Micronutrients-fortified rapeseed oil improves hepatic lipid accumulation and oxidative stress in rats fed a high-fat diet

文献类型： 外文期刊

第一作者： Xu, Jiqu

作者： Xu, Jiqu;Deng, Qianchun;Huang, Qingde;Yang, Jin'e;Huang, Fenghong;Xu, Jiqu;Deng, Qianchun;Huang, Qingde;Yang, Jin'e;Huang, Fenghong;Zhou, Xiaoqi;Gao, Hui;Chen, Chang;Ma, Jing;Wan, Zhengyang

作者机构：

关键词： Rapeseed oil;Polyphenols;Tocopherols;Phytosterols;Lipid accumulation;Oxidant stress

期刊名称：LIPIDS IN HEALTH AND DISEASE （ 影响因子：3.876； 五年影响因子：4.047 ）

ISSN： 1476-511X

年卷期： 2013 年 12 卷

页码：

收录情况： SCI

摘要： Intake of high-fat diet is associated with increased fatty livers. Hepatic lipid accumulation and oxidative stress are key pathophysiological mechanisms in this disease. Micronutrients polyphenols, tocopherols and phytosterols in rapeseed exert potential benefit to hepatoprotection, but most of these micronutrients are removed by the traditional refining process. The purpose of the present study was to determine whether rapeseed oil fortified with these micronutrients can decrease hepatic lipid accumulation and oxidative stress induced by high-fat diet. Sprague-Dawley rats received rodent diet contained 20% fat whose source was refined rapeseed oil (RRO) or fortified RRO with low, middle and high quantities of these micronutrients for 10 weeks. Intake of RRO caused a remarkable hepatic steatosis. Micronutrients supplementation was effective in reducing steatosis as well as total triglyceride and total cholesterol contents in liver. These micronutrients also significantly increased hepatic antioxidant defense capacities, as evaluated by the significant elevation in the activities of SOD and GPx as well as the level of GSH, and the significant decline in lipid peroxidation. These findings suggest that rapeseed oil fortified with micronutrients polyphenols, tocopherols and phytosterols may contribute to prevent fatty livers such as nonalcoholic fatty liver disease by ameliorating hepatic lipid accumulation and oxidative stress.

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