Fig. 4From: Cytotoxic, apoptotic, and genetic evaluations of Nigella sativa essential oil nanoemulsion against human hepatocellular carcinoma cell linesCytotoxicity of N. sativa essential oil (F0) and its nanoemulsions (F1 and F2) against hepatocellular carcinoma cell lines (HepG2 and Huh-7) in comparison to normal WI-38 cells. Cells were incubated with these formulas for 24 h (a), 48 h (b), and 72 h (c). Doses are expressed in μg/ml. Bars represent average of 3 replicates ± SD. *Statistically significant decrease of treated cancer cells compared to control (P < 0.05). #High statistically significant decrease of treated cancer cells compared to control (P < 0.01). @Non-significant change of treated WI-38 cells compared to control (P < 0.05)Back to article page