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Diagnosis of Tuberculosis Based on the Two Specific Antigens ESAT-6 and CFP10

机译:基于两种特异性抗原ESAT-6和CFP10的结核病诊断

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Tests based on tuberculin purified protein derivative (PPD) cannot distinguish between tuberculosis infection, Mycobacterium bovis BCG vaccination, or exposure to environmental mycobacteria. The present study investigated the diagnostic potential of twoMycobacterium tuberculosis-specific antigens (ESAT-6 and CFP10) in experimental animals as well as during natural infection in humans and cattle. Both antigens were frequently recognized in vivo and in vitro based on the induction of delayed-type hypersensitivity responses and the ability to induce gamma interferon production by lymphocytes, respectively. The combination of ESAT-6 and CFP10 was found to be highly sensitive and specific for both in vivo and in vitro diagnosis. In humans, the combination had a high sensitivity (73%) and a much higher specificity (93%) than PPD (7%).
机译:基于结核菌素纯化蛋白衍生物(PPD)的测试无法区分结核病感染,牛分枝杆菌BCG疫苗接种或环境分枝杆菌暴露。本研究调查了两种结核分枝杆菌特异性抗原(ESAT-6和CFP10)在实验动物以及人和牛的自然感染过程中的诊断潜力。分别基于诱导迟发型超敏反应和诱导淋巴细胞产生γ-干扰素的能力,两种抗原在体内和体外都经常被识别。发现ESAT-6和CFP10的组合对于体内和体外诊断都是高度敏感和特异性的。在人类中,该组合比PPD(7%)具有更高的敏感性(73%)和更高的特异性(93%)。

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