Repository of Research and Investigative Information

Repository of Research and Investigative Information

Baqiyatallah University of Medical Sciences

Integron and genotype patterns of quinolones-resistant uropathogenic Escherichia coli

(2011) Integron and genotype patterns of quinolones-resistant uropathogenic Escherichia coli. African Journal of Microbiology Research. pp. 3765-3770. ISSN 1996-0808

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Abstract

Uropathogenic Escherichia coli are the most common cause of urinary tract infections, and quinolones-resistant strains cause growing concern in developing countries. This study provides relevant data in relation to the molecular epidemiology of these isolates with respect to the distribution of integron among them and in doing so, to control the infections and adopt efficient strategies. This study was performed on 96 strains of E. coli isolated from patients with community acquired urinary tract infections in Jahrom, Iran. Having determined the antibiotic susceptibility patterns, isolates were resistant to quinolones (Ciprofloxacin, Norfloxacin and Nalidixic acid) screened for integron classes by polymerase chain reaction (PCR). Then the genetic patterns of the strains were compared by pulsed field gel electrophoresis. Of the 96 samples, 30 were resistant to at least one of the above mentioned antibiotics. Integrons were detected in 20.8, 25 and 25 of the Nalidixic acid, Ciprofloxacin and Norfloxacin resistant isolates, respectively. By using pulsed field gel electrophoresis among the 30 samples, we obtained 30 genetic patterns. The patterns revealed no clonal relationships between the strains. The gene cassettes observed in class 1 and 2 integrons did not correlate completely with the quinolone resistance observed in these isolates.

Item Type: Article
Keywords: Quinolones-resistant Uropathogenic Escherichia coli pulsed field gel electrophoresis integrons field gel-electrophoresis urinary-tract-infection antibiotic-resistance molecular epidemiology multidrug-resistance virulence factors gene cassettes community susceptibility prevalence Microbiology
Divisions:
Page Range: pp. 3765-3770
Journal or Publication Title: African Journal of Microbiology Research
Journal Index: ISI
Volume: 5
Number: 22
ISSN: 1996-0808
Depositing User: مهندس مهدی شریفی
URI: http://eprints.bmsu.ac.ir/id/eprint/6477

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