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中国临床药理学与治疗学 ›› 2008, Vol. 13 ›› Issue (9): 1044-1047.

• 药物治疗学 • 上一篇    下一篇

利奈唑胺、去甲万古霉素等抗菌药物对耐甲氧西林金黄色葡萄球菌的抗菌活性

梁蓓蓓, 王睿   

  1. 解放军总医院药品保障中心临床药理研究室, 北京100853
  • 收稿日期:2008-07-08 修回日期:2008-08-19 出版日期:2008-09-26 发布日期:2020-10-13
  • 作者简介:梁蓓蓓, 女, 硕士, 主管药师, 研究方向:抗感染药理学。Tel:13910635134 E-mail:jerryzhbc@163.com;王睿, 女, 教授, 博导, 研究方向:抗感染药理学。Tel:010-66939409 E-mail:wangrui301@vip.sina.com

Study on in vitro antimicrobial activity of linezolid, vancomycin and other antibacterials against 111 methicillin resistant staphylococcus aureus

LIANG Bei-bei, WANG Rui   

  1. Department of Clinical Pharmacology, PLA General Hospital, Beijing 100853, China
  • Received:2008-07-08 Revised:2008-08-19 Online:2008-09-26 Published:2020-10-13

摘要: 目的:研究北京市三家医院耐甲氧西林金黄色葡萄球菌(MRSA) 耐药现状, 评价利奈唑胺、去甲万古霉素等药物的抗菌活性。方法:收集解放军总医院、北京医院、北京协和医院三家医院分离的非重复MRSA 111 株, 头孢西丁纸片法确认MRSA, 采用琼脂稀释法测定抗菌药物的最低抑菌浓度(MIC) 。结果:111 株MRSA, 对β-内酰胺类的耐药率为100%, 对红霉素的耐药率为92.8%, 对氨基糖苷类(奈替米星、庆大霉素) 的耐药率为99.1%, 对氟喹酮类(加替沙星、莫西沙星、左氧氟沙星) 的耐药率为91.9% ~99.1%, 对氯霉素的耐药率为3.6%, 对去甲万古霉素、利奈唑胺全部敏感, 对去甲万古霉素MIC50 和MIC90 分别为0.5和1 μg/mL, 对利奈唑胺的MIC50 和MIC90 均为2 μg/mL 。结论:北京三家医院分离的MRSA 对本研究的大多数抗菌药物均耐药, 去甲万古霉素和利奈唑胺对于MRSA 有很高的抗菌活性。

关键词: 利奈唑胺, 去甲万古霉素, 耐甲氧西林金黄色葡萄球菌, 抗菌活性

Abstract: AIM: To investigate the antimicrobial activity of linezolid, vancomycin and other antibacterials against 111 methicillin resistant staphylococcus aureus. METHODS: Broth dilution method was used to determine the minimum inhibitory concentrations (MICs) of linezolid, vancomycin and other antibacterials against 111 methicillin resistant staphylococcus aureus identified by cefoxitin.RESULTS: The resistant rates of 111 MRSA to β-lactam, erythromycin, aminoglycosides (netilmicin and gentamycin), fluoroquinolones (gatifloxacin, moxifloxacin and levofloxacin) and chloromycin were 100%, 92.8%, 99.1%, 91.9% -99.1%, 3.6%.All 111 MRSA were sensitive to linezolid and vancomycin, andMIC50 and MIC90 of vancomycin were 0.5 and 1 μg/mL, MIC50 and MIC90 of linezolid were 2 μg/mL.CONCLUSION: 111 MRSA were resistant to most antibacterials including β-lactam, erythromycin, aminoglycosides and fluoroquinolones. Linezolid and vancomycin have strong antimicrobial activity against MRSA.

Key words: linezolid, vancomycin, MRSA, antimicrobialactivity

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