Antibody response in goats experimentally infected with Toxoplasma gondii |
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| Authors: | Vitor R W Ferreira A M Fux B |
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| Institution: | Departamento de Parasitologia do Instituto de Ciências Biológicas UFMG, Minas Gerais, Brazil. vitorrwa@mono.icb.ufmg.br |
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| Abstract: | Serum samples of five goats inoculated with Toxoplasma gondii were analyzed using the enzyme linked immunosorbent assay (ELISA), indirect hemagglutination (IHA) and western blotting (WB). Antibodies detected by ELISA peaked between 19 and 62 days after inoculation and persisted throughout the experiment with no association to parasitaemia. Using WB, the main antigens detected had molecular weights of approximately 68, 62, 50, 48, 42, 34, 28, 26, 22 and 19 kDa. Antibody titers of between 1:256 and 1:32000 were observed using IHA, with a significant drop in activity after treatment with 2-mercapto-ethanol between days 12 and 48. This coincided with the parasitaemic period that occurs between 5 and 64 days after inoculation. |
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