临床表现 临床表现
Javier Oltra1, Ingrid Ekström1, Maria Larsson2
1Aging Research Center, Department of Neurobiology, Care Sciences and Society, Karolinska Institutet and Stockholm University, Stockholm, Stockholm, Sweden.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 26, 2025
概括
嗅觉功能障碍 (OD) 和认知障碍 (CI) 组合显著增加痴呆风险,特别是在前六年. 隔离的OD还可以预测随着时间的推移痴呆的风险,这表明它作为早期诊断标记物的潜力.
科学领域:
- 神经学 神经学
- 老年学是一门学科.
- 生物标志物 生物标志物
背景情况:
- 嗅觉和认知标记在痴呆症风险分层方面表现有前途.
- 研究嗅觉功能障碍 (OD) 和认知障碍 (CI) 对痴呆发病率的综合和孤立影响.
研究的目的:
- 为了检查隔离和组合的OD和CI与12年来发生的痴呆症的关联.
- 评估这种关联是否在两个时间框架内有所变化:0-6年和6-12年.
主要方法:
- 来自SNAC-K研究的2406名老年人被评估了气味识别和认知功能.
- 考克斯回归分析估计了孤立的OD,孤立的CI和联合CIND+OD的痴呆风险.
- 拉普拉斯回归评估每组内5%的痴呆症诊断时间.
主要成果:
- 在CIND+OD组合中,痴呆的风险最高 (HR 11.38),特别是在前6年内对遗忘性CIND (HR 22.23) 的风险最高.
- 孤立的OD与12年期间的痴呆风险增加有关 (HR 2.12).
- 孤立的CIND仅在前6年增加了痴呆症风险 (HR 3.38).
结论:
- 同时的认知障碍和嗅觉功能障碍可能表明痴呆症的开始,特别是在amnestic个体.
- 嗅觉功能障碍是痴呆症的潜在独立早期标志物.
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