步行时间和对阿尔茨海默病的遗传倾向:来自HELIAD研究的结果
Stefanos N Sampatakakis1, Niki Mourtzi1, Sokratis Charisis2
11st Department of Neurology, Aiginition Hospital, National and Kapodistrian University of Athens Medical School, Athens, Greece.
The Clinical neuropsychologist
|May 14, 2024
概括
身体状况,以步行时间 (WT) 来衡量,改变了阿尔茨海默病 (AD) 遗传风险和AD发病率之间的联系. 缓慢的步行速度放大了与老年人患阿尔茨海默病的高遗传倾向相关的风险.
科学领域:
- 神经科学是一个神经科学.
- 老年学是一门学科.
- 遗传学 是一个遗传学.
背景情况:
- 阿尔茨海默病 (AD) 构成了重大的公共卫生挑战,特别是在老年人群中.
- 了解改变遗传倾向和AD发病率之间的关系的因素对于预防策略至关重要.
研究的目的:
- 调查身体状况,特别是步行时间 (WT),是否会影响阿尔茨海默病 (AD) 遗传倾向和AD发病率之间的关联.
- 为了确定WT是否在遗传风险-AD发病率关系中起到修饰作用.
主要方法:
- 利用了来自HELIAD纵向研究的561名社区老年人 (≥64岁) 的数据.
- 通过基线行走时间 (WT) 和使用多基因AD风险评分 (PRS-AD) 的遗传倾向来评估身体状况.
- 采用了考克斯的比例危险模型,通过WT和PRS-AD进行分层分析来研究相互作用.
主要成果:
- 较慢的WT和较高的PRS-AD都独立地与AD发病率的增加有关.
- 在WT缓慢的参与者中,较高的PRS-AD与AD风险增加2.5倍相关 (p=0.047).
- 在快速WT组或通过PRS-AD分层时没有发现显著的相互作用.
结论:
- 身体状况,以缓慢的步行时间来表示,显著改变了遗传倾向对老年人阿尔茨海默病发病率的影响.
- 较慢的体力表现可能会加剧遗传敏感个体的阿尔茨海默病风险.
更多相关视频
04:41Mapping Alzheimer's Disease Variants to Their Target Genes Using Computational Analysis of Chromatin Configuration
Published on: January 9, 2020
19.0K
06:23The 4 Mountains Test: A Short Test of Spatial Memory with High Sensitivity for the Diagnosis of Pre-dementia Alzheimer's Disease
Published on: October 13, 2016
32.3K
相关概念视频
Human Genetics
561
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...
561
Alzheimer's Disease: Overview
467
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...
467
Genome-wide Association Studies-GWAS
13.3K
Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
GWAS does not require the identification of the target gene involved in...
GWAS does not require the identification of the target gene involved in...
13.3K
Genetic Lingo
102.7K
Overview
102.7K
Heritability
198
Heritability is a statistical concept that measures the degree to which genetic differences among individuals contribute to trait variations within a population. It is a fundamental idea in genetics, often prone to misinterpretation. Heritability is expressed as a percentage, reflecting the proportion of variation in a specific trait across a population that can be linked to genetic differences. However, it's important to understand that heritability does not determine how "genetic"...
198
Alzheimer's Disease: Treatment
181
Alzheimer's Disease (AD), a neurodegenerative disorder, is pathologically identified by amyloid plaques and neurofibrillary tangles composed of tau protein. AD pharmacotherapy aims to manage cognitive symptoms, delay disease progression, and treat behavioral symptoms. The treatment is primarily symptomatic and palliative, with no definitive disease-modifying therapy available. Cholinesterase inhibitors, including donepezil (Aricept), rivastigmine (Exelon), and galantamine (Razadyne), are...
181
