Intimin
Mostrando 1-12 de 133 artigos, teses e dissertações.
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1. Virulence factors and phylotyping of Escherichia coli isolated from non-diarrheic and diarrheic water buffalo calves
RESUMO: O objetivo foi determinar os fatores de virulência, os grupos filogenéticos e as possíveis relações entre os patovares e os grupos filogenéticos identificados de cepas de Escherichia coli isoladas de fezes de bezerros bubalinos. Um total de 217 amostras de E. coli foram identificadas a partir de cultura das fezes e submetidas a reação em cad
Cienc. Rural. Publicado em: 25/04/2019
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2. Occurrence of non-O157 Shiga toxin-encoding Escherichia coli in artisanal mozzarella cheese in Brazil: risk factor associated with food workers
Abstract Mozzarella cheese is considered a safe food due to the high temperature treatment used in the traditional process of stretching into hot water; however, a post-process contamination during the cheese manufacture or during the processing (before distribution) could occur. This study investigated the occurrence of Shiga toxin-encoding Escherichia coli
Food Sci. Technol. Publicado em: 30/06/2016
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3. Transferência de anticorpos reativos com intiminas α, β, γ de Escherichia coli pela placenta e aleitamento materno: determinação quantitativa em soros de recém-nascidos e soros e colostros de suas mães / Transference of antibodies reactive with intimins α, β and γ of Escherichia coli by placenta and breastfeeding: quantitative determination in the sera of newborns and the colostrum and sera of their mothers
Intimina é uma adesina de natureza protéica das bactérias diarreiogênicas Escherichia coli enteropatogenica (EPEC) e enterohemorrágica (EHEC), capazes de induzir a lesão \ attaching e effacing\ em enterócitos. Os principais subtipos de intiminas de EPEC e EHEC prevalentes no Brasil são α, β e γ. Nosso objetivo foi investigar a transfer
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/04/2010
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4. Vacinas de administração oral contra diarréia associada à Escherichia coli enteropatogênica baseada em linhagens geneticamente modificadas de Bacillus subtilis / Oral vaccines against diarrhea associated with enteropathogenic Escherichia coli strains based on genetically modified Bacillus subtilis strains
The objective of this work was the construction of genetically modified strains of B. subtilis able to express portions of intimin, the main component involved in colonization by enteropathogenic Escherichia coli strains (EPEC) as a strategy of oral vaccination against infectious diarrhea. The vaccines employed five regions of EPEC intimin and B. subtilis st
Publicado em: 2010
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5. Anticorpos anti-intimina: análise da reatividade dos anticorpos policlonal e monoclonal, clonagem e expressão do fragmento variável de cadeia simples (scFv) do anticorpo monoclonal / Anti-intimin antibodies: polyclonal and monoclonal reactivity analyzes, cloning and expression of single chain fragment variable (scFv) of monoclonal antibodies
Intimina é o principal fator de virulência envolvido na patogênese de Escherichia coli enteropatogênica (EPEC) e de Escherichia coli enterohemorrágica (EHEC). A detecção de EHEC e EPEC típica ou atípica é de fundamental importância na definição da conduta terapêutica das infecções promovidas por E. coli, que ainda são a principal causa de di
Publicado em: 2010
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6. Ecology, virulence factors and diversity of Escherichia coli isolated from ballast water, ports areas and bivalves samples in Brazil. / Ecologia, fatores associados à virulência e diversidade de Escherichia coli isolados de amostras de água de lastro, água de regiões portuárias e moluscos bivalves no Brasil.
Escherichia coli was isolated from ballast water, port areas water and bivalves samples. 49.6% (164/331) had multiple antibiotics resistant varied from 2 to 8 antibiotics. From seven virulence associated factors investigated: heat stable toxin (ST), heat labile toxin (LT), aggregative adhesion (EAEC), invasion factor (INV), Shiga-like I toxin (STx-1), Shiga-
Publicado em: 2009
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7. Production and characterization of monoclonal antibodies against the identical region of LigA and LigB proteins from Leptospira interrogans / Produção e caracterização de anticorpos monoclonais contra a região idêntica das proteínas LigA e LigB de Leptospira interrogans
Leptospirosis is a zoonotic disease caused by pathogenic bacteria belonging to the Leptospira genus. Several mammals may carry the agent, and rats are the most important source of human infection in urban settings. The wide spectrum of clinical manifestations varies from mild cases, with fever and headaches, to severe presentations, with liver and kidney fai
Publicado em: 2009
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8. Escherichia coli produtora de toxina Shiga ( STEC): marcadores de Virulência e análise clonal. / Shiga toxin-producing Escherichia coli (STEC): virulence markers and clonal analysis.
Forty eigth Shiga toxin-producing Escherichia coli (STEC) strains, the majority from human origin, and thirty non-STEC strains carrying eae and belonging to the same serogroups of STEC strains, and isolated between 1976 and 2003 were studied. Phenotypical traits, virulence characteristics and genetic diversity were evaluated. The majority of STEC strains was
Publicado em: 2006
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9. Seric antibodies anti-hemorrhagic Escherichia coli (EHEC) in healthy Brazilian adults / Anticorpos séricos anti Escherichia coli enterohemorrágica (EHEC) em adultos saudáveis da Grande São Paulo
Gastroenteritis is still an important public health problem in developing countries and Escherichia coli are frequent agents of diarrhea. Brazilian adults present antibodies reactive with the principal virulence factors of enteropathogenic E. coli (EPEC), which have many genetic and antigenic similarities with enterohemorrhagic E. coli (EHEC), that may be re
Publicado em: 2005
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10. Isolamento e caraterização genotipica e fenotipica de amostras de Escherichia coli isoladas de bezerros no estado de São Paulo, Brasil
Ninety eight strains of Escheríchía colí fTom 264 diarrheic calves and 282 hea1thy ones were studied. Screening was made based on the presence of genes eae, stx or both. These 98 strains were also tested for presence of genes encoding toxins: LT-I, LT-II, STa, STh, CNFl, CNF2, EASTl and Ehly. Twenty seven diarrheic calves (10,2%) were positive for stx gen
Publicado em: 2004
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11. Expression of Intimin γ from Enterohemorrhagic Escherichia coli in Citrobacter rodentium
The carboxy-terminal 280 amino acids (Int280) of the bacterial adhesion molecule intimin include the receptor-binding domain. At least five different types of Int280, designated α, β, γ, δ, and ɛ, have been described based on sequence variation in this region. Importantly, the intimin types are associated with different evolutionary branches and contrib
American Society for Microbiology.
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12. Genetic Diversity of Intimin Genes of Attaching and Effacing Escherichia coli Strains
In this study, we determined the sequences of four intimin variant genes detected in attaching and effacing Escherichia coli isolates of human origin. Three of them were novel and were designated eae-η (eta), eae-ι (iota), and eae-κ (kappa). The fourth was identical to the recently described eae-ζ (zeta), isolated from a bovine E. coli O84:NM isolate. We
American Society for Microbiology.