Lien vers Pubmed [PMID] – 10882698
J. Antimicrob. Chemother. 2000 Jul;46(1):109-13
The in vitro potency of three newer fluoroquinolones, moxifloxacin, clinafloxacin and sitafloxacin was tested against 248 genetically defined Staphylococcus aureus isolates, comprising 116 unrelated S. aureus, seven heterogeneous intermediate vancomycin-resistant S. aureus strains as well as 125 clonally related methicillin-resistant S. aureus. All strains were susceptible to clinafloxacin and sitafloxacin based on an investigational breakpoint of 1 mg/L and were less influenced by mutations within the grl and gyr gene loci. In one-quarter to one-third of the strains tested, reserpine decreased slightly the MICs of moxifloxacin, clinafloxacin and sitafloxacin. Compared with moxifloxacin, clinafloxacin and sitafloxacin showed a significantly increased anti-staphylococcal potency.