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MetabolomicsUntargeted LC-MS metabolomics for the analysis of micro-scaled extracellular metabolites from hepatocytes
Metabolome analysis in micro physiological models is a challenge due to the low volume of cell culture medium (CCM). Here, we report a LC-MS-based untargeted metabolomics protocol for the detection of hepatocyte extracellular metabolites from micro-scale samples of CCM. Using a single LC-MS method w...
2021-01-04 | MTBLS1794 | MetaboLights
MetabolomicsHigh-Precision Automated Workflow for Urinary Untargeted Metabolomic Epidemiology
Urine is a non-invasive biofluid that is rich in polar metabolites and well-suited for metabolomic epidemiology. However, due to individual variability in health and hydration status, the physiological concentration of urine can differ >15-fold, which can pose major challenges in untargeted LC-MS me...
2021-06-10 | MTBLS2295 | MetaboLights
MetabolomicsCorrelation-based Deconvolution (CorrDec) to generate high-quality MS2 spectra from data-independent acquisition in multi-sample studies (Urine assay)

Data-independent acquisition mass spectrometry (DIA-MS) is essential for information-rich spectral annotations in untargeted metabolomics. However, the acquired MS2 spectra are highly complex, posing significant annotation challenges. We have developed a correlation-based deconvolution (CorrDec) ...

2020-07-13 | MTBLS816 | MetaboLights
MetabolomicsSpatiotemporal determination of metabolite activities in the corneal epithelium on a chip
The corneal epithelial barrier maintains the metabolic activities of the ocular surface by regulating membrane transporters and metabolic enzymes responsible for the homeostasis of the eye as well as the pharmacokinetic behavior of drugs. Despite its importance, no established biomimetic in vitro me...
2021-07-13 | MTBLS2274 | MetaboLights
MetabolomicsCreating a Reliable Mass Spectral–Retention Time Library for All Ion Fragmentation-Based Metabolomics

Accurate metabolite identification remains one of the primary challenges in a metabolomics study. A reliable chemical spectral library increases the confidence in annotation, and the availability of raw and annotated data in public databases facilitates the transfer of Liquid chromatography coupl...

2019-10-30 | MTBLS1040 | MetaboLights
MetabolomicsIndividual variability in human blood metabolites identifies age-related differences (30 persons, RBC data)
Metabolites present in human blood document individual physiological states influenced by genetic, epigenetic, and life-style factors. Using high-resolution liquid chromatography-mass spectrometry (LC-MS), we performed non-targeted, quantitative metabolomics analysis in blood of 15 young (29±4 yr) a...
2016-03-10 | MTBLS267 | MetaboLights
MetabolomicsIndividual variability in human blood metabolites identifies age-related differences (30 persons, plasma data)
Metabolites present in human blood document individual physiological states influenced by genetic, epigenetic, and life-style factors. Using high-resolution liquid chromatography-mass spectrometry (LC-MS), we performed non-targeted, quantitative metabolomics analysis in blood of 15 young (29±4 yr) a...
2016-03-10 | MTBLS266 | MetaboLights
MetabolomicsIndividual variability in human blood metabolites identifies age-related differences (30 persons, whole blood data)
Metabolites present in human blood document individual physiological states influenced by genetic, epigenetic, and lifestyle factors. Using high-resolution liquid chromatography-mass spectrometry (LC-MS), we performed nontargeted, quantitative metabolomics analysis in blood of 15 young (29 ± 4 y of ...
2016-03-10 | MTBLS265 | MetaboLights
MetabolomicsIndividual variability in human blood metabolites identifies age-related differences - constant blood metabolite levels during 24h in 4 individuals
Metabolites present in human blood document individual physiological states influenced by genetic, epigenetic, and lifestyle factors. Using high-resolution liquid chromatography-mass spectrometry (LC-MS), we performed nontargeted, quantitative metabolomics analysis in blood of 15 young (29 ± 4 y of ...
2016-03-10 | MTBLS264 | MetaboLights
MetabolomicsIndividual variability in human blood metabolites identifies age-related differences - determination of coefficients of variation for each metabolite (3 injections of same sample, 3 independent sample preparations)
Metabolites present in human blood document individual physiological states influenced by genetic, epigenetic, and lifestyle factors. Using high-resolution liquid chromatography-mass spectrometry (LC-MS), we performed nontargeted, quantitative metabolomics analysis in blood of 15 young (29 ± 4 y of ...
2016-03-10 | MTBLS263 | MetaboLights
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