Wootton Mandy, MacGowan Alasdair P, Walsh Timothy R
Bristol Centre for Antimicrobial Research and Evaluation, Cellular and Molecular Medicine, University of Bristol, Bristol, BS8 1TD, United Kingdom.
Antimicrob Agents Chemother. 2006 Dec;50(12):4195-7. doi: 10.1128/AAC.00678-06. Epub 2006 Oct 16.
Staphylococcus aureus strains from the U.S. SENTRY Antimicrobial Surveillance Program, 2002-2003, glycopeptide-intermediate S. aureus (GISA) strains, and heterogeneous GISA (hGISA) strains were used to compare bactericidal activities of daptomycin and vancomycin using MICs and minimum bactericidal concentrations. Glycopeptide-susceptible S. aureus and hGISA strains were further studied by using time-kill curves. For all isolates, the daptomycin MIC50 and MIC90 are four times lower and the log drops in viable counts at 6 h and 24 h are significantly greater than those for vancomycin.
来自美国哨兵抗菌监测计划(2002 - 2003年)的金黄色葡萄球菌菌株、糖肽中介金黄色葡萄球菌(GISA)菌株以及异质性GISA(hGISA)菌株,被用于通过最低抑菌浓度(MIC)和最低杀菌浓度比较达托霉素和万古霉素的杀菌活性。对糖肽敏感的金黄色葡萄球菌和hGISA菌株通过时间杀菌曲线作进一步研究。对于所有分离株,达托霉素的MIC50和MIC90低四倍,且在6小时和24小时时活菌计数的对数下降显著大于万古霉素。