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Dot Blot Assay for Detection of Antidiacyltrehalose Antibodies in Tuberculous Patients

机译:点印迹法检测结核病患者抗二乙酰海藻糖抗体

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A simple dot blot test with diacyltrehalose (DAT) as the antigen was developed to detect anti-DAT antibodies in tuberculous patients. To enhance antigen-antibody reaction detection, rabbit serum raised against human immunoglobulins was used prior to incubation with a protein A-colloidal gold complex. With the dot blot system, it was possible to obtain a sensitivity similar to that of enzyme-linked immunosorbent assay (ELISA) and a specificity of 97.14%, versus a specificity of 94.29% by the ELISA. We conclude that this simple and fast assay could be used in places where ELISA equipment is not easy available and that it might also be applicable with otherMycobacterium tuberculosis immunogenic antigens.
机译:开发了一种简单的以二乙酰海藻糖(DAT)作为抗原的斑点印迹测试来检测结核病患者中的抗DAT抗体。为了增强抗原-抗体反应检测,在与蛋白A-胶体金复合物孵育之前,先使用针对人免疫球蛋白的兔血清。使用斑点印迹系统,可以获得与酶联免疫吸附测定(ELISA)相似的灵敏度,特异性为97.14%,而ELISA的特异性为94.29%。我们得出的结论是,这种简单,快速的测定方法可用于不易获得ELISA设备的地方,也可能适用于其他结核分枝杆菌免疫原性抗原。

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