In vitro antibacterial activity of chinfloxacin, a new fluoroquinolone antibiotic.
Chemotherapy
; 58(3): 175-84, 2012.
Article
en En
| MEDLINE
| ID: mdl-22699239
ABSTRACT
BACKGROUND:
Chinfloxacin is a novel synthetic fluoroquinolone with a structure similar to moxifloxacin. The in vitro activity of chinfloxacin was evaluated in the current study.METHOD:
Chinfloxacin was tested against a total of 1,739 clinical isolates representing 23 species using the agar dilution method. Studies of bactericidal activity, including minimum bactericidal concentrations (MBC) and time-kill curve determinations, were conducted according to the recommendations of the Clinical and Laboratory Standards Institute.RESULTS:
Minimum inhibitory concentrations (MIC)(50)s and MIC(90)s of chinfloxacin were found to be the same or 2-fold lower than those of moxifloxacin against gram-positive isolates except for Streptococcus pyogenes (against which chinfloxacin showed similar MIC(50) as moxifloxacin but 2-fold higher MIC(90)), and the same as or 2-fold higher than those of moxifloxacin against gram-negative isolates. Chinfloxacin showed potent bactericidal activity with MBC/MIC ratios in the range of 1-2 for almost all the isolates tested. Time-kill curves further demonstrated chinfloxacin as a concentration-dependent bactericidal agent usually effective at concentrations of 2 MIC or higher.CONCLUSION:
Chinfloxacin showed similar in vitro activity as moxifloxacin.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Fluoroquinolonas
/
Bacterias Gramnegativas
/
Bacterias Grampositivas
/
Antibacterianos
Tipo de estudio:
Guideline
Idioma:
En
Revista:
Chemotherapy
Año:
2012
Tipo del documento:
Article