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长期临床观察KIF1A异合变体患者

Aritomo Kawashima¹, Kaori Kodama¹, Yukimune Okubo¹

¹Department of Pediatric Neurology, Miyagi Children's Hospital, Sendai, Japan.

American journal of medical genetics. Part A

|May 17, 2024

概括

这项研究追踪了几十年来异合的KIF1A变体 (KRDs). 早期症状包括发育迟缓和步态问题,晚些时候的进展显示性,神经病变和视力丧失.

科学领域:

神经学神经学
遗传学遗传学是一个
临床研究临床研究

背景情况:

与KIF1A相关的疾病 (KRDs) 存在由于衰退和主导变异的不同表型.
最近的研究突出显示了异合体KIF1A变体的扩展表型.
对这些患者的长期观察数据仍然有限.

研究的目的:

为了研究异合体KIF1A变体患者的长期临床进展和特征.
为了识别早期和晚发症状以及相关的神经生理学发现.

主要方法:

六名被诊断患有性和异性KIF1A变体的患者的回顾性图表审查.
分析患者特征,临床症状,电生理学和神经成像数据.
平均随访时间为30年 (范围:4-44年).

主要成果:

早期的症状包括发育迟缓和独立行走时的步态异常 (马匹的步态,不稳定的步态).
后来的进展包括性,轴突神经病变和视力敏度降低.
神经成像显示与年龄相关的小脑缩和光学辐射强度过高 (T2WI/FLAIR).

结论:

异构体KIF1A变异导致一种进展性神经退行性疾病,临床表现不同.
早期识别步态问题和发育迟缓至关重要.
需要进一步的研究,以确定基因型-表型对象对KIF1A相关疾病的相关性.

关键词:

KIF1A 如果1A 小脑缩的缩小光学辐射的光学辐射.周围神经病变 (Peripheral Neuropathy) 是一种神经病变.性残症是一种性残症.

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