EVALUATION OF THE FREQUENCY OF PLASMID-MEDIATED QUINOLONE RESISTANCE GENES IN CLINICAL ISOLATES OF ESCHERICHIA COLI AND KLEBSIELLA SPP. IN TEHRAN

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Mohamadbigi Masomeh; Akbarmehr Jafar; JAFARI BEHBUOD

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Journal: JOURNAL OF MICROBIAL WORLD Year:2016 | Volume:9 | Issue:3 (28) Page(s): 199-207

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Title

EVALUATION OF THE FREQUENCY OF PLASMID-MEDIATED QUINOLONE RESISTANCE GENES IN CLINICAL ISOLATES OF ESCHERICHIA COLI AND KLEBSIELLA SPP. IN TEHRAN

Author(s)

Mohamadbigi Masomeh | Akbarmehr Jafar | JAFARI BEHBUOD | Issue Writer Certificate

Keywords

ESCHERICHIA COLIQ2

KLEBSIELLAQ1

QNR GENESQ1

AAC (6) -IB-CR GENEQ1

Abstract

Background & Objectives: The qnr gene is a plasmid carrying resistant genes involved in bacterial resistance to quinolone resistance plasmid factors. The aim of this study was to evaluate the presence of either gene qnr, a plasmid resistant gene, and aac (6) -Ib-cr, from ESCHERICHIA COLI and KLEBSIELLA spp isolated from clinical samples.Materials & Methods: In this sectional study, 132 E. coli and 98 KLEBSIELLA isolates were collected from patients with the UTI referred to the ayatollah Taleghani Hospital in Tehran. Antibiotic resistance was evaluated using Kirby-Bauer and CLSI criteria. After DNA extraction, qnr and aac (6) -Ib-cr genes were amplified using PCR method.Results: In this study, E. coli strains were resistant to ciprofloxacin and nalidixic acid in a ratio of 47.72 % and 62.12 %, respectively. Also, KLEBSIELLA isolates were resistant to ciprofloxacin and nalidixic acid in a ratio of 38.77 % and 51.02 %, respectively. In the present study, the frequency of aac (6) -lb-cr, qnrA, qnrB, qnrS genes in E. coli were 30.18, 37.73, 67.92, 33.96 %. Also these frequency were 31.42, 22.58, 68.57, 31.42 % in KLEBSIELLA.Conclusion: This study showed high frequency of the ciprofloxacin resistant qnr gense in E. coli and KLEBSIELLA isolates from Tehran.

Cites

FREQUENCY OF PLASMID-MEDIATED QUINOLONE RESISTANCE GENES AMONG CLINICAL ISOLATES OF PSEUDOMONAS AERUGINOSA IN KERMAN, IRAN

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APA: Copy

Mohamadbigi, Masomeh, Akbarmehr, Jafar, & JAFARI, BEHBUOD. (2016). EVALUATION OF THE FREQUENCY OF PLASMID-MEDIATED QUINOLONE RESISTANCE GENES IN CLINICAL ISOLATES OF ESCHERICHIA COLI AND KLEBSIELLA SPP. IN TEHRAN. JOURNAL OF MICROBIAL WORLD, 9(3 (28)), 199-207. SID. https://sid.ir/paper/189268/en

Vancouver: Copy

Mohamadbigi Masomeh, Akbarmehr Jafar, JAFARI BEHBUOD. EVALUATION OF THE FREQUENCY OF PLASMID-MEDIATED QUINOLONE RESISTANCE GENES IN CLINICAL ISOLATES OF ESCHERICHIA COLI AND KLEBSIELLA SPP. IN TEHRAN. JOURNAL OF MICROBIAL WORLD[Internet]. 2016;9(3 (28)):199-207. Available from: https://sid.ir/paper/189268/en

IEEE: Copy

Masomeh Mohamadbigi, Jafar Akbarmehr, and BEHBUOD JAFARI, “EVALUATION OF THE FREQUENCY OF PLASMID-MEDIATED QUINOLONE RESISTANCE GENES IN CLINICAL ISOLATES OF ESCHERICHIA COLI AND KLEBSIELLA SPP. IN TEHRAN,” JOURNAL OF MICROBIAL WORLD, vol. 9, no. 3 (28), pp. 199–207, 2016, [Online]. Available: https://sid.ir/paper/189268/en

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