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司帕沙星衍生物(YH16,YH17)体外抗枝原体活性研究
Susceptibilities of Mycoplasmaand Ureaplasmato derivatives (YH16, YH17) of sparfloxacin in vitro
【摘要】 采用微量液体稀释法测定了氟喹诺酮司帕沙星衍生物 YH16、YH17对人型枝原体、解脲脲原体的体外敏感性。结果显示 ,YH16、YH17对人型枝原体的最低抑制浓度 (MIC90 )分别为 0 .2 5和 0 .12 5 mg/ L,是司帕沙星的 1/ 8和 1/ 16。对解脲脲原体的最低抑制浓度 (MIC90 )分别为 1.0和 0 .5 mg/ L,是司帕沙星的 1/ 4和 1/ 8。但人型枝原体、解脲脲原体的喹诺酮类药物耐药株对 YH16、YH17也存在交叉耐药性。
【Abstract】 To evaluate the susceptibilities of Mycoplasmaand Ureaplasmato derivatives (YH16 and YH17) of sparfloxacin by microdilution method in vitroin comparison with sparfloxacin. Results show that the minimum inhibition concentration (MIC 90) of YH16 and YH17 against Ureaplasma urealyticum(Uu) (1.0 and 0.5 mg /L), and Mycoplasma hominis(Mh) (0.25 and 0.125mg/L), were 1/8~1/16 those of sparfloxacin against Mh, and 1/4~1/8 those of sparfloxacin against Uu. However, there were cross resistance YH16 and YH17 for Uu and Mh strains resistant to other quinolones.
【Key words】 Mycoplasma hominis; Ureaplasma urealyticum; Microbial sensitivity; Sparfloxacin; Derivative; Structure-activity relationship;
- 【文献出处】 中国抗生素杂志 ,Chinese Journal of Antibiotics , 编辑部邮箱 ,2003年08期
- 【分类号】R965
- 【被引频次】2
- 【下载频次】61