摘要:目的 探讨乙肝病毒前S1蛋白抗原(PreS1Ag)、乙肝病毒基因(HBV-DNA)和乙肝"两对半"检测的相关性及在乙肝诊治中的价值.方法 PreS1Ag和乙肝"两对半"检测采用酶联免疫法,HBV-DNA检测采用荧光定量PCR扩增技术.结果包括HbeAg阳性的2种组合中,HBV-DNA和PreS1Ag阳性率分别为87.1%、86.0%和100.0%、100.0%,HBV-DNA和PreS1Ag,在不包括HbeAg阳性的3种组合中,HBV-DNA和PreS1Ag阳性率分别为42.3%、45.7%;46.3%、44.8和11.1%、11.1%.HBV-DNA检测阳性标本中,PreS1Ag的阳性率为87.2%,HbeAg阳性率为75.6%;二者联合检测阳性率为96.5%,HBV-DNA检测阴性标本中PreS1Ag和HbeAg的阳性率为7.8%和5.2%,二者联合检测阳性率为9.5%.结论 PreS1Ag检测联合乙肝"两对半"检测是乙型肝炎早期诊断和评价疗效的可靠指标,可在临床推广应用.
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