Frequency of Plasmid-Mediated Quinolone Resistance Genes among Clinical Isolates of Pseudomonas aeruginosa in Kerman, Iran
Background and Aims: plasmid genes are responsible for resistance to quinolones and fluoroquinolones, so the present study aims to identify the presence of qnr and aac genes in clinical isolates of P. aeruginosa. Materials and Methods: In 2016, 60 strains of P. aeruginosa were isolated from clinical...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Farname
2017-08-01
|
| Series: | Iranian Journal of Medical Microbiology |
| Subjects: | |
| Online Access: | http://ijmm.ir/article-1-683-en.html |
| _version_ | 1818576292068458496 |
|---|---|
| author | Sohrab Rajaei Nadia Kazemi-Pour Farokh Rokhbakhsh-Zamin |
| author_facet | Sohrab Rajaei Nadia Kazemi-Pour Farokh Rokhbakhsh-Zamin |
| author_sort | Sohrab Rajaei |
| collection | DOAJ |
| description | Background and Aims: plasmid genes are responsible for resistance to quinolones and fluoroquinolones, so the present study aims to identify the presence of qnr and aac genes in clinical isolates of P. aeruginosa.
Materials and Methods: In 2016, 60 strains of P. aeruginosa were isolated from clinical specimens of patients in Kerman hospitals. Antibiotic resistance patterns were evaluated using Kirby-Bauer and microdilution methodsagainst 10 antibiotics according to CLSI criteria Specific primers and polymerase chain reaction were used to detect and amplify qnr and aac(6)-Ib-cr genes.
Results: Maximum antibiotic resistance was observed against cefexim (80%) and calidixic acid (75%) and minimum resistance against imipenem (25%) and ciprofloxacin (35%). The incidence rate of quinolone resistance genes were as follows: qnr A (16.66%), qnrB (13.33%), qnrS (11/66%) and aac(6)-Ib-cr (8/33%).
Conclusions: In the present study, qnrA gene had the highest incidence rates among the studied genes. Because of the importance of antibiotic resistance and the high prevalence of qnr genes found in this study , furthur studies need to be carried out on qnr resistance genes in the regional and national dimension. |
| first_indexed | 2024-12-16T06:11:42Z |
| format | Article |
| id | doaj.art-dfdb249ccb024ef584fba65235c40cb5 |
| institution | Directory Open Access Journal |
| issn | 1735-8612 2345-4342 |
| language | English |
| last_indexed | 2024-12-16T06:11:42Z |
| publishDate | 2017-08-01 |
| publisher | Farname |
| record_format | Article |
| series | Iranian Journal of Medical Microbiology |
| spelling | doaj.art-dfdb249ccb024ef584fba65235c40cb52022-12-21T22:41:22ZengFarnameIranian Journal of Medical Microbiology1735-86122345-43422017-08-011131018Frequency of Plasmid-Mediated Quinolone Resistance Genes among Clinical Isolates of Pseudomonas aeruginosa in Kerman, IranSohrab Rajaei0Nadia Kazemi-Pour1Farokh Rokhbakhsh-Zamin2 Department of Microbiology, Islamic Azad University, Kerman, Iran Department of Microbiology, Islamic Azad University, Kerman, Iran Department of Microbiology, Islamic Azad University, Kerman, Iran Background and Aims: plasmid genes are responsible for resistance to quinolones and fluoroquinolones, so the present study aims to identify the presence of qnr and aac genes in clinical isolates of P. aeruginosa. Materials and Methods: In 2016, 60 strains of P. aeruginosa were isolated from clinical specimens of patients in Kerman hospitals. Antibiotic resistance patterns were evaluated using Kirby-Bauer and microdilution methodsagainst 10 antibiotics according to CLSI criteria Specific primers and polymerase chain reaction were used to detect and amplify qnr and aac(6)-Ib-cr genes. Results: Maximum antibiotic resistance was observed against cefexim (80%) and calidixic acid (75%) and minimum resistance against imipenem (25%) and ciprofloxacin (35%). The incidence rate of quinolone resistance genes were as follows: qnr A (16.66%), qnrB (13.33%), qnrS (11/66%) and aac(6)-Ib-cr (8/33%). Conclusions: In the present study, qnrA gene had the highest incidence rates among the studied genes. Because of the importance of antibiotic resistance and the high prevalence of qnr genes found in this study , furthur studies need to be carried out on qnr resistance genes in the regional and national dimension.http://ijmm.ir/article-1-683-en.htmlPseudomonas aeruginosaPCRqnraac(6)-crAntibiotic Resistance |
| spellingShingle | Sohrab Rajaei Nadia Kazemi-Pour Farokh Rokhbakhsh-Zamin Frequency of Plasmid-Mediated Quinolone Resistance Genes among Clinical Isolates of Pseudomonas aeruginosa in Kerman, Iran Iranian Journal of Medical Microbiology Pseudomonas aeruginosa PCR qnr aac(6)-cr Antibiotic Resistance |
| title | Frequency of Plasmid-Mediated Quinolone Resistance Genes among Clinical Isolates of Pseudomonas aeruginosa in Kerman, Iran |
| title_full | Frequency of Plasmid-Mediated Quinolone Resistance Genes among Clinical Isolates of Pseudomonas aeruginosa in Kerman, Iran |
| title_fullStr | Frequency of Plasmid-Mediated Quinolone Resistance Genes among Clinical Isolates of Pseudomonas aeruginosa in Kerman, Iran |
| title_full_unstemmed | Frequency of Plasmid-Mediated Quinolone Resistance Genes among Clinical Isolates of Pseudomonas aeruginosa in Kerman, Iran |
| title_short | Frequency of Plasmid-Mediated Quinolone Resistance Genes among Clinical Isolates of Pseudomonas aeruginosa in Kerman, Iran |
| title_sort | frequency of plasmid mediated quinolone resistance genes among clinical isolates of pseudomonas aeruginosa in kerman iran |
| topic | Pseudomonas aeruginosa PCR qnr aac(6)-cr Antibiotic Resistance |
| url | http://ijmm.ir/article-1-683-en.html |
| work_keys_str_mv | AT sohrabrajaei frequencyofplasmidmediatedquinoloneresistancegenesamongclinicalisolatesofpseudomonasaeruginosainkermaniran AT nadiakazemipour frequencyofplasmidmediatedquinoloneresistancegenesamongclinicalisolatesofpseudomonasaeruginosainkermaniran AT farokhrokhbakhshzamin frequencyofplasmidmediatedquinoloneresistancegenesamongclinicalisolatesofpseudomonasaeruginosainkermaniran |