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糖尿病肾损害对半乳糖凝集素-3和内皮一氧化氮合酶的影响

Shaanxi Medical Journal(2008)

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Abstract
目的:探讨正常和糖尿病肾脏半乳糖凝集素(Galectin)-3和内皮一氧化氮合酶(eNOS)mRNA表达水平改变及其与糖尿病肾病(DN)的关系。方法:选取30只健康成年雄性SD大鼠,随机分为基础对照、正常对照(NC)和糖尿病(DM)组,DM组一次性腹腔注射2%链脲佐菌素(STZ),72h后测定随机血糖如大于16.7mmol/L,则稳定1周确定成模;NC组注射等量的枸橼酸液;于4、8周末提取肾脏总RNA作逆转录聚合酶链反应(RT-PCR),凝胶图谱成像分析系统分析mRNA表达结果。结果:1Galectin-3 mRNA在糖尿病组8周时开始表达,与正常组和糖尿病4周时有显著差异;2eNOS mRNA在正常和糖尿病肾脏均有表达且存在显著性差异,但随DN病程进展表达无明显增加。结论:Galectin-3和eNOS的表达是DN发病过程中机体的适应性改变,可能会延缓血糖对肾脏的损害。
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Diabetic nephropathies/physiopathology Glycosylation end products,advanced/analysis @Galectin-3 Nitric-oxide synthase/analysis Rats
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