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- W4224273602 endingPage "109014" @default.
- W4224273602 startingPage "109014" @default.
- W4224273602 abstract "Alpha linolenic acid (ALA) is an 18-carbon essential fatty acid found in plant-based foods and oils. While much attention has been placed on conversion of ALA to long chain polyunsaturated fatty acids, alternative routes of ALA metabolism exist and may lead to formation of other bioactive metabolites of ALA. The current study employed a non-targeted metabolomics approach to profile ALA metabolites that are significantly upregulated by ALA treatment. H4IIE hepatoma cells (n=3 samples per time point) were treated with 60 μM ALA or vehicle for 0, 0.25, 0.5, 1, 2, 3, 4, 6, 8, and 12 h. Samples were then extracted with methanol and analyzed using high-performance liquid chromatography/quadrupole time-of-flight mass spectrometry. We observed selective changes in ALA incorporation into phospholipid classes and subclasses over the 12 h following ALA treatment. While levels of specific molecular species of ALA-containing phosphatidylcholine, phosphatidylethanolamine, phosphatidylserine, and lysophospholipids were elevated with ALA treatment, others were not affected. Of the phospholipids that were increased, some (e.g., PC[18:3/18:1], PC[18:3/18:4], PE[18:3/18:2], PE[18:3/18:3]) were elevated almost immediately after exposure to ALA, while others [e.g., PE[18:1/18:3] PA[18:3/22:6], and PA[18:3/18:2]) were not elevated until several hours after ALA treatment. Overall, these results suggest that ALA incorporation into phospholipids is selective and support a metabolic hierarchy for ALA incorporation into specific phospholipids. Given the functionality of phospholipids based on their fatty acid composition, future studies will need to investigate the implications of ALA incorporation into specific phospholipids on cell function." @default.
- W4224273602 created "2022-04-26" @default.
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- W4224273602 date "2022-08-01" @default.
- W4224273602 modified "2023-10-02" @default.
- W4224273602 title "Patterns of alpha-linolenic acid incorporation into phospholipids in H4IIE cells" @default.
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- W4224273602 doi "https://doi.org/10.1016/j.jnutbio.2022.109014" @default.
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