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HLA-A、B、DRB1高分辨等位基因与IgA肾病致慢性肾功能衰竭的关联性研究

Chineae Journal of Organ Transplantation(2015)

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Abstract
目的 探讨HLA-A、B、DRB1高分辨等位基因表达与因IgA肾病(IgAN)最终导致慢性肾功能衰竭(CRF)的相关性.方法 采用聚合酶链反应直接测序分型技术(PCR-SBT)对来自于广东省3所三级甲等医院共191例因IgAN所致CRF患者(研究组)和503例健康献血者(对照组)进行HLA-A、B、DRB1高分辨等位基因分型,比较两组等位基因的频率,分析因IgAN所致CRF与HLA基因多态性的关系.结果 (1)研究组中共表达出HLA等位基因A位点25个,B位点48个,DRB1位点32个.(2)与对照组比较,研究组HLA-A* 2901 (Pc=0.033,OR=10.738,95% CI为1.193~96.691),HLA DRB1*1106 (Pc=0.0001,OR=0.969,95%CI为0.944~0.994),HLA-DRB1*1202(Pc=0.002,OR=1.859,95% CI为1.259~2.745),HLA-DRB1*1401 (Pc=0.021,OR=0.984,95% CI为0.967~0.998),HLA-DRB1* 1602(Pc=0.015,OR=1.915,95% CI为1.157~3.17)基因频率较对照组显著升高,差异均有统计学意义.结论 HLA-A* 2901及HLA-DRB1*1106、*1202、* 1401和*1602高分辨等位基因与IgAN所致CRF呈易感关联,由此推测HLA基因多态性表达与IgAN所致CRF的发生可能有密切的遗传免疫关联性.
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Key words
Immunoglobulin a nephropathy,Chronic renal failure,Human Leukocyte Antigens,Polymorphism,High-resolution,Poymerase chain reaction-sequence-based typing
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