›› 2009, Vol. 36 ›› Issue (6): 38-41.

• 生理生化 • 上一篇    下一篇

头孢喹诺对临床分离菌株抗菌活性研究

马全朝1,顾欣2,张可煜1,金凌艳2,薛飞群1   

  1. (1.中国农业科学院上海兽医研究所, 上海 200241; 2.上海市兽药饲料检测所, 上海 201103)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-06-20 发布日期:2009-06-20
  • 通讯作者: 薛飞群

The Study of Antibacterial Activity of Cefquinome to Clinical Bacteria

MA Quan-chao1,GU Xin2,ZHANG Ke-yu1,JIN Ling-yan2,XUE Fei-qun1   

  1. (1.Shanghai Veterinary Research Institute, Chinese Academy of Agricultural Sciences, Shanghai 200241, China;2.Shanghai Municipal Inspection Institute for Veterinary Drugs and Feedstuffs, Shanghai 201103, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-06-20 Published:2009-06-20
  • Contact: XUE Fei-qun

摘要: 本研究旨在评价头孢喹诺对上海市养殖场临床分离菌株的体外抗菌作用,为头孢喹诺的临床使用提供参考依据。从上海市养殖场分离并鉴定大肠杆菌、沙门氏菌、金黄色葡萄球菌和链球菌各若干株,采用微量肉汤稀释法测定头孢喹诺对各菌株的最小抑菌浓度(MIC)、最小杀菌浓度(MBC),推算MIC50和MIC90,并绘制头孢喹诺对这4种细菌的杀菌动力学曲线。头孢喹诺对金黄色葡萄球菌、链球菌、沙门氏菌和大肠杆菌的MIC50分别为0.063、0.063、0.032、0.125 μg/mL,MIC90分别为0.125、0.125、0.125、0.25 μg/mL;在很小的浓度变化范围内头孢喹诺能够快速抑菌,在抑菌浓度为1倍或2倍MIC时,24 h内能杀灭金黄色葡萄球菌、大肠杆菌或链球菌、沙门氏菌。头孢喹诺对上述几种临床分离细菌具有很强的抑菌效果和杀菌活性。

关键词: 头孢喹诺; 临床分离细菌; MIC; MBC; 杀菌动力学曲线

Abstract: To evaluate antibacterial activity of Cefquinome against some pathogenic bacteria isolated from Shanghai in vitro, using the microdilution to the minimum inhibitory concentration (MIC) and the minimum bactericidal concentration (MBC) of Cefquinome against four pathogenic bacteria from Shanghai several animal farms is determined by the microdilution and calculate the MIC50, MIC90,and the time killing curve. The MIC50 and MIC90 of Cefquinome against Staphylococcus aureus, Streptococci, Salmonella and E.coli. Staphylococcus aureus 0.063, 0.125 μg/mL,Streptococci0.063, 0.125 μg/mL, Salmonella 0.032, 0.125 μg/mL, E. coil 0.125, 0.25 μg/mL. Cefquinome has a low concentration to quickly bacteriostasis and bactericidal activity to Staphylococcus aureus, E.coli, Streptococci, and Salmonella.It can kill all clinical bacteria at one MIC or two MIC in 24 hours. Cefquinome has powerful bacteriostasis and bactericidal activity to clinical bacteria above.

Key words: Cefquinome; clinical bacteria; MIC; MBC; the time killing curve

中图分类号: