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MetabolomicsA combined direct infusion/reversed phase chromatography – high resolution mass spectrometry workflow for accurate absolute lipid quantification with 13C- internal standards
We propose a fully automated novel workflow for lipidomics based on flow injection, followed by liquid chromatography-high-resolution mass spectrometry (FI/LC-HRMS). The workflow combined in-depth characterization of the lipidome achieved via reversed-phase LC-HRMS with absolute quantification by us...
2021-07-01 | MTBLS1876 | MetaboLights
MetabolomicsComprehensive High-Resolution Multiple-Reaction Monitoring Mass Spectrometry for Targeted Eicosanoid Assays
Eicosanoids comprise a class of bioactive lipids derived from a unique group of essential fatty acids that mediate a variety of important physiological functions. Owing to the structural diversity of these lipids, their analysis in biological samples is often a major challenge. Advancements in mass ...
2018-06-26 | MTBLS641 | MetaboLights
MetabolomicsCoupling between high-resolution mass spectrometry and focalized data-analysis methods provides the identification of new putative glycosidic non-anthocyanic flavonoids in grape

INTRODUCTION: The biochemical diversity of flavonoids is based on glycosylation, methylation, acylation, and many other modifications of the flavonoid backbone. Liquid chromatography coupled to high-resolution mass spectrometry demonstrated to be a powerful approach to gain new i...

2022-06-29 | MTBLS4202 | MetaboLights
MetabolomicsComparison of singlequad and Orbitrap mass analyzer coupled to gas chromatography reveals potential of high resolution GC MS for untargeted metabolomics

The development of improved spectrometers and supporting computational tools is expected to eventually enable the rapid annotation of whole metabolomes. However, rarely are novel mass spectrometers directly compared to the previously used ones in the field of metabolomics, thus preventing researc...

2020-01-24 | MTBLS1104 | MetaboLights
MetabolomicsA database of high-resolution MS/MS spectra for lichen metabolites

While analytical techniques in natural products research massively shifted to liquid chromatography-mass spectrometry, lichen chemistry remains reliant on limited analytical methods, Thin Layer Chromatography being the gold standard. To meet the modern standards of metabolomics within lichenochem...

2019-07-22 | MTBLS999 | MetaboLights
MetabolomicsAssessing the impact of nitrogen supplementation in oats across multiple growth locations and years with targeted phenotyping and high-resolution metabolite profiling approaches
Oats (Avena sativa L.) are a healthy food, being high in dietary fibre (e.g. β-glucans), antioxidants, minerals, and vitamins. Understanding the effect of variety and crop management on nutritional quality is important. The response of four oat varieties to increased nitrogen levels was investigated...
2021-04-26 | MTBLS1801 | MetaboLights
MetabolomicsMetabolomic profiling of Campylobacter jejuni with resistance gene ermB by ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry and tandem quadrupole mass spectrometry
The metabolome changes of Campylobacter jejuni with resistant gene ermB remain unclear. Here, we described an untargeted metabolomic workflow based on ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry to investigate the metabolites perturbations mediated by erm...
2018-08-07 | MTBLS496 | MetaboLights
MetabolomicsHigh-resolution LC-MS/MS lipidomics characterization of wild-type and ATG7-deficient mouse renal proximal tubule cells
This study provides an untargeted lipidomics investigation of ATG7-deficient (cKO) mouse renal proximal tubule cells compared to wild-type (WT) controls to evaluate lipidomic alterations associated with autophagy deficiency. Lipids were extracted from cell culture wells using a single-phase isopropa...
2026-09-30 | MTBLS15861 | MetaboLights
MetabolomicsHigh-performance nano-flow liquid chromatography column combined with high- and low-collision energy data-independent acquisition enables targeted and discovery identification of modified ribonucleotides by mass spectrometry (Data-independent acquisition)

Over 170 post-transcriptional RNA modifications have been described and are common in all kingdoms of life. These modifications range from methylation to complex chemical structures, with methylation being the most abundant. RNA modifications play a key role in RNA folding and function and their ...

2023-10-26 | MTBLS2959 | MetaboLights
MetabolomicsHigh-performance nano-flow liquid chromatography column combined with high- and low-collision energy data-independent acquisition enables targeted and discovery identification of modified ribonucleotides by mass spectrometry (Mixed-mode column chromatography)

Over 170 post-transcriptional RNA modifications have been described and are common in all kingdoms of life. These modifications range from methylation to complex chemical structures, with methylation being the most abundant. RNA modifications play a key role in RNA folding and function and their ...

2023-10-26 | MTBLS2497 | MetaboLights
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