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The correlation between the autoantibodies against β_1 and α_1-adrenergic receptor and urinary albumin excretion rate in type 2 diabetes mellitus

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Author:
No author available
Journal Title:
CHINESE JOURNAL OF DIABETES
Issue:
11
DOI:
10.3969/j.issn.1006-6187.2009.11.010
Key Word:
糖尿病;2型;受体;肾上腺素能β_1;受体;肾上腺素能α_1;自身抗体;尿白蛋白;肾功能衰竭

Abstract: 目的 探讨2型糖尿病(T2DM)患者血清抗α_1和β_1受体自身抗体与白蛋白尿的关系.方法 根据尿白蛋白排泄率(UAER)将201例T2DM患者分为:正常白蛋白尿(N-Ualb)组71例,微量白蛋白尿(M-Ualb)组79例,临床白蛋白尿(C-Ualb)组51例.40名正常人为正常对照(NC)组.以合成的α_1和β_1受体多肽片段为抗原,应用酶联免疫吸附(ELISA)技术,检测四组血清中抗G-蛋白偶联型α_1和β_1受体自身抗体.结果 (1)M-Ualb+C-Ualb组患者血清抗α_1和β_1受体自身抗体阳性率分别为52.3%和51.5%,明显高于N-Ualb组的12.7%和15.5%及NC组的12.5%和10.0%,差异均有统计学意义(P均<0.05).(2)C-Ualb组抗α_1和β_1受体自身抗体阳性率分别为68.6%和70.6%,明显高于M-Ualb组的41.8%和39.2%,M-Ualb组明显高于N-Ualb组,差异均有统计学意义(P均<0.01).结论 血清抗α_1和β_1受体自身抗体阳性率与白蛋白尿有关,在糖尿病并发肾损害中起重要作用.

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