Objective: To observe the effect of Quyu Chencuo Formula(去菀陈莝方, QCF) on renal fibrosis in rats with obstructive nephropathy. Methods: Twenty-four rats were randomly divided into three groups, 4 for sham operation...Objective: To observe the effect of Quyu Chencuo Formula(去菀陈莝方, QCF) on renal fibrosis in rats with obstructive nephropathy. Methods: Twenty-four rats were randomly divided into three groups, 4 for sham operation as the control group, 10 for unilateral ureteral obstruction(UUO) model group, and the rest 10 for QCF treating UUO model group. All rats were sacrificed under 3% pentobarbital(50 mg/kg) anesthesia on the 14 th day after surgery, then the right kidney samples of rats were harvested for hematoxylin eosin(HE) staining and Masson staining to observe the renal pathological changes. Immunohistochemistry and Western blotting were used to examine the expression of transforming growth factor β1(TGF-β1), and real-time polymerase chain reaction(RT-PCR) was employed to examine the expressions of TGF-β1, α-smooth muscle actin(α-SMA) and E-cadherin mRNA. Results: HE and Masson staining showed that the renal interstitial of the rats in the control group had no significant fibrotic lesion; in the model group, there were obvious interstitial fibrosis; for the QCF group, there were epithelial cell necrosis, infiltration of lymphocytes and mononuclear cells, aggravated interstitial fibrosis in varied degrees, but the pathological changes were less in the QCF group than in the model group. The immunohistochemistry and Western blotting results showed that the TGF-β1 expression was increased significantly in the model group, while decreased significantly in the QCF group(P<0.05); RT-PCR showed that the mRNA expression of α-SMA and TGF-β1 increased significantly in the model group, while both were significantly decreased in the QCF group compared with the model group(P<0.05). The mRNA expression of E-cadherin was decreased significantly in the model group, and it was significantly increased in the QCF group as compared with the model group(P<0.05). Conclusion: QCF may improve renal fibrosis by regulating the expressions of TGF-β1, α-SMA and E-cadherin, and prevent the progress of kidney fibrosis.展开更多
目的:观察复肾颗粒对单侧输尿管结扎致肾间质纤维化模型大鼠的肾脏保护作用,探讨其机制。方法:将60只雄性Wi st ar大鼠行单侧输尿管结扎术,分为模型组、假手术组、贝那普利组[10 mg/(kg·d)]、复肾颗粒1组[7.5 g/(kg·d)]、复...目的:观察复肾颗粒对单侧输尿管结扎致肾间质纤维化模型大鼠的肾脏保护作用,探讨其机制。方法:将60只雄性Wi st ar大鼠行单侧输尿管结扎术,分为模型组、假手术组、贝那普利组[10 mg/(kg·d)]、复肾颗粒1组[7.5 g/(kg·d)]、复肾颗粒2组[15 g/(kg·d)]、复肾颗粒3组[30 g/(kg·d)]。各组于灌胃给药及灌胃生理盐水14天后处死大鼠,收集大鼠血清进行血肌酐(Scr)、尿素氯(BUN)检测;取结扎侧肾脏,进行HE和Masson染色,观察肾小管间质纤维化程度,RT-PCR和West er n bl ot法检测肾组织TRAF6和α-SMA的表达。结果:与假手术组相比,模型组大鼠血清中Scr和BUN含量均增加(P<0.01),肾小管损伤程度较重(P<0.05),肾组织TRAF6和α-SMA表达明显增多(P<0.05);与模型组比较,不同剂量复肾颗粒作用后大鼠血清中Scr和BUN含量均下降(P<0.05),肾小管损伤程度有所缓解(P<0.05),肾组织内TRAF6和α-SMA表达降低(P<0.05),随着药物剂量的增加,各指标程度加重。结论:复肾颗粒可明显减轻肾间质炎症细胞浸润及间质纤维化,延缓肾功能损害,复肾颗粒对单侧输尿管结扎大鼠肾小管间质纤维化有保护作用,其机制可能与抑制TRAF6和α-SMA表达有关。展开更多
基金Supported by the National Natural Science Foundation of China(No.30973834 and No.81102692)
文摘Objective: To observe the effect of Quyu Chencuo Formula(去菀陈莝方, QCF) on renal fibrosis in rats with obstructive nephropathy. Methods: Twenty-four rats were randomly divided into three groups, 4 for sham operation as the control group, 10 for unilateral ureteral obstruction(UUO) model group, and the rest 10 for QCF treating UUO model group. All rats were sacrificed under 3% pentobarbital(50 mg/kg) anesthesia on the 14 th day after surgery, then the right kidney samples of rats were harvested for hematoxylin eosin(HE) staining and Masson staining to observe the renal pathological changes. Immunohistochemistry and Western blotting were used to examine the expression of transforming growth factor β1(TGF-β1), and real-time polymerase chain reaction(RT-PCR) was employed to examine the expressions of TGF-β1, α-smooth muscle actin(α-SMA) and E-cadherin mRNA. Results: HE and Masson staining showed that the renal interstitial of the rats in the control group had no significant fibrotic lesion; in the model group, there were obvious interstitial fibrosis; for the QCF group, there were epithelial cell necrosis, infiltration of lymphocytes and mononuclear cells, aggravated interstitial fibrosis in varied degrees, but the pathological changes were less in the QCF group than in the model group. The immunohistochemistry and Western blotting results showed that the TGF-β1 expression was increased significantly in the model group, while decreased significantly in the QCF group(P<0.05); RT-PCR showed that the mRNA expression of α-SMA and TGF-β1 increased significantly in the model group, while both were significantly decreased in the QCF group compared with the model group(P<0.05). The mRNA expression of E-cadherin was decreased significantly in the model group, and it was significantly increased in the QCF group as compared with the model group(P<0.05). Conclusion: QCF may improve renal fibrosis by regulating the expressions of TGF-β1, α-SMA and E-cadherin, and prevent the progress of kidney fibrosis.
文摘目的:观察复肾颗粒对单侧输尿管结扎致肾间质纤维化模型大鼠的肾脏保护作用,探讨其机制。方法:将60只雄性Wi st ar大鼠行单侧输尿管结扎术,分为模型组、假手术组、贝那普利组[10 mg/(kg·d)]、复肾颗粒1组[7.5 g/(kg·d)]、复肾颗粒2组[15 g/(kg·d)]、复肾颗粒3组[30 g/(kg·d)]。各组于灌胃给药及灌胃生理盐水14天后处死大鼠,收集大鼠血清进行血肌酐(Scr)、尿素氯(BUN)检测;取结扎侧肾脏,进行HE和Masson染色,观察肾小管间质纤维化程度,RT-PCR和West er n bl ot法检测肾组织TRAF6和α-SMA的表达。结果:与假手术组相比,模型组大鼠血清中Scr和BUN含量均增加(P<0.01),肾小管损伤程度较重(P<0.05),肾组织TRAF6和α-SMA表达明显增多(P<0.05);与模型组比较,不同剂量复肾颗粒作用后大鼠血清中Scr和BUN含量均下降(P<0.05),肾小管损伤程度有所缓解(P<0.05),肾组织内TRAF6和α-SMA表达降低(P<0.05),随着药物剂量的增加,各指标程度加重。结论:复肾颗粒可明显减轻肾间质炎症细胞浸润及间质纤维化,延缓肾功能损害,复肾颗粒对单侧输尿管结扎大鼠肾小管间质纤维化有保护作用,其机制可能与抑制TRAF6和α-SMA表达有关。
