Keywords valved aortic homograft conduit;transplantation;animal model;proliferating nuclear antigen;apoptosis;alpha smooth muscle actin;immunity;calcification;

• 同种主动脉带瓣管道;移植;动物模型;增殖细胞核抗原;凋亡;免疫;平滑肌肌动蛋白;钙化;