2,3,5,4'-tetrahydroxystilbence-2-O-β-D-glucoside attenuates hepatic steatosis via IKKβ/NF-κB and Keap1-Nrf2 pathways in larval zebrafish.

With the improvement of people's living standards and the change of dietary habits, Non-alcoholic fatty liver disease (NAFLD) has gradually become one of the liver diseases that endanger human health around the world. However, there are no particularly effective drugs for NAFLD in the current market. Therefore, new drug candidates which could provide high efficacy and low toxicity are needed valuable for the prevention and treatment of NAFLD. 2,3,5,4'-tetrahydroxystilbence-2-O-β-D-glucoside (TSG) is extracted from Polygonum multiflorum Thunb., and has been widely used to treat a variety of chronic diseases in China. Recently, TSG has been reported to exert various biological activities in many studies, such as lipid-lowering, anti-inflammatory and anti-oxidant activities, which indicate that TSG may have the effect of improving NAFLD. After feeding 5% high cholesterol diet to 5 days post fertilization larval zebrafish for 10 days, hepatic steatosis larval zebrafish model was established successfully. Then the effect of TSG on the improvement of hepatic steatosis larval zebrafish was studied. Moreover, the potential mechanism of TSG on anti-NAFLD effect were studied using RT-qPCR methods from multiple pathogenesis aspects of lipogenesis, lipid-lowering, inflammation, and oxidant stress. To conclude, TSG attenuates hepatic steatosis via regulating lipid metabolism related pathway, IKKβ/NF-κB anti-inflammatory pathway and Keap1-Nrf2 anti-oxidant pathway.

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