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Journal:   IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES   MAY 2014 , Volume 17 , Number 5; Page(s) 378 To 383.
 
Paper: 

Genetic Properties Of BlaCtx-M And BlaPer β-Lactamase Genes In Clinical Isolates Of Enterobacteriaceae By Polymerase Chain Reaction
 
 
Author(s):  Nakhaei Moghaddam Mahboobeh*, Hashemi Beidokhti Mehrdad, Amel Jamehdar Saeid, Ghahraman Martha
 
* DEPARTMENT OF BIOLOGY, MASHHAD BRANCH, ISLAMIC AZAD UNIVERSITY, MASHHAD, IRAN
 
Abstract: 
Objective (s): blaCTX-M and blaPER are two genes that encode class A extended-spectrum b-lactamases (ESBLs) and can be responsible for therapeutic problems. This study was carried out to evaluate the molecular properties of these genes in clinical isolates of Enterobacteriaceae by polymerase chain reaction (PCR), restriction digestion and sequencing.Materials and Methods: During six months, starting from January 2012, one hundred clinical isolates of Enterobacteriaceae were collected from urinary samples. The ESBL-producing isolates were detected by phenotypic confirmation test. After plasmid extraction, blaPER and blaCTX-M genes were detected using PCR by specific primers. The blaCTX-M PCR products were digested with Taq1, and two of the blaCTX-M genes were sequenced.Results: Phenotypic tests showed that 27 (27%) isolates were ESBL producers with the highest frequency for Klebsiella pneumoniae (47.4%) and Escherichia coli (17.9%). Twenty six (26%) of Enterobacteriaceae isolates harbored the blaCTX-M gene, and none of them had blaPER. The restriction analysis of PCR products showed that all blaCTX-M amplified products had the same patterns. Both sequenced bacteria were CTX-M-15 type ESBL carriers.Conclusion: The results of this study showed the blaCTX-M-15 gene in Enterobacteriaceae isolates for the first time in Mashhad, Iran. High degrees of associated resistance to co-trimoxazole and gentamicin were found in ESBL producers. Therefore, an integrated and regular management of antibiotic prescription need to be trained in our society.
 
Keyword(s): CTX-M-15, ENTEROBACTERIACEAE, EXTENDED-SPECTRUM BETA-LACTAMASE, PER
 
 
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APA: Copy

NAKHAEI MOGHADDAM, M., & HASHEMI BEIDOKHTI, M., & AMEL JAMEHDAR, S., & GHAHRAMAN, M. (2014). GENETIC PROPERTIES OF BLACTX-M AND BLAPER β-LACTAMASE GENES IN CLINICAL ISOLATES OF ENTEROBACTERIACEAE BY POLYMERASE CHAIN REACTION. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES, 17(5), 378-383. https://www.sid.ir/en/journal/ViewPaper.aspx?id=405587



Vancouver: Copy

NAKHAEI MOGHADDAM MAHBOOBEH, HASHEMI BEIDOKHTI MEHRDAD, AMEL JAMEHDAR SAEID, GHAHRAMAN MARTHA. GENETIC PROPERTIES OF BLACTX-M AND BLAPER β-LACTAMASE GENES IN CLINICAL ISOLATES OF ENTEROBACTERIACEAE BY POLYMERASE CHAIN REACTION. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES. 2014 [cited 2022May25];17(5):378-383. Available from: https://www.sid.ir/en/journal/ViewPaper.aspx?id=405587



IEEE: Copy

NAKHAEI MOGHADDAM, M., HASHEMI BEIDOKHTI, M., AMEL JAMEHDAR, S., GHAHRAMAN, M., 2014. GENETIC PROPERTIES OF BLACTX-M AND BLAPER β-LACTAMASE GENES IN CLINICAL ISOLATES OF ENTEROBACTERIACEAE BY POLYMERASE CHAIN REACTION. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES, [online] 17(5), pp.378-383. Available: https://www.sid.ir/en/journal/ViewPaper.aspx?id=405587.
 
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