粘菌素
鲍曼不动杆菌
替加环素
抗菌剂
微生物学
亚胺培南
阿兹屈南
不动杆菌
阿米卡星
医学
生物
出处
期刊:PLOS ONE
[Public Library of Science]
日期:2022-07-13
卷期号:17 (7): e0270908-e0270908
标识
DOI:10.1371/journal.pone.0270908
摘要
Emerging resistance to colistin in Acinetobacter baumannii clinical strains is concerning because of the limited therapeutic choices for these important clinical pathogens. We studied the in vitro activities of different colistin-based antimicrobial agent combinations against colistin-resistant Acinetobacter baumannii. Fourteen clinical isolates of colistin-resistant Acinetobacter baumannii were obtained between 2015 and 2016. To identify colistin-based combinations with synergistic activities, multiple two antimicrobial combinations based on 8 commercially available drugs were evaluated by the checkerboard method. The most effective colistin-based combinations were vancomycin, aztreonam, ceftazidime and imipenem which showed synergistic activities against all examined strains. Colistin-rifampin showed synergy against four strains. Colistin-tigecycline and colistin-amikacin mostly showed indifferent results. By using the checkerboard tests, we were able to find the most promising colistin-based combinations that may provide more therapeutic options against colistin-resistant Acinetobacter baumannii.
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