Figure 4. Dose–response analysis on the effect of VEGF on HCEC survival. The results indicated that VEGF supplementation into culture
medium for 4 days enhances HCEC survival at 1, 10, and 100 ng/ml medium, compared to control (A; *p<0.05). The morphological aspect of HCECs exposed to control medium without and with 100 ng/ml of VEGF is shown in B and C, respectively. Scale bars: B, C=25μm.