cuff管套入法建立大鼠同种异体睾丸移植模型

目的:探索应用cuff管套入法建立大鼠同种异体睾丸移植模型的新方法。方法:60只健康雄性近交系W istar大鼠分别作为供、受体,显微镜下(×10),连同左侧供睾的动、静脉一起截取与其相连的腹主动脉段和左髂总静脉段,以丝线结扎左髂总静脉段的远断端,其余3断端分别套上cuff管后袖套状翻转并以丝线环扎之,然后分别将外套cuff管的动、静脉嵌入切开的受鼠的腹主动脉内和左髂总静脉内后再环扎,端端吻合受、供体输精管,摘除受鼠双侧睾丸。结果:30只大鼠正式手术,27只长期存活直至处死,2只死于麻痹性肠梗阻伴感染,1只因术中大出血死亡。27只长期存活的受体中,4、4、5例于术后14 d、28 d、56 d探查植睾,血供情况良好,关腹存活至处死;余14只用于其他实验。受体左下肢术后无明显水肿、淤血和坏死。结论:应用cuff管技术建立的大鼠睾丸移植模型具有操作简便、成功率高、效果可靠等优点,可作为睾丸移植的研究模型。

Three-cuff Method for Establishing an Allogeneic Testis Transplantation Model in the Rat

Objective: To establish a model of testis transplantation in the rat using cuff techniques. Methods: Sixty healthy inbred Wistar rats were included as donors and recipients. The testicular artery with the aortic segment with two cuffs was anastomosed to the recipient's aorta and the testicular vein with a cuff was anastomosed to the left common iliac vein of the recipient. The vas deferens was end-to-end anastomosed. Results: Of the 30 rats undergoing transplantation, 27 survived, 2 died from paralytic intestinal obstruction and 1 died from hemorrhage. Of the 27 survivals, 4, 4 and 5 were vivisected on the 14th, 28th and 56th day after operation, respectively, showing a good blood supply to the graft. Another 14 rats were used in another experiment, which revealed no obvious congestion, necrosis and edema in the left lower limb of the recipients. Conclusion: The model of allogeneic rat testis transplantation established with cuff techniques, simple, stable and reliable, can be used as a tool for the study of testis transplantation.