对自我报告的长时间睡眠,短时间睡眠,失眠和认知功能的孟德尔随机化研究
1Ageing Epidemiology Research Unit, School of Public Health, Imperial College London, London, United Kingdom.
PloS one
|August 20, 2025
概括
睡眠时间短缺和失眠与认知能力下降和阿尔茨海默病风险有关. 需要进一步研究长时间睡眠对认知功能的因果关系.
科学领域:
- 神经科学
- 遗传学
- 流行病学
背景情况:
- 睡眠时间与认知功能之间的关系尚未完全理解.
- 孟德尔随机化 (MR) 是研究暴露与结果之间的因果关系的宝贵工具.
- 之前的研究对睡眠时间和认知能力提出了不确定的结果.
研究的目的:
- 通过两样MR分析,研究自我报告的短睡眠时间,失眠和长睡眠时间与认知功能之间的因果关系.
- 评估睡眠模式对认知能力,流体智力,记忆力和阿尔茨海默病风险的潜在因果关系.
主要方法:
- 使用两个样本的孟德尔随机化 (MR) 方法.
- 从欧洲祖先群体的全基因组关联研究 (GWAS) 中提取了短睡眠时间 (26个SNP),失眠时间 (240个SNP) 和长睡眠时间 (7个SNP) 的遗传仪器变量.
- 采用逆方差加权 (IVW) 方法作为主要分析,支持MR-Egger回归和加权中位数估计方法,并对强度进行敏感性分析.
主要成果:
- 睡眠时间短暂与认知表现差 (β = -0.15,P = 0.02),流体智力下降 (β = -0.38,P = 0.006),记忆力受损 (β = -0.10,P = 0.04) 以及对Trail Making Test表现的负面影响 (P = 0.03和P = 0.04) 有关.
- 失眠与阿尔茨海默病的风险增加有因果关系 (OR=1.13,P=0.02).
- 长时间睡眠的有限SNP排除了关于其对认知结果的因果关系的强有力的结论.
结论:
- 睡眠时间短暂与认知能力下降有关.
- 失眠与欧洲血统的人患阿尔茨海默病的风险增加有关.
- 需要进一步的研究,以确定长时间睡眠与认知功能之间的因果关系,并对预防认知衰退的潜在公共卫生影响.
更多相关视频
04:33Author Spotlight: Unveiling the Connection Between Sleep Disorders and Cognitive Symptoms in Depression
Published on: April 26, 2024
790
06:23A Chronic Sleep Fragmentation Model using Vibrating Orbital Rotor to Induce Cognitive Deficit and Anxiety-Like Behavior in Young Wild-Type Mice
Published on: September 22, 2020
5.5K
相关概念视频
Substance Use Disorders Affecting Sleep
216
Substance use disorders involve a pattern of using drugs more extensively than intended and continuing use despite harmful consequences. This includes legal substances like alcohol and nicotine, as well as illegal drugs. These disorders often involve both physical and psychological dependence, reflecting compulsive use of substances that significantly alter thoughts, feelings, and behaviors, contributing to a major public health issue.
Understanding the concepts of physical dependence,...
Understanding the concepts of physical dependence,...
216
Insufficient Sleep and Sleep Deprivation
210
Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
Sleep deprivation is a more severe form of sleep loss...
Sleep deprivation is a more severe form of sleep loss...
210
Management of Insomnia
319
The sleep cycle, an integral part of human health, consists of several stages with distinct characteristics and functions. It begins with a transition from wakefulness to sleep, known as the light sleep phase, followed by the restorative deep sleep phase, essential for physical recovery and growth. The cycle concludes with the Rapid Eye Movement (REM) phase, characterized by high brain activity and vivid dreaming. Insomnia, a prevalent sleep disorder, involves difficulty falling asleep, staying...
319
Blind Procedures
12.1K
Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which...
12.1K
Insomnia
123
Insomnia is a prevalent sleep disorder characterized by difficulty falling asleep, frequent awakenings during the night, and waking up too early without being able to return to sleep. People with insomnia often experience these disruptions at least three nights a week for at least one month. Chronic insomnia, which lasts for at least three months, can lead to increased anxiety, which in turn can worsen sleep difficulties, creating a cycle of sleeplessness and stress.
Multiple factors contribute...
Multiple factors contribute...
123
Understanding Sleep
500
Sleep, an essential biological state, involves significant reductions in physical activity, sensory awareness, and interaction with the environment. This complex physiological process is primarily regulated by specific brain regions, notably the hypothalamus and pons, which govern the sleep-wake cycle or circadian rhythm.
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
The circadian rhythm, a nearly 24-hour cycle, is deeply influenced by environmental light cues. Light exposure directly affects the hypothalamus, which in turn regulates...
500
