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小儿病毒性脑炎基因分型在诊断中应用的探讨 被引量:1

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摘要 目的探讨一种新的肠道病毒分型诊断方法的临床应用价值。方法选取我院2006.06~2009.08期间诊断为病毒性脑炎的住院患儿共50例,均于人院的当天抽取脑脊液。试验先经种属特异性引物扩增,筛选出肠道病毒样本,然后分别用测序VP1及VP2序列的方法进行分型。分型结果最后经回顾性中和试验进行确认。试验同时设立阳性对照及阴性对照。结果50例临床样本中,共有45例临床样本检测出EVRNA。其中,经VP1序列分型方法可成功扩增分型40例,反应产物为357bp的片段。经VP2序列分型方法可成功扩增分型38例,扩增产物为584bp的片段。微量中和试验及BLAST比对结果显示:两者在分型结果上有较高的一致性及互补性。结论①经VP1序列分型方法可以成功分型临床常见肠道病毒中的大多数血清型。②联合VP2序列分型方法较单用VP1序列分型方法,分型率及敏感性更高,值得临床上进一步推广。
出处 《国际病毒学杂志》 2010年第5期152-156,共5页 International Journal of Virology
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