Distribution of Antibiotic Resistance Genes among the Phylogroups of Escherichia coli in Diarrheic Calves and Chickens Affected by Colibacillosis in Tehran, Iran
Antibiotic resistance occurs in the endogenous flora of exposed population in addition to pathogenic bacteria. This study was conducted to evaluate the distribution of antibiotic resistance genes among 63 isolates of Escherichia coli of Escherichia coli (E. coli) in diarrheic calves and poultry. Acc...
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| Format: | Article |
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Razi Vaccine and Serum Research Institute
2018-06-01
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| Series: | Archives of Razi Institute |
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| Online Access: | http://archrazi.areeo.ac.ir/article_116502_53e0a6ab410f8a4cb5e452e8af262829.pdf |
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| author | H. Staji A. Tonelli T. Zahraei Salehi A. Mahdavi E. Shahroozian M. R. Salimi Bejestani S. Mehdizade Mood M. Keywanloo M. Ahmadi Hamedani H. Emadi Chashmi I. Ashrafi Tamai E. Atefi Tabar |
| author_facet | H. Staji A. Tonelli T. Zahraei Salehi A. Mahdavi E. Shahroozian M. R. Salimi Bejestani S. Mehdizade Mood M. Keywanloo M. Ahmadi Hamedani H. Emadi Chashmi I. Ashrafi Tamai E. Atefi Tabar |
| author_sort | H. Staji |
| collection | DOAJ |
| description | Antibiotic resistance occurs in the endogenous flora of exposed population in addition to pathogenic bacteria. This study was conducted to evaluate the distribution of antibiotic resistance genes among 63 isolates of Escherichia coli of Escherichia coli (E. coli) in diarrheic calves and poultry. According to the results, B1 and B2 were the most prevalent phylogroups of E. coli in calves and poultry carcasses, respectively. Antimicrobial resistance was observed in 76% of the isolates, and 62% of the strains were multi-drug resistant. Antibiotic resistance in E. coli strains obtained from calves strains was significantly higher than those obtained from poultries. Additionally, the strains of B1 and D phylogroups had the highest and lowest antimicrobial resistance, respectively. At least one encoding gene for integrone was detected in 23 strains (36.5%) and Class I integron had the highest prevalence. Accordingly, this study gave baseline information on the magnitude of the resistance problem and its genetic background in E. coli from domesticated animals of the Tehran, Iran. Moreover, the power of oligonucleotide array technology in the discrimination of different genotypes during a short time was confirmed in this study. |
| first_indexed | 2024-04-12T14:21:42Z |
| format | Article |
| id | doaj.art-29cba1e3b0d140aca77315d0db87d35e |
| institution | Directory Open Access Journal |
| issn | 0365-3439 2008-9872 |
| language | English |
| last_indexed | 2024-04-12T14:21:42Z |
| publishDate | 2018-06-01 |
| publisher | Razi Vaccine and Serum Research Institute |
| record_format | Article |
| series | Archives of Razi Institute |
| spelling | doaj.art-29cba1e3b0d140aca77315d0db87d35e2022-12-22T03:29:33ZengRazi Vaccine and Serum Research InstituteArchives of Razi Institute0365-34392008-98722018-06-0173213113710.22092/ari.2018.116502116502Distribution of Antibiotic Resistance Genes among the Phylogroups of Escherichia coli in Diarrheic Calves and Chickens Affected by Colibacillosis in Tehran, IranH. Staji0A. Tonelli1T. Zahraei Salehi2A. Mahdavi3E. Shahroozian4M. R. Salimi Bejestani5S. Mehdizade Mood6M. Keywanloo7M. Ahmadi Hamedani8H. Emadi Chashmi9I. Ashrafi Tamai10E. Atefi Tabar11Department of Pathobiology, Faculty of Veterinary Medicine, Semnan University, Semnan, IranIstituto Zooprofilattico Sperimentale dell'Abruzzo e del Molise Giuseppe Caporale, Department of Research and Development, Campo Boario, 64100 Teramo TE, ItalyDepartment of Microbiology, Faculty of Veterinary Medicine, Tehran University, Tehran, IranDepartment of Pathobiology, Faculty of Veterinary Medicine, Semnan University, Semnan, IranDepartment of Pathobiology, Faculty of Veterinary Medicine, Semnan University, Semnan, IranDepartment of Veterinary ParasitologyDepartment of Pathobiology, Faculty of Veterinary Medicine, Semnan University, Semnan, IranDepartment of Pathobiology, Faculty of Veterinary Medicine, Semnan University, Semnan, IranDepartment of Pathobiology, Faculty of Veterinary Medicine, Semnan University, Semnan, IranDepartment of Pathobiology, Faculty of Veterinary Medicine, Semnan University, Semnan, IranDepartment of Microbiology, Faculty of Veterinary Medicine, Tehran University, Tehran, IranDepartment of Pathobiology, Faculty of Veterinary Medicine, Semnan University, Semnan, IranAntibiotic resistance occurs in the endogenous flora of exposed population in addition to pathogenic bacteria. This study was conducted to evaluate the distribution of antibiotic resistance genes among 63 isolates of Escherichia coli of Escherichia coli (E. coli) in diarrheic calves and poultry. According to the results, B1 and B2 were the most prevalent phylogroups of E. coli in calves and poultry carcasses, respectively. Antimicrobial resistance was observed in 76% of the isolates, and 62% of the strains were multi-drug resistant. Antibiotic resistance in E. coli strains obtained from calves strains was significantly higher than those obtained from poultries. Additionally, the strains of B1 and D phylogroups had the highest and lowest antimicrobial resistance, respectively. At least one encoding gene for integrone was detected in 23 strains (36.5%) and Class I integron had the highest prevalence. Accordingly, this study gave baseline information on the magnitude of the resistance problem and its genetic background in E. coli from domesticated animals of the Tehran, Iran. Moreover, the power of oligonucleotide array technology in the discrimination of different genotypes during a short time was confirmed in this study.http://archrazi.areeo.ac.ir/article_116502_53e0a6ab410f8a4cb5e452e8af262829.pdfEscherichia coliphylogroupsIntegronsResistance genes |
| spellingShingle | H. Staji A. Tonelli T. Zahraei Salehi A. Mahdavi E. Shahroozian M. R. Salimi Bejestani S. Mehdizade Mood M. Keywanloo M. Ahmadi Hamedani H. Emadi Chashmi I. Ashrafi Tamai E. Atefi Tabar Distribution of Antibiotic Resistance Genes among the Phylogroups of Escherichia coli in Diarrheic Calves and Chickens Affected by Colibacillosis in Tehran, Iran Archives of Razi Institute Escherichia coli phylogroups Integrons Resistance genes |
| title | Distribution of Antibiotic Resistance Genes among the Phylogroups of Escherichia coli in Diarrheic Calves and Chickens Affected by Colibacillosis in Tehran, Iran |
| title_full | Distribution of Antibiotic Resistance Genes among the Phylogroups of Escherichia coli in Diarrheic Calves and Chickens Affected by Colibacillosis in Tehran, Iran |
| title_fullStr | Distribution of Antibiotic Resistance Genes among the Phylogroups of Escherichia coli in Diarrheic Calves and Chickens Affected by Colibacillosis in Tehran, Iran |
| title_full_unstemmed | Distribution of Antibiotic Resistance Genes among the Phylogroups of Escherichia coli in Diarrheic Calves and Chickens Affected by Colibacillosis in Tehran, Iran |
| title_short | Distribution of Antibiotic Resistance Genes among the Phylogroups of Escherichia coli in Diarrheic Calves and Chickens Affected by Colibacillosis in Tehran, Iran |
| title_sort | distribution of antibiotic resistance genes among the phylogroups of escherichia coli in diarrheic calves and chickens affected by colibacillosis in tehran iran |
| topic | Escherichia coli phylogroups Integrons Resistance genes |
| url | http://archrazi.areeo.ac.ir/article_116502_53e0a6ab410f8a4cb5e452e8af262829.pdf |
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