Imipenem resistance among Acinetobacter baumannii: Association with reduced expression of a 33-36 kDa outer membrane protein

被引:96
作者
Clark, RB
机构
[1] Department of Microbiology, American Medical Laboratories, Inc., Chantilly, VA 22021
关键词
D O I
10.1093/jac/38.2.245
中图分类号
R51 [传染病];
学科分类号
100401 ;
摘要
The mechanism of imipenem resistance of two Acinetobacter baumannii isolates (A-1 and A-24) was characterized in this study. A spontaneous revertant (A-1 (rev)) derived from isolate A-1 showed susceptibility to imipenem. beta-Lactamase hydrolysis studies showed no evidence of an imipenem hydrolyzing enzyme among A-1, A-24, A-1 (rev), or two other imipenem susceptible A. baumannii isolates. Outer membrane protein (OMP) analysis indicated decreased expression of a 33-36 kDa protein by isolates A-1 and A-24 when compared with A-1 (rev) and the other A, baumannii isolates. In conclusion, decreased expression of a 33-36 kDa OMP is associated with imipenem resistance among A. baumannii.
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页码:245 / 251
页数:7
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