Submitted: 23 Jan 2014
Revised: 10 Feb 2014
Accepted: 17 Feb 2014
First published online: 05 Oct 2016
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Int J Enteric Pathog. 2014;2(2): e17791.
doi: 10.17795/ijep17791
  Abstract View: 625
  PDF Download: 389

Research Article

Antibacterial Resistance Patterns of Helicobacter pylori Clinical Isolates From Gastric Biopsy of Patients in Yazd

Tahereh Navidifar 1, Gilda Eslami 2, Mohsen Akhondi 3, Mahmood Baghbanian 3, Hossein Fallah Zadeh 4, Hengameh Zandi 1 *

1 Department of Microbiology, Shahid Sadoughi University of Medical Sciences, Yazd, IR Iran
2 Department of Parasitology and Mycology, Shahid Sadoughi University of Medical Sciences, Yazd, IR Iran
3 Department of Gastroenterology, Shahid Sadoughi University of Medical Sciences, Yazd, IR Iran
4 Department of Biostatistics, Shahid Sadoughi University of Medical Sciences, Yazd, IR Iran
*Corresponding author: Hengameh Zandi, Microbiology Department, Shahid Sadoughi University of Medical Sciences, Yazd, IR Iran. Tel: +98-9307292597 , Email: hengameh_zandi@ yahoo.com

Abstract

Background: Helicobacter pylori related-infections are common in developing countries, including Iran. However, little information is available on the antibiotic susceptibility of H. pylori in Yazd.

Objectives: The aim of this study was to investigate the antibiotic resistance patterns of H. pylori isolates from gastric biopsy of patients in Yazd.

Materials and method: In this descriptive-analytical study, 651 gastric biopsy specimens were taken from May 2012 to February 2013. Samples were cultured into selective Brucella agar media. After 3 to 10 days of incubation and identification of bacteria by using gram stain and biochemical tests, antibacterial susceptibility assay was performed by disk diffusion method.

Results: All of 651 gastric biopsy specimens were cultured and 144 (22.12%) isolates of H. pylori were collected. In total, 76 (52.7%) of 144 H. pylori isolates were isolated from females and 68 (47.2%) from males. Rate of antibiotic resistance to metronidazole, tetracycline, clarithromycin, levofloxacin, ciprofloxacin and amoxicillin were 77.8%, 21.5%, 18.8%, 14.6%, 19.4% and 7.6%, respectively. No antibiotic resistance was found against furazolidone. There was no significant association between these isolates antibiotics resistance with sex, age and endoscopic diagnoses (P > 0.05).

Conclusions: H. pylori isolates resistance was high to antibiotics, especially metronidazole. Therefore, determining resistance pattern of H. pylori isolates is recommended in all parts of the country.

Implication for health policy/practice/research/medical education:

In this study, we evaluated the antibacterial resistance patterns of Helicobacter pylori clinical isolates from gastric biopsy of patients in Yazd. Rate of antibacterial resistance varied in different regions. Evaluating resistance patterns of common pathogens in different regions helps to better management of the infection by healthcare providers.

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