饮食习惯和阿尔茨海默病风险之间的因果关系:一个单变量和多变量门德尔随机化研究
Yi Huang1,2, Mingyue Zhao1,2, Hangyu Shen1,2
1Department of Neurosurgery, Ningbo Key Laboratory of Nervous System and Brain Function, The First Affiliated Hospital of Ningbo University, Ningbo, Zhejiang 315010, China. fyysunjie@nbu.edu.cn.
Food & function
|February 3, 2025
概括
吃加工的肉类,家禽和牛肉与患阿尔茨海默病 (AD) 的风险更高有关. 这项研究使用了门德尔的随机化来探索饮食和AD之间的因果关系,证实了这些饮食联系.
科学领域:
- 神经科学是一个神经科学.
- 营养科学 营养科学
- 遗传学 是一个遗传学.
背景情况:
- 阿尔茨海默病 (AD) 构成了全球重大健康挑战.
- 了解饮食习惯对AD风险的影响对于预防策略至关重要.
研究的目的:
- 调查17种饮食习惯与患阿尔茨海默病的风险之间的潜在因果关系.
- 采用强大的双样本门德尔随机化方法进行因果推理.
主要方法:
- 利用两个样本的门德尔随机化 (MR) 分析与全基因组关联研究 (GWAS) 数据.
- 评估了17种饮食习惯与阿尔茨海默病风险的关联.
- 采用单变量 (UVMR) 和多变量 (MVMR) 门德尔随机化方法,包括反变量加权 (IVW) 和灵敏度分析 (MR-RAPS,MR-Egger).
主要成果:
- 单变的门德尔随机化确定了加工肉 (OR=1.26),家禽 (OR=2.06) 和牛肉 (OR=1.79) 的更高摄入量与阿尔茨海默病风险增加之间的显著关联.
- 敏感性分析始终支持这些积极的关联.
- 多变量孟德尔随机化,调整为抑郁症,也表明加工肉 (OR=1.376) 和家禽 (OR=2.174) 与AD风险的积极关联.
结论:
- 这项研究提供了证据,表明加工肉,家禽和牛肉的消费与阿尔茨海默病风险增加之间存在因果关系.
- 这些发现突出了可能影响阿尔茨海默氏症病变的特定饮食模式.
相关概念视频
Study Designs in Epidemiology
171
Epidemiological study designs are fundamental tools for investigating the distribution, determinants, and control of health conditions in populations. They help researchers understand the relationships between exposures and outcomes, and they broadly fall into two categories: "observational" and "experimental" studies.
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and...
Observational studies are those where the researcher does not intervene but rather observes natural variations. They include cross-sectional, cohort, and...
171
Causality in Epidemiology
271
Causality or causation is a fundamental concept in epidemiology, vital for understanding the relationships between various factors and health outcomes. Despite its importance, there's no single, universally accepted definition of causality within the discipline. Drawing from a systematic review, causality in epidemiology encompasses several definitions, including production, necessary and sufficient, sufficient-component, counterfactual, and probabilistic models. Each has its strengths and...
271
Cause and Effect
10.9K
While variables are sometimes correlated because one does cause the other, it could also be that some other factor, a confounding variable, is actually causing the systematic movement in our variables of interest. For instance, as sales in ice cream increase, so does the overall rate of crime. Is it possible that indulging in your favorite flavor of ice cream could send you on a crime spree? Or, after committing crime do you think you might decide to treat yourself to a cone?
10.9K
Alzheimer's Disease: Overview
437
Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
437
Human Genetics
528
Human genetics provides a profound framework for understanding the interplay between genetic predispositions and human psychology. At the heart of this discipline lies the study of how genes influence physical traits, behaviors, and susceptibility to diseases. Each person carries a unique genetic code that subtly or significantly shapes their psychological and behavioral landscape.
The complex relationship between genetics and psychology is observable through common biological components such...
The complex relationship between genetics and psychology is observable through common biological components such...
528
Criteria for Causality: Bradford Hill Criteria - II
191
The Bradford Hill criteria serve as guidelines for establishing causative links in epidemiological research. Beyond Strength, Consistency, Specificity, and Temporality, key criteria also include Biological Gradient, Plausibility, Coherence, Experiment, and Analogy. These principles assist scientists in assessing the likelihood of causation in complex biological contexts. Below is a summary of these concepts:
191


