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Abstract Title:

Fisetin Alleviates Hepatic and Adipocyte Fibrosis and Insulin Resistance in Diet-Induced Obese Mice.

Abstract Source:

J Med Food. 2020 Aug 26. Epub 2020 Aug 26. PMID: 32856978

Abstract Author(s):

Myung-Sook Choi, Ji-Young Choi, Eun-Young Kwon

Article Affiliation:

Myung-Sook Choi

Abstract:

The present study aimed to investigate the protective role of the flavonoid fisetin (FI) on inflammation-mediated metabolic diseases, especially tissue fibrosis and insulin resistance (IR) in high-fat diet (HFD)-induced obese mice. C57BL/6J mice were fed with normal-fat diet, HFD (40 kcal% fat), or HFD +0.02% (w/w) FI for 16 weeks. Dietary FI supplementation improved hepatic steatosis by restricting lipogenesis, while promoting lipolysis in the liver. FI also prevented adiposity via an increase in the expression of genes involved in FA oxidation and a decrease in the expression of genes involved in lipogenesis in white adipose tissue. In addition, FI increased brown adipose tissue (BAT) and skeletal muscle weights, thermogenic gene mRNA expression in BAT, and tricarboxylic acid cycle-related gene expression in skeletal muscle, which may be linked to the prevention of nonalcoholic fatty liver disease as well as adiposity. Moreover, FI supplementation decreased excessive reactive oxygen species production by increasing paraoxonase activity, adipokine dysregulation, proinflammatory cytokine production, and extracellular matrix amassment in the liver. FI supplementation ameliorated IR, in part, by normalizing pancreatic islet dysfunction, and it declined hepatic gluconeogenesis and proinflammatory responses. Taken together, the present findings indicate that FI can protect against HFD-induced inflammation-mediated disorders, including fibrosis and IR.

Study Type : Animal Study

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