Fig. 2

A Cell viability quantified by the resazurin assay of MB49 cells exposed for 24 h to different concentrations of TPG (6.25, 12.5, 25 and 50%). Cells grown in the absence of TPG were considered as a control. B Viability of harvested MB49 cells initially exposed to TPG (25 and 50%) for 24 h and re-plated for an additional 24 h. Cells grown in the absence of TPG were considered as a control. Data are expressed as mean ± SEM and values with p < 0.05 were considered significant after analysis with the one-way ANOVA test and Tukey`s test for post-hoc analysis. Bars with distinct letters show significant differences in viability between groups. Micrographs of the MB49 culture with and without TPG exposure (25 and 50%), showing that despite the cell viability having significantly decreased, especially in the TPG50 group, the cells remained adhered to the microplate