仿生骨状复合水凝支架由原纤维和天然酸组成,用于促进骨修复
Wentao Yang1,2, Weiyu Ni1,2, Congcong Yu1,2
1Department of Orthopaedic Surgery, Sir Run Run Shaw Hospital School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310016, China.
ACS biomaterials science & engineering
|March 28, 2024
概括
这项研究开发了一种生物模拟骨复合水凝支架 (BBCHS),使用天然的骨部件. BBCHS非常模仿天然的骨,在体内显示出显著的骨再生.
科学领域:
- 生物材料科学 生物材料科学
- 组织工程是组织工程.
- 整形外科的研究研究.
背景情况:
- 自然的骨头是一种复杂的有机-无机复合物 (约. 30%有机,70%无机的酸).
- 开发合成骨移植替代品需要模仿这种组成和结构,以获得最佳的疗效.
研究的目的:
- 使用天然的骨衍生元件,创建一个仿生骨复合水凝支架 (BBCHS).
- 评估BBCHS用于骨修复的物理性质,生物相容性和骨质生成潜力.
主要方法:
- 合成的BBCHS使用30%的原和70%的酸 (HAp) 从天然的骨头通过化.
- 描述了脚手架的物理特性,孔隙性和生物相容性.
- 评估骨再生 in vivo 使用大鼠模型,比较BBCHS与对照组.
主要成果:
- BBCHS成功地模仿了天然骨的有机-无机组成.
- 脚手架的多孔性支持细胞生长 (骨髓介质干细胞) 和物质交换.
- 在体内研究显示,在8周后,与对照组相比,BBCHS组的新骨形成增加了3.4倍.
结论:
- 开发的BBCHS具有出色的生物相容性和骨质生成活性,密切模仿天然骨的结构和组成.
- BBCHS显示出各种骨修复应用的巨大潜力.
- 这种仿生方法为未来的骨再生医学研究和开发提供了一个有希望的战略.
相关概念视频
Bone Remodeling
Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
The Bone Matrix
Bone contains a relatively small number of cells entrenched in a matrix of collagen fibers that provide an adherent surface for inorganic salt crystals. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. Without collagen, bones would be brittle and shatter easily. Without mineral crystals, bones would flex and provide little support. This can be observed by an experiment: when the minerals of a bone are dissolved by soaking the bone in acid or...
Fractures: Bone Repair
Treatment for a fracture is based on the type of break, the bone affected, and the patient's age.
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the procedure...
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the procedure...


