Figure 1. Imidapril activates the CD26 system by elevating CD26 activity in the bone marrow (BM) but not in the peripheral blood 12 days following laser-induced choroidal neovascularization. CD26 activity in the BM was assessed (A), and the number of CD26⁺ cells in the BM was determined (B). The plasma CD26 activity was measured (C), and the number of circulating CD26⁺ cells in the peripheral blood (PB) was determined (D). The number of white blood cells (WBCs) in the PB was measured (E). The values are expressed as the mean±standard deviation (n=5). The asterisk (*) indicates p<0.05. Dip-A represents diprotin-A. CNV represents choroidal neovascularization.