【摘 要】
:
目的 了解云南无偿献血员HIV-1感染者的亚型多态性和原发耐药流行状况.方法分析了云南昆明血液中心2005~2006年HIV阳性血浆53份,提取RNA,巢式PCR扩增Pol(含蛋白酶区1~99氨基酸全长和逆转录酶区1~300氨基酸)基因区,测序分析后,使用Los Alamos标准株,构建系统进化树分析亚型;使用斯坦福大学HIV Drug Resistance Database分析耐药相关突变.结果
【机 构】
:
中国疾病预防控制中心性病艾滋病预防控制中心参比室;云南昆明血液中心;中国科学院昆明动物研究所 中国
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目的 了解云南无偿献血员HIV-1感染者的亚型多态性和原发耐药流行状况.方法分析了云南昆明血液中心2005~2006年HIV阳性血浆53份,提取RNA,巢式PCR扩增Pol(含蛋白酶区1~99氨基酸全长和逆转录酶区1~300氨基酸)基因区,测序分析后,使用Los Alamos标准株,构建系统进化树分析亚型;使用斯坦福大学HIV Drug Resistance Database分析耐药相关突变.结果有2份(3.9%)B亚型,10份(19.6%) CRFO1_AE,14份(27.5%) CRF07_BC,25份(49%) CRF08__BC,2份不成功.没有发现蛋白酶抑制剂(PI)主要突变,9人份(17.6%)样本存在PI次要耐药相关突变(DRM),3人份(5.9%)样本有非核苷类逆转录酶抑制剂(NNRTI) DRM,12人份(23.5%)具有核苷类逆转录酶抑制剂(NRTI) DRM,其中T69S有6人份(11.8%).结论无偿献血员中亚型分布均为云南地区的优势流行株,献血员中经性传播的CRF01_AE比例相对较高.云南未用药HIV感染者中耐药相关突变处于高流行状态,应当加大监控,以减少耐药传播和进展.
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