Suscetibilidade de isolados orais de Candida spp provenientes de pacientes com doença periodontal aos antifungicos azolicos e a Anfotericina B / Susceptibility of oral Candida ssp isolated from pacients with periodontal diseases to antifungals azoles and Anfotecin B

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

The susceptibility to antifungal was evaluated for Candida spp isolated from three different sites of the oral cavity from 19 patients with periodontal illness, known as: periodontal pocket, oral mucosa and ridge gengival. A total of 140 yeasts were isolated and identified by classical methods in Micology. From this, 105 were identified as C. albicans, 16 as C. tropicales, 5 as C. parapsilosis, 4 as C. Krusei, 3 as C. famata, 3 as C.norvegensis, 3 as C.dubliensis and 1 as C. lusitaniae. The antifungal Fluconozole, Itraconazole, Ketoconazole and Anfotericin B were tested against the yeasts according to the NCCLS padronization. Among the samples of C. albicans, 88% showed susceptibility depending on the concentration (SCD) and 3,6% were resistant to at least one antifungal azoles studied. Among other species, 57% presented SDC and 42,8% showed resistance to at least one of the antifungal azoles tested. Regarding to Anfotericin B, 90% of the C. albicans isolates and 3% of the ?non- albicans? showed resistance to this antifungal drug. There was no occurrence of resistance to the Fluconozale and only 3,6% of C. albicans and 40% of the ?non-albicans? were SDC to this antifungal. The values of Minimum Inhibitory Concentration (MIC50 and MIC90) of the antifungal azoles to the samples of C. albicans were inferior to the ones found in the other species. For the Anfoterecin B, the values of MIC50 and MIC90 were not different among C. albicans and the other species. Besides the low percentage indice of resistance, it was observed high occurrence of SDC to Itraconazole and Cetoconazole. Patients with periondontal illness presented relevant levels of colonization by Candida spp, mainly at the oral mucosa and periodontal pocket showing important occurrence of SDC and resistance against the antifungals drugs tested according to the recent literature data about the decrease of sensibility to antifungals among Candida species

ASSUNTO(S)

testes de sensibilidade bacteriana leveduras (fungos) antibiotics yeast fungi antibioticos microbial susceptibility tests

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