Fig 2. Cells were treated for 24 h with various concentrations of crude extract of P. fulgens root (PRE) and its ethyl acetate, hexane and nbutanol soluble fractions.

After the indicated time of treatment, cells were maintained without test materials for 10 days. At day 10, the grown colonies were counted and percentage of survival fraction was then calculated and shown in (A and B) in MCF-7 cells and (C and D) in U87 cells. Results were expressed as means ± SD for three independent determinations.