1887

Abstract

The aim of the present study was to evaluate the activity of baicalein, the flavone constituent of , and synergism of the combination of baicalein and fluconazole against , and . The MIC (lowest concentration at which there was 50 % inhibition of growth) of baicalein alone against six strains ranged from 13 to 104 µg ml. For the three species tested, exposure to baicalein at the MIC concentrations obtained for each strain resulted in a high loss of viability. The fluconazole plus baicalein combination markedly reduced the MICs of both drugs for all three strains analysed. In addition, a synergistic effect between baicalein and fluconazole was observed for in terms of MIC (fractional inhibitory concentration index = 0.207). Scanning electron microscopy analysis revealed that yeast cells exposed to baicalein at MIC produced a profusely flocculent extracellular material, resembling a biofilm-like structure. In conclusion, these results showed the antifungal capability of baicalein against species and highlight a promising role of baicalein when used in combination with fluconazole against infections.

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2012-12-01
2020-01-20
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