Effects of Dextran-Catechin treatment on HMEC-1 angiogenic activity. (a) Representative photographs of HMEC-1 cells in Matrigel™ assays following 8 h Dextran-Catechin treatment. Inset, % of inhibition as compared to untreated control cells; N.S. non-significant; Scale bar 200 µM. (b) Total surface area of vascular structure measured. Columns, n = 3; bars, SEM (***p < 0.001, ****p < 0.0001).