中国组织工程研究 ›› 2016, Vol. 20 ›› Issue (25): 3713-3719.doi: 10.3969/j.issn.2095-4344.2016.25.010

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

人工听骨链重建材料生物相容性、特性及修复喉软骨缺损的效果

郭 蓓,袁 琨,陈 伟   

  1. 华中科技大学同济医学院附属武汉市中心医院,湖北省武汉市 430014
  • 收稿日期:2016-05-07 出版日期:2016-06-17 发布日期:2016-06-17
  • 通讯作者: 袁琨,主任医师,华中科技大学同济医学院附属武汉市中心医院,湖北省武汉市 430014
  • 作者简介:郭蓓,女 ,1978年生,湖北省武汉市人,汉族, 2010年武汉大学毕业,硕士,主治医师,主要从事耳鼻咽喉、头颈外科方面的研究。
  • 基金资助:

     2013年河北省自然科学基金项目(2013CFC082)

Artificial ossicular chain reconstruction: biocompatibility, properties and laryngecartilage defect repair

Guo Bei, Yuan Kun, Chen Wei   

  1. Affiliated Wuhan Central Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430014, Hubei Province, China
  • Received:2016-05-07 Online:2016-06-17 Published:2016-06-17
  • Contact: Yuan Kun, Chief physician, Affiliated Wuhan Central Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430014, Hubei Province, China
  • About author:Guo Bei, Master, Attending physician, Affiliated Wuhan Central Hospital, Tongji Medical College of Huazhong University of Science and Technology, Wuhan 430014, Hubei Province, China
  • Supported by:

    the Natural Science Foundation of Hebei Province in 2013, No. 2013CFC082

摘要:

文章快速阅读:

 

文题释义:
软骨不易修复的原因:
由于软骨的代谢活跃而修复能力有限,没有血管的供应,在损伤之后不能形成纤维凝块,没有炎性细胞迁移进入,也没有血管未分化细胞进入损伤的部位,所以不易进行修复。另外,软骨本身在损伤部位缺乏未分化的细胞,软骨细胞是一种高分化的细胞,损伤之后不能够迁移生长到损伤的软骨之中,而随着年龄的增长,软骨细胞的分裂能力是降低的,同时产生细胞基质的能力也是降低的。
多孔羟基磷灰石的特点:能为纤维细胞和骨组织向其中生长提供通道和生长空间,增大组织液与羟基磷灰石接触表面积,加快反应过程。相互连通的孔隙有利于组织液的微循环并为羟基磷灰石深部的新生骨组织提供营养,使界面的软硬组织都长入孔隙内,形成纤维组织和新生成的骨组织交叉结合状态。这种界面能保持人体正常的代谢关系,使骨-材料界面结构具有生理结合。多孔羟基磷灰石具有独特的骨架结构,植入肌肉或韧带等软组织后,容易被一薄层结缔组织紧密包裹,作穿皮种植时能与颈部和上皮组织密合,无炎症或感染发生,也可用于人工血管、气管等软组织的修复。

 

摘要
背景:
喉软骨缺损替代品较多,包括自体软骨、同种异体软骨以及金属支架等,这些材料在喉软骨缺损中均能取得理想效果,但是也存在许多不足。
目的:研究人工听骨链重建材料生物相容性及其特性,探讨人工听骨链重建材料在喉软骨缺损中的修复效果。
方法:①从新鲜人骨中提取骨形态发生蛋白,将羟基磷灰石高温煅烧后制备多孔羟基磷灰石,将获得的多孔羟基磷灰石听骨放入骨形态发生蛋白溶液中,制备骨形态发生蛋白-羟基磷灰石人工听骨链重建材料,分析材料的生物相容性及特性。②将40只新西兰雄性成年白兔随机分为多孔羟基磷灰石组和人工听骨链重建材料组,每组20只。制备新西兰雄性成年白兔喉软骨缺损模型,多孔羟基磷灰石组采用多孔羟基磷灰石材料进行修复,人工听骨链重建材料组采用骨形态发生蛋白-羟基磷灰石人工听骨链重建材料修复。
结果和结论:①不同孔隙率人工听骨重建材料抗压强度和抗压强度差异有显著性意义;②骨形态发生蛋白-羟基磷灰石人工听骨链重建材料外表面空洞未形成对称性球状,外观表现为多边形,空隙尺寸为100-200 μm;③2组大鼠分别植入骨形态发生蛋白-多孔羟基磷灰石和骨形态发生蛋白-羟基磷灰石人工听骨链重建材料后未见明显的不良反应。但人工听骨链重建材料组出现较多的结缔组织及明显骨性结节,且材料降解速度较快。④提示骨形态发生蛋白-羟基磷灰石人工听骨链重建材料具有良好的生物相容性和特性,利用其修复喉软骨缺损效果理想,具有较高的临床应用价值。

ORCID: 0000-0003-3339-7895(郭蓓)

关键词: 生物材料, 软骨生物材料, 人工听骨链重建材料, 生物相容性, 喉软骨缺损, 修复, 多孔羟基磷灰石, 骨形态发生蛋白, 修复效果, 抗压强度, 河北省自然科学基金

Abstract:

BACKGROUND: DefectedLaryngeal cartilage has many alternatives, including autologous cartilage, allograft cartilage and metal stents. Although these materials can achieve desired outcomes in laryngeal cartilage defect repair, certain limitations exist.

 

OBJECTIVE: To investigate the biocompatibility and properties of artificial ossicular chain reconstruction materials, and to explore the effect of artificial ossicular chain reconstruction materials on laryngeal cartilage defect repair.

 

METHODS: Porous hydroxyapatite otosteon was prepared by high-temperature calcination of hydroxyapatite, followed by cultured in bone morphogenetic protein solution extracted from fresh human bone to construct bone morphogenetic protein-hydroxyapatite artificial ossicular chain reconstruction material. And then, the biocompatibility and characteristics of the material were analyzed. Forty adult male New Zealand white rabbits were randomly divided into porous hydroxyapatite group and artificial ossicular chain reconstruction material group (n=20 per group), and underwent repair with porous hydroxyapatite material and bone morphogenetic protein-hydroxyapatite artificial ossicular chain reconstruction material respectively after modeling of laryngeal cartilage defect.

 

RESULTS AND CONCLUSION: There was a significant difference in compressive strength of artificial ossicular chain reconstruction materials with different porosities. No symmetry sphere formed in hollows of the outer surface of the material, with polygonal appearance and with a pore size of 100-200 μm. There were no obvious adverse reactions in both two groups after implantation, but in the artificial ossicular chain reconstruction material group, numerous fibrous connective tissues and obvious bone nodules appeared, and the degradation rate of the material was faster. These results suggest that the bone morphogenetic protein-hydroxyapatite artificial ossicular chain reconstruction material exhibits good biocompatibility and properties, which will obtain satisfactory outcomes for laryngeal cartilage defect repair. So, the material holds a great value of clinical application.

 

 

中国组织工程研究杂志出版内容重点:生物材料;骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性;组织工程

Key words: Cartilage, Histocompatibility, Tissue Engineering

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