Susceptibility of clinical isolates of Candida spp. to terconazole and other azole antifungal agents.

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Pfaller MA, Gerarden T

Susceptibility of clinical isolates of Candida spp. to terconazole and other azole antifungal agents.

Diagn Microbiol Infect Dis. 1989 Nov-Dec;12(6):467-71.

PubMed ID
2696620 [ View in PubMed
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Abstract

Terconazole is a triazole ketal derivative with potent, broad-spectrum antifungal activity. We investigated the in vitro activity of terconazole, miconazole, and clotrimazole, against 94 clinical isolates of Candida spp.: C. albicans (n = 68), C. tropicalis (n = 18), and C. parapsilosis (n = 8). In vitro susceptibility testing was performed using a broth microdilution method. The minimal inhibitory concentrations of terconazole were less than those of miconazole against C. albicans and C. parapsilosis but higher against C. tropicalis. Terconazole was more active than clotrimazole against C. parapsilosis and less active against C. albicans and C. tropicalis. Terconazole inhibited the uptake of 14C-labeled glucose, leucine, and hypoxanthine into C. albicans and caused the rapid release of intracellular K+. Based on these studies, terconazole has promising anticandidal activity and warrants further in vitro and in vivo investigation.

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