脱矿牙基质 (DDM) -纤维素 (FG) 化合物的愈合能力和骨质生成模式
Jibo Bao1,2,3, Xunan Fu4, Yirong Wu5
1Department of Oral Biology, Faculty of Dentistry, Mahidol University, 6 Yothi Street, Ratchathewi, Bangkok, Thailand.
Scientific reports
|August 12, 2023
概括
脱矿牙矩阵 (DDM) 与纤维素 (FG) 结合,可以增强骨再生. 最佳的DDM-FG比率显著改善了动物模型中的新骨形成和骨质生成活性,提供了一个有前途的骨移植解决方案.
科学领域:
- 生物材料科学 生物材料科学
- 再生医学是一种再生医学.
- 口腔和牙面部外科手术
背景情况:
- 脱矿牙质矩阵 (DDM) 是一种被公认的骨传导和骨诱导材料,用于骨增强.
- 颗粒型DDM在骨缺陷中实现稳定整合方面存在挑战.
- 纤维素 (FG) 是一种生物相容密封剂和粘合剂,有可能改善移植物处理和保留.
研究的目的:
- 在最佳比例下研究非矿物化牙基质和纤维素复合物 (DDM-FG) 的生物效应和骨质诱导性.
- 为了评估DDM-FG化合物在促进骨愈合的有效性,在关键大小的骨缺陷模型中.
- 评估DDM-FG对骨质母细胞增殖,分化和新骨形成的影响,在体外和体内.
主要方法:
- 在实验室共培养小鼠骨质细胞MC3T3-E1细胞,具有不同的DDM-FG比率,以评估骨质细胞活性 (ALP,OC,矿化结节).
- 建立一个子骨关键骨缺陷模型.
- 植入DDM,DDM-FG (1g:0.1ml和1g:0.5ml),或空白对照检测缺陷,然后在2,4,8和12周进行分析.
- 使用微型计算机断层扫描 (Micro-CT) 评估3D骨体积和组织分析以检测组织再生和骨形成.
主要成果:
- 实验室研究表明,1:0.1的DDM-FG比率增强了性酸酶 (ALP) 活性和矿化结节的形成,而1:0.5的比率增加了骨质素 (OC) 的产生.
- 在体内,所有DDM-FG组在所有时间点都显示出与空白对照组相比,3D新骨体积显著增加.
- DDM-FG2 (1g:0.5ml) 组在早期愈合阶段表现出优异的新骨体积,并在4周后增加原蛋白合成,表明骨早期愈合得到改善.
结论:
- 脱矿牙基质和纤维素在最佳比例的组合显著增强骨质活动和骨再生.
- DDM-FG化合物,特别是1:0.5的比例,显示了作为一个改善的骨移植材料的承诺,用于关键骨缺陷.
- 这项研究证实了DDM和FG在促进有效的骨愈合和组织整合方面的协同潜力.
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