肾衰养真胶囊对慢性肾衰竭大鼠脂代谢紊乱的影响

目的 观察肾衰养真胶囊对慢性肾衰竭(CRF)大鼠脂代谢紊乱的治疗效果并探讨其可能机制。方法 对50 只SD 雄性大鼠采用5/6 肾切除法制作CRF大鼠模型,随机分为空白模型对照组、吉非罗齐治疗组及肾衰养真胶囊高、中、低剂量治疗组;另设正常对照组。于喂药4周后,观察各组脂谱及脂蛋白谱,并用反转录聚合酶链式反应(RT-PCR)法检测心肌脂蛋白脂酶信使RNA(LPLmRNA)的表达。结果 两药均能降低总胆固醇、甘油三酯、低密度脂蛋白胆固醇,升高高密度脂蛋白胆固醇,同时LPLmRNA 表达上调,肾衰养真胶囊各治疗组之间无差异。结论 肾衰养真胶囊可通过促进LPLmRNA 转录而调节血脂水平,改善脂蛋白谱,这可能是肾衰养真胶囊改善CRF大鼠脂代谢紊乱的机制之一。

Effects of Shenshuai Yangzhen capsule on lipid metabolism disorder in rats with chronic renal failure

Objective To investigate the therapeutic effect of Shenshuai Yangzhen capsule, a preparation of traditional Chinese medicine, on lipid metabolism disorder in rats with chronic renal failure (CRF) and explore its mechanism. Methods Fifty male SD rats received 5/6 nephrectomy for preparation of CRF models and were randomized into CRF group, gemfibrozil group, high-, moderate- and low-dose Shenshuai Yangzhen groups, and normal control group. After 4-week treatment as indicated, myocardial lipoprotein lipase messenger RNA (LPL mRNA) level were measured by RT-PCR in rats with surgically induced renal failure (two-stage subtotal nephrectomy). The blood lipid parameters in CRF rats were also determined. Results Compared with those in the CRF group, the plasma total cholesterol, triglyceride, low-density lipoprotein cholesterol and very-low-density lipoprotein cholesterol concentrations in the treatment groups were significantly lower with substantially elevated plasma high-density lipoprotein cholesterol and LPL gene expression. No significant differences were noted between different dose groups of Shenshuai Yangzhen. Conclusion Shenshuai Yangzhen capsule can regulate blood lipid levels in rats with renal insufficiency possibly by enhancing LPL gene expression.