生物标志物 生物标志物
Rejina Roufegarinejad1, Joseph Cummings2, Charisse N Winston3
1University of San Diego, San Diego, CA, USA.
Alzheimer's & dementia : the journal of the Alzheimer's Association
|December 24, 2025
概括
代谢健康的超重/肥胖 (MHO) 黑人男性可能有阿尔茨海默氏病 (AD) 风险降低. 需要进一步的研究来证实MHO个体中的这些发现,重点是认知变化和生物标志物.
科学领域:
- 神经科学是一个神经科学.
- 老年学是指老年学的学科.
- 公共卫生 公共卫生
背景情况:
- 代谢和血管因素显著影响阿尔茨海默病 (AD) 风险,特别是在代谢不健康,超重/肥胖 (MUO) 个体中.
- 阿尔茨海默病 (AD) 风险与代谢健康,超重/肥胖 (MHO) 状态之间的关联尚未得到充分理解.
- 标准身体质量指数 (BMI) 衡量健康风险评估的指标显示种族和种族群体的变化,特别是黑人或非裔美国人.
研究的目的:
- 研究黑人或非裔美国人体质指数 (BMI) /代谢概况与阿尔茨海默病 (AD) 风险之间的关系.
- 探索代谢不健康 (MUO) 和代谢健康 (MHO) 个人资料以及黑人人口中神经退行和AD风险的生物标志物之间的相关性.
- 解决当前BMI标准在评估不同种族群体健康风险方面的局限性.
主要方法:
- 利用阿尔茨海默病神经成像计划 (ADNI) 队列的基线数据的多重线性回归模型.
- 分析了MUO和MHO黑人个体的BMI和代谢概况.
- 与神经退行和AD风险的生物标志物相关联,包括血生物标志物,大脑粉样β (Aβ) 负载和海马体积.
主要成果:
- 在所有黑人参与者之间没有观察到BMI和认知状态的显著基线差异.
- 初步分析表明,与MHO黑人女性相比,MHO黑人男性的BMI和认知状态之间存在非显著的正相关性,这表明AD风险可能降低.
- 多变量线性回归模型将进一步探索MUO和MHO配置文件与关键AD生物标志物和神经成像数据的横截面关联.
结论:
- 降低阿尔茨海默病 (AD) 风险可能与黑人男性的MHO状态有关.
- 长度研究是必要的,以调查MHO个体的认知状态,Aβ和tau脑病理以及血生物标志物的变化.
- 需要进一步的研究,以充分阐明不同人群中代谢健康,肥胖和AD风险之间的复杂相互作用.
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