›› 2010, Vol. 37 ›› Issue (10): 81-86.

• 生物技术 • 上一篇    下一篇

质粒介导喹诺酮类耐药机制研究进展

朱恒乾1, 彭斌2, 廖晓萍1   

  1. (1.华南农业大学兽医学院 广东省兽药研制与安全评价重点实验室, 广州 510642;2.湖南省桑植县动物防疫监督管理局, 桑植 427100)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-10-20 发布日期:2010-10-20
  • 通讯作者: 廖晓萍

Development of Plasmid Mediated Quinolone Resistance Genes

ZHU Heng-qian1, PENG Bin2, LIAO Xiao-ping1   

  1. (1.Guangdong Provincial Key Laboratory of Veterinary Pharmaceutics Development and Safety Evaluation, College of Veterinary Medicine, South China Agricultural University, Guangzhou 510642, China;2.Hunan Province Sangzhi Supervising Agencies for Animal Epidemic Prevention, Sangzhi 427100, China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-10-20 Published:2010-10-20
  • Contact: LIAO Xiao-pi

摘要: 质粒介导喹诺酮类耐药(PMQR)基因的出现,迅速提高了细菌对喹诺酮类药物的耐药性,给临床细菌性疾病的治疗带来了严重的威胁。目前虽然认为喹诺酮类耐药基因(qnr)只引起低水平耐药,但低水平耐药性可使细菌数量达到出现突变所需的浓度,从而出现高水平耐药。因此,对质粒介导该类药物耐药机制的研究,及耐药基因的分子传播机制的研究不仅能指导临床合理用药,而且有助于控制耐药菌株的产生和传播。

关键词: PMQR; 耐药; qnr; 喹诺酮

Abstract: Bacterial resistance to quinolone drugs was improved rapidly with the appearance of plasmid-mediated quinolone resistance (PMQR) genes, and which bring about serious threat to clinical therapy. Currently, we know that quinolone resistance genes (qnr) conferred low-level resistance to quinolone drugs, but this low-level resistance may cause the quantity of bacterial overrun of mutant prevention concentration, and which may lead to high-level resistance to quinolones. Therefore, investigations of plasmid mediated drug resistance to quinolones as well as mechanisms of dissemination of resistance genes in molecular level are not only useful to guide clinical therapy, but also help to control the production and dissemination of resistant strains.

Key words: PMQR; resistance; qnr; quinolone

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