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Occurrence of HBV precore/core promoter mutation and hepatic inflammation in pregnant women
Author(s): 
Pages: 50-53
Year: Issue:  1
Journal: The Journal of Practical Medicine

Keyword:  Hepatitis B virusGenotypePrecore/core promoterMutation;
Abstract: 目的:调查孕妇所感染乙肝病毒(HBV)基因型及前C/C基因启动子区变异发生情况,以及变异与肝脏炎症的相关性.方法:PCR扩增111例HBV感染孕妇HBV S基因和前C/C基因启动子区序列,PCR产物经测序后与参考序列进行分析比对.结果:111例孕妇中B基因型占54.1%(60/111),其余51例(45.9%)为C基因型.基因亚型中除B2、C1和C2外还存在C5和B4两种基因亚型.前C/C基因启动子区变异分析发现,该区段多个位点的变异均有发生,以A1762T/G1764A变异发生率最高.ALT大于正常上限者该区变异总体发生率高于ALT小于正常上限者,且A1846T和G1896A变异与HBeAg阴性HBV感染相关.结论:感染HBV的孕妇其前C/C基因启动子区存在不同程度变异,且这些变异与HBeAg的水平及肝脏的炎症活动相关.
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