Trypanosoma cruzi and experimental Chagas' disease: characterization of a stock isolated from a patient with associated digestive and cardiac form

A new Trypanosoma cruzi stock isolated from a patient in the chronic phase of Chagas' disease with the digestive and cardiac fortn of the disease was characterized by experimental infection in isogenic, susceptible, A/Sn strain mice. Parasitemia curves showed up to 1.7x10(6) parasites/ml and no...

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Main Authors: E.C. Oliveira, M.M.A. Stefani, A.O. Luquetti, E.F. Vêncio, M.A.R. Moreira, C. Souza, J.M. Rezende
Format: Article
Language:English
Published: Sociedade Brasileira de Medicina Tropical (SBMT) 1993-03-01
Series:Revista da Sociedade Brasileira de Medicina Tropical
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Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86821993000100006
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author E.C. Oliveira
M.M.A. Stefani
A.O. Luquetti
E.F. Vêncio
M.A.R. Moreira
C. Souza
J.M. Rezende
author_facet E.C. Oliveira
M.M.A. Stefani
A.O. Luquetti
E.F. Vêncio
M.A.R. Moreira
C. Souza
J.M. Rezende
author_sort E.C. Oliveira
collection DOAJ
description A new Trypanosoma cruzi stock isolated from a patient in the chronic phase of Chagas' disease with the digestive and cardiac fortn of the disease was characterized by experimental infection in isogenic, susceptible, A/Sn strain mice. Parasitemia curves showed up to 1.7x10(6) parasites/ml and no mortality was observed up to 300 days post infection. Specific IgM was found in mice in the acute phase up to 40 days and also in the chronic phase. IgG antibodies yvere detected in the acute and chronic phase. Histopathology examination demonstrated myotropism to the digestive tract muscle layers and to the heart.<br>Um novo estoque de Trypanosoma cruzi isolado de paciente chagásico crônico, com a forma digestiva e cardiaca da doença, foi caracterizado através de infecção experimental em camundongos isogênicosA/Sn suscetíveis à infecção chagásica. As curvas de parasitemia mostraram picos de até 1,7x10(6) parasitas/ml não se observando mortalidade até 300 dias pós infecção. Anticorpos da classe IgM foram encontrados na fase aguda até 40 dias e também na fase crônica e IgG foi detectada nas fases aguda e crônica. O exame histopatológico mostrou miotropismo para músculo liso do tubo digestivo e cardíaco.
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spelling doaj.art-4cd8d4da9c2146858356e4c6dc1d92852022-12-22T03:29:12ZengSociedade Brasileira de Medicina Tropical (SBMT)Revista da Sociedade Brasileira de Medicina Tropical0037-86821678-98491993-03-012612533Trypanosoma cruzi and experimental Chagas' disease: characterization of a stock isolated from a patient with associated digestive and cardiac formE.C. OliveiraM.M.A. StefaniA.O. LuquettiE.F. VêncioM.A.R. MoreiraC. SouzaJ.M. RezendeA new Trypanosoma cruzi stock isolated from a patient in the chronic phase of Chagas' disease with the digestive and cardiac fortn of the disease was characterized by experimental infection in isogenic, susceptible, A/Sn strain mice. Parasitemia curves showed up to 1.7x10(6) parasites/ml and no mortality was observed up to 300 days post infection. Specific IgM was found in mice in the acute phase up to 40 days and also in the chronic phase. IgG antibodies yvere detected in the acute and chronic phase. Histopathology examination demonstrated myotropism to the digestive tract muscle layers and to the heart.<br>Um novo estoque de Trypanosoma cruzi isolado de paciente chagásico crônico, com a forma digestiva e cardiaca da doença, foi caracterizado através de infecção experimental em camundongos isogênicosA/Sn suscetíveis à infecção chagásica. As curvas de parasitemia mostraram picos de até 1,7x10(6) parasitas/ml não se observando mortalidade até 300 dias pós infecção. Anticorpos da classe IgM foram encontrados na fase aguda até 40 dias e também na fase crônica e IgG foi detectada nas fases aguda e crônica. O exame histopatológico mostrou miotropismo para músculo liso do tubo digestivo e cardíaco.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86821993000100006Cepa de Trypanosoma cruziDoença de ChagasInfecção experimentalSorologiaHistopatologiaTrypanosoma cruzi strainChagas'diseaseExperimental infectionSerologyHistopathology
spellingShingle E.C. Oliveira
M.M.A. Stefani
A.O. Luquetti
E.F. Vêncio
M.A.R. Moreira
C. Souza
J.M. Rezende
Trypanosoma cruzi and experimental Chagas' disease: characterization of a stock isolated from a patient with associated digestive and cardiac form
Revista da Sociedade Brasileira de Medicina Tropical
Cepa de Trypanosoma cruzi
Doença de Chagas
Infecção experimental
Sorologia
Histopatologia
Trypanosoma cruzi strain
Chagas'disease
Experimental infection
Serology
Histopathology
title Trypanosoma cruzi and experimental Chagas' disease: characterization of a stock isolated from a patient with associated digestive and cardiac form
title_full Trypanosoma cruzi and experimental Chagas' disease: characterization of a stock isolated from a patient with associated digestive and cardiac form
title_fullStr Trypanosoma cruzi and experimental Chagas' disease: characterization of a stock isolated from a patient with associated digestive and cardiac form
title_full_unstemmed Trypanosoma cruzi and experimental Chagas' disease: characterization of a stock isolated from a patient with associated digestive and cardiac form
title_short Trypanosoma cruzi and experimental Chagas' disease: characterization of a stock isolated from a patient with associated digestive and cardiac form
title_sort trypanosoma cruzi and experimental chagas disease characterization of a stock isolated from a patient with associated digestive and cardiac form
topic Cepa de Trypanosoma cruzi
Doença de Chagas
Infecção experimental
Sorologia
Histopatologia
Trypanosoma cruzi strain
Chagas'disease
Experimental infection
Serology
Histopathology
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0037-86821993000100006
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