1990
DOI: 10.1590/s0036-46651990000400001
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Imunodiagnóstico da leptospirose humana através do teste ELISA-IgM, empregando-se diferentes preparações antigênicas a partir de sorotipos prevalentes de Leptospira interrogans

Abstract: A comparative study among different serovars of Leptospira interrogans was performed in order to prepare antigens to detect IgM antibodies by ELISA in early and late phase of human leptospirosis. Ten serovars were chosen among the most prevalent detected by microscopic seroagglutination (SAM) in São Paulo city. Using ELISA-IgM five of them showed better results (canicola, hebdomadis, icterohaemorrhagiae, cynopteri and brasiliensis). These ones were also studied in a pool. The non-treated antigens showed higher… Show more

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Cited by 13 publications
(6 citation statements)
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“…), and hydrogen peroxide were used as the indicator system. This leptospiral antigen was prepared by the method described by Adler et al 2and modified by Silva et al (9,10) at the Instituto Adolfo Lutz, where it is being introduced as a method for the laboratory diagnosis of leptospirosis.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…), and hydrogen peroxide were used as the indicator system. This leptospiral antigen was prepared by the method described by Adler et al 2and modified by Silva et al (9,10) at the Instituto Adolfo Lutz, where it is being introduced as a method for the laboratory diagnosis of leptospirosis.…”
Section: Methodsmentioning
confidence: 99%
“…The "gold standard" serodiagnostic method, the microscopic agglutination test (MAT), is specific, but its inherent complexity limits its use to experienced personnel in central laboratory facilities (8). To overcome this problem, some potentially useful screening tests for use in all routine laboratories have been proposed (2,8,(10)(11)(12)(13)(14).…”
mentioning
confidence: 99%
“…O teste de ELISA-IgM tem se mostrado um teste sensível, reprodutível e de fácil realização, além de detectar anticorpos mais precocemente do que o MAT (AHMAD et al, 2005, FAINE et al, 1999, SILVA et al, 1990.…”
Section: Enzyme-linked Immunosorbent Assay)unclassified
“…4,45,56,57,95,99,109,110 Testes que utilizam leptospiras patogênicas prevalentes em determinado local de estudo podem não ser eficazes fora dessa área geográfica. 3,111…”
Section: Métodos Sorológicosunclassified
“…Diversos testes rápidos com plataformas variadas, utilizando diferentes preparações de antígenos e anticorpos conjugados foram desenvolvidos e avaliados para o diagnóstico da leptospirose, sendo vários deles distribuídos comercialmente. Testes como Dip-S-Tick (PanBio, Inc.), LeptoTek Dri-Dot (Biomérieux), Leptocheck WB (Zephyr Biomedicals), SD Bioline Leptospira (Abbott), Leptorapide (Linnodee Diagnostics), entre outros testes comerciais e não comerciais, foram comparados ao teste de MAT e a testes de ELISA IgM.Esses trabalhos apresentaram uma grande variação de sensibilidade e especificidade, porém, independentemente do método utilizado, seja ELISA ou testes rápidos, pode-se concluir que esses ensaios são realmente úteis como teste de triagem para o diagnóstico da leptospirose por serem muito simples e precoces na detecção da leptospirose em relação ao MAT 92,94,100,104,105,[109][110][111][112][113][114][115][116][117][118][119][120]. Testes de dot-blot foram desenvolvidos para o diagnóstico de diversas doenças a partir de modificações do teste de ELISA, substituindo a microplaca de poliestireno por…”
unclassified