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J Antimicrob Chemother. 1987 Oct;20(4):513-7.

LY146032: activity and resistance development in vitro.

Author information

1
Department of Medical Microbiology, University Hospital Leiden, The Netherlands.

Abstract

LY146032, a new lipopeptide antibiotic, was compared with vancomycin, teicoplanin, cefamandole and ciprofloxacin, against 107 clinical isolates comprising methicillin-susceptible and methicillin-resistant Staphylococcus spp., Streptococcus faecalis and Corynebacterium spp. All staphylococci were susceptible to all agents, except that some of the methicillin-resistant strains were resistant to cefamandole. Only LY146032 and ciprofloxacin were bactericidal to Str. faecalis. Development of resistance was studied by serial transfers of ten selected strains. A stable greater than or equal to eight-fold increase of the MIC over the breakpoint was found to develop to a variable extent against all agents tested. Simultaneous development of resistance to any of the other antibiotics was registered in 11/200 tests.

PMID:
2824427
DOI:
10.1093/jac/20.4.513
[Indexed for MEDLINE]

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