【摘要】 目的:探讨Rv0222/ESAT-6融合蛋白对结核病的血清学诊断价值。方法:表达、纯化重组Rv0222/ESAT-6融合蛋白,以其为抗原包板、以酶标抗体为二抗、采用酶联免疫吸附试验(ELISA)检测结核患者、人类免疫缺陷病毒(human immunodeficiency virus,HIV)感染合并结核患者、非结核患者以及正常人血清,评价该融合蛋白对结核病的诊断价值。结果:以结核分枝杆菌感染T淋巴细胞斑点试验(T-SPOT,简称T-SPOT)为金标准,将Rv0222/ESAT-6融合蛋白作为抗原的ELISA诊断结核病的敏感性为86%,特异性为100%;T-SPOT与ELISA对结核病的阳性检出率差异无统计学意义。结论:以Rv0222/ESAT-6融合蛋白作为抗原的ELISA对结核病(包括HIV合并结核病)的血清学诊断有一定价值。更多还原

【Abstract】 Objective:To explore the serodiagnostic value of Rv0222/ESAT-6fusion protein in tuberculosis.Methods:By using purified recombinant Rv0222/ESAT-6 fusion protein as antigen and enzyme-labeled antibody as secondary antibody,the serum of patients with tuberculosis and patients with human immunodeficiency virus(HIV)accompanied by tuberculosis,non-tuberculosis patients and healthy people were detected with enzyme-linked immunosorbent assay(ELISA).The diagnostic value of the fusion protein in tuberculosis was evaluated.Results:By setting T lymphocyte spot test of infection with Mycobacterium tuberculosis(T-SPOT)as the gold standard,the sensitivity and specificity of ELISA,of which Rv0222/ESAT-6 fusion protein was used as the antigen,in the diagnosis of tuberculosis were 86% and 100%,respectively.There was no statistically significant difference in the positive rate of tuberculosis between T-SPOT and ELISA.Conclusions:The ELISA with Rv0222/ESAT-6 fusion protein as antigen,has certain application value in the serodiagnosis of tuberculosis.更多还原