ангиотензин (((1-7) 在实验动物模型中减弱了牙的运动,并调节了在正牙力施加期间的膜骨响应
Hatem Abuohashish1, Suliman Shahin2, Abdulaziz Alamri2
1Department of Biomedical Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441, Dammam, Saudi Arabia. habuohashish@iau.edu.sa.
Progress in orthodontics
|October 15, 2023
概括
激活Ang{1-7) / Mas受体轴会减缓正牙牙移动,并通过调节骨改造基因来保存膜骨结构. 阻断这一轴会破坏原和骨细胞活动.
科学领域:
- 内分泌学 在内分泌学.
- 矯正牙科 矯正牙科是一種矯正牙科.
- 骨生物学 骨生物学
背景情况:
- 氨酸- ангиотензин系统,特别是ACE2 / Ang1-7) / Mas受体轴,影响骨反应.
- ангиотензин-(1-7) (Ang(1-7)) 在膜骨代谢和重塑中发挥作用.
- 这项研究研究了Ang{1-7) /Mas受体轴对正牙牙移动 (OTM) 和膜骨适应机械负荷的影响.
研究的目的:
- 评估Ang{1-7) /Mas受体轴对OTM的影响.
- 评估轴在机械应力下膜骨重塑中的作用.
- 确定Ang(1-7) 和Mas受体阻塞对牙运动和骨结构的影响.
主要方法:
- 威斯塔尔大鼠使用卷轴弹进行OTM,输注Ang(1-7) 或Ang(1-7) 加上Mas受体对抗剂 (A779).
- 分析了牙的运动,移动性和膜骨形态学 (微型CT,组织学,原染色) 在5天和14天.
- 骨形成,重塑和血管性标记物的基因表达被评估在压力和张力部位.
主要成果:
- Ang(1-7) 输液在14天后显著抑制了牙的移动和可移动性.
- Ang(1-7) 保持了膜骨的形态学和组织学完整性,而A779.7则扭转了这一效应.
- Ang(1-7) 调节了与骨相关的基因,抑制了骨质细胞生成,并增强了骨质细胞活性.
结论:
- 激活Ang{1-7) /Mas受体轴可以抑制OTM.
- 这个轴对于调节机械力应对气膜骨重塑的关键作用.
- 准Ang{1-7) /Mas受体轴可能为牙矯正提供新的策略.
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