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食源性L-精氨酸对高胆固醇血症大鼠肾损害的影响

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摘要 目的 探讨L-精氨酸在脂质肾损害中的作用。方法 26只雄性Wistar大鼠随机分为3组,正常对照组饲以普通饲料。高脂组饲以含4%胆固醇和1%胆酸钠的鼠料,L-精氨酸组除饲以高胆固醇鼠料外饮用含1%精氨酸的自来水。8周后生化法测24小时尿蛋白定量、肌酐清除率、血脂及血丙二醛、肾皮质丙二醛,免疫组化法测肾组织中层粘连蛋白、增殖性核抗原表达及巨噬细胞浸润情况。结果 8周时高胆固醇血症组及L一精氨酸组血清总胆固醇、低密度脂蛋白胆固醇浓度较正常组高(P<0.01),前二者尿蛋白定量较正常组增高(P<0.05)。高胆固醇血症组肌酐清除率较正常组明显下降(P<0.05),L-精氨酸组较正常组明显上升(P<0.05)。L-精氨酸组层粘连蛋白表达较正常组及高胆固醇血症组表达增强,增殖性核抗原阳性细胞较正常组及高胆固醇血症组增多。L-精氨酸组及高胆固醇血症组肾组织中浸润的巨噬细胞数较正常组增多(P<0.05),前二者无显著差异。结论 食源性L-精氨酸可引起高胆固醇血症大鼠肾组织增生,不能改善高胆固醇血症大鼠早期肾损害.
出处 《临床肾脏病杂志》 2001年第2期78-81,共4页 Journal Of Clinical Nephrology
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