PREVALENCE OF INTEGRONS AND ANTIMICROBIAL RESISTANCE GENES AMONG CLINICAL ISOLATES OF ENTEROBACTER SPP. FROM HOSPITALS OF TEHRAN

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SALIMIAN RIZI KOBRA; NAJAR PEERAYEH SHAHIN; BAKHSHI BITA; RAHBAR MOHAMMAD

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Journal Paper

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Journal: International Journal of Enteric Pathogens Year:2015 | Volume:3 | Issue:1 Page(s): 0-0

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Title

PREVALENCE OF INTEGRONS AND ANTIMICROBIAL RESISTANCE GENES AMONG CLINICAL ISOLATES OF ENTEROBACTER SPP. FROM HOSPITALS OF TEHRAN

Author(s)

SALIMIAN RIZI KOBRA | NAJAR PEERAYEH SHAHIN | BAKHSHI BITA | RAHBAR MOHAMMAD | Issue Writer Certificate

Keywords

ENTEROBACTER

INTEGRONS

AMINOGLYCOSIDES

Abstract

Background: ENTEROBACTER infections are increasingly recognized as an important nosocomial infection. Here we describe the prevalence of three classes of INTEGRONS in clinical isolates of ENTEROBACTER spp. and the prevalence of antibiotic resistance genes among isolates with integron.Objectives: Here we describe the prevalence of INTEGRONS genes among clinical isolates of ENTEROBACTER spp. and antibiotic susceptibility pattern, ESBL production and the prevalence of resistance genes among clinical isolates of ENTEROBACTER spp.Materials and Methods: A total of 110 ENTEROBACTER isolates collected from four hospitals in Tehran during 2012-2013. ENTEROBACTER species were identified by using API 20E system. The existence of integron classes was investigated by PCR assay through the amplification of integrase genes. Then, antibacterial susceptibility and confirmation of ESBL phenotype was determined. Then, the bla groups, blaTEM, blaSHV, blaCTX-M-1 and aminoglycoside modifying enzymes genes were identified by PCR with specific primers.Results: The prevalence of ENTEROBACTER species were E. cloacae (78.2 %), E. aerogenes (13.6 %) and E. sakazakii (8.2%). They were from different clinical sources. Forty five of ENTEROBACTER isolates have integron but there was not detected class 3 of INTEGRONS. All isolates with integron were susceptible to imipenem. Ten isolates of ENTEROBACTER with integron showed ESBL phenotype. The frequency of blaTEM, blaSHV and blaCTX-M-1 genes are 20%, 0% and 15.6%, respectively. The frequency of genes encoding ANT (2˝) -Ia, APH (3') -Ia, AAC (6') -Ib and AAC (3) -IIa were 11.1%, 13.3%, 13.3 % and 20 %, respectively.Conclusions: The high prevalence of integron-positive isolates in our MDR ENTEROBACTER isolates indicates that these mobile genetic elements are common among different ENTEROBACTER spp. and associate with reduced susceptibility to the first-line antimicrobial drugs. This so highlight the continued monitoring of drug resistance in clinical settings.

Cites

Prevalence of integron classes in Gram-negative clinical isolated bacteria in Iran: a systematic review and meta-analysis

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APA: Copy

SALIMIAN RIZI, KOBRA, NAJAR PEERAYEH, SHAHIN, BAKHSHI, BITA, & RAHBAR, MOHAMMAD. (2015). PREVALENCE OF INTEGRONS AND ANTIMICROBIAL RESISTANCE GENES AMONG CLINICAL ISOLATES OF ENTEROBACTER SPP. FROM HOSPITALS OF TEHRAN. INTERNATIONAL JOURNAL OF ENTERIC PATHOGEN, 3(1), 0-0. SID. https://sid.ir/paper/347503/en

Vancouver: Copy

SALIMIAN RIZI KOBRA, NAJAR PEERAYEH SHAHIN, BAKHSHI BITA, RAHBAR MOHAMMAD. PREVALENCE OF INTEGRONS AND ANTIMICROBIAL RESISTANCE GENES AMONG CLINICAL ISOLATES OF ENTEROBACTER SPP. FROM HOSPITALS OF TEHRAN. INTERNATIONAL JOURNAL OF ENTERIC PATHOGEN[Internet]. 2015;3(1):0-0. Available from: https://sid.ir/paper/347503/en

IEEE: Copy

KOBRA SALIMIAN RIZI, SHAHIN NAJAR PEERAYEH, BITA BAKHSHI, and MOHAMMAD RAHBAR, “PREVALENCE OF INTEGRONS AND ANTIMICROBIAL RESISTANCE GENES AMONG CLINICAL ISOLATES OF ENTEROBACTER SPP. FROM HOSPITALS OF TEHRAN,” INTERNATIONAL JOURNAL OF ENTERIC PATHOGEN, vol. 3, no. 1, pp. 0–0, 2015, [Online]. Available: https://sid.ir/paper/347503/en

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