拉米夫定耐药患者乙型肝炎病毒多聚酶区基因突变的检测分析

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目的建立以基因测序检测乙型肝炎病毒(HBV)多聚酶区基因突变的方法,并分析拉米夫定耐药者HBV多聚酶区基因主要耐药突变的分布情况。方法采用巢式PCR方法对174例拉米夫定耐药患者血清HBV多聚酶区进行扩增,对PCR产物进行直接测序,将YMDD突变阳性与阴性的病例分别进行HBV耐药基因突变的分析和比较。结果本研究154例YMDD突变阳性的患者中有10种突变类型,其中以rtM204I突变最多见,为46例(29.9%),其次为rtL180M/M204V(26.6%)、rtL180M/M204I(17.5%)、r
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