Fig. 6

Bar graph representing mean values of MTT assay at 7 and 14 days’ time intervals. Results of MTT assay using two different concentrations of sEVs (20 and 50 µg/mL) with and without 0.2 mg/mL MTA combination and the DPCs alone mean values of MTT assay among tested groups. Statistical comparisons between groups treated for 14 days and 7 days are labeled with # symbols: # p <.05, ## p <.01, ### p <.001. Bars above groups marked with *** indicate significant differences between 7-day and 14-day treatments unless otherwise specified. Statistical significance within groups is denoted by * symbols: * p <.05, ** p <.01, *** p <.001