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Abstract Title:

Combinational applicaton of silybin and tangeretin attenuates the progression of non-alcoholic steatohepatitis (NASH) in mice via modulating lipid metabolism.

Abstract Source:

Pharmacol Res. 2019 Nov 6 ;151:104519. Epub 2019 Nov 6. PMID: 31706011

Abstract Author(s):

Rinkiko Suguro, Xiao-Cong Pang, Zhong-Wen Yuan, Si-Yao Chen, Yi-Zhun Zhu, Ying Xie

Article Affiliation:

Rinkiko Suguro

Abstract:

Silybin (SB) is widely used to treat chronic liver diseases, especially this compound is much efficient for the treatments of alcoholic and non-alcoholic steatohepatitis (NASH). However, low bioavailability seriously limits wide-application of SB in biomedical niche. Prior to this study, we found that tangeretin (TG) could remarkably increase the bioavailability of SB by the inhibition of efflux transporters, which encourges us to therapeutical discovery of SB and TG combitional use against NASH. Here, we revealed that TG is capable of improving hepatic-protective activity of SB in mice with NASH by interfering liver oxidative stress, inflammation, and lipid accumulation. In addition, TG was observed to enhance the exposural level of SB in the plasma and liver of mice. Our metabolome assay confirmed that amino acid metabolism and lipid biosynthesis mostly accounted for combitional use of SB and TG to teat NASH in mice, basically biosynthesis of unsaturated fatty acids was mostly affected. Notably, significant inhibitions in fatty acid generating and transporting proteins such as G6PD, FABP4, LPL and CD36/FAT, and cholesterol metabolism enzyme CYP27A1 as well as nuclear transcription factors FXR, PPAR-γ, and LXR were illustrated to decipher therapeutic mechanisms of SB and TG against experimental NASH. Taken together, the strategy based combitional use of SB and TG has a potential-capacity to treat NASH.

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