Rosmarinic Acid and Melissa officinalis Extracts Differently Affect Glioblastoma Cells

Figure 2

Effects of different concentrations of aqueous extract N1 on the viability of C6 cells. C6 cells were treated with different concentrations of aqueous extract (50–200 μM of RA) for 24 and 48 hours. Cell viability was assessed using MTT method. Data are presented as means of percentage of the untreated control cells ± SE (-5). versus control 24 h, versus control 48 h.