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Distribution of the Pathogenicity Islands Markers (PAIs) in Uropathogenic E.coli Isolated from Children in Mofid Children Hospital

Authors:
Masoumeh NavidiniaMasoumeh Navidinia1, Shahin Najar PeerayehShahin Najar Peerayeh1,*, Fatemeh FallahFatemeh Fallah2, Bita BakhshiBita Bakhshi1, Saadat AdabianSaadat Adabian1, Shadi AlimehrShadi Alimehr2, Zari GholinejadZari Gholinejad2
1Bacteriology Department of Medical Sciences Faculty, Tarbiat Modares University, najarp_s@modares.ac.ir, IR Iran
2Pediatric Infections Research Center, Mofid Children Hospital, IR Iran


Archives of Pediatric Infectious Diseases:Vol. 1, issue 2; 75-79
Published online:Jul 15, 2013
Article type:Research Article
Received:Nov 11, 2012
Accepted:Dec 17, 2012
How to Cite:Masoumeh NavidiniaShahin Najar PeerayehFatemeh FallahBita BakhshiSaadat AdabianShadi AlimehrZari Gholinejadet al.Distribution of the Pathogenicity Islands Markers (PAIs) in Uropathogenic E.coli Isolated from Children in Mofid Children Hospital.1(2):75-79.https://doi.org/10.5812/pedinfect.9083.

Abstract

Background:

Uropathogenic Escherichia coli (UPEC) is a causative agent of most of urinary tract infections (UTIs), which expresses a multitude of virulence factors.

Objectives:

The aim of this study was to investigate virulence associated characteristics characteristics in UPEC isolates derived from urine specimens, and to investigate the distribution of the pathogenicity islands virulence markers (PAIs) among the isolates in relation to their antibiotic susceptibility pattern.

Patients and Methods:

A total of 50 E.coli isolates were collected from patients with UTI during 2009 to August 2010. Biochemical and standard microbiological techniques were used to identify E.coli followed by screening for islands by polymerase chain reaction (PCR).

Results:

We found a high number of PAI markers such as PAI ICFT073, PAI IICFT073, PAI I536, PAI IV536, PAI II J96, and PAI II536 significantly associated with UPEC. High level of resistance to Aztreonam, Co-trimoxazole, Cefpodoxime, and Cefotaxime was found among the UPEC isolates.

Conclusions:

This observation is of special value considering that the UPEC pathotype constitutes an emerging group of enteropathogens, particularly, in our county. Knowledge of the molecular details of Uropathogenic E.coli is useful to develop successful strategies for the treatment of urinary tract infection and complications associated with UTIs in human.

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