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Article Publish Status: FREE
Abstract Title:

Astragaloside alleviates alcoholic fatty liver disease by suppressing oxidative stress.

Abstract Source:

Kaohsiung J Med Sci. 2021 May 11. Epub 2021 May 11. PMID: 33973356

Abstract Author(s):

Zhi-Bin Jiang, Jie Gao, Yi-Hui Chai, Wen Li, Yun-Feng Luo, Yun-Zhi Chen

Article Affiliation:

Zhi-Bin Jiang

Abstract:

Alcoholic fatty liver disease (AFLD) is the most common liver disease and can progress to fatal liver cirrhosis and carcinoma, affecting millions of patients worldwide. The functions of astragaloside on the cardiovascular system have been elucidated. However, its role in AFLD is unclear. Ethanol-treated AML-12 cells were used as a cell model of alcoholic fatty liver. Real-time quantitative reverse transcription-PCR and Western blotting detected genes and proteins expressions. Reactive oxygen species (ROS), triglyceride, total cholesterol, low-density lipoprotein, albumin, ferritin, bilirubin, superoxide dismutase, aspartate aminotransferase (AST), and alanine aminotransferase (ALT) were examined using commercial kits. Lipid accumulation was assessed by Oil red O staining. MTT and flow cytometry measured cell viability and apoptosis. JC-1 was used to analyze mitochondrial membrane potential. A rat model of AFLD was established by treating rats with ethanol. Astragaloside suppressed ethanol-induced lipid accumulation, oxidative stress, and the production of AST and ALT in AML-12 cells. Ethanol induced TNF-α and reduced IL-10 expression, which were reversed by astragaloside. Ethanol promoted Bax expression and cytochrome C release and inhibited Bcl-2 and ATP expression. Astragaloside hampered these apoptosis effects in AML-12 cells. Impaired mitochondrial membrane potential was recovered by astragaloside. However, all these astragaloside-mediated beneficial effects were abolished by the ROS inducer pyocyanin. Ethanol-induced activation of NF-κB signaling was suppressed by astragaloside in vitro and in vivo, suggesting that astragaloside inhibited oxidative stress by suppressing the activationof NF-κB signaling, thus improving liver function and alleviating AFLD in rats. Our study elucidates the pharmacological mechanism of astragaloside and provides potential therapeutic strategies for AFLD.

Study Type : Animal Study, In Vitro Study

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