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:: Volume 21, Issue 3 (Scientific Journal of Kurdistan University of Medical Sciences 2016) ::
SJKU 2016, 21(3): 68-78 Back to browse issues page
The frequency of class 1 integrons in multi-drug resistant Klebsiella pneumoniae isolated from clinical samples using polymerase chain reaction assay
Zeinab Mahluji1 , Farzaneh Firoozeh 2, Ahmad Khorshidi3 , Mohammad Zibaei4
1- Department of Microbiology and Immunology, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran.
2- Department of Microbiology and Immunology, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran, (Corresponding Author), Tel:+98-31-55540021 , ffiroozeh@ut.ac.ir
3- Department of Microbiology and Immunology, School of Medicine, Kashan University of Medical Sciences, Kashan, Iran
4- Department of Parasitology and Mycology, School of Medicine, Alborz University of Medical Sciences, Karaj, Iran.
Abstract:   (4991 Views)

Background and Aim: The development of multidrug resistant (MDR) strains of K. pneumoniae is a matter of great concern and horizontal transfer of integrons is one of the most important factors in the creation of multidrug-resistant (MDR) bacteria. This study was aimed to determine the frequency of class 1 integrons and their gene cassettes among MDR K. pneumonia strains isolated from clinical specimens.

Materials and Methods: This cross-sectional study included 181 samples of Klebsiella pneumoniae isolated from outpatients and hospitalized patients between November 2013 and June 2014. Antimicrobial susceptibility patterns of isolated samples were determined by disk diffusion method according to the CLSI guidelines. The presence of class 1 integrons and embedded gene cassettes were investigated in MDR strains by polymerase chain reaction assay. Using SPSS 17, statistical analyses were carried out by chi-square (χ2) and Fisher exact tests. P-values of less than 0.05 were considered statistically significant.

Result: Of 181 isolated samples, 150 (82.9%) were multidrug resistant. The most and the least resistance rates belonged to ampicillin (98.7%) and imipenem (24%) respectively. Class I integrons were seen in 150 (100%) of MDR isolated samples and 147 (98%) of them contained gene cassettes of five different kinds.

Conclusion: We found a high frequency rate of class 1 integrons and embedded gene cassettes in MDR Klebsiella pneumoniae in the hospitalized patients in Kashan which can play an important role in the creation and transmission of antibiotic resistance.

Keywords: Klebsiella pneumonia, Multidrug resistant (MDR), Integron, Clinical specimens.

Received: Jan 3, 2016      Accepted: Apr 10, 2016

Keywords: Klebsiella pneumonia, Multidrug resistant (MDR), Integron, Clinical specimens
Full-Text [PDF 588 kb]   (1864 Downloads)    
Type of Study: Original Research | Subject: General
Received: 2016/07/31 | Accepted: 2016/07/31 | Published: 2016/07/31
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Mahluji Z, Firoozeh F, Khorshidi A, Zibaei M. The frequency of class 1 integrons in multi-drug resistant Klebsiella pneumoniae isolated from clinical samples using polymerase chain reaction assay. SJKU 2016; 21 (3) :68-78
URL: http://sjku.muk.ac.ir/article-1-2424-en.html


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Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 21, Issue 3 (Scientific Journal of Kurdistan University of Medical Sciences 2016) Back to browse issues page
مجله علمی دانشگاه علوم پزشکی کردستان Scientific Journal of Kurdistan University of Medical Sciences
مجله علمی دانشگاه علوم پزشکی کردستان Scientific Journal of Kurdistan University of Medical Sciences
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