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乙型肝炎病毒基因型研究新进展 被引量:25

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摘要 乙型肝炎病毒(hepatitis B virus,HBV)属于嗜肝DNA病毒科,由于HBV复制过程中HBV DNA聚合酶缺乏校正功能,导致HBV容易发生突变.根据基因序列差异的多少,可将HBV划分为A-H 8种基因型,其中A,B,C,F 4介基因型还可以划分为不同的亚型.HBV基因型呈一定的地理区域性分布.并且HBV基因型对于探讨HBV的传播途径,HBV携带者的流动形式以及变异株在不同人群中的流行情况都有很重要的意义.HBV基因型之间结构和功能的差异均可影响慢性HBV感染者在临床诊治过程中出现的基因变异、病情预后以及对抗病毒治疗的反应性.虽然近几年对HBV基因型的研究迅速增多,但尚处于探索阶段对其研究仍任重而道远.
出处 《世界华人消化杂志》 CAS 北大核心 2006年第22期2211-2216,共6页 World Chinese Journal of Digestology
基金 国家杰出青年科学基金资助项目 No.30325036
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