Figure 2: The effect of hydroalcoholic aerial and root extracts on cell growth of A549. Cells were treated with 20 μg/mL aerial extract (A) and 40 μg/ml root extract (B) or doxorubicin-HCl. Cell growth was determined after 72 h using MTS solution. Time 0 demonstrates the number of cells before treatment. Viability of the cells was measured by MTT assay. Each bar represents time dependent changes in viability. Results are representative of four independent experiments with eight replicates and are presented as mean ± SEM. (a and b) significantly different from the control group; P < 0.01and P < 0.001 respectively (c and d ) significantly different from doxorubicin-HCl treated group in same incubation time P < 0.05 and P < 0.01.