›› 2009, Vol. 36 ›› Issue (7): 67-71.

• 生物技术 • 上一篇    下一篇

大通量的抗生素药敏检测盒的设计及应用

王庆艳1,2,朱小玲2,白华2,张庆宁1,2,杜加法2,3,刘玉庆2,王述柏1   

  1. (1.青岛农业大学动物科技学院, 青岛 266109; 2.山东省农业科学院畜牧兽医研究所, 济南 250100;3.湖南农业大学动物医学院, 长沙 410128)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-07-20 发布日期:2009-07-20
  • 通讯作者: 王述柏

Design and Application of Large Flux Antibiotic Susceptibility Testing Kit

WANG Qing-yan1,2, ZHU Xiao-ling2, BAI Hua2, ZHANG Qing-ning1,2, DU Jia-fa2,3, LIU Yu-qing2, WANG Shu-bai1   

  1. (1.Animal Scientific College of Qingdao Agricultural University, Qingdao 266109, China; 2.Institute of Animal Science and Veterinary Medicine Shandong Academy of Agricultural Sciences, Jinan 250100, China; 3.Hunan Agricultural University Veterinary Faculty, Changsha 410128, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-07-20 Published:2009-07-20
  • Contact: WANG Shu-bai

摘要: 基于琼脂稀释法,设计制作了96点阵抗生素药敏检测盒。以NCCLS(2007)抗生素最低抑菌浓度(minimal inhibitory concentration,MIC)微量稀释法为对照,测定了分离自规模化猪场饲养员和幼儿园、中学学生的98株大肠杆菌对恩诺沙星、环丙沙星、诺氟沙星和中药三黄汤的药物敏感性。结果表明,两种方法测定的最低杀菌浓度(minimal bactericidal concentration,MBC)、MIC都表现高度对称,其差值的平均值都在一倍稀释度内,在差值0.5 μg/mL范围内都达到90%以上的符合。MBC与MIC高度相关,r=0.94~0.99。这些指标说明两种方法测定的MBC与MIC平行性好。以总体的抗生素敏感性频率比较,两种方法测定值也很相近,符合率为93.93%。本检测盒还可以准确测定中药三黄汤对大肠杆菌的MIC(125~500 mg/mL)。96点阵抗生素药敏检测盒是适合于实验室进行大规模抗药性监测的新工具,具有简易、准确、快速、大通量、节约的优点。配合96孔培养板,一次可以测定96株病原菌对一种抗生素或中药的敏感性。

关键词: 96点阵药敏检测盒; 微量稀释法; 大肠杆菌; 大通量

Abstract: 96 matrix antibiotic susceptibility testing kit was designed based on agar dilution method. According to National Committee for Clinical Laboratory Standards and the kid, susceptibility of 98 E.coli strains isolated from raisers in the main large scale farms, students of kindergarten and middle school to Enrofloxacin, Ciprofloxacin, Norfloxacin and Sanhuangtang. The results showed that the MBC and MIC was high symmetry of two methods. The average of difference was in one dilution range respectively and the coincident ratio all reached 90% in 0.5 μg/mL difference range. The range of relativity was 0.94 to 0.99 of MBC and MIC. We found that the parallelism of MBC and MIC was high from the index. The results of the two methods were closely compared to the total frequency of susceptibility, the coincident ratio was 93.93%. 96 matrix antibiotic susceptibility testing kit can determine MIC of Sanhuangtang exactly ranged from 125 to 500 mg/mL. We can conclude that 96 matrix antibiotic susceptibility testing kit is a new kit which can adapt to large scale lab antibiotic susceptibility determination that simple, exact and fast, large flux, economize, which can test 96 bacteria for one antibiotic or Chinese traditional medicine combined with 96 holes incubated board one time.

Key words: 96 matrix antibiotic susceptibility testing kit; micro dilution method; E.coli; large flux

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