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中国临床药理学与治疗学 ›› 2005, Vol. 10 ›› Issue (2): 150-153.

• 研究原著 • 上一篇    下一篇

产ESBLs 并高产AmpC 酶肺炎克雷伯氏杆菌中整合子的基因研究

陆思静, 刘又宁, 管希周, 王睿1   

  1. 中国人民解放军总医院呼吸科, 1临床药理科, 北京100853
  • 收稿日期:2004-11-22 修回日期:2004-12-06 出版日期:2005-02-06 发布日期:2020-11-18
  • 通讯作者: 刘又宁, 男, 教授, 医学博士, 博士生导师, 研究方向:肺部感染性疾病和呼吸衰竭的诊断治疗。Tel:010-66939363 E-mail:liuyn@301hospital.com.cn
  • 作者简介:陆思静, 女, 副教授, 博士研究生, 研究方向:肺部感染性疾病和间质性肺病的基础和临床研究。Tel:010-66936184 E-mail:yusilou@126.com

Study of Klebsiella pneumoniae on integron gene of ESBLs and AmpCproducing strains

LU Si-jing, LIU You-ning, GUAN Xi-zhou, WANG rui1   

  1. Department of Respiratory Medicine, 1Department of Clinical Pharmacology, the PLA General Hospital, Beijing 100853, China
  • Received:2004-11-22 Revised:2004-12-06 Online:2005-02-06 Published:2020-11-18

摘要: 目的:观察4 株从临床分离产超广谱内β 内酰胺酶(ESBLs) 及AmpC 酶肺炎克雷伯氏杆菌的多重耐药情况, 分析其中整合子的存在, 对整合子的特性进行研究, 探讨整合子基因盒表达对肺炎克雷伯杆菌耐药表型的影响。方法:采用微量稀释法测定复方新诺明等15 种抗菌药物对细菌的最低抑菌浓度(MIC) 。PCR 技术检测整合子基因, DNA 测序研究整合子插入耐药基因盒情况。结果:这4 株菌对多种抗菌素耐药。其中1 株存在整合子(扩增片段2 000 bp 左右), 携有dhfrXII 和aadA2 基因。结论:4 株菌中仅1 株存在整合子结构, 尽管产ESBLs和AmpC 酶基因未位于整合子的基因盒上, 但整合子参与多重耐药的产生。

关键词: 整合子, 基因盒, 多重耐药, 肺炎克雷伯氏杆菌, β内酰胺酶, AmpC酶

Abstract: AIM: To observe multidrug resistance character of ESBLs and AmpC-producing isolated form Klebsiella pneumoniae in clinic, to analyze the existence and character of integron and to investigate the express of gene box involve drug resistance phenotypic.METHODS: MIC of the 4 strains was examined by micro-dilution method.Integron gene was determined by PCR assay with integron specific primer, and DNA sequencing was used for analyzing resistance related gene cassette.RESULTS: The 4 strains were multidrug resistance.The integron was detected in one strain of them, which carried aadA2 and dhfrXII gene.CONCLUSION: Though there is not the genes box of producing ESBLs and AmpC, integron involves in the form of multidrug resistance.

Key words: integron, gene box, multidrug resistance, Klebsiella pneumoniae beta-Lactamase, AmpC

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