相关实验视频
Updated: Jun 25, 2025

05:23
Investigating Migraine-Like Behavior Using Light Aversion in Mice
Published on: August 11, 2021
3.8K
偏头痛眼睛:偏头痛和视网膜之间的相关性
Lunla Udomwech1, Rini Sulastiwaty2, Doungkamol Siriarchawawat3
1Department of Ophthalmology, School of Medicine, Walailak University, Thasala, Nakhonsithammarat, Thailand.
PeerJ
|May 31, 2024
概括
偏头痛患者表现出改变的视网膜层厚度,增加了内核层 (INL) 和减少了脑细胞层 (GCL) 和视网膜神经纤维层 (RNFL) 在头痛侧眼睛中. 这些变化与偏头痛的严重程度相关.
科学领域:
- 眼科医生 眼科 眼科
- 神经学 神经学
- 神经科学是一个神经科学.
背景情况:
- 偏头痛涉及三角血管系统的激活,释放神经递质,可以导致异常血管收缩.
- 眼睛系统的影响,包括潜在的视网膜损伤,与偏头痛引起的血管收缩有关.
- 了解偏头痛中的视网膜层差异对于诊断和管理潜在的眼部并发症至关重要.
研究的目的:
- 调查偏头痛患者和健康对照人群之间的视网膜层厚度差异.
- 评估特定的视网膜层,包括周和黄斑视网膜神经纤维层 (pRNFL和mRNFL),状细胞层 (GCL),内状层 (IPL) 和内核层 (INL).
主要方法:
- 采用了一种病例控制研究设计.
- 招募了38名偏头痛患者和38名年龄和性别匹配的健康对照.
- 使用光学连贯断层扫描 (OCT) 来测量特定视网膜层的厚度.
主要成果:
- 偏头痛患者与对照人群相比,表现出更厚的上部外部内核层 (INL).
- 在偏头痛患者头痛侧眼睛的外细胞层 (GCL) 和上外黄斑视网膜神经纤维层 (mRNFL) 中观察到较小的厚度.
- 头痛侧眼中的INL厚度与偏头痛残疾分数负相关.
结论:
- 偏头痛中INL厚度增加可能与炎症过程有关.
- 在严重的偏头痛病例中,渐进的视网膜神经元损失可能会导致与不那么严重的病例相比,INL变薄.
- 这项研究是首次报告了偏头痛患者头痛侧眼睛中GCL和mRNFL的稀释.
相关概念视频
Anatomy of the Eyeball
7.0K
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...
7.0K
The Retina
68.7K
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.
68.7K
Vision
53.1K
Vision is the result of light being detected and transduced into neural signals by the retina of the eye. This information is then further analyzed and interpreted by the brain. First, light enters the front of the eye and is focused by the cornea and lens onto the retina—a thin sheet of neural tissue lining the back of the eye. Because of refraction through the convex lens of the eye, images are projected onto the retina upside-down and reversed.
53.1K
Photoreceptors and Visual Pathways
6.0K
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,...
6.0K

