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Showing 2 results for Ghiamirad

N Danesh Far , H Peeri Dogaheh, M Ghiamirad ,
Volume 15, Issue 2 (summer 2015)
Abstract

  Background & objectives: Resistant microbial strains are a serious threat to public health in different societies. A mong the extended-spectrum β-lactamases (ESBL) producing strains the Enterobacteriaceae family which is considered as the main factors producing urinary tract infections, have created many problems in treatment of this kind of infections. This study was conducted to determine the frequency of β-lactamase TEM-1 gene in Enterobacteriaceae isolated from urine samples in Ardabil city.

  Methods: Within 6 months, 400 urinary isolates of Enterobacteriaceae of inpatients and outpatients were collected in Ardabil hospitals and were identified by standard methods. Antimicrobial susceptibility of isolates was tested by disk diffusion method, and ESBL producer confirmatory test was conducted using combined disk. Finally, the frequency of β-lactamase TEM-1 gene in producing extended-spectrum β-lactamases strains was investigated using PCR.

  Results: From 400 isolates of Enterobacteriaceae, 150 cases (37.5%) were ESBL producing. PCR results showed presence of the TEM-1 gene in 69 cases (46%). The frequency of this gene in isolates of Enterobacter (Aerogenes, Cloacae), Klebsiella (Pneumoniae, Oxytoca) and E. coli was obtained to be 62.5%, 54.5% and 44.8%, respectively. Proteus mirabilis and Serratia marcescens strains were lacking these genotypes.

  Conclusion: As regards the presence of TEM-1 gene, there is also increasing in other members of the Enterobacteriaceae family including Klebsiella and Enterobacter in addition to E. coli, therefore sufficient identification of this strains is necessary to prescribe the right medicine.


E Raeisi, M Ghiamirad,
Volume 15, Issue 3 (autumn 2015)
Abstract

Background & Objectives: Salmonellosis is the most common food-borne disease in the world. The purpose of this study was to determine the prevalence of salmonella serogroups and their antimicrobial susceptibility patterns in chicken meat and viscera in Ardabil, Iran.

Methods: In this cross-sectional study done in spring and summer of 2014,260 samples) 160 chicken meat, 50 gizzard and liver) were collected for isolation and identification of salmonella. The technique used in this study was recommended by Iran standard organization andKirby-bauer method was also used for detection of antibiotic resistance.

Results: Amongallthe samples,the range of detected salmonella was 10%I n which the 42.3% of them detected in spring and 57.7% in the summer.92.3% of samples belong to C serogroup and 3.8% of them were serogroup B and 3.8% serogroup D. All isolates show resistance to at least two antibiotics. Concurrent resistance to 2-6 antibiotics was detected in 70% of the isolates. The highest resistance was to Nalidixicacid�and Streptomycin (100%)and toTetracyclin (92.3%), Penicillin (88.5%), Neomycin, Kanamycin and Furazolidon (84.6%), cloramfenicol (73.1%), Ofloxacin (15.4%), Co-Amoxi clave and Ampicillin (11.5%) and Siprophloxacin 7.7%. The lowest levels of resistance were for Gentamycin and Amikacin (3.8%). No salmonella isolates were resistant to ceftazidime, Azitromicin, Meropenem, Imipenem and cefixime.

Conclusion: According to 10% pollution to salmonella and prevalence of serogroup C and salmonella importance in the human&rsquos health, as well as high rate of antibiotic resistance of isolates, applying a health strategy for reduction of contamination level is necessary.



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مجله دانشگاه علوم پزشکی اردبیل Journal of Ardabil University of Medical Sciences
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