Dot-dye-immunoassay for the diagnosis of schistosomiasis mansoni

Memórias do Instituto Oswaldo Cruz

Ana Lúcia Teles Rabello¹  Emmanuel Dias Neto¹  Maria Monica Aguiar Garcia¹  Naftale Katz¹ 

[1] ,FIOCRUZ Centro de Pesquisas René Rachou Belo Horizonte,Brasil

关键词: Schistosomiasis;    immunoassay;    dot-ELISA;    dot-DIA;   

DOI  :  10.1590/S0074-02761992000200003

来源: SciELO

【 摘 要 】

A new serological assay dot-dye-immunoassay (dot-DIA) was evaluated for the diagnosis of schistosomiasis mansoni. This method consist of four steps: (a) biding of antigens to a nitrocellulose membrane (NC); (b) blocking of free sites of the NC; (c) incubation in specific primary antibody; (d) detection of primary antibody reactivity by color development using second antibody coupled to textile dyes. Sera from 82 individuals, 61 with Schistosoma mansoni eggs in the stool and 21 stool negative were tested by ELISA, dot-ELISA, and dotDIA. A high level of agreement between the methods tested was observed for all sera tested: ELISA x dot-ELISA: 95.1%, ELISA x dot-DIA: 92.7% and dot-ELISA x dot-DIA: 97.6%. In this study, dot-DIA proved to be a feasible, sensitive, rapid and practical test for the diagnosis of shcistosomiasis.

【 授权许可】

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