2009•Chinese Journal of Clinical Laboratory ScienceRequires access

Integron-mediated multidrug resistance in clinical multi-resistant Pseudomonas aeruginosa

Zhuang Nan

Abstract

Objective To investigate the action of integron-mediated multidrug resistance in clinical multi-resistant Pseudomonas aeruginosa in Huaibei area.Methods The antibiotic susceptibility of 13 different antibiotics of 36 multi-drug resistant P.aeruginosa was tested by K-B.The three-dimensional method was taken to differentiate the various beta-lactamases.The integron was determined by PCR with integron-specific primer.Results The positive rate of integron detection in multi-resistant Pseudomonas aeruginosa was 86.1%.Two kinds of integron with different length were found,i.e.1 000 bp and 2 000 bp.PSE-1,aadA2,aadB,aac(6)-II and CARB-8 were the resistance-related gene cassette in the integrons.Conclusions Integron may enroll in multiple resistance of multi-resistant Pseudomonas aeruginosa.

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Key concepts: Integron, Pseudomonas aeruginosa, Microbiology, Multiple drug resistance, Biology, Drug resistance, Antibiotics, Antibiotic resistance