Cell metabolism Scientific Publications

Latest publication 06/27/2018

Genetic Regulation of Plasma Lipid Species and Their Association with Metabolic

The genetic regulation and physiological impact of most lipid species are unexplored. Here, we profiled 129 plasma lipid species across 49 strains...

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    [title] => Genetic Regulation of Plasma Lipid Species and Their Association with Metabolic 
    [paragraph] => Genetic Regulation of Plasma Lipid Species and Their Association with Metabolic Phenotypes
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Authors
P Jha, MT McDevitt, R Gupta, PM Quiros, EG Williams, K Gariani, MB Sleiman, L Diserens, A Jochem, A Ulbrich, JJ Coon, J Auwerx, DJ Pagliarini

 Lab
Laboratory of Integrative and Systems Physiology, École Polytchnique Fédérale de Lausanne, Lausanne 1015, Switzerland
Journal
Cell Systems
Abstract
The genetic regulation and physiological impact of most lipid species are unexplored. Here, we profiled 129 plasma lipid species across 49 strains of the BXD mouse genetic reference population fed either chow or a high-fat diet. By integrating these data with genomics and phenomics datasets, we elucidated genes by environment (diet) interactions that regulate systemic metabolism. We found quantitative trait loci (QTLs) for _94% of the lipids measured. Several QTLs harbored genes associated with blood lipid levels and abnormal lipid metabolism in human genome-wide association studies. Lipid species from different classes provided signatures of metabolic health, including seven plasma triglyceride species that associated with either healthy or fatty liver. This observation was further validated in an independent mouse model of non-alcoholic fatty liver disease (NAFLD) and in plasma from NAFLD patients. This work provides a resource to identify plausible genes regulating the measured lipid species and their association with metabolic traits.
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