期刊
FRONTIERS IN CELLULAR AND INFECTION MICROBIOLOGY
卷 9, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fcimb.2019.00422
关键词
carbapenem-resistant Klebsiella pneumoniae; colistin; combination therapy; synergistic effect; bactericidal effect
资金
- Excellent Team of Young Teachers Foundation of Heilongjiang Province [2018-KYYWF0916]
- Heilongjiang Provincial Health and Family Planning Commission on Scientific Research Project [2018-290, 2018-291]
- Jiamusi University President Innovation and Entrepreneurship Fund Project [XZYF2018-43]
The purpose of this study was to investigate the synergistic and bactericidal effects of combinations of colistin with meropenem or amikacin in vitro and provide laboratory data needed for development of therapeutic strategies for the treatment of carbapenem-resistant Klebsiella pneumoniae (CRKP) infection. We found that minimum inhibitory concentration (MIC) of colistin, meropenem and amikacin were 2 similar to 32, 4 similar to 256, and 1 similar to 16384 mu g/ml, respectively. The minimum bactericidal concentration of the antibiotics was either 1x or 2xMIC. Treatments of 6 CRKP isolates at 1 mu g/ml colistin completely killed 2 of them and suppressed 4 others growth. 4 CRKP isolates at 16 mu g/ml meropenem or amikacin completely killed and suppressed 2 others growth. 2 CRKP isolates showed synergic effects in all colistin combination and 3 CRKP isolates showed synergic effects in part of colistin combination. Our data suggest that colistin in combination with either meropenem or amikacin could be a valid therapeutic option against colistin-resistant CRKP isolates. Moreover, the combination of colistin-amikacin is less expensive to treat CRKP infections in Eastern Heilongjiang Province.
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