使用振动光学连贯弹性图形来描述边缘的生物力学
Ryan Dimmock1, Yilong Zhang2, Gibran F Butt3
1School of Pharmacy and Bioengineering, Keele University, Stoke-on-Trent, UK.
Journal of biophotonics
|September 28, 2024
概括
衰老会增加肢体的刚性,这是眼睛的角膜干细胞来源. 这项研究使用振动光学连贯弹性学量化了肢体利基架构和生物力学中与年龄相关的变化.
科学领域:
- 眼科医生 眼科 眼科
- 生物医学工程 生物医学工程
- 组织力学 组织力学
背景情况:
- 肢体位提供成人上皮干细胞,对于角膜上皮再生至关重要.
- 衰老和疾病改变了肢体的结构和生物力学特性.
- 需要对肢体位属性及其与年龄相关的变化进行非破坏性量化.
研究的目的:
- 在非破坏性和同时量化肢体的架构和生物力学特性.
- 为了研究这些四肢位特征的与年龄相关的变化.
主要方法:
- 使用实验室制造的振动光学连贯弹性图 (OCE) 装置.
- 收集了人类角膜组织 (4-96岁) 的结构图像和深度解析弹性.
- 经过验证的Vogt (POV) 划分的肢体护板与组织学.
主要成果:
- 在OCT图像中成功地划出了Vogt (POV) 的四肢.
- 在空间上绘制POV波纹,同时进行弹性测量.
- 观察到年龄对POV尺寸的显著影响.
- 在65岁以上的个体的肢体中发现显著更高的弹性模量,而在65岁以下的个体中发现更高的弹性模量.
结论:
- 振动OCE可以非破坏性地绘制肢体的架构和弹性.
- 衰老显著影响肢体尺寸,增加组织硬度.
- 这些发现提供了关于角膜干细胞利基中与年龄相关的变化的见解.
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