Residential College | false |
Status | 已發表Published |
Tailored sensitivity reduction improves pattern recognition and information recovery with a higher tolerance to varied sample concentration for targeted urinary metabolomics | |
Zhixiang Yan; Ru Yan | |
2016-04-22 | |
Source Publication | Journal of Chromatography A |
ISSN | 18733778 00219673 |
Volume | 1443Pages:101-110 |
Abstract | Variation in total metabolite concentration among different samples has been a major challenge for urinary metabolomics. Here we investigated the potential of tailored sensitivity reduction of high abundance metabolites for improved targeted urinary metabolomics. Two levels of sensitivity reduction of the 21 predominant urinary metabolites were assessed by employing less sensitive transition or collision energy with level 1 (reduced 1) and 2 (reduced 2) exhibiting 30-90% and 2-20% of the optimal sensitivity, respectively. Five postacquisition normalization methods were compared including no normalization, probabilistic quotient normalization, and normalization to sample median, creatinine intensity, and total intensity. Normalization to total intensity with reduced 2 gave the best pattern recognition and information recovery with a higher tolerance to varied sample concentration. Pareto scaling could improve the performance of tailored sensitivity reduction (reduced 2) for targeted urinary metabolomics while data transformation and autoscaling were susceptible to varied sample concentration. Using controlled spike-in experiments, we demonstrated that tailored sensitivity reduction revealed more differentially expressed markers with higher accuracy than did the conventional optimal sensitivity. This was particularly true when the differences between the sample groups are small. This work also served as an introductory guideline for handling targeted metabolomics data using the open-source software MetaboAnalyst. |
Keyword | Targeted Metabolomics Tailored Sensitivity Reduction Multiple Reaction Monitoring Data Scaling Data Transformation Information Recovery Urinary Metabolomics |
DOI | 10.1016/j.chroma.2016.03.023 |
URL | View the original |
Indexed By | SCIE |
Language | 英語English |
WOS Research Area | Biochemistry & Molecular Biology ; Chemistry |
WOS Subject | Biochemical Research Methods ; Chemistry, Analytical |
WOS ID | WOS:000374362600013 |
Scopus ID | 2-s2.0-84977933374 |
Fulltext Access | |
Citation statistics | |
Document Type | Journal article |
Collection | Institute of Chinese Medical Sciences |
Corresponding Author | Ru Yan |
Affiliation | Institute of Chinese Medical Sciences, University of Macau |
First Author Affilication | Institute of Chinese Medical Sciences |
Corresponding Author Affilication | Institute of Chinese Medical Sciences |
Recommended Citation GB/T 7714 | Zhixiang Yan,Ru Yan. Tailored sensitivity reduction improves pattern recognition and information recovery with a higher tolerance to varied sample concentration for targeted urinary metabolomics[J]. Journal of Chromatography A, 2016, 1443, 101-110. |
APA | Zhixiang Yan., & Ru Yan (2016). Tailored sensitivity reduction improves pattern recognition and information recovery with a higher tolerance to varied sample concentration for targeted urinary metabolomics. Journal of Chromatography A, 1443, 101-110. |
MLA | Zhixiang Yan,et al."Tailored sensitivity reduction improves pattern recognition and information recovery with a higher tolerance to varied sample concentration for targeted urinary metabolomics".Journal of Chromatography A 1443(2016):101-110. |
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