Kelsoe G H, Weller T H
Proc Natl Acad Sci U S A. 1978 Nov;75(11):5715-7. doi: 10.1073/pnas.75.11.5715.
A circulating antigen, a negatively charged polysaccharide from the trematode Schistosoma mansoni, was noncovalently bound to the surface of poly(L-lysine)-coated wells in polystyrene trays, which were then used in a micro-enzyme-linked immunosorbent assay (ELISA) test. The method provides an immunodiagnostic test for schistosomiasis of exceptional sensitivity with a high degree of specificity. Comparison of Bell egg counts and ELISA titers revealed a good correlation (r congruent to 0.80) in young individuals with low to moderate worm burdens, but this relationship was less marked in older individuals or those with high egg counts.
一种循环抗原,即来自曼氏血吸虫的带负电荷的多糖,非共价结合于聚苯乙烯培养板中经聚(L - 赖氨酸)包被的孔表面,然后用于微酶联免疫吸附测定(ELISA)试验。该方法为血吸虫病提供了一种具有极高灵敏度和高度特异性的免疫诊断测试。对贝尔虫卵计数与ELISA滴度的比较显示,在虫负荷低至中等的年轻个体中存在良好的相关性(r约为0.80),但在年龄较大的个体或虫卵计数高的个体中这种关系不太明显。