HIV-1抗体阳性者WB带型及其在不同临床分期中的特征分析

摘要

Objective To investigate the band pattern characteristics of Western bolt (WB) by analyzingthe change of anti-virus antibodies from patients with different clinical stages of human immunodeficiency virus 1 (HIV-1) infection.Methods Antibodies were detected by WB test,CD4+ T cells by flow cytometer.Results Among 208 cases,193 male cases accounted for 92.79％,and 163 cases of men who have sex with men (MSM) accounted for 78.37％.The antibodies against viral protein gp160,gp120,gp41,p66,p51,p31,p24 showed high positive rates,and no significant different was detected across different clinical stages.The positive rate of p55 antibody,encoding by gag gene,was significantly higher in those HIV positive individuals infected via homosexual compared with HIV-1 positive individuals through heterosexual contact (P＜0.05).The 5 common WB bands patterns were as following:all bands①,missing p55②,missing p39③,missing p55 + p39④ and missing p39 + p55 + p17⑤.Primary stage infection group showed the highest appearance rate of all bands (44.2％).Conclusions The WB bands patterns and CD4+ T lymphocyte counts can help to judge immune status,determine disease stages and monitor disease progression.We should take effective measures for the MSM and floating population.%目的 分析HIV-1抗体阳性者血清中病毒蛋白的变化,探讨不同临床分期HIV-1抗体阳性者Western blot(WB)带型特点.方法 应用WB检测HIV-1感染者体内特异性抗体,流式细胞仪检测CD4+T淋巴细胞计数.结果 208例HIV-1抗体阳性者中,男性193例(92.79％),同性性接触感染163例(78.37％).WB特异性条带gp160、gp120、gp41、p66、p51、p31、p24维持较高的抗体阳性率,在不同临床分期间差异无统计学意义;异性性行为感染者gag基因编码蛋白的抗体p55条带的出现率高于同性性行为感染者(P＜0.05);全带型①、次全带型②(缺失p55)、次全带型③(缺失p39)、次全带型④(缺失p55和p39)、次全带型⑤(缺失p55、p39和p17)5种带型为常见带型,全带型出现率最高(44.2％).结论 HIV-1抗体阳性者的CD4+T淋巴细胞计数有助于判断机体免疫状态、确定疾病分期及监测疾病进展.闵行区艾滋病的防治重点为外来流动人员及男男性行为人群.