通过声化学修改的生物活性玻璃改善了卵巢切除的老鼠的围部植入骨修复
Marcelly Braga Gomes1, Nathália Dantas Duarte2,3, Gabriel Mulinari-Santos1
1Department of Basic Sciences, School of Dentistry (FOA-UNESP), São Paulo State University "Júlio de Mesquita Filho", Araçatuba 16015-050, SP, Brazil.
Biomimetics (Basel, Switzerland)
|December 24, 2025
概括
化学修饰的生物活性玻璃在雌激素缺乏的老鼠中增强了骨愈合,改善了植入物稳定性和骨结构. 这种方法在改善受损骨环境中的周围植入物修复方面显示出希望.
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.
- 骨生物学 骨生物学
背景情况:
- 雌激素缺乏,骨质疏松症的原因,损害骨矿物质密度和周围植入物愈合.
- 声化学提供颗粒减少,以增强受损骨的再生结果.
- 在雌激素缺乏模型中,声化学对骨形成的影响尚不清楚.
研究的目的:
- 评估用于改善卵巢切除小鼠周植入物修复的超化学修饰生物材料.
- 评估超声波在雌激素缺乏状态下对骨再生和植入物稳定性的影响.
主要方法:
- 50只经过卵巢切除的老鼠获得了骨周植入器缺陷.
- 这些组包括血凝块 (CLOT),Biogran® (BGN),超声波的Biogran® (BGS),Bio-Oss® (BON) 和超声波的Bio-Oss® (BOS).
- 植入后28天的分析包括移除扭矩,微计算机断层扫描 (微CT) 和共聚焦显微镜.
主要成果:
- 经过化学修饰的Biogran® (BGS) 显示出最高的移除扭矩 (6.28Ncm).
- 微型CT显示,与其他组相比,CLOT (8.07%) 和BOS (6.47%) 的骨体积分 (BV/TV) 较高,BGS显示6.02%.
- 与BGN (0.69 mm-1) 相比,BGS显著增加了轨道状细胞数 (Tb.N) (1.11 mm-1).
结论:
- 经化学修饰的生物活性玻璃显著改善了雌激素缺乏骨的机械稳定性和状微观架构.
- 这种修改可以在受损骨条件下增强周围植入物修复.
- 需要进一步的研究来优化超声波参数和评估翻译适用性.
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