T Gondii Strains
Mostrando 1-12 de 53 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. Pathogenicity and phenotypic sulfadiazine resistance of Toxoplasma gondii isolates obtained from livestock in northeastern Brazil
Toxoplasma gondii is the causative protozoan agent of toxoplasmosis, which is a common infection that is widely distributed worldwide. Studies revealed stronger clonal strains in North America and Europe and genetic diversity in South American strains. Our study aimed to differentiate the pathogenicity and sulfadiazine resistance of three T. gondii isolates
Mem. Inst. Oswaldo Cruz. Publicado em: 03/06/2016
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4. ISOLATION AND GENOTYPING OF Toxoplasma gondii IN SERONEGATIVE URBAN RATS AND PRESENCE OF ANTIBODIES IN COMMUNICATING DOGS IN BRAZIL
The role of rodents in the epidemiology of toxoplasmosis was investigated in Londrina, Paraná State, Brazil. One hundred and eighty-one Rattus rattus and one Mus musculus were caught in 37 places. Blood and tissues were collected and submitted to the indirect fluorescence antibody test (IFAT) and the bioassay. Serum samples from 61 contacting dogs were also
Rev. Inst. Med. trop. S. Paulo. Publicado em: 08/04/2016
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5. Caracterização molecular de isolados de Toxoplasma gondii obtidos de crianças com toxoplasmose congênita no Estado de Minas Gerais
Toxoplasma gondii is a widely distributed Apicomplexa parasite with great medical importance. Congenital toxoplasmosis has been associated with abortion and stillborn, debility and neonatal mortality. Toxoplasmosis can be diagnosed through serologic methods or by directed methods: parasite isolation in mice (bioassay) or Polimerase Chain Reaction assay (PCR)
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/05/2011
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6. Vaccines against Toxoplasma gondii: challenges and opportunities
Development of vaccines against Toxoplasma gondii infection in humans is of high priority, given the high burden of disease in some areas of the world like South America, and the lack of effective drugs with few adverse effects. Rodent models have been used in research on vaccines against T. gondii over the past decades. However, regardless of the vaccine co
Memórias do Instituto Oswaldo Cruz. Publicado em: 2009-03
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7. Toxoplasma gondii and the Immunity-Related GTPase (IRG) resistance system in mice: a review
The Immunity Related GTPases (IRG proteins) constitute a large family of interferon-inducible proteins that mediate early resistance to Toxoplasma gondii infection in mice. At least six members of this family are required for resistance of mice to virulent T. gondii strains. Recent results have shown that the complexity of the resistance arises from complex
Memórias do Instituto Oswaldo Cruz. Publicado em: 2009-03
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8. Experimental reinfection of BALB/c mice with different recombinant type I/III strains of Toxoplasma gondii: involvement of IFN-³ and IL-10
To assess reinfection of BALB/c mice with different Toxoplasma gondii strains, the animals were prime infected with the non-virulent D8 strain and challenged with virulent recombinant strains. Thirty days after challenge, brain cysts were obtained from surviving BALB/c mice and inoculated in Swiss mice to obtain tachyzoites for DNA extraction and PCR-RFLP an
Memórias do Instituto Oswaldo Cruz. Publicado em: 2009-03
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9. Spontaneous stage differentiation of mouse-virulent Toxoplasma gondii RH parasites in skeletal muscle cells: an ultrastructural evaluation
Although the predilection for Toxoplasma gondii to form cysts in the nervous system and skeletal and heart muscles has been described for more than fifty years, skeletal muscle cells (SkMCs) have not been explored as a host cell type to study the Toxoplasma-host cell interaction and investigate the intracellular development of the parasite. Morphological asp
Memórias do Instituto Oswaldo Cruz. Publicado em: 2009-03
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10. Functional characterization of Toxoplasma gondii strains. / Caracterização funcional de cepas de T. gondii.
Mais de 2 bilhões de pessoas em todo o mundo encontram-se infectadas com Toxoplasma gondii. Na região endêmica de Erechim, RS, cerca de 90% da população é soropositiva e cerca de 18% destes indivíduos apresentam lesões oculares com manifestações clínicas. A estrutura genética das populações do T. gondii tem sido bastante investigada, a despeito
Publicado em: 2009
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11. Apoptose e proliferação celular em células trofoblásticas (linhagem BeWo) são diferentemente moduladas pelas cepas de Toxoplasma gondii
Transplacental transmission causes one of the most severe forms of infection with protozoan parasite Toxoplasma gondii. The ability of the parasite to survive intracellularly largely depends on the blocking of different proapoptotic signaling cascade of its host cell. However, alterations in the incidence of apoptosis, during pregnancy, are associated with a
Publicado em: 2009
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12. Triagem neonatal como estratégia para o diagnóstico e tratamento precoces da toxoplasmose congênita em Belo Horizonte, Minas Gerais
Toxoplasmosis is prevalent in Brazil and presents regional variations depending on the lifestyle of the population. Primary toxoplasma infection during pregnancy can lead to neurological and ocular sequelae in the child, detectable after birth or manifesting later during growth. The severity of Latin American infected childrens ocular impairment, especially
Publicado em: 2008