Utilidad diagnóstica de ELISA IgG, IgM, IgA y Elisa avidez de IgG en toxoplasmosis reciente y crónica

Toxoplasmosis, a world-wide zoonotic infection, is generally asymptomatic and benign in immunocompetent individuals, but it can be serious in immunodeficiencies particulary in patients with acquired immunodeficiency syndrome and in children infected in utero. So, it is important to dispose methods w...

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Autores principales: Contreras,María del C., Sandoval,Lea, Salinas,Patricia, Muñoz,Paula, Vargas,Susana
Lenguaje:Spanish / Castilian
Publicado: Programa de Parasitología. Instituto de Ciencias Biomédicas. Facultad de Medicina. Universidad de Chile 2000
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-94022000000100005
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spelling oai:scielo:S0365-940220000001000052005-07-12Utilidad diagnóstica de ELISA IgG, IgM, IgA y Elisa avidez de IgG en toxoplasmosis reciente y crónicaContreras,María del C.Sandoval,LeaSalinas,PatriciaMuñoz,PaulaVargas,Susana toxoplasmosis inmunodiagnóstico ELISA IgG ELISA IgM ELISA IgA ELISA avidez de IgG Toxoplasmosis, a world-wide zoonotic infection, is generally asymptomatic and benign in immunocompetent individuals, but it can be serious in immunodeficiencies particulary in patients with acquired immunodeficiency syndrome and in children infected in utero. So, it is important to dispose methods which permit discriminate between recent and chronic infections. In order to contribute to improve the diagnosis of toxoplasmosis ELISA IgG, IgM, IgA and ELISA IgG avidity were performed in 15 and 24 sera from patients suspected of having acute and chronic infection respectively, according dye test (DT) titres. ELISA IgG was positive in both groups, ELISA IgM was positive in 78.6 and 58.3% respectively, while ELISA IgA was positive in 85.7 and 33.3% of recent and chronic group respectively. In those sera with low IgG avidity ( 18.8%) we found specific IgM in 71.5 and 4.2% and IgA in 78.6 and 0.0% of recent and chronic groups respectively. Parallely, 208 sera samples were clasified according to the results of DT, indirect hemagglutination and complement fixation tests in the following groups: acute (97), intermediate (36), chronic (35) and negative (40). The results were: acute (96.9-64.9-55.6 and 65.9%); intermediate (97.2-63.8-44.4 and 47.2%); chronic (45.7-42.8- 5.7 and 34.3%) for IgG, IgM, IgA and low IgG avidity respectively. The use of both acute markers, IgA and low IgG avidity in the diagnosis of toxoplasmosis is discussed.info:eu-repo/semantics/openAccessPrograma de Parasitología. Instituto de Ciencias Biomédicas. Facultad de Medicina. Universidad de ChileBoletín chileno de parasitología v.55 n.1-2 20002000-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-94022000000100005es10.4067/S0365-94022000000100005
institution Scielo Chile
collection Scielo Chile
language Spanish / Castilian
topic toxoplasmosis
inmunodiagnóstico
ELISA IgG
ELISA IgM
ELISA IgA
ELISA avidez de IgG
spellingShingle toxoplasmosis
inmunodiagnóstico
ELISA IgG
ELISA IgM
ELISA IgA
ELISA avidez de IgG
Contreras,María del C.
Sandoval,Lea
Salinas,Patricia
Muñoz,Paula
Vargas,Susana
Utilidad diagnóstica de ELISA IgG, IgM, IgA y Elisa avidez de IgG en toxoplasmosis reciente y crónica
description Toxoplasmosis, a world-wide zoonotic infection, is generally asymptomatic and benign in immunocompetent individuals, but it can be serious in immunodeficiencies particulary in patients with acquired immunodeficiency syndrome and in children infected in utero. So, it is important to dispose methods which permit discriminate between recent and chronic infections. In order to contribute to improve the diagnosis of toxoplasmosis ELISA IgG, IgM, IgA and ELISA IgG avidity were performed in 15 and 24 sera from patients suspected of having acute and chronic infection respectively, according dye test (DT) titres. ELISA IgG was positive in both groups, ELISA IgM was positive in 78.6 and 58.3% respectively, while ELISA IgA was positive in 85.7 and 33.3% of recent and chronic group respectively. In those sera with low IgG avidity ( 18.8%) we found specific IgM in 71.5 and 4.2% and IgA in 78.6 and 0.0% of recent and chronic groups respectively. Parallely, 208 sera samples were clasified according to the results of DT, indirect hemagglutination and complement fixation tests in the following groups: acute (97), intermediate (36), chronic (35) and negative (40). The results were: acute (96.9-64.9-55.6 and 65.9%); intermediate (97.2-63.8-44.4 and 47.2%); chronic (45.7-42.8- 5.7 and 34.3%) for IgG, IgM, IgA and low IgG avidity respectively. The use of both acute markers, IgA and low IgG avidity in the diagnosis of toxoplasmosis is discussed.
author Contreras,María del C.
Sandoval,Lea
Salinas,Patricia
Muñoz,Paula
Vargas,Susana
author_facet Contreras,María del C.
Sandoval,Lea
Salinas,Patricia
Muñoz,Paula
Vargas,Susana
author_sort Contreras,María del C.
title Utilidad diagnóstica de ELISA IgG, IgM, IgA y Elisa avidez de IgG en toxoplasmosis reciente y crónica
title_short Utilidad diagnóstica de ELISA IgG, IgM, IgA y Elisa avidez de IgG en toxoplasmosis reciente y crónica
title_full Utilidad diagnóstica de ELISA IgG, IgM, IgA y Elisa avidez de IgG en toxoplasmosis reciente y crónica
title_fullStr Utilidad diagnóstica de ELISA IgG, IgM, IgA y Elisa avidez de IgG en toxoplasmosis reciente y crónica
title_full_unstemmed Utilidad diagnóstica de ELISA IgG, IgM, IgA y Elisa avidez de IgG en toxoplasmosis reciente y crónica
title_sort utilidad diagnóstica de elisa igg, igm, iga y elisa avidez de igg en toxoplasmosis reciente y crónica
publisher Programa de Parasitología. Instituto de Ciencias Biomédicas. Facultad de Medicina. Universidad de Chile
publishDate 2000
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0365-94022000000100005
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