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. 2024 Nov;68(21):e2400290.
doi: 10.1002/mnfr.202400290. Epub 2024 Oct 13.

Ruminant Trans Fatty Acid Intake Modulates Inflammation Pathways in the Adipose Tissue Transcriptome of C57BL/6 Mice

Farzad Mohammadi  1   2 , Charles Joly Beauparlant  1 , Stéphanie Bianco  1 , Arnaud Droit  1 , Nicolas Bertrand  1   3 , Iwona Rudkowska  1   2
Affiliations

Ruminant Trans Fatty Acid Intake Modulates Inflammation Pathways in the Adipose Tissue Transcriptome of C57BL/6 Mice

Farzad Mohammadi et al. Mol Nutr Food Res. 2024 Nov.

Abstract

Scope: The study aims to analyze transcriptomic profiles in adipose tissues postconsumption of elaidic acid (EA; trans-18:1n-9) and trans-palmitoleic acid (TPA; trans-16:1n-7), elucidating their different effects on inflammation and glucose metabolism.

Methods and results: Twenty C57BL/6 mice are divided into four groups. Each group receives one of the following formulations in drinking water: lecithin nanovesicles, nanovesicles containing either lecithin with EA or TPA (86:14 w/w), or water (control) for 28 days with a regular fat diet (18% calories from fat). Total RNA is extracted, and paired-end sequencing is performed. TPA intake alters the expression of 351 genes compared to EA intake, including 11 downregulated and 340 upregulated genes (fold change [FC] >1.5, p < 0.05). TPA compares to EA upregulated: Slc5a8, Lcn2, Csf3, Scube1, Mapk13, Bdkrb2, Ctla2a, Slc2a1, Oas3, Cx3cl1, Oas2, Nlrp6, Pycard, Cyba, Ddr1, and Prkab1 and downregulated Fas gene. These genes are related to the NOD-like receptor, lipid and atherosclerosis, IL-17 signaling, TNF, nonalcoholic fatty liver disease, cytokine-cytokine receptor interaction, adipocytokine, glucagon, insulin resistance, and inflammatory mediator regulation of TRP channels signaling.

Conclusion: TPA intake has a distinct impact on the regulation of inflammation and diabetes-related pathways in adipose tissue compared to EA.

Keywords: adipose tissue; bioinformatics; glucose metabolism; inflammation; trans fats; transcriptomics; type 2 diabetes.

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