On the day 7 after operation, the mild rejection occurred hi the group ffl and no rejected trail existed in the group IV. The quantity of apoptosis was increased in the early stage and episode of graft rejection.

• 病理学检查结果：各组实验术后1、3d均未发现排斥反应，n组术后5、7d分别出现1度、2度排斥征象，111组仅在7d出现早期排斥反应迹象，W组在术后一直未见排斥反应证据。