Selection of subpopulations resistant to amikacin and netilmicin of gentamicin-resistant clinical strains of Staphylococcus aureus and Staphylococcus epidermidis

Alaeddinoglu, 1987, Plasmid-mediated enzymatic detoxification of aminoglycoside antibiotics in clinical isolates of gram negative bacilli, 650 Bongaerts, 1981, Aminoglycoside phosphotransferase-II-mediated amikacin resistance in Escherichia coli, Antimicrob. Agents Chemother., 20, 344, 10.1128/AAC.20.3.344 Bryan, 1984, Aminoglycoside resistance, 241 Courvalin, 1982, Evolutionary relationship between plasmid-mediated aminoglycoside modifying enzymes from gram positive cocci, 92 Courvalin, 1980, Aminoglycoside-modifying enzymes of Staphylococcus aureus: expression in Escherichia coli, Gene, 9, 247, 10.1016/0378-1119(90)90326-M Daikos, 1990, Adaptative resistance to aminoglycoside antibiotics from first exposure down-regulation, J. Infect. Dis., 162, 414, 10.1093/infdis/162.2.414 Davies, 1978, Plasmid-determinated resistance to antimicrobial agents, Ann. Rev. Microbiol., 32, 469, 10.1146/annurev.mi.32.100178.002345 Eliopoulos, 1988, High-level resistance to gentamicin in clinical isolates of {it}, Antimicrob. Agents Chemother., 32, 1523, 10.1128/AAC.32.10.1528 Haas, 1975, Aminoglycoside-modifying enzymes, Meth. Enzymol., 43, 611, 10.1016/0076-6879(75)43124-X Jacoby, 1990, Appearance of amikacin and tobramycin resistance due to 4′-aminoglycoside-nucleotidyltransferase [ANT(4′)-II] in gram negative pathogens, Antimicrob. Agents Chemother., 34, 2381, 10.1128/AAC.34.12.2381 Kettner, 1989, Ocurrence of 4′-O-aminoglycoside-nucleot- idyltransferase in clinical strains of Enterobacteriaceae, Infection, 17, 100, 10.1007/BF01646887 Lee, 1987, More than one DNA sequence encodes the 2″-O-adenyltransferase phenotype, Antimicrob. Agents Chemother, 31, 667, 10.1128/AAC.31.4.667 Lovering, 1987, The induction of resistance to tobramycin, netilmicin and amikacin in sensitive strains of Staphylococcus epidermidis producing APH(2″)+AAC(6′) enzymes Radberg, 1992, Selection and regrowth of subpopulations of variants resistant to aminoglycosides and vancomycin in Staphylococcus aureus and Staphylococcus epidermidis Rivera, 1986, Mecanismos de resistencia a antibióticos betalactámicos y aminociclitoles en una cepa hospitalaria de Staphylococcus epidermidis, Enf. Infec. y Microbiol. Clin., 4, 229 Scott, 1978, Aminoglycoside modification by gentamicin-resistant isolates of Staphylococcus aureus, Antimicrob. Agents Chemother., 13, 641, 10.1128/AAC.13.4.641 Storrs, 1988, Genetic analysis of gentamicin resistance in methicillin- and gentamicin- resistant strains of Staphylococcus aureus isolated in Dublin Hospitals, Antimicrob. Agents Chemother., 32, 1174, 10.1128/AAC.32.8.1174 Terán, 1991, Cloning, sequencing and use as a molecular probe of a gene encoding an aminoglycoside 6′-N-acetyltransferase of broad substrate profile, Antimicrob. Agents Chemother., 35, 714, 10.1128/AAC.35.4.714 Thornsberry, 1988, The development of antimicrobial resitance in Staphylococci, J. Antimicrob. Chemother., 21, 9, 10.1093/jac/21.suppl_C.9 Ubukata, 1984, Purification and characterization of aminoglycoside-modifying enzymes from Staphylococcus aureus and Staphylococcus epidermidis, Antimicrob. Agents Chemother., 25, 754, 10.1128/AAC.25.6.754 Van de Klundert, 1988, Bacterial resistance after in vitro exposure to amikacin and netilmicin, Eur. J. Clin. Microbiol., 5, 456, 10.1007/BF02075708