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Artigo
The development of an enzyme-linked immunosorbent assay for Trypanosoma vivax antibodies and its use in epidemiological surveys
There are data indicating that the distribution of Trypanosoma vivax in the Brazilian territory is expanding with potential to reach other areas, where the vectors are present. The detection of anti-trypanosomal antibodies in serum provides important information of the trypanosomal status in cattle...
Autor principal: | MADRUGA, Cláudio Roberto |
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Outros Autores: | ARAÚJO, Flábio Ribeiro de, CAVALCANTE, Gustavo Góes, MARTINS, Charles Ferreira, BARBOSA, Imke Barbara Pfeifer, RIBEIRO, Laura Rios, KESSLER, Raul Henrique, SOARES, Cleber Oliveira, MIGUITA, Midori, MELO, Elaine Silva de Pádua, ALMEIDA, Robson Ferreira Cavalcante de, LIMA JUNIOR, Manoel Sebastião da Costa |
Grau: | Artigo |
Idioma: | por |
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Universidade Federal do Pará
2017
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http://repositorio.ufpa.br/jspui/handle/2011/8889 |
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ir-2011-88892017-10-16T12:27:24Z The development of an enzyme-linked immunosorbent assay for Trypanosoma vivax antibodies and its use in epidemiological surveys MADRUGA, Cláudio Roberto ARAÚJO, Flábio Ribeiro de CAVALCANTE, Gustavo Góes MARTINS, Charles Ferreira BARBOSA, Imke Barbara Pfeifer RIBEIRO, Laura Rios KESSLER, Raul Henrique SOARES, Cleber Oliveira MIGUITA, Midori MELO, Elaine Silva de Pádua ALMEIDA, Robson Ferreira Cavalcante de LIMA JUNIOR, Manoel Sebastião da Costa Enzimas Trypanosoma vivax Pesquisas epidemiológicas Anticorpos Epistemologia There are data indicating that the distribution of Trypanosoma vivax in the Brazilian territory is expanding with potential to reach other areas, where the vectors are present. The detection of anti-trypanosomal antibodies in serum provides important information of the trypanosomal status in cattle herds. For this reason, an enzyme-linked immunosorbent assay (Tv-ELISA-Ab) with crude antigen from one Brazilian isolate of T. vivax was developed and evaluated. The sensitivity and specificity were respectively 97.6 and 96.9%. In the evaluation of cross-reactions, three calves inoculated with T. evansi trypimastigotes blood forms showed optical densities (OD) under the cut-off during the whole experimental period, except one at 45 days post-inoculation. With relation to Babesia bovis, B. bigemina, and Anaplasma marginale, which are endemic hemoparasites in the studied area, the cross-reactions were shown to be 5.7, 5.3, and 1.1%, respectively. The first serological survey of Pantanal and state of Pará showed that T. vivax is widespread, although regions within both areas had significantly different prevalences. Therefore, this Tv-ELISA-Ab may be a more appropriate test for epidemiological studies in developing countries because the diagnostic laboratories in most countries may be able to perform an ELISA, which is not true for polymerase chain reaction. 2017-07-21T14:00:32Z 2017-07-21T14:00:32Z 2006-11 Artigo de Periódico MADRUGA, Cláudio Roberto et al. The development of an enzyme-linked immunosorbent assay for Trypanosoma vivax antibodies and its use in epidemiological surveys. Memórias do Instituto Oswaldo Cruz, Rio de Janeiro, v. 101, n. 7, p. 801-807, nov. 2006. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0074-02762006000700016&lng=pt&nrm=iso>. Acesso em: 21 jul. 2017. <http://dx.doi.org/10.1590/S0074-02762006000700016>. 1678-8060 http://repositorio.ufpa.br/jspui/handle/2011/8889 por Memórias do Instituto Oswaldo Cruz Acesso Aberto application/pdf Universidade Federal do Pará Brasil UFPA |
institution |
Repositório Institucional - Universidade Federal do Pará |
collection |
RI-UFPA |
language |
por |
topic |
Enzimas Trypanosoma vivax Pesquisas epidemiológicas Anticorpos Epistemologia |
spellingShingle |
Enzimas Trypanosoma vivax Pesquisas epidemiológicas Anticorpos Epistemologia MADRUGA, Cláudio Roberto The development of an enzyme-linked immunosorbent assay for Trypanosoma vivax antibodies and its use in epidemiological surveys |
topic_facet |
Enzimas Trypanosoma vivax Pesquisas epidemiológicas Anticorpos Epistemologia |
description |
There are data indicating that the distribution of Trypanosoma vivax in the Brazilian territory is expanding with potential to reach other areas, where the vectors are present. The detection of anti-trypanosomal antibodies in serum provides important information of the trypanosomal status in cattle herds. For this reason, an enzyme-linked immunosorbent assay (Tv-ELISA-Ab) with crude antigen from one Brazilian isolate of T. vivax was developed and evaluated. The sensitivity and specificity were respectively 97.6 and 96.9%. In the evaluation of cross-reactions, three calves inoculated with T. evansi trypimastigotes blood forms showed optical densities (OD) under the cut-off during the whole experimental period, except one at 45 days post-inoculation. With relation to Babesia bovis, B. bigemina, and Anaplasma marginale, which are endemic hemoparasites in the studied area, the cross-reactions were shown to be 5.7, 5.3, and 1.1%, respectively. The first serological survey of Pantanal and state of Pará showed that T. vivax is widespread, although regions within both areas had significantly different prevalences. Therefore, this Tv-ELISA-Ab may be a more appropriate test for epidemiological studies in developing countries because the diagnostic laboratories in most countries may be able to perform an ELISA, which is not true for polymerase chain reaction. |
format |
Artigo |
author |
MADRUGA, Cláudio Roberto |
author2 |
ARAÚJO, Flábio Ribeiro de CAVALCANTE, Gustavo Góes MARTINS, Charles Ferreira BARBOSA, Imke Barbara Pfeifer RIBEIRO, Laura Rios KESSLER, Raul Henrique SOARES, Cleber Oliveira MIGUITA, Midori MELO, Elaine Silva de Pádua ALMEIDA, Robson Ferreira Cavalcante de LIMA JUNIOR, Manoel Sebastião da Costa |
author2Str |
ARAÚJO, Flábio Ribeiro de CAVALCANTE, Gustavo Góes MARTINS, Charles Ferreira BARBOSA, Imke Barbara Pfeifer RIBEIRO, Laura Rios KESSLER, Raul Henrique SOARES, Cleber Oliveira MIGUITA, Midori MELO, Elaine Silva de Pádua ALMEIDA, Robson Ferreira Cavalcante de LIMA JUNIOR, Manoel Sebastião da Costa |
title |
The development of an enzyme-linked immunosorbent assay for Trypanosoma vivax antibodies and its use in epidemiological surveys |
title_short |
The development of an enzyme-linked immunosorbent assay for Trypanosoma vivax antibodies and its use in epidemiological surveys |
title_full |
The development of an enzyme-linked immunosorbent assay for Trypanosoma vivax antibodies and its use in epidemiological surveys |
title_fullStr |
The development of an enzyme-linked immunosorbent assay for Trypanosoma vivax antibodies and its use in epidemiological surveys |
title_full_unstemmed |
The development of an enzyme-linked immunosorbent assay for Trypanosoma vivax antibodies and its use in epidemiological surveys |
title_sort |
development of an enzyme-linked immunosorbent assay for trypanosoma vivax antibodies and its use in epidemiological surveys |
publisher |
Universidade Federal do Pará |
publishDate |
2017 |
url |
http://repositorio.ufpa.br/jspui/handle/2011/8889 |
_version_ |
1832604281809666048 |
score |
11.755432 |