نتایج جستجو برای: uropathogenic echerichia coli
تعداد نتایج: 152316 فیلتر نتایج به سال:
background: n-acyl homoserine lactone (ahl) is found to be the main component of quorum sensing (qs) in gram-negative bacteria and plays an important role in biofilm formation. little information is available regarding the role of ahl in biofilm formation in escherichia coli (e. coli). the purpose of this investigation was to biochemically detect and characterize ahl activity in biofilm-forming...
Recently we have described the molecular cloning of the genetic determinant coding for the S-fimbrial adhesin (Sfa), a sialic acid-recognizing pilus frequently found among extraintestinal Escherichia coli isolates. Fimbriae from the resulting Sfa+ E. coli K-12 clone were isolated, and an Sfa-specific antiserum was prepared. Western blots indicate that S fimbriae isolated from different uropatho...
Urinary tract infections primarily caused by uropathogenic strains of Escherichia coli (E. coli) remain a significant public health problem in both developed and developing countries. An important virulence determinant in uropathogenesis is biofilm formation which requires expression of fimbriae, flagella, and other surface components such as lipopolysaccharides. In this study, we explored the ...
This review discusses recent advances in the understanding of how the common pathogen, uropathogenic Escherichia coli, interacts with the host to lead to infection.
Background and Aim: Uropathogenic Escherichia coli (UPEC) strains are a causative agent in most of the urinary tract infections (UTIs), which constitute a multitude of virulence factors. There is little information about phylogenetic group distribution, types, and their virulence factors in Uropathogenic Escherichia coli (UPEC) in different areas of Iran. In the present study, the phylogenic pa...
BACKGROUND The role of calcium oxalate crystals and deposits in UTI pathogenesis has not been established. The objectives of this study were to identify bacteria present in pediatric urolithiasis and, using in vitro and in vivo models, to determine the relevance of calcium oxalate deposits during experimental pyelonephritis. METHODS Pediatric kidney stones and urine were collected and both cu...
Background and objectives: Urinary tract infection is one of the most nosocomial infections with different antibiotic resistance pattern. This study was aimed to investigate the pattern of susceptibility and resistance of uropathogenic E. coli strains that had been isolated from those who referred to the private laboratories in Khorram-Abad city. Materials and Methods: This empirical s...
Acute uncomplicated cystitis and pyelo-nephritis, most episodes of which are caused by uropathogenic strains of Esch-erichia coli, are very common infections affecting otherwise healthy women. Uro-pathogenic E. coli strains, compared with fecal strains, are more likely to possess the potential for enhanced extraintestinal vir-ulence, which enables the organisms to overcome local host defenses a...
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