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Herbal medicine Rhei rhizome prevents liver fibrosis in rat liver cirrhosis induced by a choline-deficient L-amino acid-defined diet

机译:草药Rhei根茎可预防胆碱缺乏L-氨基酸定义饮食引起的大鼠肝硬化肝纤维化

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The aim of this study was to investigate whether herbal medicine Rhei rhizome, extract powder from herbs, has influences on the development of liver fibrosis. In in vivo studies the effects of Rhei rhizome were examined using the choline-deficient L-amino acid-defined (CDAA) diet-induced liver fibrosis model. In In vitro studies the effects of Rhei rhizome on type I procollagen mRNA expression, alpha-smooth muscle actin (et-SMA), metalloproteinases (MMPs) and tissue inhibitors of metalloprotemases (TIMPs) of isolated hepatic stellate cell were examined. In vivo Rhei rhizome prevented fibrosis in a dose-dependent manner up to 1.0% (w/w) with a reduced number of activated stellate cells. In vitro the Rhei rhizome prevented stellate cell activation resulting in reduced type I procollagen mRNA, alpha-SMA and TIMP-1, 2 expression. These results indicate that Rhei rhizome significantly reduces liver fibrosis by the direct inhibition of stellate cell activation without reducing hepatocyte cell death. (c) 2005 Elsevier Inc. All rights reserved.
机译:这项研究的目的是调查草药大黄根(从草药中提取的粉末)是否对肝纤维化的发展有影响。在体内研究中,使用胆碱缺陷型L-氨基酸定义(CDAA)饮食诱导的肝纤维化模型检查了Rhei根茎的作用。在体外研究中,研究了Rhei根茎对I型前胶原mRNA表达,α平滑肌肌动蛋白(et-SMA),金属蛋白酶(MMP)和分离的肝星状细胞的金属旋转酶(TIMPs)的影响。体内Rhei根茎可以剂量依赖性方式预防纤维化,最多可减少1.0%(w / w)的活化星状细胞数量。在体外,Rhei根茎阻止星状细胞活化,导致I型前胶原mRNA,α-SMA和TIMP-1,2表达降低。这些结果表明,Rhei根茎通过直接抑制星状细胞的活化而不降低肝细胞的死亡而显着降低了肝纤维化。 (c)2005 Elsevier Inc.保留所有权利。

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