摘要
目的:本研究对肺炎克雷伯菌对喹诺酮类耐药基因进行检测,并对其相关的耐药机制分析。方法:对本院经Vitek2compact系统鉴定分离得到的40株多耐药肺炎克雷伯菌株进行耐药相关基因gyrA、gyrB、qnrA1、qnrB、qnrS1、qepA及aac(6')Ib-Cr的检测和分析。结果:研究发现40株多耐药肺炎克雷伯菌株中发生gyrA基因突变的有32株(80.0%),gyrB基因突变的有16株(40.0%),发生qnrA1、qnrB、qnrS1、qepA及aac(6')Ib-Cr基因突变的分别有4株(10.0%)、6株(15.0%)、4株(10.0%)、4株(10.0%)、和6株(15.0%)。结论:肺炎克雷伯菌对喹诺酮类耐药与多种基因突变相关,但最主要的原因是gyrA基因突变。
Objective:To detecte gene in Klebsiellapneumonia resistant to quinolones and its mechanism.Methods:Drug resistant genes gyrA、gyrB、qnrA1、qnrB、qnrS1、qepA and aac(6')Ib-Cr in 40 stains of Klebsiellapneumonia isolated in our hospital were detected by PCR.Results:32(80.0%)out of 40 stains showed gyrA gene mutation,and 16(40.0%)showed gyrB mutation.4(10.0%),6(15.0%),4(10.0%),6(15.0%)strains showed mutations in qnrA1、qnrB、qnrS1、qepA and aac(6')Ib-Cr,respectively.Conclusion:Several gens in Klebsiellapneumonia strains contributes to its resistance to quinolones,but gyrA mutation is the main reason.
出处
《海南医学院学报》
CAS
2015年第4期453-455,共3页
Journal of Hainan Medical University
基金
深圳市盐田区科技计划资助项目(201211)~~
关键词
肺炎克雷伯菌
耐药机制
基因突变
喹诺酮类抗生素
Klebsiellapneumonia
Drug resistance mechanism
Gene mutation
Quinolone antibiotics