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阿奇霉素、克拉霉素、左旋氧氟沙星及其他抗生素对肺炎衣原体的体外活性

In vitro activities of azithromycin, clarithromycin, L-ofloxacin, and other antibiotics against Chlamydia pneumoniae.

作者信息

Hammerschlag M R, Qumei K K, Roblin P M

机构信息

Department of Pediatrics and Medicine, State University of New York, Brooklyn 11203.

出版信息

Antimicrob Agents Chemother. 1992 Jul;36(7):1573-4. doi: 10.1128/AAC.36.7.1573.

Abstract

The in vitro susceptibilities of 11 strains of Chlamydia pneumoniae to azithromycin, clarithromycin, erythromycin, L-oflaxacin, and doxycycline were determined. Clarithromycin was the most active agent tested, with an MIC for 90% of strains and minimal chlamydiacidal concentration for 90% of strains of 0.03 microns/ml. The activity of azithromycin was similar to those of erythromycin and doxycycline, with MICs for 90% of strains of 0.125 to 0.25 microns/ml. However, the prolonged half-life and enhanced tissue penetration of azithromycin should allow for less frequent dosing and shorter duration of therapy than with erythromycin or clarithromycin. L-Ofloxacin had activity similar to that of ofloxacin, with MICs of 0.125 to 0.5 micron/ml. From the results of this in vitro study, azithromycin and clarithromycin appear to be effective antibiotics that may have a role in the treatment of infections due to C. pneumoniae.

摘要

测定了11株肺炎衣原体对阿奇霉素、克拉霉素、红霉素、左旋氧氟沙星和强力霉素的体外敏感性。克拉霉素是所测试的活性最强的药物,90%菌株的最低抑菌浓度(MIC)和90%菌株的最低杀衣原体浓度为0.03微克/毫升。阿奇霉素的活性与红霉素和强力霉素相似,90%菌株的MIC为0.125至0.25微克/毫升。然而,阿奇霉素半衰期延长和组织穿透力增强,与红霉素或克拉霉素相比,给药频率应更低,治疗疗程应更短。左旋氧氟沙星的活性与氧氟沙星相似,MIC为0.125至0.5微克/毫升。从这项体外研究结果来看,阿奇霉素和克拉霉素似乎是有效的抗生素,可能在治疗肺炎衣原体感染中发挥作用。

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