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中国药学(英文版) ›› 2014, Vol. 23 ›› Issue (7): 500-503.DOI: 10.5246/jcps.2014.07.066

• 【简报】 • 上一篇    下一篇

硝酸银使临床分离多重耐药革兰氏阳性菌和革兰氏阴性菌重新对阿米卡星敏感

刘存宝, 黄唯巍, 杨旭, 姚宇峰, 孙文佳, 马雁冰*   

  1. 中国医学科学院 北京协和医学院 医学生物学研究所 分子免疫实验室, 昆明 650118
  • 收稿日期:2014-04-17 修回日期:2014-05-08 出版日期:2014-07-18 发布日期:2014-05-15
  • 通讯作者: Tel.: 86-871-68339287, Fax: 86-871-68334483
  • 基金资助:
    Peking Union Medical College (PUMC) Youth Fund and the Fundamental Research Funds for the Central Universities, China (Grant No. 333203084).

Silver nitrate restores susceptibility of clinical multidrug resistant gram-negative and gram-positive bacteria to amikacin in vitro

Cunbao Liu, Weiwei Huang, Xu Yang, Yufeng Yao, Wenjia Sun, Yanbing Ma*   

  1. Department of Molecular Immunology, Institute of Medical Biology, Chinese Academy of Medical Sciences and Peking Union Medical College, Kunming 650118, China
  • Received:2014-04-17 Revised:2014-05-08 Online:2014-07-18 Published:2014-05-15
  • Contact: Tel.: 86-871-68339287, Fax: 86-871-68334483
  • Supported by:
    Peking Union Medical College (PUMC) Youth Fund and the Fundamental Research Funds for the Central Universities, China (Grant No. 333203084).

摘要:

高浓度的硝酸银可抑制所有检测的临床分离耐多重药菌株(最小抑菌浓度为32-64 µM)。本研究报道了阿米卡星与亚致死量(15 µM)的硝酸银在体外联用对临床分离多重耐药菌的作用。硝酸银可使原本已对阿米卡星耐药的泛耐药鲍曼不动杆菌和耐甲氧西林金黄色葡萄球菌重新变敏感(将原本都大于128 µg/mL的最小抑菌浓度分别降低至2-16 µg/mL 32 µg/mL)。硝酸银同样可以将阿米卡星对能够产生超广谱β内酰胺酶的绿脓杆菌和大肠杆菌的最小抑菌浓度分别由16-32 µg/mL 16 µg/mL 降至 <1-4 µg/mL <1 µg/mL

关键词: 硝酸银, 阿米卡星, 敏感, 多重耐药, 临床分离菌株

Abstract:

Silver nitrate could inhibit the clinical multidrug resistant isolates at high concentrations (with minimal inhibitory concentrations (MICs) from 32 µM to 64 µM).The activities of amikacin in the presence of sub-lethal silver nitrate (15 µM) were tested for the combinational effects against multidrug resistant clinical isolates in vitro. Silver nitrate restored the susceptibility of drug-resistant Acinetobacter baumannii andmethicillin-resistant Staphylococcus aureus to amikacin. It lowered the MICs of amikacin from >128 µg/mL to (2-16) µg/mL and 32 µg/mL, respectively, and lowered the MICs of amikacin on extended spectrumβ-lactamase-producing Pseudomonas aeruginosa and Escherichia coli from (16-32) µg/mL and 16 µg/mL to (<1-4) µg/mL and <1 µg/mL, respectively.

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