Imipenem resistance in clinical Escherichia coli from Qom, Iran

Abstract Objective The emergence of metallo-β-lactamase-producing Enterobacteriaceae is a worldwide health concern. In this study, the first evaluation of MBL genes, bla IMP and bla VIM , in Escherichia coli resistant to imipenem isolated from urine and blood specimens in Qom, Iran is described. Thr...

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Main Authors: Saeed Shams, Ali Hashemi, Mohammad Esmkhani, Somaye Kermani, Elham Shams, Alessandra Piccirillo
Format: Article
Language:English
Published: BMC 2018-05-01
Series:BMC Research Notes
Subjects:
Online Access:http://link.springer.com/article/10.1186/s13104-018-3406-6
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author Saeed Shams
Ali Hashemi
Mohammad Esmkhani
Somaye Kermani
Elham Shams
Alessandra Piccirillo
author_facet Saeed Shams
Ali Hashemi
Mohammad Esmkhani
Somaye Kermani
Elham Shams
Alessandra Piccirillo
author_sort Saeed Shams
collection DOAJ
description Abstract Objective The emergence of metallo-β-lactamase-producing Enterobacteriaceae is a worldwide health concern. In this study, the first evaluation of MBL genes, bla IMP and bla VIM , in Escherichia coli resistant to imipenem isolated from urine and blood specimens in Qom, Iran is described. Three hundred urine and blood specimens were analysed to detect the presence of E. coli. Resistance to imipenem and other antimicrobials was determined by disk diffusion and MIC. MBL production was screened using CDDT. PCR was also carried out to determine the presence of bla IMP and bla VIM genes in imipenem-resistant isolates. Results In total, 160 E. coli isolates were collected from March to May 2016. According to disk diffusion, high-level of resistance (20%) to cefotaxime was observed, whereas the lowest (1%) was detected for tetracycline. In addition, five isolates showed resistance to imipenem with a MIC ≥ 4 µg/mL. CDDT test confirmed that five isolates were MBL-producing strains, but no bla IMP and bla VIM genes were detected. Results of this study show a very low level of resistance to imipenem in our geographical area.
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spelling doaj.art-83d3efce6a584e6087eec003af5380e52022-12-22T01:56:04ZengBMCBMC Research Notes1756-05002018-05-011111510.1186/s13104-018-3406-6Imipenem resistance in clinical Escherichia coli from Qom, IranSaeed Shams0Ali Hashemi1Mohammad Esmkhani2Somaye Kermani3Elham Shams4Alessandra Piccirillo5Cellular and Molecular Research Center, Qom University of Medical SciencesDepartment of Microbiology, School of Medicine, Shahid Beheshti University of Medical SciencesAli Ebne Abitaleb HospitalCellular and Molecular Research Center, Qom University of Medical SciencesCellular and Molecular Research Center, Qom University of Medical SciencesDepartment of Comparative Biomedicine and Food Science, University of PaduaAbstract Objective The emergence of metallo-β-lactamase-producing Enterobacteriaceae is a worldwide health concern. In this study, the first evaluation of MBL genes, bla IMP and bla VIM , in Escherichia coli resistant to imipenem isolated from urine and blood specimens in Qom, Iran is described. Three hundred urine and blood specimens were analysed to detect the presence of E. coli. Resistance to imipenem and other antimicrobials was determined by disk diffusion and MIC. MBL production was screened using CDDT. PCR was also carried out to determine the presence of bla IMP and bla VIM genes in imipenem-resistant isolates. Results In total, 160 E. coli isolates were collected from March to May 2016. According to disk diffusion, high-level of resistance (20%) to cefotaxime was observed, whereas the lowest (1%) was detected for tetracycline. In addition, five isolates showed resistance to imipenem with a MIC ≥ 4 µg/mL. CDDT test confirmed that five isolates were MBL-producing strains, but no bla IMP and bla VIM genes were detected. Results of this study show a very low level of resistance to imipenem in our geographical area.http://link.springer.com/article/10.1186/s13104-018-3406-6Escherichia coliImipenemMetallo-β-lactamaseResistance
spellingShingle Saeed Shams
Ali Hashemi
Mohammad Esmkhani
Somaye Kermani
Elham Shams
Alessandra Piccirillo
Imipenem resistance in clinical Escherichia coli from Qom, Iran
BMC Research Notes
Escherichia coli
Imipenem
Metallo-β-lactamase
Resistance
title Imipenem resistance in clinical Escherichia coli from Qom, Iran
title_full Imipenem resistance in clinical Escherichia coli from Qom, Iran
title_fullStr Imipenem resistance in clinical Escherichia coli from Qom, Iran
title_full_unstemmed Imipenem resistance in clinical Escherichia coli from Qom, Iran
title_short Imipenem resistance in clinical Escherichia coli from Qom, Iran
title_sort imipenem resistance in clinical escherichia coli from qom iran
topic Escherichia coli
Imipenem
Metallo-β-lactamase
Resistance
url http://link.springer.com/article/10.1186/s13104-018-3406-6
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AT mohammadesmkhani imipenemresistanceinclinicalescherichiacolifromqomiran
AT somayekermani imipenemresistanceinclinicalescherichiacolifromqomiran
AT elhamshams imipenemresistanceinclinicalescherichiacolifromqomiran
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