在孤立的REM睡眠行为障碍中,纵向网络变化和表转换风险
Chris C Tang1, Yoshikazu Nakano1, An Vo1,2
1Center for Neurosciences, The Feinstein Institutes for Medical Research, Manhasset, NY, USA.
Nature communications
|December 31, 2024
概括
患有REM睡眠行为障碍的人在帕金森病症状出现前几年就会出现渐进的网络变化. 网络进展率可以预测疾病发病,有助于临床试验.
科学领域:
- 神经科学是一个神经科学.
- 神经学 神经学
- 医疗成像医学成像
背景情况:
- 孤立REM睡眠行为障碍 (RBD) 是α-synucleinopathies的一个早期迹象.
- 了解RBD神经变化的进展对于早期干预至关重要.
研究的目的:
- 纵向评估RBD患者的代谢网络变化和多巴胺基输入.
- 为了将基线网络表达与帕金森病或勒维体痴呆症的表现转换与时间相关联.
主要方法:
- 在一项为期4年的纵向研究中,对13名患有RBD的男性受试者进行了正子发射断层扫描 (PET) 成像.
- 分析的重点是与帕金森病相关的运动和认知代谢网络以及尾状/状的多巴胺基输入.
- 一个独立的验证样本被用来将基线网络表达与转换时间相关联.
主要成果:
- 在4年内,与帕金森病相关的网络表达增加,而多巴胺基输入减少.
- 随着时间的推移,网络内部和网络之间出现了异常的功能连接,影响了信息流.
- 基线网络表达与验证样本中代转换的时间相反相关.
结论:
- 在RBD患者中,网络进展表明临床诊断前几年脑功能受损.
- 网络进展率是α-synucleinopathies疾病修饰试验的潜在结果指标.
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