【摘要】 目的:探讨白藜芦醇对动脉粥样硬化(AS)模型兔血脂及脂肪分化相关蛋白(ADRP)表达的影响。方法:将新西兰兔36只随机分为4组(每组9只):正常对照组、AS模型组、白藜芦醇低剂量组和白藜芦醇高剂量组。治疗给药15周,检测各组治疗前后血清脂蛋白的表达水平,主动脉组织脂肪细胞中ADRP表达,兔主动脉组织脂肪细胞ADRP mRNA的表达,并进行统计学比较。结果:15周末与AS模型组相比,白藜芦醇低、高剂量组血清总胆固醇[TC,(18.25±4.35)mmol/L比(12.79±2.45)mmol/L、(10.35±2.80)mmol/L],甘油三酯[TG,(3.15±0.94)mmol/L比(2.63±0.75)mmol/L、(1.18±0.64)mmol/L]及低密度脂蛋白胆固醇[LDL-C,(15.18±3.65)mmol/L比(8.35±1.15)mmol/L、(7.18±1.75)mmol/L]含量明显下降,高密度脂蛋白胆固醇[HDL-C,(1.02±0.36)mmol/L比(3.22±1.02)mmol/L、(2.72±0.82)mmol/L]明显升高(P<0.05或P<0.01),白藜芦醇高剂量组甘油三酯[TG,(3.15±0.94)mmol/L比(1.18±0.64)mmol/L]水平显著降低(P<0.01);白藜芦醇低、高剂量组主动脉组织脂肪细胞中ADRP组化染色[(0.43±0.05)比(0.35±0.04)、(0.38±0.15)]及ADRPmRNA的表达[(2.47±0.94)比(1.30±0.49)、(1.83±0.61)]均明显减弱(P均<0.01)。结论:白藜芦醇能抑制动脉粥样硬化兔主动脉组织脂肪细胞中ADRP及其mRNA的过度表达,降低血脂,有利于延缓动脉粥样硬化进程。更多还原

【Abstract】 Objective:To explore the influence of resveratrol on blood lipid level and expression of adipose differentiation related protein(ADRP)in atherosclerosis(AS)model rabbits.Methods:A total of 36 New Zealand rabbits were randomly and equally divided into normal control group,AS model group,low dose resveratrol group(low dose group)and high dose resveratrol group(high dose group).Rabbits received 15-week administration,expression level of serum lipoprotein,ADRP and ADRPmRNA expressions in adipocytes of rabbit aortic tissue were measured and compared among all groups before and after treatment.Results:Compared with AS model group at the end of 15 th week,there were significant reductions in serum concentrations of total cholesterol[TC,(18.25±4.35)mmol/L vs.(12.79±2.45)mmol/L,(10.35±2.80)mmol/L],triglyceride [TG,(3.15±0.94)mmol/L vs.(2.63±0.75)mmol/L、(1.18±0.64)mmol/L]and low density lipoprotein cholesterol[LDL-C,(15.18±3.65)mmol/L vs.(8.35±1.15)mmol/L,(7.18±1.75)mmol/L],and significant rise in level of high density lipoprotein choles-terol[HDL-C,(1.02±0.36)mmol/L vs.(3.22±1.02)mmol/L,(2.72±0.82)mmol/L]in low dose group and high dose group(P<0.05or<0.01),and significant reduction in level of triglyceride[TG,(3.15±0.94)mmol/L vs.(1.18±0.64)mmol/L]in high dose group,P<0.01;ADRP histochemical staining[(0.43±0.05)vs.(0.35±0.04),(0.38±0.15)]and ADRPmRNA expression[(2.47±0.94)vs.(1.30±0.49),(1.83±0.61)]significantly weakened in adipocytes of aortic tissue in low dose group and high dose group,P<0.01 all.Conclusion:Resveratrol can inhibit the overexpression of ADRP and its mRNA in adipocytes of aortic tissue in AS rabbits,reduce blood lipid levels,and help to delay the AS progression.更多还原