Effect of peptides on the migration of HUVECs stimulated by VEGF. HUVECs were pre-incubated with different concentrations of peptides in the upper chamber for 30 min before stimulation with VEGF (100 ng/ml) in the lower chamber. After incubation for 24 h, the migratory activity of cells was estimated. H-RN inhibited migration of HUVECs. Scrambled peptide did not inhibit migration up to 1 μM. (*p<0.05; each condition versus VEGF group).