斯蒂克勒综合征1型早期的眼部表现 由于COL2A1框架转移变异
Faisal Al-Qahtani1, Motazz A Alarfaj2, Abdulelah Al-Abdullah3
1Vitreoretinal Division, King Khaled Eye Specialist Hospital and Research Center, Riyadh, Saudi Arabia.
The American journal of case reports
|February 20, 2026
概括
史蒂克勒综合征是一种结缔组织疾病,可能是由新的COL2A1基因变异引起的. 通过分子检测进行早期诊断对于管理视网膜脱落等眼部并发症至关重要.
科学领域:
- 遗传学 是一个遗传学.
- 眼科医生 眼科 眼科
- 结合组织疾病 结合组织疾病
背景情况:
- 斯蒂克勒综合征是一种影响连接组织的遗传性疾病,其特征是面异常,近视和视力丧失.
- COL2A1基因突变是1型斯蒂克勒综合征的最常见原因,通常导致严重的眼睛问题.
- 迅速识别斯蒂克勒综合征对于有效的管理和遗传咨询至关重要.
研究的目的:
- 在一个患有斯蒂克勒综合征的儿科患者中发现了一种新型的COL2A1框架转移变异.
- 为了突出这一特定突变与早期发病,眼部占主导地位的症状之间的关联.
- 强调基因检测在诊断和咨询患有原蛋白病变的家庭中的重要性.
主要方法:
- 进行了临床外体序列测序,以确定遗传原因.
- 桑格测序和分离分析证实了鉴定变种的致病性.
- 进行了全面的眼科评估,包括视敏度, fundus摄影和光学连贯性断层扫描.
主要成果:
- 发现了一种新型的异合体COL2A1变体 (c.3642delT,p.Gly1215Alafs*12).
- 患者出现了由于风湿性视网膜脱落而导致的突然视力丧失,需要进行手术.
- 经过修复手术后,患者的视力敏度显著改善,表明成功管理.
结论:
- 鉴定到的 COL2A1 变种代表了斯蒂克勒综合征1型的新原因.
- 这种截断突变可能与观察到的早期发病和以眼部为重点的呈现有关.
- 分子测试对于准确的诊断,管理和儿科原病的遗传咨询至关重要.
相关概念视频
Genetic Lingo
84.7K
Overview
84.7K
Glaucoma: Overview
1.7K
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...
1.7K
Open Angle Glaucoma: Treatment
1.1K
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...
1.1K
Angle Closure Glaucoma: Treatment
1.6K
Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
1.6K
Photoreceptors and Visual Pathways
8.5K
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,...
8.5K
Point and Frameshift Mutations
1.8K
Point mutations are genetic alterations involving the change of a single nucleotide base pair in DNA. Depending on how the alteration affects protein synthesis, they can lead to various consequences.Point mutations fall into the following types:Silent mutations occur when a nucleotide change does not alter the amino acid sequence due to the redundancy of the genetic code. For instance, changing ACC to ACA still encodes threonine, leaving the protein function unaffected. This occurs because...
1.8K


