期刊
ANTIMICROBIAL AGENTS AND CHEMOTHERAPY
卷 56, 期 9, 页码 4976-4979出版社
AMER SOC MICROBIOLOGY
DOI: 10.1128/AAC.00650-12
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资金
- National Sciences and Engineering Council
- Cangene Corporation
Phenotypic tolerances to antibiotics of mature and young Pseudomonas aeruginosa PAO1 biofilms and released planktonic bacteria were compared for four antibiotics. Resistance levels were similar for gentamicin and ciprofloxacin but differed for ceftazidime and meropenem. beta-Lactamase mapping showed that, after 5 h of ceftazidime exposure, mature biofilms produced more beta-lactamase than young biofilms, facilitating the growth of released planktonic bacteria. This shows the importance of early treatment and choice of antibiotics for P. aeruginosa biofilm infections.
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