Objective: The study was to assess the feasibility of gene transfer to homograft conduits after cryopreservation. Methods: The New Zealand white rabbits (adult n=15, infant n=15) were divided into five groups. Each group included three recipients(adult) and three donors(infant). Six homograft conduits (three aortic and three pulmonary) were havested from donors and then were stored in liquid nitrogen. Homograft conduits in five different groups were cryopreserved for 7、14、30、90 and 180 days, respectively. A...