首页> 外文期刊>The Journal of Nutritional Biochemistry >Puerarin prevents isoprenaline-induced myocardial fibrosis in mice by reduction of myocardial TGF- beta1 expression.
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Puerarin prevents isoprenaline-induced myocardial fibrosis in mice by reduction of myocardial TGF- beta1 expression.

机译:葛根素通过减少心肌TGF-β1的表达来防止小鼠异丙肾上腺素诱导的心肌纤维化。

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It has been reported that soy isoflavones could significantly increase peroxisome proliferator-activated receptor alpha/ gamma gene expressions, while the activation of peroxisome proliferator-activated receptor alpha/ gamma may attenuate myocardial fibrosis. Puerarin is the main isoflavone isolated from the root of the wild leguminous creeper Pueraria lobata (Willd) Ohwi, so we thought that puerarin could inhibit myocardial fibrotic formation. A mouse myocardial fibrotic model was induced by hypodermic injection of isoprenaline when these mice were simultaneously treated with puerarin 600 and 1200 mg/kg by gavage for 40 days, respectively. The results showed that puerarin could significantly improve myocardial fibrosis and decrease the collagen accumulation, collagen volume fraction, hydroxyproline content in myocardial tissue and cardiac weight index. The results from reverse transcription polymerase chain reaction indicated that the messenger RNA (mRNA) expression of transforming growth factor- beta1 in myocardial tissue was decreased, while the mRNA expressions of peroxisome proliferator-activated receptor alpha/ gamma were increased, in the puerarin groups as compared with the model group. Importantly, puerarin could significantly decrease the protein expressions of transforming growth factor- beta1 and nuclear factor- kappaB in myocardial tissue. These results suggested that puerarin could prevent isoprenaline-induced myocardial fibrosis in mice, and its mechanisms might be related to reduction of transforming growth factor- beta1 expression via activation of peroxisome proliferator-activated receptor alpha/ gamma and subsequent inhibition of nuclear factor- kappaB in myocardial tissue
机译:据报道,大豆异黄酮可以显着增加过氧化物酶体增殖物激活的受体α/γ基因的表达,而过氧化物酶体增殖物激活的受体α/γ的激活可以减弱心肌纤维化。葛根素是从野生豆科植物蔓草葛根中分离出的主要异黄酮,因此我们认为葛根素可以抑制心肌纤维化的形成。当分别通过葛根素600和1200 mg / kg分别通过强饲法治疗40天时,通过皮下注射异戊二烯诱导小鼠心肌纤维化模型。结果表明,葛根素可以显着改善心肌纤维化,并减少胶原蛋白的积累,胶原蛋白的体积分数,心肌组织中羟脯氨酸的含量和体重指数。逆转录聚合酶链反应的结果表明,在葛根素组中,心肌组织中转化生长因子β1的信使RNA(mRNA)表达降低,而过氧化物酶体增殖物激活受体α/γ的mRNA表达升高。与模型组相比。重要的是,葛根素可以显着降低心肌组织中转化生长因子-β1和核因子-κB的蛋白表达。这些结果表明,葛根素可以预防异丙肾上腺素引起的小鼠心肌纤维化,其机制可能与过氧化物酶体增殖物激活受体α/γ的激活减少转化生长因子-β1的表达以及随后抑制核因子-κB有关心肌组织

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