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题名: Practical approach for the identification and isomer elucidation of biomarkers detected in a metabonomic study for the discovery of individuals at risk for diabetes by integrating the chromatographic and mass spectrometric information
作者: Chen, Jing1;  Zhao, Xinjie1;  Fritsche, Jens2;  Yin, Peiyuan1;  Schmitt-Kopplin, Philippe3;  Wang, Wenzhao1;  Lu, Xin1;  Haring, Hans Ulrich4;  Schleicher, Erwin D.2;  Lehmann, Rainer2;  Xu, Guowang1
通讯作者: 许国旺
刊名: ANALYTICAL CHEMISTRY
发表日期: 2008-02-15
DOI: 10.1021/ac702089h
卷: 80, 期:4, 页:1280-1289
收录类别: SCI
文章类型: Article
部门归属: 18
项目归属: 1808
产权排名: 1;1
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical
研究领域[WOS]: Chemistry
英文摘要: Sensitive and high-resolution chromatographic-driven metabonomomics studies experienced major growth with the aid of new analytical technologies and bioinformatics software packages. Hence, data collections by LC-MS and data analyses by multivariate statistical methods are by far the most straightforward steps, and the detection of biomarker candidates can easily be achieved. However, the unequivocal identification of the detected metabolite candidates, including isomer elucidation, is still a crux of current metabonomics studies. Here we present a comprehensive analytical strategy for the elucidation of the molecular structure of metabolite biomarkers detected in a metabonomics study, exemplified analyzing spot urine of a cohort of healthy, insulin sensitive subjects and clinically well characterized prediabetic, insulin resistant individuals. An integrated approach of LC-MS fingerprinting, multivariate statistic analysis, LC-MS(n) experiments, micro preparation, FTICR-MS, GC retention index, database search, and generation of an isotope labeled standard was applied. Overall, we could demonstrate the efficiency of our analytical approach by the unambiguous elucidation of the molecular structure of an isomeric biomarker candidate detected in a complex human biofluid. The proposed strategy is a powerful new analytical tool, which will allow the definite identification of physiologically important molecules in metabonomics studies from basic biochemistry to clinical biomarker discovery.
关键词[WOS]: IMPAIRED GLUCOSE-TOLERANCE ;  INSULIN-RESISTANT MICE ;  METABOLITE IDENTIFICATION ;  HYDROXYHIPPURIC ACID ;  GAS-CHROMATOGRAPHY ;  DRUG METABOLITES ;  SALICYLURIC ACID ;  ORGANIC-ACIDS ;  HUMAN URINE ;  LIFE-STYLE
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000253165400049
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/100423
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Natl Chromatograp RA Ctr, Dalian 116023, Peoples R China
2.Univ Tubingen Hosp, Cent Lab, Div Clin Chem & Pathobiochem, D-72076 Tubingen, Germany
3.GSF Natl Res Ctr Environm & Hlth, Inst Ecol Chem, D-85764 Neuherberg, Germany
4.Univ Tubingen Hosp, Dept Internal Med 4, D-72076 Tubingen, Germany

Recommended Citation:
Chen, Jing,Zhao, Xinjie,Fritsche, Jens,et al. Practical approach for the identification and isomer elucidation of biomarkers detected in a metabonomic study for the discovery of individuals at risk for diabetes by integrating the chromatographic and mass spectrometric information[J]. ANALYTICAL CHEMISTRY,2008,80(4):1280-1289.
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