中国组织工程研究

• 组织工程骨及软骨材料 tissue-engineered bone and cartilage materials • 上一篇    下一篇

浓缩红骨髓/富血小板纤维蛋白复合载自体骨膜碎片修复下颌骨缺损

郭灵雨,刘  凯,刘树发   

  1. 佳木斯大学附属口腔医院颌面外科,黑龙江省佳木斯市  154000
  • 收稿日期:2012-09-14 修回日期:2012-10-09 出版日期:2013-05-21 发布日期:2013-05-21
  • 通讯作者: 刘凯,硕士,主治医师,佳木斯大学附属口腔医院颌面外科,黑龙江省佳木斯市 154000 lkdx1980@163.com
  • 作者简介:郭灵雨★,男,1984年生,山东省菏泽市人,汉族,佳木斯大学在读硕士,主要从事干细胞支架研究工作。 yuling861012@sina.com

Concentrated red bone marrow/platelet-rich fibrin compound with an autologous periosteum debris scaffold for repair of mandibular defects

Guo Ling-yu, Liu Kai, Liu Shu-fa   

  1. Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jiamusi University, Jiamusi  154000, Heilongjiang Province, China
  • Received:2012-09-14 Revised:2012-10-09 Online:2013-05-21 Published:2013-05-21
  • Contact: Liu Kai, Master, Attending physician, Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jiamusi University, Jiamusi 154000, Heilongjiang Province, China lkdx1980@163.com
  • About author:Guo Ling-yu★, Studying for master’s degree, Department of Oral and Maxillofacial Surgery, Hospital of Stomatology, Jiamusi University, Jiamusi 154000, Heilongjiang Province, China yuling861012@sina.com

摘要:

背景:富血小板纤维蛋白支架结构有利于红骨髓中间充质干细胞及各种生长因子的生长,促进最终成骨。
目的:探讨浓缩红骨髓/富血小板纤维蛋白复合载自体骨膜碎片支架材料修复兔下颌骨缺损的可行性。
方法:制备新西兰大白兔双侧下颌骨人工制备骨缺损模型,采用自身对照方法,左侧为实验侧,植入自体浓缩红骨髓/富血小板纤维蛋白复合载自体骨膜碎片与纳米羟基磷灰石支架材料;右侧为对照侧,植入自体骨膜碎片复合纳米羟基磷灰石支架材料。术后2,4,8,12周制备组织标本,行大体观察、影像学分析、苏木精-伊红染色、扫描电镜检测。
结果与结论:影像学检查及组织学染色显示,实验侧骨缺损处愈合程度、成骨速度及质量明显优于对照侧;扫描电镜显示实验侧复合材料与组织相容性好,无炎症刺激反应;牙CT分析数据及新骨形成情况分别证明实验侧骨密度CT值显著高于对照侧(P < 0.05),实验侧新生骨面积显著高于对照侧(P < 0.05)。表明浓缩红骨髓/富血小板纤维蛋白复合载自体骨膜碎片支架材料具有明显骨诱导作用,可望成为临床应用中修复颌骨缺损的新型材料。

关键词: 生物材料, 组织工程骨材料, 浓缩红骨髓, 富血小板纤维蛋白, 纳米羟基磷灰石, 骨, 颌骨缺损, 自体骨膜

Abstract:

BACKGROUND: The platelet-rich fibrin scaffold structure is conducive to the growth of red bone marrow mesenchymal stem cells and various growth factors, promoting final osteogenesis. 
OBJECTIVE: To investigate the feasibility of the concentrated red bone marrow/platelet-rich fibrin compound with the autologous periosteum debris scaffold for repair of rabbit mandibular defects.
METHODS: Bilateral mandibular bone defect models were prepared in New Zealand white rabbits using self-control method. The left side was the experimental side, and implanted with the concentrated red bone marrow/platelet-rich fibrin compound with the autologous periosteum debris scaffolds; the right side was the control side, and implanted with periosteum fragments and nano-hydroxyapatite composite scaffolds. All experimental animals were sacrificed after 2, 4, 8, 12 weeks to prepare tissue samples for general observation, imaging analysis, hematoxylin-eosin staining and scanning electron microscope detection.
RESULTS AND CONCLUSION: The imaging examination and histological staining showed that the experimental side was superior to the control side in the aspects of bone healing, osteogenesis speed and quality. Under the scanning electron microscope, the experimental side had better compatibility with surrounding tissues and no inflammation reaction. The data of the tooth CT and evidence of new bone formation showed the bone density and new bone area of the experimental side were significantly higher than that of the control side (P < 0.05). These data indicate that concentrated red bone marrow/platelet-rich fibrin compound with the autologous periosteum debris scaffolds has an obvious osteoinductive role, which is expected to be a new-type material for clinical repair of mandibular defects.

Key words: biomaterials, tissue-engineered bone materials, concentrated red bone marrow, platelet-rich fibrin, nano-hydroxyapatite, bone, mandibular defects, autologous periosteum

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