Combined effect of BM-MNC seeding and losartan treatment. A) Comparison of the patency rate among the untreated control (6 mo), seeded control (6 mo), and short-term losartan with BM-MNC seeding (1 yr) groups. B) Comparison of luminal diameter between the native vein and short-term losartan with BM-MNC seeding. C) Representative histologic images of the seeded control, short-term losartan treatment with BM-MNC seeding, and native vein. Untreated control and seeded control (n = 25); short-term losartan with BM-MNC seeding (n = 21). **P < 0.01, ***P < 0.001.