生物衍生骨支架材料的组织相容性研究

目的 了解不同处理方法制得的3种生物衍生骨支架材料的组织相容性。方法 将物理化学方法处理制得的复合型完全脱蛋白骨（composite fully deproteinized bone,CFDB)、部分脱蛋白骨（partially deproteinized bone,PDPB)、部分脱钙骨（partially decalcified bone,PDCB)3种材料各10块分别植入兔肌肉内及骨膜下，进行一般观察、血清抗体检测、局部细胞免疫评估、常规HE染色，观测3种材料对机体的毒性作用、免疫效应及骨膜成骨的影响。结果 3种材料均无毒性作用，且能引导周围组织长入材料内；3种材料对骨膜成骨无不良影响，且能促进骨膜形成的软骨或类骨组织钙化形成新骨，并有一定的骨结合能力；3种材料引起机体免疫反应强弱为：PDCB＞PDPB＞CFDB。结论 CFDB、PDPB、PDCB3种天然生物衍生骨材料皆有良好的生物相容性。

Experimental studies on histocompatibility of three bio-derived bones

OBJECTIVE: To study the histocompatibility of three bio-derived bones. METHODS: After treatment with different physical and chemical method, three bio-derived bones, the composite fully deproteinized bone (CFDB), partially deproteinized bone (PDPB) and partially decalcified bone (PDCB) were implanted into rabbits. The toxicity, immune response and subperiosteum osteogenesis of CFDB, PDPB and PDCB were studied through gross observation, serum antibody measurement, evaluation of local cellular immune response and HE staining. RESULTS: The study showed that CFDB, PDPB and PDCB had no toxicity. They could conduct peripheral tissue to grow into them and had no harmful effect on subperiosteum osteogenesis. They could also promote cartilage and osteoid tissue derived from periosteum to calcify to new bone, and combine with the peripheral bone. The degree of immune response caused by them was in the sequence of PDCB > PDPB > CFDB. CONCLUSIONS: The three bio-derived bones, CFDB, PDPB and PDCB have good histocompatibility.