泌尿道致病性大肠杆菌分离株中编码肠毒素的基因的存在情况。
Occurrence of genes encoding enterotoxins in uropathogenic Escherichia coli isolates.
作者信息
Mirzarazi Mahsa, Rezatofighi Seyedeh Elham, Pourmahdi Mahdi, Mohajeri Mohamad Reza
机构信息
Department of Biology, Faculty of Science, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, Iran.
出版信息
Braz J Microbiol. 2015 Mar 1;46(1):155-9. doi: 10.1590/S1517-838246120130860. eCollection 2015 Mar.
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.
摘要
为了确定致泻性大肠杆菌（DEC）的某些毒素在尿路致病性大肠杆菌（UPEC）中是否存在，对138株引起尿路感染（UTI）的UPEC进行了分析。分别在13株（9.4%）、2株（1.3%）、13株（9.4%）和0株（0%）的UPEC分离株中检测到astA、set、sen和cdtB基因。结果表明，一些编码毒素的基因可以从DEC致病型转移到UPEC，因此这些分离株可以转化为潜在的致泻病原体。
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