Upec Uropathogenic Escherichia Coli
Mostrando 1-12 de 22 artigos, teses e dissertações.
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1. Curli fimbria: an Escherichia coli adhesin associated with human cystitis
Abstract Escherichia coli is the major causative agent of human cystitis. In this study, a preliminary molecular analysis carried out by PCR (polymerase chain reaction) demonstrated that 100% of 31 E. coli strains isolated from patients with recurrent UTIs (urinary tract infections) showed the presence of the curli fimbria gene (csgA). Curli fimbria is known
Braz. J. Microbiol.. Publicado em: 2016-06
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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. Occurrence of genes encoding enterotoxins in uropathogenic Escherichia coli isolates
To determine the presence of some toxins of diarrheagenic Escherichia coli (DEC) in uropathogenic E. coli (UPEC), 138 urinary tract infection (UTI)-causing UPECs were analyzed. The astA, set, sen and cdtB genes were detected in 13 (9.4%), 2 (1.3%), 13 (9.4%) and 0 (0%) of UPEC isolates respectively. The results show that some genes encoding toxins can be tra
Braz. J. Microbiol.. Publicado em: 2015-03
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4. The efficacy of immediate versus delayed antibiotic administration on bacterial growth and biofilm production of selected strains of uropathogenic Escherichia coli and Pseudomonas aeruginosa
Purpose The treatment of urinary tract infections (UTI) with antibiotics is commonly used, but recurrence and antibiotic resistance have been growing and concerning clinicians. We studied whether the rapid onset of a protective biofilm may be responsible for the lack of effectiveness of antibiotics against selected bacteria. Materials and Methods Two establ
Int. braz j urol.. Publicado em: 2015-02
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5. Phylogenetic grouping and pathotypic comparison of urine and fecal Escherichia coli isolates from children with urinary tract infection
The aim of this study was to investigate the phylogenetic background and to assess hlyD (involved in the secretion of haemolysin A) and intll (encoding a class 1 integrase) in Escherichia coli isolates derived from urinary and fecal specimens. A total of 200 E. coli isolates was collected from patients presenting with urinary tract infection (UTI) during Sep
Braz. J. Microbiol.. Publicado em: 2014-06
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6. Análises in silico da filogenia e do perfil de genes associados à virulência, dos genomas de linhagens de Escherichia coli de origem aviária
As infecções causadas por linhagens de Escherichia coli de origem aviária (APEC) são responsáveis por perdas significativas na indústria avícola em todo mundo. Risco zoonótico tem sido atribuído às linhagens APEC, devido às semelhanças existentes entre elas e linhagens de E. coli patogênicas extraintestinais (ExPEC) de origem humana, causadoras
Pesq. Vet. Bras.. Publicado em: 2014-02
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7. Detection of integrons among multi-drug resistant (MDR) Escherichia coli strains isolated from clinical specimens in northern west of Iran
Transference of resistance determinants by integrons is one of the important factors that can contribute to the increase in multi-resistant bacteria. We determined the prevalence and class of integrons among multi-drug resistant (MDR) Escherichia coli strains isolated from clinical specimens in Tabriz teaching hospitals. Firstly, susceptibility of 140 isolat
Braz. J. Microbiol.. Publicado em: 2011-12
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8. Serogroups and virulence genotypes of Escherichia coli isolated from patients with sepsis
Sixty strains of Escherichia coli, isolated by hemoculture, from septicemic Brazilian patients were evaluated to determine their serogroup and invasivity to Vero cells. All 60 patients died within 2 days of hospitalization. Furthermore, the molecular study of the following extraintestinal pathogenic E. coli-associated virulence factor (VF) genes was performe
Brazilian Journal of Medical and Biological Research. Publicado em: 2008-10
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9. 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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10. Biologicals and moleculars methods in the study of virulence factors in Eschericia coli strains isolated by blood culture of patients with septicaemia / Metodos biologicos e moleculares no estudo de fatores de virulencia em amostras de Eschericia coli isoladas por hemocultura de pacientes com septicemia
The pathogenicity of Escherichia coli in extraintestinal infections (ExPEC) depends to virulence properties bacterial. This, genetically, spread by several pathogenicity associated islands ? genic blocks contiguous ? responsible to express factors that allow to bacteria colonize, survive and thus, hurt the host integrity. Seventh tree strains of E. coli isol
Publicado em: 2006
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11. Uropathogenic Escherichia coli Potentiates Type 1 Pilus-Induced Apoptosis by Suppressing NF-κB
Urinary tract infections (UTIs) are among the most common inflammatory diseases. Acute UTIs are typically caused by type 1-piliated Escherichia coli and result in urothelial apoptosis, local cytokine release, and neutrophil infiltration. To examine the urothelial apoptotic response, a human urothelial cell line was incubated with various E. coli isolates and
American Society for Microbiology.
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12. Bad bugs and beleaguered bladders: Interplay between uropathogenic Escherichia coli and innate host defenses
Strains of uropathogenic Escherichia coli (UPEC) are the causative agents in the vast majority of all urinary tract infections. Upon entering the urinary tract, UPEC strains face a formidable array of host defenses, including the flow of urine and a panoply of antimicrobial factors. To gain an initial foothold within the bladder, most UPEC strains encod
The National Academy of Sciences.