Boxplots of the expression of VEGF and bFGF. Distribution boxplot of the expression of VEGF in monocytes/macrophages (A, B), bFGF in monocytes /macrophages (C, D) and VEGF in lymphocytes (E, F). The boxplots A, C and E demonstrate the expression in the control, CAD SA and CAD UA group. The boxplots B, D and F demonstrate the expression in the above groups classified for diabetes. The y-axis values represent the VEGF/β2-microglobulin and bFGF/β2-microglobulin ratios accordingly. The ratios were calculated by the optical integrated density of each gene divided by that of β2-microglobulin. The optical integrated density was calculated by digital image analysis (Scion image) of acrylamide gel electrophoresis of the RT-PCR products. Mf: macrophages, Ly: non-adherent lymphocyte fraction, ns: non-significant.