通过关节组织综合分析识别阿尔茨海默病的高度可靠的风险基因
Yong Heng Wang1,2, Pan Pan Luo1, Ao Yi Geng1
1Department of Bioinformatics, School of Basic Medical Sciences, Chongqing Medical University, Chongqing, China.
Frontiers in aging neuroscience
|July 7, 2023
概括
这项研究使用一种新型的全转录组关联研究 (TWAS) 方法确定了36个可靠的阿尔茨海默病 (AD) 基因. 这些发现为AD病原和潜在的早期诊断生物标志物提供了新的见解.
科学领域:
- 遗传学 是一个遗传学.
- 神经科学是一个神经科学.
- 生物信息学是一种生物信息学.
背景情况:
- 全基因组关联研究 (GWAS) 确定了许多阿尔茨海默病 (AD) 遗传变异.
- 强联系不平衡 (LD) 使得从GWAS数据中识别因果变异变得复杂.
- 全转录组关联研究 (TWAS) 使用表达量化特征位置 (eQTL) 数据将基因表达与特征联系起来.
研究的目的:
- 为了识别与阿尔茨海默病 (AD) 相关的新型基因.
- 克服传统GWAS在确定因果变异方面的局限性.
- 为早期AD诊断提供潜在的生物标志物.
主要方法:
- 应用TWAS理论使用改进的关节组织推算 (JTI) 方法与门德尔随机化 (MR) 框架 (MR-JTI) 结合.
- 综合的LD得分,GTEx eQTL数据,以及大型队列GWAS总结统计.
- 利用了415个已识别的AD相关基因的费舍尔测试,与来自11个AD数据集的2873个差异表达基因相对应.
主要成果:
- 通过MR-JTI方法确定了415个与AD相关的基因.
- 过以获得36个高度可靠的AD相关基因,包括APOC1,CR1,ERBB2和RIN3.3.
- 基因丰富分析将这些基因与抗原处理,粉样β形成,陶结合和氧化应激反应联系起来.
结论:
- 该研究成功地使用MR-JTI方法确定了36个可靠的AD相关基因.
- 这些基因为阿尔茨海默氏病的复杂病理发生提供了新的见解.
- 这些已识别的基因代表了早期诊断AD的潜在生物标志物.
更多相关视频
04:22Author Spotlight: Exploring Sex-Specific Glial Signatures and Therapeutic Leads for Alzheimer's Disease
Published on: May 20, 2024
899
09:38Generalized Psychophysiological Interaction PPI Analysis of Memory Related Connectivity in Individuals at Genetic Risk for Alzheimer's Disease
Published on: November 14, 2017
15.0K
相关概念视频
01:26Alzheimer's Disease: Overview
527
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...
527
01:11Genome-wide Association Studies-GWAS
13.6K
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...
13.6K
01:22Alzheimer's Disease: Treatment
220
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...
220