隐藏的视网膜结构模式与衰老
Kei Sano1,2, Kota Fukai3, Ryo Terauchi2
1Department of Preventive Medicine, Tokai University School of Medicine, Isehara, Japan.
NPJ digital medicine
|May 3, 2025
概括
光学连贯断层扫描 (OCT) 使用新型原型揭示与年龄相关的视网膜变化. 这些模式,包括斑点的稀薄,可能会增强生物标志物用于与年龄相关的疾病.
科学领域:
- 眼科医生 眼科 眼科
- 老年学是一门学科.
- 生物医学成像技术 生物医学成像技术
背景情况:
- 光学连贯断层扫描 (OCT) 不侵入性地评估视网膜结构.
- 视网膜变薄是诸如阿尔茨海默氏症和帕金森症等全身性疾病的潜在生物标志物.
- 与年龄相关的视网膜变化尚未完全理解,这阻碍了疾病的分化.
研究的目的:
- 开发一种颗粒式方法来评估与年龄相关的视网膜内部空间变化.
- 识别和描述与衰老相关的潜在视网膜原型.
- 探索这些原型作为与年龄有关的疾病的生物标志物的实用性.
主要方法:
- 利用了来自22494个人的189387个OCT扫描的大数据集.
- 从斑点和外皮毛细节图像中开发了36种不同的视网膜原型.
- 分析了原型和参与者的年龄之间的关联,包括近视子组分析.
主要成果:
- 确定了与年龄相关的原型,其特点是斑点变薄 (总或高级).
- 观察到黄斑的质细胞内状层的下层稀释与近视个体的衰老有关.
- 发现与年龄相关的影响,表现为视网膜动脉轨迹形状的变化.
结论:
- 潜在的视网膜原型为了解与年龄相关的视网膜变化提供了详细的方法.
- 这些原型有望改善视网膜生物标志物的使用,用于诊断和监测与年龄相关的疾病.
- 对视网膜原型的进一步研究可以解锁新的诊断和预后能力.
相关概念视频
The Retina
66.2K
The retina is a layer of nervous tissue at the back of the eye that transduces light into neural signals. This process, called phototransduction, is carried out by rod and cone photoreceptor cells in the back of the retina.
66.2K
Anatomy of the Eyeball
5.8K
The eye is a spherical, hollow structure composed of three tissue layers. The outer layer — the fibrous tunic, comprises the sclera — a white structure — and the cornea, which is transparent. The sclera encompasses some of the ocular surface, most of which is not visible. However, the 'white of the eye' is distinctively visible in humans compared to other species. The cornea, a clear covering at the front of the eye, enables light penetration. The eye's middle...
5.8K
Photoreceptors and Visual Pathways
5.4K
At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category,...
5.4K


