光学缩占主导地位 WFS1 疾病-A 病例对照研究
Nicholas R Levergood1, Melissa W Ko, Katelyn K Payne
1Departments of Ophthalmology (NRL, MWK, DDM), Neurology (MWK, KKP, DDM), Neurosurgery (MWK, DDM), and Medical and Molecular Genetics (KKP), Indiana University School of Medicine, Indianapolis, Indiana.
概括
沃尔夫拉姆综合征1型 (WS1) 在成年人中可能出现较轻的视力丧失和孤立的视力缩. 这项研究强调了弧形视野缺陷作为WS1的关键指标,与其他视力缩综合征不同.
科学领域:
- 眼科医生 眼科 眼科
- 神经遗传学 神经遗传学
- 罕见疾病 罕见疾病
背景情况:
- 沃尔夫拉姆综合征1型 (WS1),也称为DIDMOAD综合征,是一种罕见的神经退行性疾病,由WFS1基因突变引起.
- 在WS1中较轻微表型的孤立成年期视力缩 (OA) 是不常见的,通常与双样性自体递归突变有关.
- 这项研究描述了七名患有 pauci-syndromic WS1 的患者,这些患者呈现成年人开始的OA.
研究的目的:
- 描述一组患有1型沃尔夫拉姆综合征 (WS1) 的患者群体,呈现成年期视力缩 (OA).
- 将WS1患者的视觉功能参数与其他OA主导综合征的视觉功能参数进行比较.
- 扩大对WS1临床谱的理解,以及WFS1突变在视力丧失中的作用.
主要方法:
- 对于OPA1,WFS1,POLG或Leber遗传性视神经病变 (LHON) 和其他遗传原因的突变二次性OA患者的回顾性审查.
- 排除患有视力丧失或OA非遗传原因的混杂原因的患者.
- 分析自动视野 (AVF),光学连贯断层扫描 (OCT) 的状细胞综合体 (GCC) 和周状视网膜神经纤维层 (RNFL),和视觉敏度 (logMAR).
主要成果:
- 与其他OA综合征相比,WS1患者的症状发作和表现延迟显著.
- WS1患者更有可能呈现弧形阴影瘤,而不是LHON和OPA1突变,这些突变通常呈现中央阴影瘤或盲点扩大.
- WS1诊断与特定的RNFL或GCC稀释模式没有显著的关联,而ADOA显示出最常见的RNFL稀释.
结论:
- WS1队列表现出较轻微的视力丧失和较少的综合征特征,这表明与WFS1突变相关的替代性,较轻微的表型.
- 弧形视野缺陷和倾向于上/下周毛囊RNFL稀释的趋势是WS1患者的显著关联.
- 临床医生应考虑沃尔夫拉姆综合征在成人发病,对称,近隔离的OA,特别是弧形场缺陷.
相关概念视频
Glaucoma: Overview
1.2K
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
1.2K
Photoreceptors and Visual Pathways
8.6K
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,...
8.6K
Prosopagnosia
666
Prosopagnosia, also known as face blindness, is the inability to recognize faces. In severe cases, individuals with prosopagnosia may not recognize close family members, including parents and spouses, by their faces. For instance, someone with prosopagnosia might walk past their child in a crowd, only realizing their mistake upon noticing their child's distinctive backpack or favorite jacket. Prosopagnosia specifically impairs facial recognition, while the recognition of other objects or...
666
Open Angle Glaucoma: Treatment
928
In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Drugs such as carbonic anhydrase inhibitors, α2- and...
928


