FREQUENCY DETERMINATION OF BLATEM & BLASHV IN THE EXTENDED-SPECTRUM BETA-LACTAMASE PRODUCING ESCHERICHIA COLI ISOLATES FROM KARAJ

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HADDADI AZAM; YEKEFALLAH FATEMEH

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Journal: IRANIAN JOURNAL OF MEDICAL MICROBIOLOGY Year:2017 | Volume:11 | Issue:2 Page(s): 75-80

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Title

FREQUENCY DETERMINATION OF BLATEM & BLASHV IN THE EXTENDED-SPECTRUM BETA-LACTAMASE PRODUCING ESCHERICHIA COLI ISOLATES FROM KARAJ

Author(s)

HADDADI AZAM | YEKEFALLAH FATEMEH | Issue Writer Certificate

Keywords

ESCHERICHIA COLIQ3

EXTENDED-SPECTRUM β-LACTAMASESQ2

BLATEMQ2

BLASHVQ2

Abstract

Background and Aims: Extended-spectrum b-lactamases are groups of enzyme with the capability of hydrolyzing cephalosporins and aztreonam. Various types of extended-spectrum b-lactamases (ESBLs), such asblaTEM and blaSHV are present prominently in E. coli strains. This study aimed to determine the frequency of blaTEM and blaSHV genes in the extended-spectrum b-lactamases, producing E. coli strains from urinary tract infections in Karaj city.Materials and Methods: In this study which performed during the summer of 2015, antibiotic susceptibility pattern of 119 isolated E. coli strains from urinary tract infections were determined to 16 different antibiotics using Kirby-Bauer disk diffusion method. Extended spectrum b-lactamases-producing bacteria were identified using double disc diffusion method by combination discs and were studied by using specific primers for genesblaTEM and blaSHV.Results and Conclusions: The highest and lowest percentage of resistance were found to tetracycline (61%) and nitrofurantoin (8.5%), respectively.42.8% of isolates were extended spectrum b-lactamases positive. Based on the PCR results the frequency of bla TEM and bla SHV were 60.78% and 39.21% respectively and 9.32% of isolates had both genes. High levels of genesblaTEM and blaSHV resistance to third generation of cephalosporins strains considered a problem. Diagnose of extended-spectrum b-lactamases strains in clinical laboratory also should be considered and it is recommended that prescription of cephalosporins should be restricted to susceptible isolates.

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FREQUENCY OF TEM AND SHV IN THE EXTENDED-SPECTRUM BETA-LACTAMASE PRODUCING KLEBSIELLA ISOLATES FROM KARAJ CITY

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APA: Copy

HADDADI, AZAM, & YEKEFALLAH, FATEMEH. (2017). FREQUENCY DETERMINATION OF BLA_TEM & BLA_SHV IN THE EXTENDED-SPECTRUM BETA-LACTAMASE PRODUCING ESCHERICHIA COLI ISOLATES FROM KARAJ. IRANIAN JOURNAL OF MEDICAL MICROBIOLOGY, 11(2), 75-80. SID. https://sid.ir/paper/132635/en

Vancouver: Copy

HADDADI AZAM, YEKEFALLAH FATEMEH. FREQUENCY DETERMINATION OF BLA_TEM & BLA_SHV IN THE EXTENDED-SPECTRUM BETA-LACTAMASE PRODUCING ESCHERICHIA COLI ISOLATES FROM KARAJ. IRANIAN JOURNAL OF MEDICAL MICROBIOLOGY[Internet]. 2017;11(2):75-80. Available from: https://sid.ir/paper/132635/en

IEEE: Copy

AZAM HADDADI, and FATEMEH YEKEFALLAH, “FREQUENCY DETERMINATION OF BLA_TEM & BLA_SHV IN THE EXTENDED-SPECTRUM BETA-LACTAMASE PRODUCING ESCHERICHIA COLI ISOLATES FROM KARAJ,” IRANIAN JOURNAL OF MEDICAL MICROBIOLOGY, vol. 11, no. 2, pp. 75–80, 2017, [Online]. Available: https://sid.ir/paper/132635/en

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