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.
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Authors | A N B Ellepola |
Journal | Medical principles and practice : international journal of the Kuwait University, Health Science Centre
(Med Princ Pract)
Vol. 21
Issue 5
Pg. 442-6
( 2012)
ISSN: 1423-0151 [Electronic] Switzerland |
PMID | 22678101
(Publication Type: Journal Article)
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Copyright | Copyright © 2012 S. Karger AG, Basel. |
Chemical References |
- Antifungal Agents
- Amphotericin B
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Topics |
- Amphotericin B
(pharmacology)
- Antifungal Agents
(pharmacology)
- Candida
(drug effects, isolation & purification)
- Candidiasis, Oral
(microbiology)
- Humans
- Microbial Sensitivity Tests
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