Figure 5.

Effect of walnut septum extract on caspase-3 activity in A172 cells. A172 cells were cultured in the presence or absence of 70 µg/ml walnut septum extract, for 24 and 48 h. Caspase-3 activity was determined using a colorimetric protease assay. The data are presented as the mean ± SD from three independent experiments, performed in triplicate. Statistically significant differences were determined using independent Student's t-test. ^§P<0.0001, ^#P<0.001 versus control at the same incubation time. CTRL, control.