In vitro activity of ciprofloxacin against methicillin-susceptible and methicillin-resistant staphylococci.

B Gahrn-Hansen, P Søgaard, M Arpi
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引用次数: 2

Abstract

Ciprofloxacin was found to be active against selected strains of methicillin-resistant as well as methicillin-susceptible Staphylococcus aureus and Staphylococcus epidermidis, having minimal inhibitory concentrations less than 0.8 micrograms/ml with inocula of approximately 10(4) CFU/ml. When killing kinetic studies were done with inocula of approximately 10(6) CFU/ml and various ciprofloxacin concentrations, the killing effect was low (less than 3 log10 in 6 h) and regrowth of the culture was seen after 24 h in at least one Staphylococcus aureus strain. After 48 h incubation, mutants with MICs eightfold that of the parental strain had grown to a number of approximately 10(10) CFU/ml.

环丙沙星对甲氧西林敏感和耐甲氧西林葡萄球菌的体外活性研究。
环丙沙星被发现对耐甲氧西林以及甲氧西林敏感的金黄色葡萄球菌和表皮葡萄球菌具有活性,在接种量约为10(4)CFU/ml时,其最低抑制浓度小于0.8微克/ml。当用大约10(6)CFU/ml的接种量和不同浓度的环丙沙星进行杀灭动力学研究时,杀灭效果很低(6小时内小于3 log10),并且在至少一种金黄色葡萄球菌菌株中24小时后可以看到培养物的再生。孵育48小时后,mic为亲本菌株8倍的突变体生长到大约10(10)CFU/ml。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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