临床表现 临床表现
Mauricio Silva Teixeira1,2, Anna Maria Gomes2, Hindalis Ballesteros Epifanio2
1Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, Sao Paulo, Brazil.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 25, 2025
概括
致命的家族失眠 (FFI),一种罕见的子疾病,可以模仿患有莱维体 (DLB) 的痴呆症. 基因测试揭示了PRNP基因中的D178N突变,证实了患有渐进性痴呆和睡眠异常的患者的FFI.
科学领域:
- 神经学 神经学
- 遗传学 遗传学 是一个
- 子疾病是子疾病.
背景情况:
- 致命家族失眠 (FFI) 是一种罕见的,自体主导的性疾病.
- 这个案例呈现了FFI最初模仿痴呆症与勒维体 (DLB).
研究的目的:
- 报告一种非典型呈现的FFI病例.
- 强调在疑似有警报信号的DLB病例中进行彻底调查的重要性.
主要方法:
- 一个48岁的男性患有渐进性痴呆和失眠的案例研究.
- 使用了脑部MRI,FDG-PET,TRODAT SPECT,多睡眠学和PRNP基因测序.
- 在PRNP基因中确定了致病性c.532G>A:p (Asp178Asn) 变异.
主要成果:
- 该患者表现出快速进展的痴呆症,认知波动,幻觉,帕金森症和严重的自律障碍.
- 基因分析证实了与FFI相关的PRNP基因中的D178N突变.
- 虽然thalamic低代谢缺席,但在TRODAT SPECT上发现了条纹干涉,与帕金森症相关.
结论:
- FFI可以表现为各种临床表型,包括类似于DLB的表现.
- 迅速进展的痴呆症,睡眠障碍和家族病史需要进一步调查,超越了最初的DLB怀疑.
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