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Pioglitazone Improves Obesity Type Diabeticnephropathy: Relation To The Mitigationrnof Renal Oxidative Reaction

机译:吡格列酮改善肥胖型糖尿病性肾病:与减轻肾脏氧化反应的关系

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Medications to treat hyperglycemia and hyperinsulinemia are expected to inhibit the accumulation of advanced glycation end-products in the diabetic kidney and improve renal function by inhibiting oxidative reactions. In this study, we examined the effect of pioglitazone, an insulin sensitizer, on diabetic nephropathy. Feed containing pioglitazone at 0.01 or 0.02% was given to Zucker-fatty rats for 27 weeks. Pioglitazone reduced plasma glucose, plasma insulin, and blood HbAlc levels. It also decreased plasma total cholesterol, triglyceride, phospholipid and cystatin C levels and inhibited the increase in urine of 8-hydroxydeoxyguanosine and in plasma of malondialdehyde. In the histopathological examinations, pioglitazone inhibited diffusive or nodular thickening of the mesangial matrix, atrophy of the proximal convoluted tubule, thickening of the basement membrane of the tubule, and mild cellular infiltration (mostly small lymphocytes) in the stroma. Furthermore, pioglitazone inhibited the mRNA expression of the receptor for advanced glycation end-products (RAGE) and that of transforming growth factor-beta. Long-term administration of pioglitazone improved hyperglycemia lipid profiles, hypercholesterolemia, and hyperinsulinemia and had a protective effect on diabetic nephropathy in Zucker-fatty rats.
机译:预期用于治疗高血糖和高胰岛素血症的药物将抑制晚期糖基化终产物在糖尿病肾中的积累,并通过抑制氧化反应来改善肾功能。在这项研究中,我们检查了胰岛素增敏剂吡格列酮对糖尿病肾病的影响。将含0.01或0.02%吡格列酮的饲料喂给Zucker-fatty大鼠27周。吡格列酮降低血浆葡萄糖,血浆胰岛素和血液中HbAlc的水平。它还降低了血浆总胆固醇,甘油三酸酯,磷脂和半胱氨酸蛋白酶抑制剂C的水平,并抑制了尿液中的8-羟基脱氧鸟苷和丙二醛血浆的增加。在组织病理学检查中,吡格列酮抑制了肾小球系膜的扩散性或结节性增厚,近曲小管的萎缩,小管基底膜增厚以及基质中的轻度细胞浸润(主要是小淋巴细胞)。此外,吡格列酮抑制了晚期糖基化终产物(RAGE)受体和转化生长因子β受体的mRNA表达。长期服用吡格列酮改善了高血糖患者的脂质谱,高胆固醇血症和高胰岛素血症,并且对Zucker-fatty大鼠的糖尿病肾病具有保护作用。

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