释放和的生物活性玻璃作为一种新的骨替代品
T Kondo1,2, K Otake1, H Kakinuma2
1Division of Molecular & Regenerative Prosthodontics, Tohoku University Graduate School of Dentistry, Sendai, Japan.
Journal of dental research
|April 6, 2024
概括
新的释放和的生物活性眼镜显示了骨再生的增强. 与传统的生物玻璃45S5.5相比,这些基于酸盐的新型眼镜具有更好的骨质生成和抗炎性质.
科学领域:
- 生物材料科学 生物材料科学
- 材料化学 材料化学
- 再生医学是一种再生医学.
背景情况:
- 生物玻璃45S5是一种基于二氧化的生物材料,促进矿化,但引起炎症,并且对骨移植有有限的降解.
- 以酸盐为基础的玻璃提供更高的溶解度和离子释放,具有用于兴奋剂治疗金属氧化物的合成灵活性.
研究的目的:
- 制造新的和化物合基生物活性玻璃 (MP和4%的Al-MP),以改进Bioglass 45S5的骨再生.
- 评估开发的眼镜的稳定性,离子释放,骨质生成潜力,抗炎作用和骨再生能力.
主要方法:
- 制造多元组合酸盐 (MP) 生物活性玻璃,添加和化物,以及进一步的氧化 (4% Al-MP玻璃).
- 评估玻璃溶解,离子释放 (Zn,F),颗粒大小和水中的稳定性.
- 在实验室中评估小鼠骨髓衍生中介细胞干细胞和巨细胞两极分化 (M1/M2) 的骨质生成.
- 在活体中评估小鼠骨缺陷模型中的骨再生.
主要成果:
- MP玻璃显示和化物离子释放量增加.
- 4%的Al-MP玻璃表现出抑制溶解,增强在水中的稳定性和减少颗粒大小,促进丰富的离子释放.
- 4%的Al-MP玻璃显著增强了骨质生成,并促进了M2抗炎性巨细胞两极分化.
- 在体内,4%的Al-MP玻璃比Bioglass 45S5.5促进了明显更大的骨再生.
结论:
- 成功开发出释放和的生物活性眼镜,具有改善的骨质生成和抗炎性质.
- 4%的Al-MP玻璃在骨再生应用中表现出比Bioglass 45S5更高的性能.
- 这些新型眼镜代表了有希望的生物材料,可以改善骨的修复和再生.
相关概念视频
Essential Minerals for Bone Health
3.9K
The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
3.9K
Bone Remodeling
38.3K
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.
38.3K


