去细胞组织工程猪肺动脉带瓣管道的生物相容性研究
发布时间:2019-05-29 04:40
【摘要】:目的:探讨去细胞组织工程猪肺动脉带瓣管道的生物相容性。方法:①新鲜猪肺动脉带瓣管道组织3份,A组为对照组,B、C组采用胰蛋白酶+Triton X-100对新鲜猪肺动脉带瓣管道进行去细胞处理,C组在去细胞处理后行明胶嵌合再处理;②对3组瓣膜及管壁组织行大鼠皮下包埋实验,8周后观察材料的组织相容性和生长情况;③通过动态凝血试验、溶血试验、血小板粘附性能试验分析3种组织材料的血液相容性。结果:与A组相比,B组及C组的炎性细胞浸润显著减少,C组仅有轻微组织反应;B、C组材料组织相容性好,并于8周后有纤维细胞长入。相对A组及B组,C组的瓣膜及管壁组织具有更低的凝血率,OD-凝血时间曲线下降更缓慢且吸光度高,同时血小板粘附更少且没有明显变形和伪足。结论:这种去细胞组织工程猪肺动脉带瓣管道不仅具有极低的免疫原性,而且具有一定的生长潜能、良好的组织相容性及血液相容性,有可能成为一种新的、理想的组织工程肺动脉带瓣管道支架材料。
[Abstract]:Objective: to investigate the biocompatibility of valved pulmonary artery duct in acellular tissue engineering pigs. Methods: (1) three fresh pig pulmonary artery valved ducts were taken as control group. Group C was treated with trypsin Triton X 鈮,
本文编号:2487658
[Abstract]:Objective: to investigate the biocompatibility of valved pulmonary artery duct in acellular tissue engineering pigs. Methods: (1) three fresh pig pulmonary artery valved ducts were taken as control group. Group C was treated with trypsin Triton X 鈮,
本文编号:2487658
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