1. Prevalence of PER-1-type Extended-Spectrum Beta-Lactamaes in Clinical Strains of Pseudomonas aeruginosa Isolated from Tabriz, Iran.
- Author
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Akhi, Mohammad Taghi, Khalili, Yones, Ghottaslou, Reza, Aghazadeh, Mohammad, Haghi, Mohammad hosein Seroush Bar, and Yousefi, Saber
- Subjects
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BETA lactamases , *DISEASE prevalence , *PSEUDOMONAS aeruginosa , *DRUG resistance , *CEFTAZIDIME - Abstract
Objective(s) The aim of this study was to investigate the presence of PER-1-type ESBLs in drug resistant Pseudomonas aeruginosa isolates. Materials and Methods During one-year period (2008-2009), following isolation and identification of 56 P. aeruginosa, the E-test method was performed for determination of minimal inhibitory concentration of ceftazidim. The isolates that they had MIC≥16 μg/ml against ceftazidim were used for determination of ESBL-producing by combined disk test (CDT) and double disk synergy test (DDST) methods. Bla PER-1 gene was investigated by PCR. P. aeruginosa KOAS was used as positive control. Results Twenty-nine (51.78%) out of fifty six isolates had MIC≥16 μg/ml to ceftazidime, twenty two (75.86%) of them were ESBL producers. Some isolates (27.5%) contained bla PER-1 gene. Conclusion PER-1-type ESBLs producing P.aeruginosa has not been reported previously in Tabriz but there has been a rather high prevalence of it. [ABSTRACT FROM AUTHOR]
- Published
- 2012