Article
In vitro activities of novel nonfluorinated quinolones PGE 9262932 and PGE 9509924 against clinical isolates of Staphylococcus aureus and Streptococcus pneumoniae with defined mutations in DNA gyrase and topoisomerase IV.
Antimicrobial agents and chemotherapy - 1 Jun 2002
Jones Mark E, Critchley Ian A, Karlowsky James A, Blosser-Middleton Renée S, Schmitz Franz-Josef, Thornsberry Clyde, Sahm Daniel F
Abstract excerpt
Two 8-methoxy nonfluorinated quinolones (NFQs), PGE 9262932 and PGE 9509924, were tested against contemporary clinical isolates of Staphylococcus aureus (n = 122) and Streptococcus pneumoniae (n = 69) with genetically defined quinolone resistance-determining regions (QRDRs). For S. aureus isolates with wild-type (WT) sequences at the QRDRs, the NFQs demonstrated activities 4- to 32-fold more potent (MICs at which...
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