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拉米夫定耐药HBV毒株伴随变异与YMDD变异的关系 邵幼林,赵卫峰,陈良云,朱义玲,甘建和 邵幼林,赵卫峰,陈良云,朱义玲,甘建和,苏州大学附属第一医院感染科江苏省苏州市215006 邵幼林,男,1982-06-17生,江西鄱阳县人,汉族.2006年苏州大学附属第一医院感染科硕士研究生主要从事病毒性肝炎的研究. 基金项目:江苏省卫生科研项目(NO.H200711) 通讯作者:赵卫峰,215006,江苏省苏州市十梓街96号,苏州大学附属第一医院感染科,HYPERLINK"mailto:szzhaoweifeng@yahoo.com.cn"szzhaoweifeng@yahoo.com.cn 电话:13306218767 收稿日期:接受日期: TherelationshipsofincidentalmutationsandYMDDmutationofthereversetranscriptasedomainofHBVpolymeraseinlamivudine-resistantpatients You-linShao,Wei-fengZhao,Liang-yunChen,Yi-lingZhu,Jian-heGan You-linShao,Wei-fengZhao,Liang-yunChen,Yi-lingZhu,Jian-heGan.DepartmentofinfectiousDiseasea.FirstAffiliatedHospitalofSoochowUniversity,Suzhou,JiangsuProvince,215006,China. SupportedbytheFundofhealthprojectofJiangsuProvince,No.H200711 Correspondenceto:Wei-fengZhaoDepartmentofinfectiousDiseasea.FirstAffiliatedHospitalofSoochowUniversity,Suzhou,JiangsuProvince,215006,China.Email:szzhaoweifeng@yahoo.com.cn Received:Accepted: Abstract AimTostudytheincidentalmutationsandtherelationshipsofthemwithtyrosine-methionine-aspartate-aspartate(YMDD)mutationofthereversetranscription(RT)domainofHBVpolymeraseinlamivudine-resistant(LAMr)patients. MethodsHBVDNAwasamplifiedbyPCRusingspecificprimersflankingregionsofRTandthePCRproductsweredirectlyanalyzedbysequencing.HBVDNAlevelswithmutationsofLAMrweremeasuredviareal-timePCR.HBVDNAlevelswereanalyzedaccordingtopatternsofthemutationsofLAMr(group1withrtV173L/MorrtV207M/L/Imutations,group2withrtS213Tmutationandgroup3withoutthethreemutations). Results1)TheleadingmutationisYMDDmutationandtheincidentalmutationsarertL180M,rtV173L/M,rtV207M/L/IandrtS213Tmutations.ThereisnodifferenceoftheconstituentratioofmutationsbetweengenotypeBandC(P=0.2620).2)Theincidentalmutationsexistin38.8%rtM204I,89.2%rtM204V,73.3%rtM204V/Irespectively(P<0.0001).3)TheserumHBVDNAlevelofgroup1,2and3was7.43±0.16log10copies/ml,5.01±0.90log10copies/ml,5.75±0.34log10copies/mlrespectivly(F=4.48,P=0.0240). ConclusionThereisnodifferenceoftheconstituentratioofmutationsbet