细胞外水与全身水的比率预测了REM睡眠行为障碍中的变现:基于生物阻抗的队列研究
Heewon Bae1, Yi-Seul Choo2, Hea Ree Park2
1Department of Neurology, Inje University College of Medicine, Ilsan Paik Hospital, Goyang, South Korea.
Sleep medicine
|December 17, 2025
概括
生物电阻分析 (BIA) 参数,细胞外水与全体水的比率 (ECW/TBW) 和相角 (PhA),可以预测REM睡眠行为障碍 (RBD) 中的现象转换风险. 这些非侵入性标记也反映了α-synucleinopathies中的运动症状严重程度.
科学领域:
- 生物标志物 生物标志物
- 神经退行性疾病 神经退行性疾病
- 身体组成分析 身体成分分析
背景情况:
- 快速眼动睡眠行为障碍 (REM睡眠行为障碍,简称RBD) 是像帕金森病这样的α-synucleinopathies的一个突发症状.
- 使用非侵入性方法预测这些神经退行性疾病的转化是具有挑战性的.
- 目前在RBD中对表转化风险的生物标志物有限.
研究的目的:
- 调查生物电阻分析 (BIA) 的参数,特别是细胞外水与全体水的比率 (ECW/TBW) 和相角 (PhA),是否与RBD患者的现象转换风险相关.
- 评估RBD患者中BIA参数与运动症状严重程度之间的关联.
- 确定BIA在预测神经退行性疾病进展方面的有用性.
主要方法:
- 对147名经过多梦图确认的RBD患者进行了回顾性分析.
- 身体组成的基线BIA测量,包括ECW/TBW和PhA.
- 在24个月的里程碑性访问中,使用UPDRS进行系统的运动症状评估.
- 考克斯和线性回归模型分析表转换预测因素和与运动负担的关联,调整共变量.
主要成果:
- 在平均4.46年的随访期间,共31名患者 (21.1%) 转化为α-synucleinopathy.
- 与非转换者相比,转换者患者的ECW/TBW显著更高,PhA较低.
- 提高ECW/TBW独立预测的转换 (HR6.56,p=0.039). 这是一个非常明显的现象.
- 较高的ECW/TBW和较低的PhA独立地与较大的运动症状严重程度有关 (UPDRS-III).
结论:
- 从BIA衍生出的ECW/TBW和PhA提供了对RBD中的前期神经退行症有价值的见解.
- ECW/TBW是转换风险的预测指标,而ECW/TBW和PhA都反映了运动症状的严重程度.
- 这些非侵入性和可扩展的BIA措施在RBD中显示出风险分层和疾病阶段的前景,需要前性验证.
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