In vitro activity of levofloxacin, singly and in combination with rifamycin analogs, against Mycobacterium leprae

Author:

Dhople A M1,Ibanez M A1

Affiliation:

1. Department of Biological Sciences, Florida Institute of Technology, Melbourne 32901-6988, USA.

Abstract

The in vitro susceptibility of Mycobacterium leprae to levofloxacin was studied by using two biochemical parameters to measure the metabolic activity of the organism. Levofloxacin consistently exhibited twofold greater bactericidal activity than ofloxacin, with the MIC being 0.75 microgram/ml. When combined with one of the three rifamycin analogs, synergism was obtained with KRM-1648 and rifabutin but not with rifampin.

Publisher

American Society for Microbiology

Subject

Infectious Diseases,Pharmacology (medical),Pharmacology

Reference21 articles.

1. Evaluation of a bioluminescence assay for rapid antimicrobial susceptibility testing of mycobacteria;Beckers B.;Eur. J. Clin. Microbiol.,1985

2. In vitro system using adenosine triphosphate and [3H] thymidine to determine drug sensitivity of Mycobacterium leprae;Dhople A. M.;IRCS (Int. Res. Commun. Syst.) J. Med. Sci.,1986

3. Limited in vitro multiplication of Mycobacterium leprae;Dhople A. M.;Ann. Inst. Pasteur/Microbiol. (Paris),1988

4. In vitro growth of Mycobacterium lepraemurium, an obligate intracellular microbe;Dhople A. M.;Science,1977

5. In vivo susceptibility of Mycobacterium leprae to ofloxacin either singly or in combination with rifampicin and rifabutin;Dhople A. M.;Arzneim-Forsch./Drug Res.,1994

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