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血清乙肝病毒cccDNA检测的临床分析

ACTA UNIVERSITATIS MEDICINALIS NANJING(2009)

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Abstract
目的:探讨血清中乙型肝炎病毒(HBV)共价闭合环状DNA(cccDNA)全序列的PCR检测与HBV复制及肝细胞损伤的临床相关性.方法:用长链PCR方法对乙型肝炎患者血清进行HBV cccDNA全序列直接扩增,同时检测血清中乙型肝炎病毒前S1(PreS1)抗原和丙氨酸氨基转移酶(ALT)活性.结果:cccDNA和PreS1抗原在乙型肝炎病毒e抗原(HBeAg)阳性血清中检出率分别为43.94%(29/66)和83.33%(55/66),在HBeAg阴性血清中的检出率分别为13.33%(4/30)和30.00%(9/30);cccDNA阳性血清的PreS1抗原阳性率和ALT活性升高分别为90.91%(30/33)和93.94%(31/33),cccDNA阴性血清的PreS1抗原阳性率和ALT活性升高分别为53.97%(34/63)和41.27%(26/63).结论:血清中cccDNA的检出与PreS1抗原、HBeAg的表达以及肝细胞损伤呈高度相关性.
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