Figure 1
The effects of aqueous and ethanolic extracts of P. giganteus on PC12 cell viability. (a) Effect of aqueous extract and ethanolic extract on the cell proliferation of PC12 cells. The mean absorbance obtained using medium with cells only was designated 100%. Results shown represent the mean ± SD; n = 3. *,¥ p < 0.05 for aqueous extract and ethanolic extract, respectively compared to the control 100%. (b) & (c): IC50 was obtained from the intercept on the x-axis (y = 0) of the regression line using the linear part of the percentage inhibition (% inh) curve (data not shown).