光生物调节和介质介质干细胞调节用于修复临界尺寸缺陷的实验
Mohammad Bayat1,2, Mehrdad Asgari3, Mohammad-Amin Abdollahifar1
1Department of Biology and Anatomical Sciences, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Lasers in medical science
|June 18, 2024
概括
这项研究表明,将光生物调制 (PBM) 与骨髓骨干细胞调节介质 (BM-MSC-CM) 结合起来,可显著增强骨髓骨质缺陷 (CSFD) 中的骨质疏松性大小的骨再生. 结合疗法改善了骨体积和缺陷愈合.
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.
- 整形外科手术 整形外科手术
背景情况:
- 临界大小的股骨缺陷 (CSFD) 在骨科手术中构成了重大挑战,通常是骨质疏松症,创伤或瘤切除的结果.
- 目前对CSFD的治疗有局限性,需要新的方法来促进骨再生.
研究的目的:
- 调查结合光生物调制 (PBM) 与骨髓骨干细胞调节介质 (BM-MSC-CM) 的疗效,以增强矿化骨架 (MBS) 的骨质生成潜力.
- 评估这种联合治疗对CSFD在卵巢切除诱导的骨质疏松症 (OVX) 鼠标模型中的治疗效果.
主要方法:
- 在OVX大鼠中创建了CSFD,并建立了五个治疗组:对照组,MBS,MBS+CM,MBS+PBM和MBS+CM+PBM.
- 评估包括计算机断层扫描 (CT) 扫描,压缩缩痕测试和植入后12周的组织学/立体学分析.
主要成果:
- 与对照组和其他治疗组相比,MBS+CM+PBM组显示了显著减少的CSFD大小.
- 结合PBM和CM疗法显著增加了新椎骨体积 (NTBV) 和改善了机械性能 (最大力和曲刚性).
- 光生物调节加上条件介质显著加快了骨再生和增强了MBS的骨质生成.
结论:
- 光生物调节和BM-MSC-CM的组合显著促进骨质再生在骨质疏松性大鼠的关键大小的股骨缺陷.
- 这种协同方法有望改善具有挑战性骨缺陷的骨科患者的治疗结果.
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