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摘要:
目的 调查贵州省接受抗逆转录病毒治疗(antiretroviral therapy,ART)的人类免疫缺陷病毒/艾滋病(human immunodeficiency virus/acquired immune deficiency syndrome,HIV/AIDS)患者的HIV亚型分布特征,为艾滋病防治提供参考。 方法 采用方便抽样策略,收集贵州省2013-2017年间8 583份抗病毒治疗半年以上的在治艾滋病患者血浆,采用面对面问卷调查、HIV检测等横断面调查。 结果 其中有1 511例HIV病毒抑制失败(病毒载量,viral load,VL>1 000 copies/ml),成功对1 410例(93.31%)HIV抑制失败患者的HIV pol基因进行基因分型。结果显示,51.42%为CRF01_AE基因型,26.67%为CRF07_BC基因型,16.1%为CRF08_BC基因型。 结论 通过对贵州省近年来HIV流行亚型和主要传播途径的变化分析,提示HIV基因突变引起亚型的改变应先于HIV主要传播途径的改变,及时监测HIV亚型变化可作为防治艾滋病的主要依据之一。 Abstract:Objective To investigate the molecular characteristics of human immunodeficiency virus/acquired immune deficiency syndrome (HIV/AIDS) patients receiving antiretroviral therapy (ART) in Guizhou Province. Methods Using a convenience sampling strategy, 8 583 samples were collected in Guizhou and an investigation was conducted including face-to-face questionnaire interview and HIV testing. Results 1 511 cases failed in HIV suppression (viral load, VL>1 000 copies/ml). 1 410 cases (93.31%) were successfully genotyped with HIV pol gene, among which 51.42% were genotyped as CRF01_AE, 26.67% as CRF07_BC and 16.1% as CRF08_BC. Conclusion The subtype changes caused by HIV gene mutation should precede the changes of main transmission routes of HIV through the analysis in recent years. Timely monitoring the changes of HIV subtypes can be one of the main bases for the prevention and control of AIDS. -
Key words:
- AIDS /
- antiretroviral therapy /
- HIV /
- subtype distribution
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表 1 基因检测引物序列
Table 1. Primer sequences for gene detection
引物类别 引物名称 方向 序列(5′-3′) 扩增引物 MAW26 外侧上游 TGGAAATGTGGAAAAGAAGGAC RT21 外侧下游 CTGTATTTCAGCTATCAAGTCTTTTGATGGG PRO1 内侧上游 CAGAGCCAACAGCCCCACCA RT20 内侧下游 CTGCCAATTCTAATTCTGCTTC 测序引物 PROS3 正向测序 GCCAACAGCCCCACCA RTAS 正向测序 CTCAGATTGGTTGCAC RTBS 正向测序 CCTAGTATAAACAATGAGACAC PROC1S 反向测序 GCTGGGTGTGGTATTCC RT20S3 反向测序 GTTCTAGCTCTGCTTC 表 2 2013-2017年贵州省艾滋病患者人口学特征
Table 2. Demographic characteristics of HIV/AIDS patients from 2013 to 2017
特征 例数 构成比(%) 总数 8 583 性别 男 5 433 63.30 女 3 150 36.70 年龄(岁) ≤25 816 9.51 26~ 2 531 29.49 36~ 2 421 28.21 >45 2 813 32.77 不详 2 0.02 婚姻 未婚 2 025 23.59 已婚或同居 4 727 55.07 离异或丧偶 1 808 21.06 不详 23 0.27 民族 汉族 6 725 78.35 其他 1 858 21.65 感染途径 同性性传播 956 11.14 异性性传播 5 920 68.97 吸毒传播 732 8.53 血液 47 0.55 母婴 34 0.40 不明确或不详 894 10.42 基线CD4+ (cells/mm3) ≤200 3 314 38.61 201~ 3 137 36.55 351~ 751 8.75 >500 261 3.04 缺失 1 120 13.05 治疗时间(年) < 1 2 700 31.46 1~5 5 310 61.87 >5 533 6.21 不确定 40 0.47 表 3 1 410例艾滋病患者HIV亚型分布情况[n (%)]
Table 3. HIV subtypes among 1 410 HIV/AIDS patients[n (%)]
年份 CRF01_AE CRF07_BC CRF08_BC CRF52_01B CRF55_01B CRF59_01B CRF62_01B CRF67_01B A B C 2013 165(53.57) 84(27.27) 42(13.64) 0(0) 2(0.65) 0(0) 0(0) 0(0) 0(0) 3(0.97) 12(3.9) 2014 231(60.95) 87(22.96) 41(10.82) 1(0.26) 4(1.06) 0(0) 0(0) 1(0.26) 0(0) 4(1.06) 10(2.64) 2015 127(51.42) 67(27.13) 42(17.00) 0(0) 2(0.81) 0(0) 0(0) 0(0) 0(0) 2(0.81) 7(2.83) 2016 73(39.04) 63(33.69) 46(24.60) 0(0) 0(0) 0(0) 1(0.53) 0(0) 0(0) 1(0.53) 3(1.6) 2017 129(44.64) 75(25.95) 56(19.38) 0(0) 4(1.38) 1(0.35) 0(0) 0(0) 4(1.38) 1(0.35) 19(6.57) 合计 725(51.42) 376(26.67) 227(16.1) 1(0.07) 12(0.85) 1(0.07) 1(0.07) 1(0.07) 4(0.28) 11(0.78) 51(3.62) -
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