Aspects of the granulomatous reaction in the liver of mice infected and reinfected with two different geographical strains of Schistosoma mansoni

In this study, which was undertaken in relation to the histopathologic behavior of two different strains (LE-Belo Horizonte, MG and SJ - São José dos Campos, SP) in infections and reinfections (homologous or heterologous) with Schistosoma mansoni, the authors confirmed a more accentuated pathogenici...

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Main Authors: Pedro Raso, Paulo Marcos Z. Coelho, Nivaldo H. Toppa, Rômulo T. Mello
Format: Article
Language:English
Published: Sociedade Brasileira de Medicina Tropical (SBMT) 1994-12-01
Series:Revista da Sociedade Brasileira de Medicina Tropical
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86821994000400004
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spelling doaj-f50b45034e4842e7ac347e803991c4e72020-11-24T22:25:06ZengSociedade Brasileira de Medicina Tropical (SBMT)Revista da Sociedade Brasileira de Medicina Tropical0037-86821678-98491994-12-01274221226Aspects of the granulomatous reaction in the liver of mice infected and reinfected with two different geographical strains of Schistosoma mansoniPedro RasoPaulo Marcos Z. CoelhoNivaldo H. ToppaRômulo T. MelloIn this study, which was undertaken in relation to the histopathologic behavior of two different strains (LE-Belo Horizonte, MG and SJ - São José dos Campos, SP) in infections and reinfections (homologous or heterologous) with Schistosoma mansoni, the authors confirmed a more accentuated pathogenicity of the SJ strain. All the reinfections showed the presence of typical granulomas of the acute phase, when performed either with the same strain (homologous) or with a different strain (heterologous) of the parasite of the primo infection. The possible mechanisms responsible for reactivation of the immunopathologic response in reinfections are discussed.<br>No presente estudo, verificou-se o comportamento histopatológico das infecções e reinfecções, homólogas ou heterólogas, das cepas LE (Belo Horizonte, MG) e SJ (São José dos Campos, SP) de Schistosoma mansoni. Confirmou-se uma maior patogenicidade da cepa SJ de S. mansoni. As reinfecções, independentemente de terem sido feitas com a mesma cepa (homóloga) ou cepa diferente da primo infecção (heteróloga) do parasito, mostraram a presença de granulomas típicos da fase aguda. São discutidos os possíveis mecanismos responsáveis pela reagudização da resposta imunopatológica nas reinfecções.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86821994000400004GranulomaReação granulomatosaSchistosoma mansoniCepas geográficasGranulomaGranulomatous reactionSchistosoma mansoniGeographical strains
collection DOAJ
language English
format Article
sources DOAJ
author Pedro Raso
Paulo Marcos Z. Coelho
Nivaldo H. Toppa
Rômulo T. Mello
spellingShingle Pedro Raso
Paulo Marcos Z. Coelho
Nivaldo H. Toppa
Rômulo T. Mello
Aspects of the granulomatous reaction in the liver of mice infected and reinfected with two different geographical strains of Schistosoma mansoni
Revista da Sociedade Brasileira de Medicina Tropical
Granuloma
Reação granulomatosa
Schistosoma mansoni
Cepas geográficas
Granuloma
Granulomatous reaction
Schistosoma mansoni
Geographical strains
author_facet Pedro Raso
Paulo Marcos Z. Coelho
Nivaldo H. Toppa
Rômulo T. Mello
author_sort Pedro Raso
title Aspects of the granulomatous reaction in the liver of mice infected and reinfected with two different geographical strains of Schistosoma mansoni
title_short Aspects of the granulomatous reaction in the liver of mice infected and reinfected with two different geographical strains of Schistosoma mansoni
title_full Aspects of the granulomatous reaction in the liver of mice infected and reinfected with two different geographical strains of Schistosoma mansoni
title_fullStr Aspects of the granulomatous reaction in the liver of mice infected and reinfected with two different geographical strains of Schistosoma mansoni
title_full_unstemmed Aspects of the granulomatous reaction in the liver of mice infected and reinfected with two different geographical strains of Schistosoma mansoni
title_sort aspects of the granulomatous reaction in the liver of mice infected and reinfected with two different geographical strains of schistosoma mansoni
publisher Sociedade Brasileira de Medicina Tropical (SBMT)
series Revista da Sociedade Brasileira de Medicina Tropical
issn 0037-8682
1678-9849
publishDate 1994-12-01
description In this study, which was undertaken in relation to the histopathologic behavior of two different strains (LE-Belo Horizonte, MG and SJ - São José dos Campos, SP) in infections and reinfections (homologous or heterologous) with Schistosoma mansoni, the authors confirmed a more accentuated pathogenicity of the SJ strain. All the reinfections showed the presence of typical granulomas of the acute phase, when performed either with the same strain (homologous) or with a different strain (heterologous) of the parasite of the primo infection. The possible mechanisms responsible for reactivation of the immunopathologic response in reinfections are discussed.<br>No presente estudo, verificou-se o comportamento histopatológico das infecções e reinfecções, homólogas ou heterólogas, das cepas LE (Belo Horizonte, MG) e SJ (São José dos Campos, SP) de Schistosoma mansoni. Confirmou-se uma maior patogenicidade da cepa SJ de S. mansoni. As reinfecções, independentemente de terem sido feitas com a mesma cepa (homóloga) ou cepa diferente da primo infecção (heteróloga) do parasito, mostraram a presença de granulomas típicos da fase aguda. São discutidos os possíveis mecanismos responsáveis pela reagudização da resposta imunopatológica nas reinfecções.
topic Granuloma
Reação granulomatosa
Schistosoma mansoni
Cepas geográficas
Granuloma
Granulomatous reaction
Schistosoma mansoni
Geographical strains
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86821994000400004
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