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成年人体质指数与大脑健康之间的关联:一项为期16年的基于人口的队列和孟德尔随机化研究
1Department of Radiology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050, China.
Health data science
|March 19, 2024
概括
高累积体重指数 (BMI) 对大脑健康产生负面影响,导致大脑体积减少和白质病变增加. 建议45岁以下的成年人保持BMI低于26.2公斤/平方米,以改善大脑衰老.
科学领域:
- 神经科学是一个神经科学.
- 公共卫生 公共卫生
- 老年学是一门学科.
背景情况:
- 累积体重指数 (BMI) 对大脑健康的影响尚未完全理解.
- 澄清超重对不同年龄组大脑健康的影响至关重要.
- 这项研究调查了BMI对大脑健康的神经成像标志物的长期影响.
研究的目的:
- 分析累积BMI与大脑健康的神经成像特征之间的关联.
- 评估累积BMI对大脑结构和完整性的特定年龄的影响.
- 通过遗传分析,探索BMI和大脑健康之间的潜在因果关系.
主要方法:
- 16年来BMI轨迹的纵向建模,以评估累积暴露.
- 收集用于大脑宏观结构,白质超强度 (WMH) 和微观结构的多模式神经成像数据.
- 采用了通用线性模型和双样本孟德尔随机化分析.
主要成果:
- 成年人<45岁的累积BMI>26.2kg/m2与12.0年的加速大脑衰老相关.
- 60岁以上的成年人累积BMI较高,白质过强度体积显著增加 (6.0毫升).
- 基因分析揭示了高BMI与减少灰质体积和改变白质微观结构之间的因果关系.
结论:
- 高累积的BMI与大脑体积减少,白质病变增加和微观结构完整性受损有关.
- 对于45岁以下的成年人来说,保持累积BMI低于26.2公斤/平方米是建议的,以保持大脑健康.
- 研究结果强调了长期体重管理对整个生命周期的认知和神经健康的重要性.
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