Figure 1

MTS-Assay with xanthohumol concentrations from 0 up to 8 µM, analyzed 6, 12, 24 and 48 h after application. Low doses enhanced cementoblast cell viability while 4 and 8 µM exerted cytotoxic effects, especially at late time points. Normalized to control (red line); *p < 0.05 was considered statistically significant by Welch-ANOVA.