Figure 4.

The effect of dietary vitamin D supplementation on tumor growth. Animals were randomized to receive either a standard diet (SD) or high vitamin D diet (HVD) after hydrodynamic transfection. g-luc activity (a) and AFP (b) were assessed at 3, 6, and 9 weeks after transfection in both groups. The p values for differences between each group are indicated at 6 and 9 weeks. Ultrasound score was assessed in (c) SD (n = 6) and (d) HVD (n = 5) groups at 2 weekly intervals starting at 4 weeks after transfection. The data represent the mean value ± SEM of the score.