Triclosan resistance in methicillin-resistant Staphylococcus aureus (MRSA)

被引:48
作者
Brenwald, NP
Fraise, AP
机构
[1] City Hosp, Dept Microbiol, Birmingham B18 7QH, W Midlands, England
[2] City Hosp, Hosp Infect Res Lab, Birmingham B18 7QH, W Midlands, England
关键词
trictosan; Staphylococcus aureus; MRSA;
D O I
10.1016/S0195-6701(03)00222-6
中图分类号
R1 [预防医学、卫生学];
学科分类号
1004 ; 120402 ;
摘要
Two triclosan selected mutants showed four-fold and 16-fold increases in their minimum inhibitory concentrations (MICs) of triclosan (1 mg/L and 4 mg/L) compared with their parent strains. Four clinical. isolates of MRSA were detected with the same triclosan susceptibitity as the mutants. One mutant had a predicted change in the gene product on FabI (Thr 147 --> His), whilst only one clinical isolate had predicted FabI amino-acid changes (Ala 198 --> Gly, and Leu 208 --> Phe). The lack of fabI mutations in one mutant and three of the clinical isolates showing reduced triclosan susceptibility suggest that genetic loci other than fabI may be involved in triclosan resistance. (C) 2003 The Hospital Infection Society. Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码:141 / 144
页数:4
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