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Recent advances in genotyping technology have delivered a wealth of genetic data, which is rapidly advancing our understanding of the underlying genetic architecture of complex diseases. Mendelian Randomization (MR) leverages such genetic…

统计方法学 · 统计学 2023-12-19 Wenhao Cao , Saonli Basu

Brain transcriptomics provides insights into the molecular mechanisms by which the brain coordinates its functions and processes. However, existing multimodal methods for predicting Alzheimer's disease (AD) primarily rely on imaging and…

人工智能 · 计算机科学 2025-04-03 Shan Cong , Zhoujie Fan , Hongwei Liu , Yinghan Zhang , Xin Wang , Haoran Luo , Xiaohui Yao

We approach the problem of combining top-ranking association statistics or P-value from a new perspective which leads to a remarkably simple and powerful method. Statistical methods, such as the Rank Truncated Product (RTP), have been…

统计方法学 · 统计学 2019-06-12 Olga A. Vsevolozhskaya , Fengjiao Hu , Dmitri V. Zaykin

Despite progress in deep learning for Alzheimer's disease (AD) diagnostics, models trained on structural magnetic resonance imaging (sMRI) often do not perform well when applied to new cohorts due to domain shifts from varying scanners,…

计算机视觉与模式识别 · 计算机科学 2026-01-12 Zobia Batool , Diala Lteif , Vijaya B. Kolachalama , Huseyin Ozkan , Erchan Aptoula

The vast majority of connections between complex disease and common genetic variants were identified through meta-analysis, a powerful approach that enables large samples sizes while protecting against common artifacts due to population…

Genome-wide association studies (GWAS) have identified thousands of genetic variants associated with complex traits, and some variants are shown to be associated with multiple complex traits. Genetic covariance between two traits is defined…

统计方法学 · 统计学 2023-10-06 Jianqiao Wang , Sai Li , Hongzhe Li

We present ensemble methods in a machine learning (ML) framework combining predictions from five known motif/binding site exploration algorithms. For a given TF the ensemble starts with position weight matrices (PWM's) for the motif,…

基因组学 · 定量生物学 2018-05-11 Yue Fan , Mark Kon , Charles DeLisi

Reproducibility in genome-wide association studies (GWAS) is crucial for ensuring reliable genomic research outcomes. However, limited access to original genomic datasets (mainly due to privacy concerns) prevents researchers from…

基因组学 · 定量生物学 2024-11-19 Yuzhou Jiang , Erman Ayday

Transcriptome-wide association studies (TWAS) are powerful tools for identifying gene-level associations by integrating genome-wide association studies and gene expression data. However, most TWAS methods focus on linear associations…

统计方法学 · 统计学 2024-12-10 Tianying Wang , Iuliana Ionita-Laza , Ying Wei

Under complete linkage disequilibrium (LD), robust tests often have greater power than Pearson's chi-square test and trend tests for the analysis of case-control genetic association studies. Robust statistics have been used in…

统计方法学 · 统计学 2010-10-26 Gang Zheng , Jungnam Joo , Dmitri Zaykin , Colin Wu , Nancy Geller

Genome-wide association studies (GWAS) have successfully identified over two hundred thousand genotype-trait associations. Yet some challenges remain. First, complex traits are often associated with many single nucleotide polymorphisms…

统计方法学 · 统计学 2023-02-07 Aastha Khatiwada , Ayse Selen Yilmaz , Bethany J. Wolf , Maciej Pietrzak , Dongjun Chung

Linear mixed models (LMM) are widely adopted in genome-wide association studies (GWAS) to account for population stratification and cryptic relatedness. However, the parameter estimation of LMMs imposes substantial computational burdens due…

统计计算 · 统计学 2025-08-08 Zhibin Pu , Shufei Ge , Shijia Wang

Alzheimer's disease (AD) is a progressive neurodegenerative disorder in which pathological changes begin many years before the onset of clinical symptoms, making early detection essential for timely intervention. T1-weighted (T1w) Magnetic…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Jason Qiu

The family-wise error rate (FWER) has been widely used in genome-wide association studies. With the increasing availability of functional genomics data, it is possible to increase the detection power by leveraging these genomic functional…

统计方法学 · 统计学 2020-12-25 Huijuan Zhou , Xianyang Zhang , Jun Chen

Studying phenotype-gene association can uncover mechanism of diseases and develop efficient treatments. In complex disease where multiple phenotypes are available and correlated, analyzing and interpreting associated genes for each…

统计方法学 · 统计学 2021-12-14 Yujia Li , Yusi Fang , Peng Liu , George C. Tseng

The recent focus on microbes in human medicine highlights their potential role in the genetic framework of diseases. To decode the complex interactions among genes, microbes, and diseases, computational predictions of gene-microbe-disease…

机器学习 · 计算机科学 2024-06-28 Kexin Zhang , Feng Huang , Luotao Liu , Zhankun Xiong , Hongyu Zhang , Yuan Quan , Wen Zhang

Population genetics seeks to quantify DNA variant associations with traits or diseases, as well as interactions among variants and with environmental factors. Computing millions of estimates in large cohorts in which small effect sizes are…

Genome-Wide Association Studies are typically conducted using linear models to find genetic variants associated with common diseases. In these studies, association testing is done on a variant-by-variant basis, possibly missing out on…

Genome-wide association studies (GWASs) aim to detect genetic risk factors for complex human diseases by identifying disease-associated single-nucleotide polymorphisms (SNPs). The traditional SNP-wise approach along with multiple testing…

统计方法学 · 统计学 2019-09-25 Yan Xu , Li Xing , Jessica Su , Xuekui Zhang , Weiliang Qiu

Genome-Wide Association Studies (GWAS) help identify genetic variations in people with diseases such as Parkinson's disease (PD), which are less common in those without the disease. Thus, GWAS data can be used to identify genetic variations…

基因组学 · 定量生物学 2023-04-07 Ali Amelia , Lourdes Pena-Castillo , Hamid Usefi