NMR-based metabolomics is a powerful technique for elucidating the metabolic effects of diet through the identification and quantification of molecules present in tissues. This study utilizes time-domain processing of NMR data for robust, reproducible resonance characterization in the profiling of lipid species in heart and liver tissues of male and female animals subject to high fat diets with and without time-restriction. Results show triglyceride and fatty acid accumulation was associated with eating a high fat diet, but these effects were attenuated by time-restricted feeding. Hepatic lipids expressed a sexually dimorphic response, with higher concentrations of many lipids in female subjects.
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