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Viability of Vero cells and human skin fibroblasts exposed to WLBU2. Vero cells or human skin fibroblasts were incubated with different concentrations of WLBU2 or media alone (control) for 24 hrs. Cell viability was determined using the MTT assay. Experiments were run in triplicates. Bars represent means±standard error of the mean. WLBU2 concentrations in µM correspond to 5.313, 10.625, 21.250, 42.500, 85, 170, 340, 680 µg/mL, respectively.
