DOI: 10.1101/509372Jan 2, 2019Paper

Meta-analysis of targeted metabolomics data from heterogeneous biological samples provides insights into metabolite dynamics

BioRxiv : the Preprint Server for Biology
Ho-Joon LeeCostas A Lyssiotis


Introduction: Mass spectrometry-based metabolomics coupled to liquid chromatography, or LC-MS metabolomics, has become the most popular tool for global metabolite abundance profiling to study metabolism. However, the physicochemical complexity of metabolites poses a major challenge for reliable measurements of metabolite abundance. One way to address the issue is to use multiple chromatographic methods to capture a greater range of molecular diversity. We previously developed a tandem mass spectrometry-based label-free targeted metabolomics analysis framework coupled to two distinct chromatographic methods, reversed-phase liquid chromatography (RPLC) and hydrophilic interaction liquid chromatography (HILIC), with dynamic multiple reaction monitoring (dMRM) for simultaneous detection of over 200 metabolites to study core metabolic pathways. Objectives: We aim to analyze a large-scale heterogeneous data compendium generated from our LC-MS/MS platform with both RPLC and HILIC methods to systematically assess measurement quality in biological replicate groups and to gain insights into metabolite dynamics across different biological conditions. Methods: Our metabolomics framework was applied in a wide range of experimental systems i...Continue Reading

Related Concepts

Case-Control Studies
Liquid Chromatography
Laboratory mice

Related Feeds

BioRxiv & MedRxiv Preprints

BioRxiv and MedRxiv are the preprint servers for biology and health sciences respectively, operated by Cold Spring Harbor Laboratory. Here are the latest preprint articles (which are not peer-reviewed) from BioRxiv and MedRxiv.

Cancer -Omics

A variety of different high-throughput technologies can be used to identify the complete catalog of changes that characterize the molecular profile of cohorts of tumor samples. Discover the latest insights gained from cancer 'omics' in this feed.