Expec Extraintestinal Pathogenic Escherichia Coli
Mostrando 1-12 de 19 artigos, teses e dissertações.
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1. Antimicrobial resistance, diarrheagenic and avian pathogenic virulence genes in Escherichia coli from poultry feed and the ingredients
RESUMO Escherichia coli diarreiogênicas (DEC) e patogênicas para aves (APEC) são associadas a infecções intestinais e extraintestinais (ExPEC), respectivamente. O objetivo do presente trabalho foi avaliar a sensibilidade antimicrobiana, a presença de genes que codificam os fatores de virulência relacionados à DEC e APEC, e a classificação filogené
Arq. Bras. Med. Vet. Zootec.. Publicado em: 13/12/2019
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2. Invasin
gimB found in a bovine intestinalEscherichia coli with an adherent and invasive profileThe invasin
gimB (genetic island associated with human newborn meningitis) is usually found in ExPEC (Extraintestinal PathogenicEscherichia coli ) such as UPEC (uropathogenicE. coli ), NMEC (neonatal meningitisE. coli ) and APEC (avian pathogenicE. coli ). In NMEC,Braz. J. Microbiol.. Publicado em: 2015-09
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3. Assessing the diversity of the virulence potential ofEscherichia coli isolated from bacteremia in São Paulo, Brazil
Most of the knowledge of the virulence determinants of extraintestinal pathogenicEscherichia coli (ExPEC) comes from studies with human strains causing urinary tract infections and neonatal meningitis and animal strains causing avian colibacillosis. In this research, we analyzed the phylogenetic background, the presence of 20 ExPEC virulence factors, and the
Braz J Med Biol Res. Publicado em: 15/10/2013
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4. Estudo de genes do Sistema de Secreção tipo VI em uma linhagem de Escherichia coli patogênica para aves (APEC) / Study of Type VI Secretion System genes in an avian Escherichia coli pathogenic strain (APEC)
Avian pathogenic Escherichia coli (APEC) strains frequently cause extraintestinal infections and are responsible for significant economic losses in the poultry industry worldwide. APEC isolates are closely related to human extraintestinal pathogenic E. coli (ExPEC) strains and may also act as pathogens for humans. Known APEC virulence factors include adhesin
Publicado em: 2011
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5. Formação de biofilme em amostras de Escherichia coli associada a sepse (SEPEC) : caracterização fenotipica, genotipica e filogenia / Biofilm formation by sepsis associated Escherichia coli (SEPEC) strains : genotypic, phenotypic characterization and phylogeny
Extraintestinal Pathogenic Escherichia coli (ExPEC) form a heterogeneous group as the bacterial virulence factors involved in its pathogenicity and local infection in the host. Our work aimed study the phenotypic and genotypic characteristics of biofilm formation and phylogeny of sepsis-associated Escherichia coli Human (SEPEC), as well as their patterns of
Publicado em: 2010
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6. Characterization of ExPEC ("Extraintestinal Pathogenic Escherichia coli") isolated from dogs and cats with uinary tract infections (UTI). / Pesquisa e caracterização de amostras de ExPEC ("Extraintestinal Pathogenic Escherichia coli ") isoladas de infecções do trato urinário (ITU) de cães e gatos.
As ITU são as mais freqüentes infecções ocasionadas por ExPEC. Entre os fatores de virulência (FV) encontram-se nestas cepas adesinas, invasinas, toxinas, sideróforos, e evasinas, localizados em plasmídios ou ilhas de patogenecidade. O objetivo deste estudo foi caracterizar 45 cepas de E. coli isoladas de 33 cães e 7 gatos com ITU, quanto aos sorotip
Publicado em: 2008
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7. Detection of cytotoxic necrotizing factor types 1 and 2 among fecal Escherichia coli isolates from brazilian children with and without diarrhea
The enteropathogenic role of cytotoxic necrotizing factor (CNF)-producing Escherichia coli was investigated by searching cnf genes among 2074 isolates from 200 children with and 200 without acute diarrhea in Brazil. Fourteen (7%) cases versus 10 (5%) control children carried at least one cnf positive isolate (P = 0.50) and most isolates expressed CNF type 1.
Memórias do Instituto Oswaldo Cruz. Publicado em: 2004-02
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8. Yersinia High-Pathogenicity Island Contributes to Virulence in Escherichia coli Causing Extraintestinal Infections
The Yersinia high-pathogenicity island (HPI) encodes an iron uptake system mediated by the siderophore yersiniabactin (Ybt) and confers the virulence of highly pathogenic Yersinia species. This HPI is also widely distributed in human pathogenic members of the family of Enterobacteriaceae, above all in extraintestinal pathogenic Escherichia coli (ExPEC). In t
American Society for Microbiology.
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9. Canine Feces as a Reservoir of Extraintestinal Pathogenic Escherichia coli
To test the canine reservoir hypothesis of extraintestinal pathogenic Escherichia coli (ExPEC), 63 environmental canine fecal deposits were evaluated for the presence of ExPEC by a combination of selective culturing, extended virulence genotyping, hemagglutination testing, O serotyping, and PCR-based phylotyping. Overall, 30% of canine fecal samples (56% of
American Society for Microbiology.
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10. PCR for Specific Detection of H7 Flagellar Variant of fliC among Extraintestinal Pathogenic Escherichia coli
A newly developed PCR-based assay for the H7 variant of the Escherichia coli flagellin gene, fliC, was 100% sensitive and specific in comparison with serology and probe hybridization. It revealed broad conservation of the H7 fliC variant among phylogenetically diverse lineages of extraintestinal pathogenic E. coli (ExPEC) and superseded serotyping for certai
American Society for Microbiology.
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11. Extended Virulence Genotype of Pathogenic Escherichia coli Isolates Carrying the afa-8 Operon: Evidence of Similarities between Isolates from Humans and Animals with Extraintestinal Infections
The afimbrial AfaE-VIII adhesin is common among Escherichia coli isolates from calves with intestinal and/or extraintestinal infections and from humans with sepsis or pyelonephritis. The virulence genotypes of 77 Escherichia coli afa-8 isolates from farm animals and humans were compared to determine whether any trait of commonality exists between isolates of
American Society for Microbiology.
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12. Colonization with Extraintestinal Pathogenic Escherichia coli among Nursing Home Residents and Its Relationship to Fluoroquinolone Resistance
In a cross-sectional fecal prevalence survey involving 49 residents of a Veterans Affairs nursing home, 59% of subjects were colonized with extraintestinal pathogenic Escherichia coli (ExPEC), 22% were colonized with adhesin-positive E. coli, and 51% were colonized with fluoroquinolone-resistant E. coli. Among 80 unique isolates, adhesins correlated negative
American Society for Microbiology.