title: Cross-resistance among cinoxacin, ciprofloxacin, DJ-6783, enoxacin, nalidixic acid, norfloxacin, and oxolinic acid after in vitro selection of resistant populations.
abstract: Six different gram-negative bacilli were serially transferred through subinhibitory concentrations of seven quinolone derivatives or related organic acids. A gradual, stepwise decrease in susceptibility was noted with all seven drugs, and the resistant cultures demonstrated a concomitant cross-resistance to the other drugs.
mesh_terms: D000900:Anti-Bacterial Agents / Q000494:pharmacology*; D001419:Bacteria / Q000187:drug effects*; D002937:Cinoxacin / Q000494:pharmacology; D002939:Ciprofloxacin; D004352:Drug Resistance, Microbial; D015365:Enoxacin; D004755:Enterobacteriaceae / Q000187:drug effects; D009268:Nalidixic Acid / Q000031:analogs & derivatives / Q000494:pharmacology; D009287:Naphthyridines / Q000494:pharmacology; D009643:Norfloxacin; D010093:Oxolinic Acid / Q000494:pharmacology; D011550:Pseudomonas aeruginosa / Q000187:drug effects; D011804:Quinolines / Q000494:pharmacology
chemical_list: D000900:Anti-Bacterial Agents; D009287:Naphthyridines; D011804:Quinolines; D015365:Enoxacin; D009268:Nalidixic Acid; D002939:Ciprofloxacin; C041592:DJ 6783; D010093:Oxolinic Acid; D002937:Cinoxacin; D009643:Norfloxacin