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皮肤活检作为英国ATTRv粉样神经病变的诊断工具
Luke F O'Donnell1, Victor Zhang1, Roy Carganillo1
1Centre for Neuromuscular Diseases, Department of Neuromuscular Diseases, UCL Queen Square Institute of Neurology, London, UK.
Journal of the peripheral nervous system : JPNS
|June 28, 2025
概括
皮肤活检有助于诊断带有多神经病变 (ATTRv-PN) 的跨甲基氨基化症,可及时进行基因沉默疗法. 这种微创方法对于英国患者的早期干预至关重要.
科学领域:
- 神经学 神经学
- 遗传学 是一个遗传学.
- 病理学 病理学 病理学
背景情况:
- 基因沉默疗法已经改变了ATTRv治疗.
- 皮肤活检可以通过评估粉样蛋白和神经纤维密度来早期诊断ATTRv-PN.
- 早期诊断是有效开始治疗的关键.
研究的目的:
- 评估皮肤活检在英国患者的ATTRv-PN诊断中的有用性.
- 评估皮肤活检如何影响获得基因沉默疗法.
- 确定英国常见的TTR变体和临床表现.
主要方法:
- 在2021年7月至2023年10月期间,73名患者接受了皮肤活检.
- 活检被染色为粉样蛋白,并通过免疫组织化学类型.
- 分析了皮内神经纤维密度 (IENFD).
主要成果:
- 常见的变体包括Thr60Ala (30%),Val122Ile (23%) 和Val30Met (22%).
- 78%的人显示神经生理正常/不明确.
- 40%的人有异常的IENFD,33%的粉样蛋白阳性,16%的两者都有. 33%的人开始基因沉默疗法.
结论:
- 皮肤活检是ATTRv-PN诊断的一个有价值的,最少侵入性的工具.
- 它为大量患者促进了基因沉默治疗的启动.
- 早期的ATTRv-PN诊断至关重要,特别是在英国常见的变种和心肌病呈现方面.
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