Figure 2.

Effect of N. sativa hydroalcoholic extract on the proliferation of ovary Cho cells. The cells were cultured for 24 h in the medium containing vehicle (0.8% DMSO) or 12.5-400 µg/ml of the extract. A: Phase-contrast light microscopic picture of Cho cells after 24 h of treatment with vehicle, 100 µg/ml, and 400 µg/ml of the extract (Magnification: 100×). B: Percent of cell viability as determined by MTT assay. Values are mean ± SEM (n = 6