INRA, Université Paris Saclay, MetaboHUB, F-91191 Gif-sur-Yvette, France
| | - Christophe Junot
- Service de Pharmacologie et Immuno-Analyse (SPI), CEA, INRA, Université Paris Saclay, MetaboHUB, F-91191 Gif-sur-Yvette, France.
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22
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Chen LC, Yoshimura K, Ninomiya S, Takeda S, Hiraoka K. Towards Practical Endoscopic Mass Spectrometry. ACTA ACUST UNITED AC 2017; 6:S0070. [PMID: 28852605 DOI: 10.5702/massspectrometry.s0070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2017] [Accepted: 06/01/2017] [Indexed: 12/20/2022]
Abstract
In this paper, we briefly review the remote mass spectrometric techniques that are viable to perform "endoscopic mass spectrometry," i.e., in-situ and in-vivo MS analysis inside the cavity of human or animal body. We also report our experience with a moving string sampling probe for the remote sample collection and the transportation of adhered sample to an ion source near the mass spectrometer. With a miniaturization of the probe, the method described here has the potential to be fit directly into a medical endoscope.
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Affiliation(s)
- Lee Chuin Chen
- Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
| | - Kentaro Yoshimura
- Department of Anatomy and Cell Biology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
| | - Satoshi Ninomiya
- Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
| | - Sen Takeda
- Department of Anatomy and Cell Biology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi
| | - Kenzo Hiraoka
- Clean Energy Research Center, University of Yamanashi
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23
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Chen K, He R, Luo X, Qin P, Tan L, Tang Y, Yang Z. A fluorescent glycosyl-imprinted polymer for pH and temperature regulated sensing of target glycopeptide antibiotic. Biosens Bioelectron 2017; 94:609-615. [DOI: 10.1016/j.bios.2017.03.059] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 03/21/2017] [Accepted: 03/27/2017] [Indexed: 11/24/2022]
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24
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Chen BJ, Lam TC, Liu LQ, To CH. Post-translational modifications and their applications in eye research (Review). Mol Med Rep 2017; 15:3923-3935. [PMID: 28487982 DOI: 10.3892/mmr.2017.6529] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Accepted: 02/22/2017] [Indexed: 02/05/2023] Open
Abstract
Gene expression is the process by which genetic information is used for the synthesis of a functional gene product, and ultimately regulates cell function. The increase of biological complexity from genome to proteome is vast, and the post-translational modification (PTM) of proteins contribute to this complexity. The study of protein expression and PTMs has attracted attention in the post‑genomic era. Due to the limited capability of conventional biochemical techniques in the past, large‑scale PTM studies were technically challenging. The introduction of effective protein separation methods, specific PTM purification strategies and advanced mass spectrometers has enabled the global profiling of PTMs and the identification of a targeted PTM within the proteome. The present review provides an overview of current proteomic technologies being applied in eye research, with a particular focus on studies of PTMs in ocular tissues and ocular diseases.
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Affiliation(s)
- Bing-Jie Chen
- Department of Optometry and Visual Science, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Thomas Chuen Lam
- Laboratory of Experimental Optometry, Centre for Myopia Research, School of Optometry, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, SAR, P.R. China
| | - Long-Qian Liu
- Department of Optometry and Visual Science, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, P.R. China
| | - Chi-Ho To
- Laboratory of Experimental Optometry, Centre for Myopia Research, School of Optometry, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, SAR, P.R. China
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25
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Chen LC, Naito T, Tsutsui S, Yamada Y, Ninomiya S, Yoshimura K, Takeda S, Hiraoka K. In vivo endoscopic mass spectrometry using a moving string sampling probe. Analyst 2017; 142:2735-2740. [DOI: 10.1039/c7an00650k] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
A novel moving string sampling probe and sample transportation system for performing in situ and in vivo endoscopic MS.
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Affiliation(s)
- Lee Chuin Chen
- Interdisciplinary Graduate School of Medicine and Engineering
- University of Yamanashi
- Kofu
- 400-8511 Japan
| | - Tsubasa Naito
- Interdisciplinary Graduate School of Medicine and Engineering
- University of Yamanashi
- Kofu
- 400-8511 Japan
| | - Satoru Tsutsui
- Interdisciplinary Graduate School of Medicine and Engineering
- University of Yamanashi
- Kofu
- 400-8511 Japan
| | - Yuki Yamada
- Interdisciplinary Graduate School of Medicine and Engineering
- University of Yamanashi
- Kofu
- 400-8511 Japan
| | - Satoshi Ninomiya
- Interdisciplinary Graduate School of Medicine and Engineering
- University of Yamanashi
- Kofu
- 400-8511 Japan
| | - Kentaro Yoshimura
- Department of Anatomy and Cell Biology
- Interdisciplinary Graduate School of Medicine and Engineering
- University of Yamanashi
- Japan
| | - Sen Takeda
- Department of Anatomy and Cell Biology
- Interdisciplinary Graduate School of Medicine and Engineering
- University of Yamanashi
- Japan
| | - Kenzo Hiraoka
- Clean Energy Research Center
- University of Yamanashi
- Kofu
- 400-8511 Japan
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26
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Devi S, Wu BH, Chu PY, Liu YP, Wu HL, Ho YP. Studying the effect of microwave heating on the digestion process and identification of proteins. Electrophoresis 2016; 38:429-440. [PMID: 27770443 DOI: 10.1002/elps.201600392] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 10/06/2016] [Accepted: 10/12/2016] [Indexed: 11/07/2022]
Abstract
The impact of microwave irradiation on the in-solution digestion processes and the detection limit of proteins are systematically studied. Kinetic processes of many peptides produced through the trypsin digestion of various proteins under microwave heating at 50°C were investigated with MALDI-MS. This study also examines the detection limits and digestion completeness of individual proteins under microwave heating at 50°C and at different time intervals (1, 5 and 30 min) using LC-MS. We conclude that if the peptides without missed cleavage dictate the detection limit, conventional digestion will lead to a better detection limit. The detection limit may not differ between the microwave and conventional heating if the peptides with missed cleavage sites and strong intensity are formed at the very early stage (i.e., less than 1 min) and are not further digested throughout the entire digestion process. The digestion of Escherichia coli lysate was compared under conventional and short time (microwave) conditions. The number of proteins identified under conventional heating exceeded that obtained from microwave heating over heating periods less than 5 min. The overall results show that the microwave-assisted digestion is not complete. Although the sequence coverage might be better, the detection limit might be worse than that under conventional heating.
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Affiliation(s)
- Shobha Devi
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan
| | - Bo-Hung Wu
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan
| | - Pei-Yu Chu
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan
| | - Yue-Pei Liu
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan
| | - Hsin-Lin Wu
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan
| | - Yen-Peng Ho
- Department of Chemistry, National Dong Hwa University, Hualien, Taiwan
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27
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Technological Journey From Colorimetric to Tandem Mass Spectrometric Measurements in the Diagnostic Investigation for Phenylketonuria. JOURNAL OF INBORN ERRORS OF METABOLISM AND SCREENING 2016. [DOI: 10.1177/2326409816671733] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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28
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Villani GRD, Gallo G, Scolamiero E, Salvatore F, Ruoppolo M. “Classical organic acidurias”: diagnosis and pathogenesis. Clin Exp Med 2016; 17:305-323. [DOI: 10.1007/s10238-016-0435-0] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2016] [Accepted: 08/23/2016] [Indexed: 12/11/2022]
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29
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Percy AJ, Byrns S, Pennington SR, Holmes DT, Anderson NL, Agreste TM, Duffy MA. Clinical translation of MS-based, quantitative plasma proteomics: status, challenges, requirements, and potential. Expert Rev Proteomics 2016; 13:673-84. [DOI: 10.1080/14789450.2016.1205950] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Andrew J. Percy
- Department of Applications Development, Cambridge Isotope Laboratories, Inc., Tewksbury, MA, USA
| | - Simon Byrns
- Department of Surgery, Faculty of Medicine and Dentistry, University of Alberta, Edmonton, AB, Canada
| | - Stephen R. Pennington
- Department of Pathology, School of Medicine, UCD Conway Institute, University College Dublin, Dublin 4, Ireland
| | - Daniel T. Holmes
- Department of Pathology and Laboratory Medicine, St. Paul’s Hospital, Vancouver, BC, Canada
- Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, Canada
| | - N. Leigh Anderson
- Department of Clinical Biomarkers, SISCAPA Assay Technologies, Inc., Washington, DC, USA
| | - Tasha M. Agreste
- Department of Applications Development, Cambridge Isotope Laboratories, Inc., Tewksbury, MA, USA
| | - Maureen A. Duffy
- Department of Applications Development, Cambridge Isotope Laboratories, Inc., Tewksbury, MA, USA
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30
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Paglia G, Stocchero M, Cacciatore S, Lai S, Angel P, Alam MT, Keller M, Ralser M, Astarita G. Unbiased Metabolomic Investigation of Alzheimer's Disease Brain Points to Dysregulation of Mitochondrial Aspartate Metabolism. J Proteome Res 2016; 15:608-18. [PMID: 26717242 DOI: 10.1021/acs.jproteome.5b01020] [Citation(s) in RCA: 94] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Alzheimer's disease (AD) is the most common cause of adult dementia. Yet the complete set of molecular changes accompanying this inexorable, neurodegenerative disease remains elusive. Here we adopted an unbiased lipidomics and metabolomics approach to surveying frozen frontal cortex samples from clinically characterized AD patients (n = 21) and age-matched controls (n = 19), revealing marked molecular differences between them. Then, by means of metabolomic pathway analysis, we incorporated the novel molecular information into the known biochemical pathways and compared it with the results of a metabolomics meta-analysis of previously published AD research. We found six metabolic pathways of the central metabolism as well as glycerophospholipid metabolism predominantly altered in AD brains. Using targeted metabolomics approaches and MS imaging, we confirmed a marked dysregulation of mitochondrial aspartate metabolism. The altered metabolic pathways were further integrated with clinical data, showing various degrees of correlation with parameters of dementia and AD pathology. Our study highlights specific, altered biochemical pathways in the brains of individuals with AD compared with those of control subjects, emphasizing dysregulation of mitochondrial aspartate metabolism and supporting future venues of investigation.
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Affiliation(s)
- Giuseppe Paglia
- Center for Biomedicine, European Academy of Bolzano/Bozen , Via Galvani 31, 39100 Bolzano, Italy.,Center for Systems Biology, University of Iceland , Sturlugata 8, IS 101 Reykjavik, Iceland
| | - Matteo Stocchero
- S-IN Soluzioni Informatiche S.r.l. , via G. Ferrari 14, 36100 Vicenza, Italy
| | - Stefano Cacciatore
- Institute of Reproductive and Developmental Biology, Imperial College London , London SW7 2AZ, United Kingdom
| | - Steven Lai
- Waters Corporation , Milford, Massachusetts 01757, United States
| | - Peggi Angel
- Protea Biosciences Group, Incorporated Morgantown, West Virginia 26505, United States
| | - Mohammad Tauqeer Alam
- Department of Biochemistry and Cambridge Systems Biology Centre, University of Cambridge , 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom
| | - Markus Keller
- Department of Biochemistry and Cambridge Systems Biology Centre, University of Cambridge , 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom
| | - Markus Ralser
- Department of Biochemistry and Cambridge Systems Biology Centre, University of Cambridge , 80 Tennis Court Road, Cambridge CB2 1GA, United Kingdom.,Mill Hill Laboratory, The Francis Crick Institute , The Ridgeway, London NW1 7AA, United Kingdom
| | - Giuseppe Astarita
- Waters Corporation , Milford, Massachusetts 01757, United States.,Department of Biochemistry and Molecular & Cellular Biology, Georgetown University , Washington, District of Columbia 20007, United States
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31
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Abela L, Simmons L, Steindl K, Schmitt B, Mastrangelo M, Joset P, Papuc M, Sticht H, Baumer A, Crowther LM, Mathis D, Rauch A, Plecko B. N(8)-acetylspermidine as a potential plasma biomarker for Snyder-Robinson syndrome identified by clinical metabolomics. J Inherit Metab Dis 2016; 39:131-7. [PMID: 26174906 DOI: 10.1007/s10545-015-9876-y] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2015] [Revised: 06/16/2015] [Accepted: 06/16/2015] [Indexed: 11/26/2022]
Abstract
Clinical metabolomics has emerged as a powerful tool to study human metabolism in health and disease. Comparative statistical analysis of untargeted metabolic profiles can reveal perturbations of metabolite levels in diseases and thus has the potential to identify novel biomarkers. Here we have applied a simultaneous genetic-metabolomic approach in twin boys with epileptic encephalopathy of unclear etiology. Clinical exome sequencing identified a novel missense mutation in the spermine synthase gene (SMS) that causes Snyder-Robinson syndrome (SRS). Untargeted plasma metabolome analysis revealed significantly elevated levels of N(8)-acetylspermidine, a precursor derivative of spermine biosynthesis, as a potential novel plasma biomarker for SRS. This result was verified in a third patient with genetically confirmed SRS. This study illustrates the potential of metabolomics as a translational technique to support exome data on a functional and clinical level.
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Affiliation(s)
- Lucia Abela
- Division of Child Neurology, University Children's Hospital Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland
- Children's Research Centre, University Children's Hospital Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland
- Radiz-Rare Disease Initiative Zurich, Clinical Research Priority Program for Rare Diseases, University of Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland
| | - Luke Simmons
- Division of Child Neurology, University Children's Hospital Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland
- Children's Research Centre, University Children's Hospital Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland
- Radiz-Rare Disease Initiative Zurich, Clinical Research Priority Program for Rare Diseases, University of Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland
| | - Katharina Steindl
- Radiz-Rare Disease Initiative Zurich, Clinical Research Priority Program for Rare Diseases, University of Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland
- Institute of Medical Genetics, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
| | - Bernhard Schmitt
- Radiz-Rare Disease Initiative Zurich, Clinical Research Priority Program for Rare Diseases, University of Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland
- Division of Epilepsy and Neurophysiology, University Children's Hospital Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland
| | - Massimo Mastrangelo
- Pediatric Neurology Unit, V. Buzzi Children's Hospital, ICP, Via Castelvetro 24, 20154, Milan, Italy
| | - Pascal Joset
- Radiz-Rare Disease Initiative Zurich, Clinical Research Priority Program for Rare Diseases, University of Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland
- Institute of Medical Genetics, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
| | - Mihaela Papuc
- Radiz-Rare Disease Initiative Zurich, Clinical Research Priority Program for Rare Diseases, University of Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland
- Institute of Medical Genetics, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
| | - Heinrich Sticht
- Institute for Biochemistry, University of Erlangen-Nuernberg, Fahrstrasse 17, 91054, Erlangen, Germany
| | - Alessandra Baumer
- Institute of Medical Genetics, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
| | - Lisa M Crowther
- Division of Child Neurology, University Children's Hospital Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland
- Children's Research Centre, University Children's Hospital Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland
- Radiz-Rare Disease Initiative Zurich, Clinical Research Priority Program for Rare Diseases, University of Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland
| | - Déborah Mathis
- Division of Clinical Chemistry and Biochemistry, University Children's Hospital Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland
| | - Anita Rauch
- Radiz-Rare Disease Initiative Zurich, Clinical Research Priority Program for Rare Diseases, University of Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland
- Institute of Medical Genetics, University of Zurich, Wagistrasse 12, 8952, Schlieren, Switzerland
| | - Barbara Plecko
- Division of Child Neurology, University Children's Hospital Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland.
- Children's Research Centre, University Children's Hospital Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland.
- Radiz-Rare Disease Initiative Zurich, Clinical Research Priority Program for Rare Diseases, University of Zurich, Steinwiesstrasse 75, 8032, Zurich, Switzerland.
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Marcos J, Ibañez M, Ventura R, Segura J, To-Figueras J, Pozo OJ. Mass spectrometric characterisation of a condensation product between porphobilinogen and indolyl-3-acryloylglycine in urine of patients with acute intermittent porphyria. JOURNAL OF MASS SPECTROMETRY : JMS 2015; 50:929-937. [PMID: 26349648 DOI: 10.1002/jms.3603] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/27/2015] [Revised: 04/01/2015] [Accepted: 04/07/2015] [Indexed: 06/05/2023]
Abstract
We document the presence of a previously unknown species in the urine of patients with acute intermittent porphyria (AIP). The compound was fully characterised by liquid chromatography tandem mass spectrometry. Interpretation of both full spectrum acquisition and product ion spectra acquired in positive and negative ionisation modes by quadrupole time of flight MS allowed for the identification of a condensation product arising from porphobilinogen (PBG, increased in the urine of AIP patients) and indolyl-3-acryloylglycine (IAG, derived from indolylacrylic acid and present in human urine). The structure was unequivocally confirmed through comparison between the selected reaction monitoring chromatograms obtained from the urinary species and the condensation product qualitatively synthesised in the laboratory. Owing to the large amounts of both PBG and IAG in urine of AIP patients, the possible ex vivo formation of PBG-IAG in urine samples was evaluated. The product was spontaneously formed at room temperature, at 4 °C and even during storage at -20 °C when spiking a control sample with PBG. A positive correlation was found between PBG and PBG-IAG in samples collected from AIP patients. However, no correlation was found between PBG-IAG and IAG. Purified PBG-IAG did not form the characteristic chromogen after application of p-dimethylaminobenzaldehyde in HCl, thus suggesting that the current techniques used to measure PBG in urine of AIP patients based on Ehlrich's reaction do not detect this newly characterised PBG-IAG fraction.
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Affiliation(s)
- Josep Marcos
- Bioanalysis Research Group, IMIM, Hospital del Mar Medical Research Institute, Doctor Aiguader 88, Barcelona, 08003, Spain
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Doctor Aiguader 88, Barcelona, 08003, Spain
| | - Maria Ibañez
- Research Institute for Pesticides and Water, Universitat Jaume I, Avda. Sos Baynat, Castellón, E-12071, Spain
| | - Rosa Ventura
- Bioanalysis Research Group, IMIM, Hospital del Mar Medical Research Institute, Doctor Aiguader 88, Barcelona, 08003, Spain
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Doctor Aiguader 88, Barcelona, 08003, Spain
| | - Jordi Segura
- Bioanalysis Research Group, IMIM, Hospital del Mar Medical Research Institute, Doctor Aiguader 88, Barcelona, 08003, Spain
- Department of Experimental and Health Sciences, Universitat Pompeu Fabra, Doctor Aiguader 88, Barcelona, 08003, Spain
| | - Jordi To-Figueras
- Biochemistry and Molecular Genetics Department, Hospital Clínic, IDIBAPS, University of Barcelona, Villarrroel 170, Barcelona, 08036, Spain
| | - Oscar J Pozo
- Bioanalysis Research Group, IMIM, Hospital del Mar Medical Research Institute, Doctor Aiguader 88, Barcelona, 08003, Spain
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Sajic T, Liu Y, Aebersold R. Using data-independent, high-resolution mass spectrometry in protein biomarker research: perspectives and clinical applications. Proteomics Clin Appl 2015; 9:307-21. [PMID: 25504613 DOI: 10.1002/prca.201400117] [Citation(s) in RCA: 144] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2014] [Revised: 11/13/2014] [Accepted: 12/10/2014] [Indexed: 12/17/2022]
Abstract
In medicine, there is an urgent need for protein biomarkers in a range of applications that includes diagnostics, disease stratification, and therapeutic decisions. One of the main technologies to address this need is MS, used for protein biomarker discovery and, increasingly, also for protein biomarker validation. Currently, data-dependent analysis (also referred to as shotgun proteomics) and targeted MS, exemplified by SRM, are the most frequently used mass spectrometric methods. Recently developed data-independent acquisition techniques combine the strength of shotgun and targeted proteomics, while avoiding some of the limitations of the respective methods. They provide high-throughput, accurate quantification, and reproducible measurements within a single experimental setup. Here, we describe and review data-independent acquisition strategies and their recent use in clinically oriented studies. In addition, we also provide a detailed guide for the implementation of SWATH-MS (where SWATH is sequential window acquisition of all theoretical mass spectra)-one of the data-independent strategies that have gained wide application of late.
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Affiliation(s)
- Tatjana Sajic
- Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Zurich, Switzerland
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Ren Y, McLuckey MN, Liu J, Ouyang Z. Direct mass spectrometry analysis of biofluid samples using slug-flow microextraction nano-electrospray ionization. Angew Chem Int Ed Engl 2014; 53:14124-7. [PMID: 25284028 PMCID: PMC4469778 DOI: 10.1002/anie.201408338] [Citation(s) in RCA: 69] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2014] [Indexed: 01/30/2023]
Abstract
Direct mass spectrometry (MS) analysis of biofluids with simple procedures represents a key step in the translation of MS techniques to clinical and point-of-care applications. The current study reports the development of a single-step method using slug-flow microextraction and nano-electrospray ionization for MS analysis of organic compounds in blood and urine. High sensitivity and quantitation precision have been achieved in the analysis of therapeutic and illicit drugs in 5 μL samples. Real-time chemical derivatization has been incorporated for analyzing anabolic steroids. The monitoring of enzymatic functions has also been demonstrated with cholinesterase in wet blood. The reported study encourages the future development of disposable cartridges, which function with simple operation to replace the traditional complex laboratory procedures for MS analysis of biological samples.
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Affiliation(s)
- Yue Ren
- Weldon School of Biomedical Engineering, Purdue University West Lafayette, IN 47907 (USA)
| | - Morgan N. McLuckey
- Weldon School of Biomedical Engineering, Purdue University West Lafayette, IN 47907 (USA)
| | - Jiangjiang Liu
- Weldon School of Biomedical Engineering, Purdue University West Lafayette, IN 47907 (USA)
| | - Zheng Ouyang
- Weldon School of Biomedical Engineering, Purdue University West Lafayette, IN 47907 (USA)
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35
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Junot C, Fenaille F, Colsch B, Bécher F. High resolution mass spectrometry based techniques at the crossroads of metabolic pathways. MASS SPECTROMETRY REVIEWS 2014; 33:471-500. [PMID: 24288070 DOI: 10.1002/mas.21401] [Citation(s) in RCA: 100] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2013] [Revised: 05/14/2013] [Accepted: 05/15/2013] [Indexed: 06/02/2023]
Abstract
The metabolome is the set of small molecular mass compounds found in biological media, and metabolomics, which refers to as the analysis of metabolome in a given biological condition, deals with the large scale detection and quantification of metabolites in biological media. It is a data driven and multidisciplinary approach combining analytical chemistry for data acquisition, and biostatistics, informatics and biochemistry for mining and interpretation of these data. Since the middle of the 2000s, high resolution mass spectrometry is widely used in metabolomics, mainly because the detection and identification of metabolites are improved compared to low resolution instruments. As the field of HRMS is quickly and permanently evolving, the aim of this work is to review its use in different aspects of metabolomics, including data acquisition, metabolite annotation, identification and quantification. At last, we would like to show that, thanks to their versatility, HRMS instruments are the most appropriate to achieve optimal metabolome coverage, at the border of other omics fields such as lipidomics and glycomics.
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Affiliation(s)
- Christophe Junot
- Commissariat à l'Energie Atomique, Centre de Saclay, DSV/iBiTec-S/SPI, Laboratoire d'Etude du Métabolisme des Médicaments, 91191, Gif-sur-Yvette Cedex, France
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36
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Ren Y, McLuckey MN, Liu J, Ouyang Z. Direct Mass Spectrometry Analysis of Biofluid Samples Using Slug-Flow Microextraction Nano-Electrospray Ionization. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201408338] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Development of an UPLC-MS/MS method for assaying the enzymatic activity of propionyl coenzyme-A carboxylase. Bioanalysis 2014; 6:335-48. [PMID: 24471954 DOI: 10.4155/bio.13.297] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND Propionyl coenzyme-A carboxylase (PCC) is a mitochondrial enzyme previously quantifiable only by radiometric assay. Herein, we report a UPLC-MS/MS method as a superior alternative method for assaying PCC's activity. METHODOLOGY & RESULTS: For the development of the UPLC-MS/MS method, the mass spectra of propionyl coenzyme-A and methyl malonyl coenzyme-A precursor ions, and their full scan product ions were determined. MRM was used for the quantification of the analytes. The method showed good linearity and selectivity for further bioanalytical study. CONCLUSION The developed UPLC-MS/MS method is capable of rapidly quantifying PCC's enzymatic activity and demonstrated suitability for assaying PCC's activity in complex biological samples. Thus, the method will be useful in validating recombinant expression of PCC, and potentially for routine quantification of mitochondrial PCC's activity level in patient cells.
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Zacherl JR, Mihalik SJ, Chace DH, Christensen TC, Robinson LJ, Blair HC. Elaidate, an 18-carbon trans-monoenoic fatty acid, inhibits β-oxidation in human peripheral blood macrophages. J Cell Biochem 2014; 115:62-70. [PMID: 23904193 DOI: 10.1002/jcb.24633] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Accepted: 07/22/2013] [Indexed: 12/11/2022]
Abstract
Consumption of trans-unsaturated fatty acids promotes atherosclerosis, but whether degradation of fats in macrophages is altered by trans-unsaturated fatty acids is unknown. We compared the metabolism of oleate (C18:1Δ9-10 cis; (Z)-octadec-9-enoate), elaidate (C18:Δ9-10 trans; (E)-octadec-9-enoate), and stearate (C18:0, octadecanoate) in adherent peripheral human macrophages. Metabolism was followed by measurement of acylcarnitines in cell supernatants by MS/MS, determination of cellular fatty acid content by GC/MS, and assessment of β-oxidation rates using radiolabeled fatty acids. Cells incubated for 44 h in 100 µM elaidate accumulated more unsaturated fatty acids, including both longer- and shorter-chain, and had reduced C18:0 relative to those incubated with oleate or stearate. Both C12:1 and C18:1 acylcarnitines accumulated in supernatants of macrophages exposed to trans fats. These results suggested β-oxidation inhibition one reaction proximal to the trans bond. Comparison of [1-(14)C]oleate to [1-(14)C]elaidate catabolism showed that elaidate completed the first round of fatty acid β-oxidation at rates comparable to oleate. Yet, in competitive β-oxidation assays with [9,10-(3)H]oleate, tritium release rate decreased when unlabeled oleate was replaced by the same quantity of elaidate. These data show specific inhibition of monoenoic fat catabolism by elaidate that is not shared by other atherogenic fats.
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Affiliation(s)
- Janelle R Zacherl
- Department of Pathology, University of Pittsburgh, Pittsburgh, Pennsylvania, 15261
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39
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Strathmann FG, Schulte S, Goerl K, Petron DJ. Blood-based biomarkers for traumatic brain injury: Evaluation of research approaches, available methods and potential utility from the clinician and clinical laboratory perspectives. Clin Biochem 2014; 47:876-88. [DOI: 10.1016/j.clinbiochem.2014.01.028] [Citation(s) in RCA: 58] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2013] [Revised: 01/05/2014] [Accepted: 01/23/2014] [Indexed: 01/06/2023]
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Tanase IG, Popa DE, Udriştioiu GE, Bunaciu AA, Aboul‐Enein HY. Validation and Quality Control of an ICP‐MS Method for the Quantification and Discrimination of Trace Metals and Application in Paper Analysis: An Overview. Crit Rev Anal Chem 2014; 44:311-27. [DOI: 10.1080/10408347.2013.863141] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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41
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Edwards RL, Griffiths P, Bunch J, Cooper HJ. Compound heterozygotes and beta-thalassemia: Top-down mass spectrometry for detection of hemoglobinopathies. Proteomics 2014; 14:1232-8. [DOI: 10.1002/pmic.201300316] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2013] [Revised: 10/30/2013] [Accepted: 12/10/2013] [Indexed: 11/07/2022]
Affiliation(s)
| | - Paul Griffiths
- Newborn Screening and Biochemical Genetics; Birmingham Children's Hospital NHS Trust; Birmingham UK
| | - Josephine Bunch
- School of Chemistry; University of Birmingham; Birmingham UK
| | - Helen J. Cooper
- School of Biosciences; University of Birmingham; Birmingham UK
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42
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Cheng Q, Li JF, Zhang L, Liu L. Functional Magnetic Nanoparticles for Clinical Application: Electrochemical Immunoassay of Hepatitis B Surface Antigen and α-Fetoprotein. ANAL LETT 2014. [DOI: 10.1080/00032719.2013.848362] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
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Al-Thihli K, Sinclair G, Sirrs S, Mezei M, Nelson J, Vallance H. Performance of serum and dried blood spot acylcarnitine profiles for detection of fatty acid β-oxidation disorders in adult patients with rhabdomyolysis. J Inherit Metab Dis 2014; 37:207-13. [PMID: 23296367 DOI: 10.1007/s10545-012-9578-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2012] [Revised: 12/05/2012] [Accepted: 12/07/2012] [Indexed: 11/28/2022]
Abstract
BACKGROUND Plasma/serum and dried blood spot (DBS) acylcarnitine profiles (ACPs) are key to the diagnosis of mitochondrial fatty acid β-oxidation disorders (FAODs). Despite their significant clinical applications, limited published data exists to compare their sensitivities and specificities. We retrospectively evaluated these two methods in adult patients with a history of rhabdomyolysis; investigated for an underlying FAOD. METHODS A retrospective study was completed for adult patients (investigated between 2003 and 2011) meeting the inclusion criteria of a history of recurrent rhabdomyolysis or one episode of rhabdomyolysis with a history of exercise intolerance. All subjects underwent investigations for an underlying FAOD including DBS and serum ACP analysis concurrently collected during a symptom-free period, and skin biopsy for cultured fibroblast fatty acid oxidation studies or enzyme activity measurement, as indicated, with or without molecular confirmation. Their medical records were reviewed, and the performance of the two methods were compared. RESULTS Seven out of 31 subjects (22.6 %) were diagnosed with an underlying FAOD. Long chain acylcarnitines were more markedly elevated in serum samples from confirmed CPTII cases (n = 4) as compared to matched DBS profiles. The sensitivity and specificity of DBS ACP was 71.4 % (95 % CI, 0.30-0.95) and 100 % (95 % CI, 0.79-1.00), respectively, compared to a sensitivity of 100 % (95 % CI, 0.56-1.00) and a specificity of 94.7 % (95 % CI, 0.72-1.00) for serum ACP. CONCLUSION FAODs appear to be a common cause of recurrent rhabdomyolysis or rhabdomyolysis with a history of exercise induced myalgia. At least historically, FAODs maybe underdiagnosed in adults with rhabdomyolysis. This study suggests that serum ACP might be more sensitive than DBS ACP for detection of an underlying FAOD in adults with rhabdomyolysis while asymptomatic.
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Affiliation(s)
- Khalid Al-Thihli
- Division of Biochemical Diseases, BC Children's Hospital, 4500 Oak St, Vancouver, BC, Canada
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Abstract
A physical method currently being developed for malaria parasite detection and diagnosis in blood is reviewed in this article. The method - direct laser desorption mass spectrometry - is based on the detection of heme (iron protoporphyrin) as a unique qualitative and quantitative molecular biomarker for malaria. In infected erythrocytes, the parasite sequesters heme in a molecular crystal (hemozoin) - a volume of highly concentrated and purified biomarker molecules. Laser desorption mass spectrometry detects only heme from hemozoin in parasite-infected blood, and not heme that is bound to hemoglobin or other proteins in uninfected blood samples. The method requires only a drop of blood with minimal sample preparation. Laser desorption mass spectrometry may become a rapid and high-throughput tool for specific and sensitive pan-malaria detection at levels below 10 parasites/mul of blood.
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Affiliation(s)
- Plamen A Demirev
- Johns Hopkins University, Applied Physics Laboratory, 11100 Johns Hopkins Road, MS 2-217, Laurel, MD 20723-6099, USA.
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45
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Grönbladh A, Johansson J, Kushnir MM, Bergquist J, Hallberg M. The impact of nandrolone decanoate and growth hormone on biosynthesis of steroids in rats. Steroids 2013; 78:1192-9. [PMID: 24012727 DOI: 10.1016/j.steroids.2013.08.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Revised: 08/10/2013] [Accepted: 08/19/2013] [Indexed: 11/23/2022]
Abstract
Growth hormone (GH) and anabolic androgenic steroids (AAS) are commonly used in sports communities. Several studies have suggested an association between GH and AAS. We have investigated the impact of GH in rats treated with nandrolone decanoate (ND). Male Wistar rats received ND (15 mg/kg) every third day during three weeks and were subsequently treated with recombinant human GH (1.0I U/kg) for ten consecutive days. Plasma samples were collected and peripheral organs (i.e. heart, liver, testis and thymus) were dissected and weighed. Concentration of thirteen endogenous steroids was measured in the rat plasma samples using high specificity LC-MS/MS methods. Seven steroids were detected and quantified, and concentrations of estrone, testosterone, and androstenedione were significantly different among the groups, while concentrations of pregnenolone, DHEA, 17-hydroxyprogesterone and corticosterone were not altered. Administration of rhGH alone altered the plasma steroid distribution, and the results demonstrated significantly increased concentrations of plasma estrone as well as decreased concentrations of testosterone and androstenedione in the ND-treated rats. Administration of rhGH to ND-pretreated rats did not reverse the alteration of the steroid distribution induced by ND. Administration of ND decreased the weight of the thymus, and addition of rhGH did not reverse this reduction. However, rhGH administration induced an enlargement of thymus. Taken together, the plasma steroid profile differed in the four groups, i.e. control, AAS, rhGH and the combination of AAS and rhGH treatment.
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Affiliation(s)
- Alfhild Grönbladh
- Department of Pharmaceutical Biosciences, Division of Biological Research on Drug Dependence, Uppsala University, P.O. Box 591, SE-751 24 Uppsala, Sweden.
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Medina S, Domínguez-Perles R, Ferreres F, Tomás-Barberán FA, Gil-Izquierdo Á. The effects of the intake of plant foods on the human metabolome. Trends Analyt Chem 2013. [DOI: 10.1016/j.trac.2013.08.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Chen CH, Lin Z, Garimella S, Zheng L, Shi R, Cooks RG, Ouyang Z. Development of a mass spectrometry sampling probe for chemical analysis in surgical and endoscopic procedures. Anal Chem 2013; 85:11843-50. [PMID: 24251679 DOI: 10.1021/ac4025279] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
A sampling probe based on ambient desorption ionization was designed for in vivo chemical analysis by mass spectrometry in surgical and endoscopic procedures. Sampling ionization of analytes directly from tissue was achieved by sealing the sampling tip against the tissue surface without allowing leakage of the auxiliary gas used for desorption ionization. The desorbed charged species were transferred over a long distance (up to 4 m) through a flexible tube of internal diameter as small as 1/16 in. to the inlet of the mass spectrometer used for analysis. The conditions used for desorption electrospray ionization (DESI) were optimized to achieve biocompatibility for clinical applications while obtaining adequate efficiency for the analysis. This optimization involved the removal of high voltage and use of pure water as a spray solvent instead of the organic solvents or aqueous mixtures normally used. Improved sensitivity was achieved under these conditions by increasing the gas flow rate in the transfer tube. The destructive effect on tissue surfaces associated with typical desorption ionization was avoided by altering the local gas dynamics in the sample area without compromising the overall analysis efficiency.
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Affiliation(s)
- Chien-Hsun Chen
- Weldon School of Biomedical Engineering, Purdue University , West Lafayette, Indiana 47907
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48
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Gouveia MJ, Brindley PJ, Santos LL, da Costa JMC, Gomes P, Vale N. Mass spectrometry techniques in the survey of steroid metabolites as potential disease biomarkers: a review. Metabolism 2013; 62:1206-17. [PMID: 23664145 PMCID: PMC3755027 DOI: 10.1016/j.metabol.2013.04.003] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2012] [Revised: 03/13/2013] [Accepted: 04/02/2013] [Indexed: 01/31/2023]
Abstract
Mass spectrometric approaches have been fundamental to the identification of metabolites associated with steroid hormones, yet this topic has not been reviewed in depth in recent years. To this end, and given the increasing relevance of liquid chromatography-mass spectrometry (LC-MS) studies on steroid hormones and their metabolites, the present review addresses this subject. This review provides a timely summary of the use of various mass spectrometry-based analytical techniques during the evaluation of steroidal biomarkers in a range of human disease settings. The sensitivity and specificity of these technologies are clearly providing valuable new insights into breast cancer and cardiovascular disease. We aim to contribute to an enhanced understanding of steroid metabolism and how it can be profiled by LC-MS techniques.
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Affiliation(s)
- Maria João Gouveia
- Center for the Study of Animal Science, ICETA, University of Porto
- INSA, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal
| | - Paul J. Brindley
- George Washington University School of Medicine & Health Sciences – Department of Microbiology, Immunology and Tropical Medicine, Ross Hali, 20037 Washington, DC, USA
| | - Lúcio Lara Santos
- Experimental Therapeutics and Pathology Research Group - IPO-Porto, Portuguese Institute of Oncology Francisco Gentil, Rua Dr António Bernardino de Almeida, 4200-072 Porto, Portugal
| | - José Manuel Correia da Costa
- Center for the Study of Animal Science, ICETA, University of Porto
- INSA, Rua Alexandre Herculano, 321, 4000-055 Porto, Portugal
| | - Paula Gomes
- CIQUP, Chemistry and Biochemistry Department, Faculty of Sciences, University of Porto, Rua Campo Alegre, 687, 4169-007 Porto, Portugal
| | - Nuno Vale
- CIQUP, Chemistry and Biochemistry Department, Faculty of Sciences, University of Porto, Rua Campo Alegre, 687, 4169-007 Porto, Portugal
- Corresponding author: CIQUP, Chemistry and Biochemistry Department, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 687, P-4169-007 Porto, Portugal Tel.: +351 220402567; fax: + 351 220402563,
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Abstract
The multifaceted field of metabolomics has witnessed exponential growth in both methods development and applications. Owing to the urgent need, a significant fraction of research investigations in the field is focused on understanding, diagnosing and preventing human diseases; hence, the field of biomedicine has been the major beneficiary of metabolomics research. A large body of literature now documents the discovery of numerous potential biomarkers and provides greater insights into pathogeneses of numerous human diseases. A sizable number of findings have been tested for translational applications focusing on disease diagnostics ranging from early detection, to therapy prediction and prognosis, monitoring treatment and recurrence detection, as well as the important area of therapeutic target discovery. Current advances in analytical technologies promise quantitation of biomarkers from even small amounts of bio-specimens using non-invasive or minimally invasive approaches, and facilitate high-throughput analysis required for real time applications in clinical settings. Nevertheless, a number of challenges exist that have thus far delayed the translation of a majority of promising biomarker discoveries to the clinic. This article presents advances in the field of metabolomics with emphasis on biomarker discovery and translational efforts, highlighting the current status, challenges and future directions.
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Affiliation(s)
- G A Nagana Gowda
- Northwest Metabolomics Research Center, Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA 98109, USA
| | - D Raftery
- Northwest Metabolomics Research Center, Department of Anesthesiology and Pain Medicine, University of Washington, Seattle, WA 98109, USA; Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, WA 98109, USA
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50
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Identification and assay of underivatized urinary acylcarnitines by paper spray tandem mass spectrometry. Anal Bioanal Chem 2013; 405:8267-76. [DOI: 10.1007/s00216-013-7232-3] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2013] [Revised: 07/04/2013] [Accepted: 07/08/2013] [Indexed: 11/30/2022]
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