DOT-ELISA para pesquisa de anticorpos anti-Cysticercus cellulosae em líquido cefalorraquiano empregando uma nova fase sólida (tecido de poliéster tratado com resina polimerizada): dados preliminares

• Autor(a) principal: Vaz, Adelaide José
• Data de Publicação: 1990
• Outros Autores: Ferreira, Antonio Walter, Camargo, Mário E., Nakamura, Paulo Mutuko, Camargo, Eide Dias
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Revista do Instituto de Medicina Tropical de São Paulo
• Texto Completo: https://www.revistas.usp.br/rimtsp/article/view/28760
• topic: Neurocysticercosis; DOT-ELISA; Polyester-resin; Solid-phase; Cerebrospinal fluid

A dot enzyme-linked immunosorbent assay (DOT-ELISA) was developed to detect specific antibodies in cerebrospinal fluid (CSF) for human neurocysticercosis immunodiagnosis, with Cysticercus cellulosae antigen dotted on a new solid-phase. This was represented by sheets of a synthetic polyester fabric impregnated with a polymerized resin (N-methylol-acrylamide). A very stable preparation was thus obtained, the antigen being covalently bound by cross-linking with free N-methylol groups on the resin. Since robust, no special care was necessary for handling the solid-phase. The test could be performed at room-temperature. From 30 CSF samples assayed, 14 were positive, from a group of 15 cases of neurocysticercosis, with titers from 1 to 128; 15 other samples, from normals or other neurological diseases, were all negative. Test characteristics seem to indicate it as adequate for epidemiological surveys. A more detailed study on sensitivity, specificity, reproducibility and the use in serum samples is being conducted.