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- Title
Amphotericin B-Induced in vitro Postantifungal Effect on Candida Species of Oral Origin.
- Authors
Ellepola, A.N.B.
- Abstract
Objective: The aim of this investigation was to measure the postantifungal effect (PAFE) of 6 different oral Candida species following exposure to amphotericin B. Materials and Methods: Five oral isolates each of Candida albicans, Candida tropicalis, Candida krusei, Candida parapsilosis, Candida glabrata and Candida guilliermondii (total of 30 isolates) were examined for the presence of PAFE after 1 h of exposure to the minimum inhibitory concentration of amphotericin B. The PAFE was determined as the difference in time (hours) required for the growth of the drug-free control and the drug-exposed test cultures to increase to 0.05 absorbance level following removal of amphotericin B. Results: The mean duration of amphotericin B-induced PAFE was lowest for C. albicans (5.91 ± 0.31 h) and greatest for C. parapsilosis (12.72 ± 0.11 h), while C. guilliermondii (8.32 ± 0.33 h), C. glabrata (8.43± 0.21 h), C. krusei (9.68 ± 0.23 h) and C. tropicalis (10.98 ± 0.18 h) elicited intermediate values. Conclusion: Even a limited exposure to sublethal concentrations of amphotericin B suppressed growth of Candida species of oral origin. The significant variation in amphotericin B-induced PAFE amongst different Candida species may have clinical implications in terms of amphotericin B regimens used in the management of oral candidiasis. Copyright © 2012 S. Karger AG, Basel
- Subjects
CANDIDA; AMPHOTERICIN B; POLYENE antibiotics; CANDIDA albicans; CANDIDA tropicalis; CANDIDIASIS
- Publication
Medical Principles & Practice, 2012, Vol 21, Issue 5, p442
- ISSN
1011-7571
- Publication type
Article
- DOI
10.1159/000339080