与ADAMTSL4相关的眼部疾病的表型和基因型特征
Katie M Williams1,2,3, Wolfgang Berger4,5,6, Samuel Koller4
1Department of Ophthalmology, Sight and Sound Centre, Great Ormond Street Hospital, London, UK.
Clinical genetics
|November 17, 2025
概括
在ADAMTSL4的病原性变体导致长眼外皮症,经常在幼儿时代呈现高近视. 基因检测对于早期诊断这种疾病至关重要.
科学领域:
- 眼科医生 眼科 眼科
- 遗传学 遗传学 是一个
- 医学科学 医学科学 医学科学
背景情况:
- 在ADAMTSL4的致病变体是孤立的ectopia lentis的一个重要原因.
- 基因确诊病例在全球范围内不断增加,需要更好地了解相关的眼部特征.
研究的目的:
- 在患有ADAMTSL4相关眼病的个体中划分眼睛表型和基因型谱.
- 描述与ADAMTSL4相关疾病相关的临床表现和遗传变异.
主要方法:
- 在六个欧洲第三级推中心进行了一项回顾性多中心研究.
- 来自32个家庭的41个个体收集了表型和基因型数据,其中32个家庭确认了ADAMTSL4致病变体.
主要成果:
- 队列呈现了早期诊断 (中位数为1.3年) 和高近视 (平均SE -10.27 D).
- 在三分之一的病例中发生了Ectopia lentis et pupillae,下部脱和缺席的区域是常见的. 一种特定的20-bp删除 (c.767_786del) 非常普遍.
- 与ADAMTSL4相关的疾病比FBN1.1.等其他带有ectopia lentis的病因更早出现,并且近视性更高.
结论:
- ADAMTSL4致病变体导致一种独特的眼睛表型,其特点是早期发病,高近视和外眼近视.
- 早期识别特征特征和基因测试对于准确的诊断和管理至关重要,可能避免不必要的调查.
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