经过长时间的太空飞行后,用X射线相对照微型CT测试对厚脚的尾椎进行研究
Inna Bukreeva1,2, Victoria I Gulimova3, Yuri S Krivonosov4
1Institute of Nanotechnology, CNR, Rome Unit, Piazzale Aldo Moro 5, 00185 Rome, Italy.
Cells
|October 13, 2023
概括
厚爪 (TG) 在太空飞行后显示出了显著的骨质保存. 然而,微重力造成了心弦隔膜矿化减少和中心间体积增加,这表明了新的监测方法去矿化.
科学领域:
- 太空生物学空间生物学
- 比较生理学比较生理学
- 骨生物学 骨生物学
背景情况:
- 之前的研究表明,在微重力条件下,甲虫骨会抵抗去矿化.
- 在太空飞行研究中,近尾椎和记带区域仍然未被探索.
研究的目的:
- 调查微重力对粗爪 (TG) 的近尾脊椎和笔记带的影响.
- 确定特定的骨部位在太空飞行期间受到非矿化影响最严重.
- 评估心弦隔膜矿化作为微重力诱导的骨质损失的生物标志物的潜力.
主要方法:
- 采用X射线相位对比断层扫描来分析TG样本的非侵入性.
- 皮层和椎骨体积分数量被量化.
- 评估了心节隔膜和中心间体积的矿物化.
主要成果:
- 飞证明了骨质的保存,在飞行后皮质或椎骨体积分数没有显著变化.
- 观察到一个显著下降的心弦隔膜矿物化.
- 在太空飞行后检测到中心间体积的大幅增加.
结论:
- 厚脚在微重力条件下对骨去矿物化的显著抵抗力.
- 记带隔膜的矿物质含量对微重力很敏感,这使得它成为去矿化的潜在指标.
- 测量心弦隔膜化体积为监测微重力下的矿物代谢变化提供了一个有前途的方法.
关键词:
生物-M1的生物体.在X射线相位对比断层扫描中,X射线相位对比断层扫描中心之间的中心 (intercentrae).微观断层图谱 (microtomography) 是一种微观断层图谱.在 notochord 音符中.靠近尾部脊椎的尾部脊椎太空飞行适应器厚脚 (Chondrodactylus turneri,格雷,1864年) 是一个有着厚脚的动物.更多相关视频
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