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MetabolomicsPositional Enrichment by Proton Analysis (PEPA): a One-Dimensional 1H-NMR Approach for 13C Stable Isotope Tracer Studies in Metabolomics
A novel metabolomics approach for NMR-based stable isotope tracer studies called PEPA is presented, and its performance validated using human cancer cells. PEPA detects the position of carbon label in isotopically enriched metabolites and quantifies fractional enrichment by indirect determination of...
2017-02-23 | MTBLS247 | MetaboLights
MetabolomicsMetabolome and proteome changes in skeletal muscle and blood of pre-weaning calves fed leucine and threonine supplemented diets

In pre-weaning calves, both leucine and threonine play important roles in growth and muscle metabolism. In this study, metabolomics, proteomics and clinical chemistry were used to assess the effects of leucine and threonine supplementation added to milk replacer on 14 newborn Holstein male calves...

2020-02-20 | MTBLS1045 | MetaboLights
MetabolomicsElucidating dynamic anaerobe metabolism with HRMAS 13C NMR and genome-scale modeling
Not available
ORGANISM(S): Clostridioides difficile 
ST002433 | MetabolomicsWorkbench
Metabolomics13(S)-HODE Generated by Rhizopus microsporus var. rhizopodiformis Aggravates MASLD via the Elane-PAR2-SREBP-1c Axis
Abstract Objective:Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) poses a major public health challenge. Increasing data suggest a role of gut fungi in liver disease, yet their diversity and biological function in MASLD are still poorly understood. Methods:Internal transcribed spac...
2026-08-30 | MTBLS15501 | MetaboLights
Metabolomics13(S)-HODE Generated by Rhizopus microsporus var. rhizopodiformis Aggravates MASLD via the Elane-PAR2-SREBP-1c Axis
Abstract Objective:Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) poses a major public health challenge. Increasing data suggest a role of gut fungi in liver disease, yet their diversity and biological function in MASLD are still poorly understood. Methods:Internal transcribed spac...
2026-09-01 | MTBLS15516 | MetaboLights
Metabolomics13(S)-HODE Generated by Rhizopus microsporus var. rhizopodiformis Aggravates MASLD via the Elane-PAR2-SREBP-1c Axis
Abstract Objective:Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD) poses a major public health challenge. Increasing data suggest a role of gut fungi in liver disease, yet their diversity and biological function in MASLD are still poorly understood. Methods:Internal transcribed spac...
2026-09-14 | MTBLS15643 | MetaboLights
ProteomicsRuegeria pomeroyi growth curve
The ubiquitous heterotrophic marine bacterium, Rugeria pomeroyi, was experimentally cultured under both environmentally realistic carbon conditions and with a tracer-level addition of 13C-labeled leucine. Bacterial protein biosynthesis was tracked through exponential and stationary growth phases. Th...
ORGANISM(S): Ruegeria pomeroyi 
2019-07-31 | PXD008661 | Pride
Ruegeria pomeroyi Growth curve Bacteria 13c leucine 
ProteomicsColwellia psychrerythraea Cp34H 13C-Leucine uptake over 8 days at -5Celcius to track new protein synthesis at subzero temperatures
Colwellia psychrerythraea Cp34H 13C-Leucine uptake over 8 days at -5Celcius to track new protein synthesis at subzero temperatures Few halophilic strains have been examined in detail for their culturability and metabolic activity at subzero temperatures, within the ice matrix, over the longer term. ...
ORGANISM(S): Colwellia psychrerythraea Bacteria 
2025-01-17 | PXD059470 | Pride
Astrobiology Marine Stable isotope probing Artic Marine psychrophile Ocean Arctic 
UnknownLabeling of Bifidobacterium longum cells with 13C-substituted leucine for quantitative proteomic analyses.
Not available
S-EPMC2042066 | biostudies-literature
MetabolomicsA Comprehensive and Ultrasensitive Isotope Calibration Method for Soil Amino Compounds Using Orbitrap Mass Spectrometry
Bound amino compounds (amino acid and amino sugar polymers) comprise a significant proportion (~40%) of soil organic nitrogen and therefore represent an essential source of nitrogen for plant and microbial nutrition. The analysis of their content and isotope enrichment still represents a significant...
2025-06-16 | MTBLS12550 | MetaboLights
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