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[Abstract] Objective To study the effect of Dai Huang on glomerulosclerosis and expression of TGF-β1 and smad7 in rats with CRF. Methods Rats were divided into control group, not treated group and Dai Huang treated group with 20 rats in each group. The rats in the latter two groups were intragastric of Adenine. the treated group was fed with Dai Huang at a dose of 4g/(kg·d) for 4 weeks. Urine protein excretion, urea nitrogen and creatinine was measured. The expression of TGF-β1 and Smad7was measured. Results Compared with the control group, the not treated group showed higher urine protein excretion, urea nitrogen, creatinine(P<0.01)and expression of TGF-β1 and smad7. Conclusion Dai Huang can diminish urine protein excretion and prevent glomerulosclerosis in subtotally nephrectomized rats. This protective effect is presumed to be associated with its effect on expression of TGF-β1 and Smad7.
[Keywords] Dai Huang; Chronic renal failure; Adenine; TGF-β1; Smad7
大黄为蓼科植物掌叶大黄,现代药理学研究发现,大黄有抗血小板聚集、降血脂、清除氧自由基、提升超氧化物歧化酶(SOD)的活性,减轻免疫炎症反应的功效,同事具有泻热通便、解毒消痈、行瘀通经功效。我们通过观察大黄对慢性肾功能不全大鼠的治疗,观察其对尿蛋白排泄、肾功能的影响;并观察其对肾组织中转化生长因子β1(TGF-β1)、smad7的蛋白表达及肾脏病理变化的影响,探讨大黄对慢性肾功能不全的疗效及作用机制。
1 材料与方法
1.1 材料
湖北产中药材大黄。腺嘌呤(产品批号2007109)。兔抗TGF-β1、Smad7抗体;En Vision免疫组化试剂盒;BCA试剂盒。
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