Lowering the dietary omega-6: omega-3 does not hinder nonalcoholic fatty-liver disease development in a murine model (original) (raw)

Nutrition research (New York, N.Y.), 2015

Abstract

It is hypothesized that a high dietary n-6:n-3 (eg, 10-20:1) is partly responsible for the rise in obesity and related health ailments. However, no tightly controlled studies using high-fat diets differing in the n-6:n-3 have tested this hypothesis. The aim of the study was to determine the role that the dietary n-6:n-3 plays in non-alcoholic fatty-liver disease (NAFLD) and colitis development. We hypothesized that reducing the dietary n-6:n-3 would hinder the development of NAFLD and colitis. Male C57BL/6 J mice were fed high-fat diets, differing in the n-6:n-3 (1:1, 5:1, 10:1, 20:1), for 20 weeks. Gas chromatography-mass spectrometry was used to analyze the hepatic phospholipid arachidonic acid (AA):eicosapentaenoic acid and AA:docosahexaenoic acid. Hepatic metabolism, inflammatory signaling, macrophage polarization, gene expression of inflammatory mediators, oxidative and endoplasmic reticulum stress, and oxidative capacity were assessed as well as colonic inflammatory signaling,...

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