Figure 1

Dose response studies of the plant extracts on two gastric cancer cell lines: (A) Kato-III and (B) NUGC-4. The cells were treated with various concentrations (0, 1.25, 2.5, 5, 10 and 20 μg/mL) of S. gratum, J. gangetica and L. flava for 72 h. The antiproliferative effect was measured by MTT assay. Results were expressed as the means ±SD from three independent experiments.