认知状态和人口统计学改变了主观认知和粉样蛋白之间的关联
Corey J Bolton1,2, Omair A Khan1,3, Dandan Liu1,3
1Vanderbilt Memory and Alzheimer's Center, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
Annals of clinical and translational neurology
|October 23, 2024
概括
主观认知衰退 (SCD) 与大脑中粉样蛋白积累的增加有关,这是阿尔茨海默病 (AD) 的早期迹象. 这种关联在男性和受过高等教育的人群中更强烈,这表明SCD可以检测早期的AD变化.
科学领域:
- 神经学 神经学
- 神经科学是一个神经科学.
- 生物标志物 生物标志物
背景情况:
- 主观认知衰退 (SCD) 是一种自我报告的经历,即思考和记忆能力恶化或下降.
- 阿尔茨海默病 (AD) 是一种进展性神经退行性疾病,其特点是大脑的特定病理变化,包括粉样蛋白积累.
- 了解非痴呆个体中SCD和AD生物标志物之间的关系对于早期检测和干预至关重要.
研究的目的:
- 在非痴呆老年人中调查主观认知衰退 (SCD) 和阿尔茨海默病 (AD) 生物标志物之间的关联.
- 检查认知状态,教育和性别如何改变SCD和AD生物标志物之间的关系.
主要方法:
- 来自范德比尔特记忆和衰老项目的129名没有痴呆症或中风的参与者接受了腰部穿刺以分析脑脊液 (CSF).
- 测量了AD的CSF生物标志物,包括粉样蛋白,蛋白和神经丝光 (NFL).
- 线性回归模型用于评估SCD和CSFAD生物标志物之间的关联,并对认知状态,性别和教育进行相互作用分析.
主要成果:
- 较高的SCD得分与粉样化症的增加显著相关 (p < 0.004).
- 在SCD和tau,p-tau或NFL水平之间没有发现显著的关联 (p > 0.38).
- SCD与amyloidosis的认知状态 (p < 0.02),性别 (p = 0.03) 和教育 (p < 0.005) 相互作用,在认知不受损的个人,男性和接受高等教育的人群中观察到更强烈的关联.
结论:
- 主观认知衰退 (SCD) 与大脑粉样蛋白积累有关,这是阿尔茨海默病 (AD) 的早期病理标志.
- SCD可能是检测早期AD相关的大脑变化的有用指标,特别是在认知不受损的个人,男性和那些有高等教育的人中.
- 这些发现强调了在解释SCD作为早期AD病理学的潜在标志物时考虑认知状态,性别和教育的重要性.
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