Occurrence of genes encoding enterotoxins in uropathogenic Escherichia coli isolates

Mahsa Mirzarazi; Seyedeh Elham Rezatofighi; Mahdi Pourmahdi; Mohamad Reza Mohajeri

doi:10.1590/S1517-838246120130860

Occurrence of genes encoding enterotoxins in uropathogenic Escherichia coli isolates

Braz J Microbiol. 2015 Mar 1;46(1):155-9. doi: 10.1590/S1517-838246120130860. eCollection 2015 Mar.

Authors

Mahsa Mirzarazi¹, Seyedeh Elham Rezatofighi¹, Mahdi Pourmahdi², Mohamad Reza Mohajeri³

Affiliations

¹ Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
² Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
³ Clinical and Pathological Laboratory of Dr. Mohajeri, Isfahan, Iran.

Abstract

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 transferred from DEC pathotypes to UPECs therefore these isolates can transform into potential diarrhea-causing agents.

Keywords: astA and cdt genes; phylogenetic groups; sen; set; toxins; uropathogenic Escherichia coli.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Enterotoxins / genetics*
Escherichia coli Infections / microbiology
Humans
Urinary Tract Infections / microbiology
Uropathogenic Escherichia coli / genetics*
Uropathogenic Escherichia coli / isolation & purification

Substances

Enterotoxins