Human Acute Toxoplasmosis
Mostrando 1-12 de 38 artigos, teses e dissertações.
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1. Viral metagenomics performed in patients with acute febrile syndrome during Toxoplasma gondii outbreak in south Brazil
ABSTRACT Toxoplasmosis is a zoonotic infection caused by the protozoan parasite Toxoplasma gondii. The infection is widely disseminated in the human population and is usually benign or asymptomatic. Systemic T. gondii infection presents risks for pregnant women and AIDS patients. Although rare, T. gondii can cause outbreaks in urban centers. The origin of th
Braz J Infect Dis. Publicado em: 2020-06
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2. Organizing pneumonia in a patient with hodgkin's lymphoma and large B cell lymphoma: a rare association
ABSTRACT Toxoplasmosis is a zoonotic infection caused by the protozoan parasite Toxoplasma gondii. The infection is widely disseminated in the human population and is usually benign or asymptomatic. Systemic T. gondii infection presents risks for pregnant women and AIDS patients. Although rare, T. gondii can cause outbreaks in urban centers. The origin of th
Hematol., Transfus. Cell Ther.. Publicado em: 2020-06
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3. Investigation and environmental analysis of samples from outbreak of toxoplasmosis at research institution in Londrina, Paraná, Brazil, 2016
Resumo O objetivo deste estudo foi relatar um surto de toxoplasmose humana em uma instituição de pesquisa em Londrina, Paraná, no período de dezembro de 2015 a fevereiro de 2016. Amostras de sangue de 26 indivíduos sintomáticos foram coletadas e o imunoensaio de quimioluminescência de micropartículas foi realizado para detectar IgM, IgG e teste de av
Rev. Bras. Parasitol. Vet.. Publicado em: 02/09/2019
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4. Avaliação do desempenho da pesquisa de anticorpos anti-Toxoplasma por citometria de fluxo no diagnóstico da toxoplasmose aguda humana
O diagnóstico da toxoplasmose baseia-se principalmente, na detecção de anticorpos específicos em soro de pacientes, por meio de ensaios sorológicos. As maiores limitações referem-se à alta prevalência de anticorpos de IgG e IgM persistentes por longos períodos, dificultando o diagnóstico da infecção aguda. Portanto, este estudo teve como objetiv
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 05/03/2010
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5. AvaliaÃÃo do antÃgeno SAG2a recombinante de Toxoplasma gondii como um potencial marcador diagnÃstico para Toxoplasmose humana aguda
Recombinant proteins have been used for the serological diagnosis of Toxoplasma gondii infection to differentiate between the acute and chronic phases of toxoplasmosis. In this study, we evaluated the reactivity of IgG and IgG1 antibodies by immunoassays in acute and chronic phase sera from patients with toxoplasmosis against two recombinant antigens cloned
Publicado em: 2007
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6. Infecção por Toxoplasma gondii e Neospora caninum em cães e lobos-guará: soroepidemiologia e imunodiagnóstico / Infecção por Toxoplasma gondii e Neospora caninum em cães e lobos-guará: soroepidemiologia e imunodiagnóstico
Toxoplasma gondii and Neospora caninum are two closely related apicomplexan parasites, even though phylogenetic, ultrastructural, antigenic and biological differences have been already described. Seroepidemiological studies have demonstrated that T. gondii infection is often in domestic and sylvatic canids, whereas N. caninum infection is less common, but it
Publicado em: 2006
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7. Detection of Toxoplasma gondii DNA by polymerase chain reaction in experimentally desiccated tissues
Despite toxoplasmosis being a common infection among human and other warm-blooded animals worldwide, there are no findings about Toxoplasma gondii evolutionary forms in ancient populations. The molecular techniques used for amplification of genetic material have allowed recovery of ancient DNA (aDNA) from parasites contained in mummified tissues. The applica
Memórias do Instituto Oswaldo Cruz. Publicado em: 2004-03
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8. Effect of Toxoplasma gondii infection on immune related tissue gene expression in pigs / Efeito da infecção pelo Toxoplasma gondii na expressão de genes associados à resposta imune em tecidos de suínos
Toxoplasmosis is a widespread zoonosis affecting humans and large range of animal species worldwide. Serological surveillance indicates high infection rates, but rarely is associated to severe disease. T. gondii (Tg) infection induces a strong IFN-γ dominated immune response that rapidly controls parasite replication. Pig resistance to toxoplasmosis was
Publicado em: 2004
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9. Detection of antibodies to the 97 kDa component of Toxoplasma gondii in samples of human serum
This study was carried out to investigate the immune response against 97 kDa (p97) molecular marker of Toxoplasma gondii that has been characterized as a cytosolic protein and a component of the excreted-secreted antigens from this parasite. A total of 60 serum samples from patients were analyzed by enzime-linked immunosorbent assay and Western blot for toxo
Memórias do Instituto Oswaldo Cruz. Publicado em: 2002-10
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10. Usefulness of Toxoplasma gondii-Specific Recombinant Antigens in Serodiagnosis of Human Toxoplasmosis
Toxoplasma gondii SAG1, GRA1, and GRA7 recombinant antigens may be regarded as tools for the detection of T. gondii immunoglobulin G antibodies in persons with chronic and acute toxoplasmosis. GRA7 is more correlated with acute toxoplasmosis. A combination of these antigens will increase the sensitivity of enzyme-linked immunosorbent assays.
American Society for Microbiology.
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11. Presence of gamma interferon in human acute and congenital toxoplasmosis.
The production of gamma interferon in acute acquired and congenital toxoplasmosis was studied. Gamma interferon was produced at significant titers (P less than 0.001) in the course of both congenital toxoplasmosis and acquired toxoplasmosis at an early stage of infection, when Toxoplasma gondii was multiplying. Its presence in fetal blood was correlated with
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12. Chronological Development of Cellular Immunity in Human Toxoplasmosis
A dichotomy between the resolution of clinical illness in acute toxoplasmosis and the responsiveness of B and T lymphocytes to toxoplasma antigens is described.