Abstract

This study investigated the effects of blended oils with different n-6/n-3 polyunsaturated fatty acid (PUFA) ratios on the metabolic disorders and hepatic steatosis in high-fat diet-fed rats. The 1:1 group had significantly lower serum low-density lipoprotein cholesterol (LDL-C), total cholesterol (TC), triglycerides, high-density lipoprotein cholesterol (HDL-C), and lipoprotein lipase (LPL) levels than those of the Lard group. The 5:1 group had significantly lower serum LDL-C, LPL, and adiponectin (ADP) than those in the Lard group. Serum LDL-C, angiotensin II (Ang II), endothelin-1, LPL and ADP levels in the 1:1 and 5:1 groups were significantly lower than those in the normal control group. The 5:1 group had significantly lower serum ADP, Ang II, LPL and resistin levels than those in the 20:1 group. The 20:1 group had significantly higher serum TC, LDL-C, HDL-C, nitric oxide (NO), 3-nitrotyrosine, free fatty acid and LPL levels than those in the 1:1 ratio group. Blended oils with a low n-6/n-3 PUFA ratio improved metabolic disorders and hepatic steatosis by regulating lipid metabolism, adipokines, endothelial cell function, and liver lipid metabolism. Conversely, a high n-6/n-3 PUFA ratio had adverse effects on metabolic profiles in high-fat diet-fed rats.

Full Text
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