期刊
DIAGNOSTIC MICROBIOLOGY AND INFECTIOUS DISEASE
卷 52, 期 1, 页码 71-74出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.diagmicrobio.2004.12.008
关键词
doripenem; carbapenems; resistance; beta-lactamases; ertapenem
Doripenem (formerly S-4661), a novel carbapenem antimicrobial, was compared with ertapenem, imipenem, and meropenem using reference broth microdilution test methods against wild-type and various resistant microbial subsets (380 strains). Doripenem and meropenem were consistently more potent than ertapenem or imipenem when tested against Enterobacteriaceac, Pseudomonas aeruginosa and Acinetobacter spp. Ertapenem exhibited minimum inhibitory concentration (MIC) elevations for some isolates producing AmpC and extended-spectrum beta-lactamases, in contrast to greater enzyme stability for doripenem and other carbapenems tested. Multiple beta-lactamase (TEM, SHV, CTX-M, OXA, CMY types)-producing Escherichia coli had doripenem MIC values at <= 0.016 mu g/mL (with higher values for ertapenem). Doripenem appears to be a promising, potent carbapenem for parenteral use against contemporary Gram-negative bacilli producing various beta-lactamases. (c) 2005 Elsevier Inc. All rights reserved.
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