ICAM-1K469E位点A等位基因可降低EV71手足口病发生率

Progress in Modern Biomedicine(2012)

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Abstract
目的:研究ICAM-1基因K469E位点、MCP-1A2518G位点基因多态性及sICAM-1、MCP-1在血清中表达水平与EV71手足口病的关系,探讨EV71型手足口病的遗传易感因素.方法:运用限制性片段长度多态性-聚合酶链反应(PCR-RFLP)检测急性期EV71感染阳性的手足口病患儿和正常儿童中ICAM-1K469E位点及MCP-1A2518G位点碱基变异情况,同时采用双夹心抗体法(ELISA)检测血清sICAM-1和MCP-1水平.结果:EV71手足口病组患儿血清中sICAM-1和MCP-1水平均显著高于正常对照组(P均<0.01).EV71手足口病组ICAM-1K469E位点中,A等位基因的频率显著低于对照组(x2=6.897,P<0.01).EV71手足口病组患儿MCP-1基因型分布、等位基因频率与对照组比较均无统计学意义(P>0.05).结论:sICAM-1表达水平和其基因K469E位点多态性与EV71手足口病有关,A等位基因可降低EV71手足口病发生率.MCP-1表达水平与EV71手足口病感染有关,但MCP- 1A-2518G位点基因多态性与EV71手足口病感染无关.
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Key words
Enterovirus71,Polymorphisms,ICAM-1,MCP-1
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