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Abstract Title:

Gastrodin Ameliorates Oxidative Stress and Proinflammatory Response in Nonalcoholic Fatty Liver Disease through the AMPK/Nrf2 Pathway.

Abstract Source:

Phytother Res. 2016 Mar ;30(3):402-11. Epub 2015 Dec 4. PMID: 26634892

Abstract Author(s):

Li-Li Qu, Bin Yu, Zheng Li, Wen-Xiao Jiang, Jian-Dong Jiang, Wei-Jia Kong

Article Affiliation:

Li-Li Qu

Abstract:

This study was designed to investigate the antioxidative, antiinflammatory and metabolism-regulating effects of gastrodin (GSTD) in the treatment of nonalcoholic fatty liver disease (NAFLD). Oleic acid (OA) was used to induce steatosis in HL-7702 cells; a high-fat or high-fat and high-cholesterol diet was used to induce NAFLD in mice and rats. Our results showed that GSTD significantly increased hepatic superoxide dismutase (SOD) but decreased reactive oxygen species (ROS)/malondialdehyde (MDA) and reduced the mRNA levels of proinflammatory cytokines both in vitro and in vivo. GSTD promoted the phosphorylation of nuclear factor erythroid-2-related factor-2 (Nrf2) at serine (Ser) 40, stimulated its nuclear translocation and increased hepatic expression of heme oxygenase-1 (HO-1). GSTD activated AMP-activated protein kinase (AMPK), suppressed hepatic steatosis, lowered serum triglyceride (TG)/glucose and decreased body weight gain in animals with NAFLD. The stimulating effects of GSTD on the Nrf2 pathway as well as its antioxidative/antiinflammatory activities were abolished by compound C in OA-treated HL-7702 cells. In summary, our results demonstrate that GSTD activates the AMPK/Nrf2 pathway, ameliorates oxidative stress/proinflammatory response and improves lipid metabolism in NAFLD. Our findings may support the future clinical application of GSTD for the treatment of NAFLD to reduce hepatic steatosis, oxidative stress and proinflammatory response.

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Sayer Ji
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