中华实验外科杂志
中華實驗外科雜誌
중화실험외과잡지
CHINESE JOURNAL OF EXPERIMENTAL SURGERY
2012年
5期
969-971
,共3页
胡行健%刘隽炜%史嘉玮%董念国
鬍行健%劉雋煒%史嘉瑋%董唸國
호행건%류준위%사가위%동념국
组织工程%异体异位移植%带瓣管道
組織工程%異體異位移植%帶瓣管道
조직공정%이체이위이식%대판관도
Tissue engineering%Heterotropic xenograft%Valved conduit
目的 构建一种操作简便、重复性高的小动物带瓣管道异种异位移植模型.方法 实验组采用四分枝聚乙二醇交联去细胞的SD大鼠肺动脉带瓣管道作为移植物,以端端吻合方式间断缝合于新西兰白兔右颈总动脉,术后第7、14、28天行多普勒超声检查管道通畅情况,28 d后取出管道行石蜡切片形态学检查.对照组大鼠接受假手术.结果 手术成功率实验组96.0% (24/25),对照组100.0%(20/20),28 d实验组移植管道通畅率87.5%(21/24),对照组吻合口通畅率95.0%(19/20),两组间差异均无统计学意义(P>0.05),苏木素-伊红(HE)染色可见局部无明显炎症细胞浸润,瓣膜形态、结构完整.结论 此模型操作简便、构建迅速、成功率高,有助于检测组织工程瓣膜在体性能.
目的 構建一種操作簡便、重複性高的小動物帶瓣管道異種異位移植模型.方法 實驗組採用四分枝聚乙二醇交聯去細胞的SD大鼠肺動脈帶瓣管道作為移植物,以耑耑吻閤方式間斷縫閤于新西蘭白兔右頸總動脈,術後第7、14、28天行多普勒超聲檢查管道通暢情況,28 d後取齣管道行石蠟切片形態學檢查.對照組大鼠接受假手術.結果 手術成功率實驗組96.0% (24/25),對照組100.0%(20/20),28 d實驗組移植管道通暢率87.5%(21/24),對照組吻閤口通暢率95.0%(19/20),兩組間差異均無統計學意義(P>0.05),囌木素-伊紅(HE)染色可見跼部無明顯炎癥細胞浸潤,瓣膜形態、結構完整.結論 此模型操作簡便、構建迅速、成功率高,有助于檢測組織工程瓣膜在體性能.
목적 구건일충조작간편、중복성고적소동물대판관도이충이위이식모형.방법 실험조채용사분지취을이순교련거세포적SD대서폐동맥대판관도작위이식물,이단단문합방식간단봉합우신서란백토우경총동맥,술후제7、14、28천행다보륵초성검사관도통창정황,28 d후취출관도행석사절편형태학검사.대조조대서접수가수술.결과 수술성공솔실험조96.0% (24/25),대조조100.0%(20/20),28 d실험조이식관도통창솔87.5%(21/24),대조조문합구통창솔95.0%(19/20),량조간차이균무통계학의의(P>0.05),소목소-이홍(HE)염색가견국부무명현염증세포침윤,판막형태、결구완정.결론 차모형조작간편、구건신속、성공솔고,유조우검측조직공정판막재체성능.
Objective To explore a simple and repeatable method for establishing an in vivo animal model of tissue-engineered valved conduit.Methods Forty-five adult female New Zealand white rabbits,weighing 2.5-3.0 kg,were assigned randomly into two groups:experimental group ( n =25) and control group (n =20).Decellularized valved conduits harvested form female SD rats' aorta were crosslinked with branched poly (ethylene glycol) and then were end-to-end anstomosised with interrupted suture into the right common carotid artery of rabbits in the experimental group.Sham operations were performed in the control group.The patency rate of the transplants was tested in vivo by color Doppler ultrasound on the postoperative day 7,14 and 28.Then the transplants were removed to be analyzed by hematoxylin and eosin (HE) staining.Results There was no significant difference in the success rate between the experiment group and control group (96.0% vs. 100.0%,P>0.05) as well as the patency rate (87.5% vs.95.0%,P >0.05).HE staining showed little presence of inflammatory cells and structural integrity of the valves.Conclusion The results suggest that this novel model could provide a convenient and economical way with high success rate for estimating the in vivo functions and characteristics of tissue engineering valved conduit.