Bactericidal activities of daptomycin, quinupristin-dalfopristin, and linezolid against vancomycin-resistant Staphylococcus aureus in an in vitro pharmacodynamic model with simulated endocardial vegetations.
In search of treatment alternatives against vancomycin-resistant S. aureus (VRSA), an in vitro pharmacodynamic model with simulated endocardial vegetations incorporating protein and a high inoculum was used to simulate daptomycin, linezolid, quinupristin-dalfopristin, and vancomycin against the Michigan VRSA strain. Daptomycin and quinupristin-dalfopristin exhibited the greatest bacterial reductions, and all tested agents except vancomycin exhibited bactericidal activity against the VRSA.
Cha
Raymond
R
Anti-Infective Research Laboratory, Eugene Applebaum College of Pharmacy and Health Sciences, School of Medicine, Wayne State University, Detroit, Michigan 48201, USA.
Brown
William J
WJ
Rybak
Michael J
MJ
D000081:Acetamides / Q000494:pharmacology*; D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D000890:Anti-Infective Agents / Q000494:pharmacology*; D015169:Colony Count, Microbial; D003470:Culture Media; D017576:Daptomycin / Q000494:pharmacology*; D004359:Drug Therapy, Combination / Q000494:pharmacology*; D004699:Endocardium / Q000382:microbiology*; D000069349:Linezolid; D008826:Microbial Sensitivity Tests; D023303:Oxazolidinones / Q000494:pharmacology*; D013203:Staphylococcal Infections / Q000382:microbiology*; D013211:Staphylococcus aureus / Q000187:drug effects*; D020713:Vancomycin Resistance; D014769:Virginiamycin / Q000494:pharmacology*
D000081:Acetamides; D000900:Anti-Bacterial Agents; D000890:Anti-Infective Agents; D003470:Culture Media; D023303:Oxazolidinones; D014769:Virginiamycin; C062940:quinupristin-dalfopristin; D000069349:Linezolid; D017576:Daptomycin