Research Article
Parasite Killing of Leishmania (V) braziliensis by Standardized Propolis Extracts
Figure 6
Cell cytotoxicity assessment by Alamar Blue. Data representative of viability of uninfected (a) human and (b) murine macrophages treated for 48 h with either medium alone or the dry, alcoholic, or glycolic (10, 50, and 100 μg/mL) extracts of propolis. Hydrogen peroxide (H2O2) was used as a positive control for cell death. Bars represent mean ± SD values of three representative experiments performed using cells from six healthy human donors or in quintuplicate for murine cells.
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