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گوارش، جلد ۲۵، شماره ۲، صفحات ۹۳-۱۰۲
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عنوان انگلیسی The Frequency of Infection with Campylobacter, Its Species Diversity, and Antimicrobial Resistance in Stool Samples of Patients with Community-Acquired Gastroenteritis in Tehran
چکیده انگلیسی مقاله Background : Campylobacter species are among foodborne pathogens that are known as the main cause of inflammatory diarrhea in humans. In this cross-sectional study, we investigated the prevalence of Campylobacter spp. and their drug resistance status in fecal samples of patients with community-acquired gastroenteritis in Tehran. Materials and Methods: In this survey, infection with Campylobacter spp. was evaluated in 400 stool samples of patients with diarrhea. Accordingly, microscopic examination to show the presence of exudative diarrhea, rejection of fungi and parasitic infections, enrichment and culture in a specific medium under microaerophilic conditions, determination of biochemical identity, and molecular confirmation at genus and species levels for C. jejuni , C. coli , C. lari, and C. upsaliensis were performed. Antibiotic resistance patterns were determined by E-test and disk diffusion methods, and the presence of the dominant gyrA gene mutations in the quinolone-resistance domain of C. jejuni isolates was determined by using Mismatch Amplification Mutation Assay-polymerase chain reaction (MAMA-PCR) [1] . Results: A total of 28 strains of Campylobacter were isolated from the samples obtained from the patients with diarrhea. The most common species were C. jejuni (6%), C. coli (0.5%), C. lari (0.25%), and other unknown species (0.25%). The highest antibiotic resistance rate was observed against tetracycline and ampicillin (53.5% and 50%, respectively), and the lowest rate was detected for nalidixic acid and ciprofloxacin (28.5% and 28.5%). Multiple drug resistance (MDR) phenotype was detected among 51.8% of the strains. Discussion: Results of this study indicated C. jejuni as the main Campylobacter species responsible for community-acquired diarrhea among the studied patients. The high rate of resistance to antibiotics and MDR phenotype in these strains compared with other countries is considered a risk, especially in the treatment of invasive infections.
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نویسندگان مقاله | Atena Sadeghi
Molecular Microbiology Research Center, Faculty of Medicine, Shahed University, Tehran, Iran


| Parviz Owlia
Health Reference Laboratory Research Center, Reference Health Laboratory, Ministry of Health and Medical Education, Iran


| Leila Ganji
Molecular Microbiology Research Center, Faculty of Medicine, Shahed University, Tehran, Iran


| Saeid Besharati
Department of Microbiology, Faculty of Basic Sciences, Science and Research Branch, Islamic Azad University, Tehran, Iran


| Fatemeh Ahmadi
Professor Alborzi Clinical Microbiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran


| Fereshteh Fani
Professor Alborzi Clinical Microbiology Research Center, Shiraz University of Medical Sciences, Shiraz, Iran


| Gholamreza Puladfar
Pediatric Infections Research Center, Research Institute for Children's Health, Shahid Beheshti University of Medical Sciences, Tehran, Iran


| Masoud Alebouyeh


نشانی اینترنتی http://govaresh.org/index.php/dd/article/view/2207
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