临床发现,致病变体和基因疗法资格在Leber先天性麻疹表型谱患者队列中发现
Richard Sather1, Jacie Ihinger1, Michael Simmons1
1Department of Ophthalmology and Visual Neurosciences, University of Minnesota Medical School, Minneapolis, MN 55455, USA.
International journal of molecular sciences
|January 27, 2024
概括
这项研究详细介绍了Leber先天性黄斑病 (LCA) 患者的特征和中西部的遗传变异. 基因检测在大多数患者中发现了变异,有助于了解这种罕见的遗传视网膜疾病.
科学领域:
- 眼科医生 眼科 眼科
- 遗传学 是一个遗传学.
- 医学研究 医学研究
背景情况:
- 勒伯先天性黄斑症 (LCA) 是一种严重的遗传性视网膜疾病 (IRD),导致早期视力丧失.
- 了解LCA的遗传基础和临床表现对于诊断和管理至关重要.
研究的目的:
- 来自中西部的LCA患者队列中的临床特征和遗传变异的特征.
- 在这个患者群体中,将临床发现与遗传检测结果相关联.
主要方法:
- 对34名LCA患者 (33名非综合征患者,1名朱伯特综合征患者) 的回顾性分析.
- 临床评估包括眼相干断层扫描 (OCT), fundus自光 (FAF) 和电网红图 (ERG) 测试.
- 下一代测序 (NGS) 用于遗传变异识别.
主要成果:
- 在85.7%的受试者中观察到先进的光受体损失.
- 典型的FAF发现 (黄斑环或外围低AF) 和异常ERG是常见的.
- 通过NGS,在74.2%的患者中确定了遗传变异.
结论:
- 这项研究提供了对美国中西部LCA遗传景观和临床表型的洞察.
- 基因检测在诊断LCA方面非常有效,有两名患者有资格接受Luxturna®治疗.
- 这些发现支持IRD专家在管理特定遗传变异的LCA患者.
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