生物标志物 生物标志物
Anna Brugulat-Serrat1, Clara Gallay1,2, Gonzalo Sánchez-Benavides1,3,4
1Barcelonaβeta Brain Research Center (BBRC), Pasqual Maragall Foundation, Barcelona, Spain.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
概括
晚期生育与患有临床前阿尔茨海默病 (AD) 的女性的记忆力下降速度更快有关. 这种关联在男性中没有观察到,这表明与怀孕相关的因素可能会影响女性的认知衰老.
科学领域:
- 神经科学是一个神经科学.
- 生殖生物学 生殖生物学
- 老年学是一门学科.
背景情况:
- 零偶数和多偶数与痴呆风险有关,但证据尚不确定.
- 研究第一个分娩时的年龄和认知变化之间的联系对于了解痴呆症风险因素至关重要.
研究的目的:
- 探索阿尔茨海默病 (AD) 风险的认知不受损 (CU) 个体的第一个分娩年龄和认知变化之间的关联.
- 检查性别,粉样β (Aβ) 状态和第一次分娩时的年龄如何相互作用以影响认知轨迹.
主要方法:
- 从ALFA+队列中分析了319个CU个体,第一次分娩时的年龄被连续和二分法定义 (<29 vs ≥29岁).
- 使用PACC和特定领域复合物评估了3年的认知变化,多变量回归模型对关键共变量进行了调整.
- 模拟了性别,第一次分娩年龄和Aβ阳性 (CSF Aβ42/40比率) 的相互作用,对女性进行了分层分析.
主要成果:
- 女人有他们的第一个孩子比男人年轻. 性与第一次分娩的年龄和Aβ状态相互作用,以预测记忆变化.
- 与同一年龄组的Aβ阳性 (Aβ+) 妇女相比,在29岁或以上的第一次分娩时,Aβ阳性 (Aβ+) 妇女的记忆力下降率比同年龄组的Aβ-妇女高52.4%.
- 在女性中没有发现社会经济因素的显著调解,而第一次分娩时的父亲年龄与男性的认知变化无关.
结论:
- 晚期生育 (≥29岁) 与临床前阿尔茨海默病 (Aβ+/CU) 妇女的加速记忆衰退有关.
- 研究结果表明,怀孕史,AD病理和认知衰老之间存在复杂的相互作用,特别是在女性中.
- 与怀孕相关的生物或荷尔蒙因素可能导致女性观察到的相关性,需要进一步调查.
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