一种新型的止损增益NF1变体在神经纤维素瘤类型1和双边光学缩没有光学质瘤
Naoko Fukunaga1, Takaaki Hayashi1,2, Yuki Yamada2
1Department of Ophthalmology, Katsushika Medical Center, The Jikei University School of Medicine, Tokyo, Japan.
Ophthalmic genetics
|August 21, 2023
概括
在患有双边视力缩的患者中发现了一种新型神经纤维素瘤1型 (NF1) 基因变异,尽管没有光通路质瘤. 这一发现表明NF1基因突变与视神经损伤之间存在潜在的新联系.
科学领域:
- 遗传学 遗传学 是一个
- 眼科医生 眼科 眼科
- 神经学 神经学
背景情况:
- 神经纤维素瘤类型1 (NF1) 是一种影响皮肤和周围神经系统的遗传性疾病.
- 在NF1患者中,已知存在眼部并发症,如Lisch结节和视通路质瘤 (OPG).
- 双边视力缩是NF1.1的一个不常见的表现.
研究的目的:
- 在双边视力缩的患者中报告一种新的NF1变异.
- 在没有OPG的NF1患者中调查视力缩的遗传基础.
主要方法:
- 眼科检查包括眼镜镜和光学连贯性断层扫描 (OCT).
- 使用NF1基因的目标下一代测序 (NGS) 进行遗传分析.
- 在OPA1和线粒体DNA中排除致病变体.
主要成果:
- 一名患有NF1的14岁女性呈现出视力敏度下降和双侧光盘白.
- 经过测试,OCT证实了视网膜神经纤维层的显著稀薄.
- 向的NGS在NF1基因中发现了一种新型异质合体停止增益变体 (p.Tyr628Ter).
- 在OPA1或线粒体DNA中没有发现致病变体.
结论:
- 一名患有NF1和双边视力缩的患者,没有OPG,被发现携带了一种新的NF1基因变异.
- 这种NF1变体与视力缩的发展之间的直接关系需要进一步研究.
- 这一案例突出了NF1基因突变的潜在,以前未被识别的眼睛表现.
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