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广东省单纯丙型肝炎病毒及其与人类免疫缺陷病毒共感染者丙型肝炎病毒的基因亚型分析
  • ISSN号:1007-3418
  • 期刊名称:《中华肝脏病杂志》
  • 时间:0
  • 分类:R512.63[医药卫生—临床医学;医药卫生—内科学]
  • 作者机构:[1]广州市传染病研究所,510060, [2]广州市第八人民医院感染科
  • 相关基金:艾滋病和病毒性肝炎等重大传染病防治科技重大专项(2008ZX10001-008);广州市医药卫生科技重点项目(2007-ZDi-03)
中文摘要:

目的了解广东省人类免疫缺陷病毒(HIV)/HCV共感染者与单纯HCV感染者的感染途径、HCV的基因亚型分布及其遗传特征,为丙型肝炎病毒感染的治疗与预防提供依据。方法采用巢式逆转录-聚合酶链反应扩增广东省95例HIV/HCV共感染者及99例单纯HCV感染者HCVNS5B基因区域,扩增产物测序后进行HCV基因亚型分析,遗传分析利用MEGA4软件。不同种基因亚型型内基因距离以碱基置换率表示。结果HIV/HCV共感染者HCV有5种基因亚型,其中6a型占53.7%(51/95)、3a型占17.9%(17/95)、1b型占15.8%(15/95)、3b型占11.6%(11/95)、1a型占1.0%(1/95);1b亚型内基因距离为6.30%±1.27%,高于其他基因亚型。HIV/HCV共感染者主要通过静脉注射毒品感染(75/95,78.9%),其基因亚型主要为6a型,占60.0%(45/75)。单纯HCV感染者HCV有7种基因亚型,其中1b型占67.7%(67/99)、6a型占17.2%(17/99)、3a型占6.1%(6/99)、2a型占5.0%(5/99)、3b型占2.0%(2/99)、4a型占1.0%(1/99)、5a型占1.0%(1/99);1b亚型内基因距离为5.17%±1.03%,高于其他基因亚型。单纯HCV感染者主要通过输血或血液制品感染(80/99,80.8%),其HCV基因亚型主要为1b型,占76.2%(61/80)。结论广东地区HIV/HCV共感染者及单纯HCV感染者HCV基因亚型呈现多样性,HIV/HCV共感染者与单纯HCV感染者主要感染途径不同,HCV主要基因亚型也不同。

英文摘要:

Objective To explore the transmission routes, genotypes/subtypes distribution and genetic character of HCV in HIV/HCV co-infected and HCV mono-infected individuals in Guangdong Province. Methods Reverse transcription (RT) nested PCR was performed to amplify the HCV NS5B gene region from 95 HIV/HCV co-infected and 99 HCV mono-infected individuals lived in Guangdong province. The PCR products were then sequenced for HCV subtyping. Genetic analysis was done by MEGA4 software. Results (1) HIV/HCV co-infected individuals infected HCV mostly through injection drug use (IDU, 78.9%), the HCV subtypes were identified as 6a (53.7%), 3a (17.9%), lb (15.8%), 3b (11.6%) and la (1.0%) respectively, the genetic distance within subtype lb was longer than those within other subtypes, the predominant HCV subtype in HIV/HCV co-infected individuals infected through IDU was 6a (60.0%). (2) HCV mono-infected individuals infected HCV mostly through blood or blood products transfusions (80.8%), the HCV subtypes were identified as lb (67.7%), 6a (17.2%), 3a (6.1%), 2a (5.0%), 3b (2.0%), 4a (1.0%) and 5a (1.0%) respectively, the genetic distance within subtype lb was also longer than those within other subtypes, the predominant HCV subtype in HCV mono-infected individuals infected through blood or blood products transfusions was lb (76.2%). Conclusion The diversity of HCV subtypes in HIV/HCV co-infected and HCV mono-infected individuals in Guangdong Province was high, both the major transmission route and HCV subtype between HIV/HCV co-infected individuals and HCV mono-infected individualswere different.

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期刊信息
  • 《中华肝脏病杂志》
  • 北大核心期刊(2011版)
  • 主管单位:中国科学技术协会
  • 主办单位:中华医学会
  • 主编:
  • 地址:重庆市渝中区临江路74号
  • 邮编:400010
  • 邮箱:chnhepa@online.cq.cn
  • 电话:023-63706512
  • 国际标准刊号:ISSN:1007-3418
  • 国内统一刊号:ISSN:50-1113/R
  • 邮发代号:78-56
  • 获奖情况:
  • 中国期刊方阵“双效”期刊
  • 国内外数据库收录:
  • 美国化学文摘(网络版),荷兰文摘与引文数据库,美国生物医学检索系统,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版)
  • 被引量:47128