Figure 1: The effect of three different hydroethanolic gradients of Moringa oleifera leaves extract (90%, 70%, and 50%) on the viability of RAW 264.7 cells. Cytotoxicity was measured by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide reduction assay after 24 h treatment with Moringa oleifera extract (15.62-1000) µg/ml. Values are presented as the mean of three independent experiments in triplicate, and data are shown as mean ± standard deviation. Statistical analysis using one-way analysis of variance with Tukey's post-hoc test (*P < 0.05) as compared with the untreated control group