Wang XR, Lu YH, Zheng X, Xu WY, Chen YH. Effect of Yinshao powder on expression of transforming growth factor-β1 and β-catenin in hepatic fibrosis in rats.
Shijie Huaren Xiaohua Zazhi 2015;
23:2697-2706. [DOI:
10.11569/wcjd.v23.i17.2697]
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Abstract
AIM: To investigate the effect of traditional Chinese medicine Yinshao powder on the expression of transforming growth factor-β1 (TGF-β1) and β-catenin in hepatic fibrosis in rats to clarify the molecular mechanism of clearing heat, expelling damp and promoting blood circulation.
METHODS: Sixty adult male Wistar rats were divided randomly into six groups: a normal control group, a model group, low-, medium- and high-dose Yinshao powder groups and a colchicine group. Hepatic fibrosis was induced by giving subcutaneous injection of carbon tetrachloride, a high-fat diet and 30 mL/L alcohol for 16 wk. At the fifth week, Yinshao powder or colchicine was intragastrically administered. After 12 wk of treatment, the rats were sacrificed to measure serum levels of hyaluronidase (HA), type Ⅳ collagen, procollagen type Ⅲ (PCⅢ), and laminin (LN), observe hepatic pathological changes by HE staining and Masson staining, and determine the mRNA and protein expression levels of TGF-β1 and β-catenin by RT-PCR and Western blot.
RESULTS: Compared with the colchicine group and model group, serum levels of HA, type Ⅳ collagen, PCⅢ, and LN declined significantly in the other groups. The degree of hepatic fibrosis in the Yinshao powder groups was less than that in the colchicine group and model group. The mRNA and protein expression levels of TGF-β1 and β-catenin were significantly lower in the Yinshao powder groups than in the model group and colchicine group.
CONCLUSION: Clearing heat, expelling damp and promoting blood circulation with Yinshao powder for intervention of hepatic fibrosis may be via molecular mechanisms associated with inhibiting or down-regulating the expression of TGF-β1 and β-catenin and blocking the activation of TGF-β1 signaling pathway and Wnt/β-catenin signaling pathway.
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