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阿克罗马托普西亚通过全外体测序在ATF6中显示复合异构基因突变:一个罕见的病例报告
Journal of pediatric ophthalmology and strabismus
|September 25, 2023
概括
这项研究确定了ATF6基因中的致病变体是造成色素的原因,这是一种罕见的遗传疾病,影响光受体功能和白天视力.
科学领域:
- 眼科医生 眼科 眼科
- 遗传学 是一个遗传学.
- 分子生物学分子生物学
背景情况:
- 阿克罗马托普西亚是一种罕见的遗传性疾病,影响形光受体,对于白天光线和高敏度视觉至关重要.
- 由于其稀有性,阿克罗马托普西亚的遗传基础和病原性仍然不太清楚.
研究的目的:
- 在患者呈现特征性症状时,调查Achromatopsia的遗传原因.
- 用先进的基因测序和眼部检查技术进行诊断.
主要方法:
- 临床诊断结合眼睛检查, fundus 摄影和光素血管学.
- 整体外基因组测序 (WES) 用于识别患者及其父母的遗传变异.
- 桑格测序以确认已识别的ATF6变体.
主要成果:
- 一个1岁的女孩呈现出缺席的叶反射,严重的光恐惧症和色素斑点.
- 在ATF6基因中,WES发现了两种致病变体 (c.533C>A和c.82+1G>T).
- 这些ATF6变种根据ACMG指南被归类为致病性.
结论:
- 该研究在患者身上诊断出了染色,并将其归因于ATF6基因中的病原性变异.
- 这一发现有助于理解亚克罗马托普西亚背后的遗传机制.
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