Influences of dietary Eucommia ulmoides leaf extract on the hepatic lipid metabolism, inflammation response, intestinal antioxidant capacity, intestinal microbiota, and disease resistance of the channel catfish (Ictalurus punctatus)

文献类型： 外文期刊

第一作者： Zhang, Feng-Li

作者： Zhang, Feng-Li;Hao, Qiang;Zhang, Qing-shuang;Zhou, Zhi-Gang;Lv, Hui-Yuan;Yang, Ya-Lin;Chao-Ran;Zhang, Zhen

作者机构：

关键词： Eucommia ulmoides leaf Extract; Antioxidant; Inflammation; Immunity; Gut microbiota; Disease resistance; Eucommia ulmoides leaf Extract; Antioxidant; Inflammation; Immunity; Gut microbiota; Disease resistance

期刊名称：FISH & SHELLFISH IMMUNOLOGY （ 影响因子：4.622； 五年影响因子：4.799 ）

ISSN： 1050-4648

年卷期： 2022 年 123 卷

页码：

收录情况： SCI

摘要： The purpose of the study was to investigate the effects of Eucommia ulmoides leaf extract (ELE) on the common occurrence of liver steatosis, chronic inflammation, oxidative stress, disturbance of gut microbiota, and disease susceptibility in high-fat diet-fed channel catfish. Channel catfish fed three diets, including a high-fat diet (11% crude fat) and ELE-supplemented diets containing 1%o or 2%o ELE for 4 weeks. The results showed the contents of liver triacylglycerol of 1%o and 2%o ELE groups were reduced, and ELE treatments decreased the expression of lipogenesis related genes (srebp-1c, ppar gamma, and acc-1), and increased the expression of lipolysis related genes (ppar alpha). In addition, the supplementation of ELE improved the inflammatory response of the liver and intestine. ELE could improve the destruction of intestinal morphology structure and increase the expression level of hif-1a and tight junction proteins (Occludin, Claudin2, Claudin15). 2%o ELE significantly enhanced the antioxidant capacity of intestine by increasing the activity of SOD enzyme. Moreover, the supplement of ELE significantly increased the abundance of Cetobacterium and Romboutsia (p < 0.05). Compared with the control group, the expression of immune factor nf-kappa b had a significant decrease, and il-1 beta showed a tendency to decrease in the ELE supplement groups after pathogenic bacteria challenge. In conclusion, the ELE alleviated fatty liver disease and inflammation response, improved the oxidative capacity and physiological structure of intestine, and improved the structure of intestinal microbiota and disease resistance in HFD-fed channel catfish.

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