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Mem. Inst. Oswaldo Cruz ; 106(8): 1045-1048, Dec. 2011. tab
Article in English | LILACS | ID: lil-610984

ABSTRACT

The aim of the present study was to evaluate the effect of cotrimoxazole on the in vitro susceptibility of Coccidioides posadasii strains to antifungals. A total of 18 strains of C. posadasii isolated in Brazil were evaluated in this study. The assays were performed in accordance with the Clinical and Laboratory Standards Institute guidelines and the combinations were tested using the checkerboard method. The minimum inhibitory concentrations were reduced by 11, 2.4, 4.3 and 3.5 times for amphotericin B, itraconazole, fluconazole and voriconazole, respectively. Moreover, it was seen that cotrimoxazole itself inhibited C. posadasii strains in vitro. The impairment of folic acid synthesis may be a potential antifungal target for C. posadasii.


Subject(s)
Humans , Antifungal Agents/pharmacology , Coccidioides/drug effects , Triazoles/pharmacology , Trimethoprim, Sulfamethoxazole Drug Combination/pharmacology , Coccidioides/classification , Drug Synergism , Parasitic Sensitivity Tests/methods , Time Factors
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