临床表现 临床表现
Hulya Ulugut1, Kyan Younes2, Maxime Bertoux3
1Memory & Aging Center, Department of Neurology, University of California in San Francisco, San Francisco, CA, USA.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 25, 2025
概括
前性痴呆症 (FTD) 与右前叶缩经常出现零星,但具有遗传变异. 这些亚型表现出明显的病理和临床特征,对于定制治疗和临床试验至关重要.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 遗传学 遗传学是一种遗传学.
背景情况:
- 前性痴呆 (FTD) 与右前叶 (RATL) 缩是FTD的一个新兴亚型.
- 国际工作组 (IWG) 的研究结果突出了其独特的临床特征.
- 大规模的多元文化RATL-FTD队列中的遗传和病理因素仍未得到充分研究.
研究的目的:
- 调查FTD与主要RATL缩的遗传和病理基础.
- 分析来自大型多元文化群体的临床,遗传,病理和神经成像数据.
- 为了确定零星与遗传RATL-FTD亚型的独特特征.
主要方法:
- 从13个国家的23个IWG站点对444名RATL-FTD患者的数据进行了回顾性分析.
- 在51%的队列中,对主要的前叶退化 (FTLD) 突变 (MAPT,GRN,C9orf72) 和痴呆症小组进行遗传查.
- 63名患者的病理确认,发现被分类为零星,遗传或异质.
主要成果:
- 81%的查患者有零星的FTD,遗传结果为负.
- 微管相关蛋白tau (MAPT) 突变是最常见的遗传变异 (选的7%).
- 间歇性反应DNA结合蛋白43型C (TDP-C) 病理在零星病例中普遍存在 (60%),而tau-MAPT病理在遗传病例中普遍存在 (38%). 患有TDP-C病理的患者年龄较大,并且更频繁地出现语义缺陷.
结论:
- 带有RATL缩的FTD主要是零星的,但包括一个重要的遗传成分.
- 零星和遗传亚型表现出不同的神经病理和临床特征.
- 精确的临床和分子亚型化对于有针对性的治疗策略和临床试验招生至关重要.
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