In vitro activities of antifungal agents alone and in combination against fluconazole-susceptible and -resistant strains of Candida dubliniensis

In the present study we used two groups of Candida dubliniensis strains: one containing fluconazole-susceptible clinical isolates and another containing fluconazole-resistant laboratory derivative from the former to examine the changes on susceptibility accompanying the development of resistance to fluconazole. Our findings confirmed the ability of C. dubliniensis isolates to become resistant to fluconazole and indicated that this resistance was crossed with ketoconazole, itraconazole, ravuconazole and terbinafine. We also tested combinations of terbinafine, amphotericin B, itraconazole and voriconazole against both groups of isolates in a checkerboard assay. Surprisingly, most combinations evidenced indifferent interactions, and the best synergism appeared when terbinafine and itraconazole were combined against the fluconazole-resistant group.

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Bibliographic Details
Main Authors: Scheid,Liliane Alves, Mario,Débora Alves Nunes, Kubiça,Thaís Felli, Santurio,Janio Morais, Alves,Sydney Hartz
Format: Digital revista
Language:English
Published: Brazilian Society of Infectious Diseases 2012
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-86702012000100014
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