HINN prioritizes multi-omics biomarkers associated with cognitive decline

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ID: 331641
2026
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Abstract
Abstract Motivation Integrating multi-omics data for disease prediction remains challenging due to the complexity of cross-layer biological interactions and the limited use of prior biological knowledge in many machine learning models. We present the Hierarchical Input Neural Network (HINN), a deep learning framework that incorporates biologically informed connections across genomic, epigenetic, and transcriptomic layers to model regulatory relationships in a structured and interpretable manner. HINN was applied to blood-derived multi-omics data to predict cognitive assessment scores, including MMSE, MoCA, ADAS11, and RAVLT.Immediate. A biologically guided feature construction pipeline was used to integrate GWAS-derived SNPs, promoter-region DNA methylation, and gene expression data through Gene Ontology Biological Process (GO-BP) and KEGG pathway mappings. Results The model was evaluated using a rigorous training strategy that separates feature selection from testing and incorporates cross-validation as well as repeated runs to ensure robustness. Across all cognitive outcomes, HINN achieved the lowest mean normalized MSE among the evaluated models, with statistically significant improvements over most baseline methods. Ablation analyses showed that the contributions of individual omics modalities and biologically informed connectivity varied across cognitive outcomes, with the clearest benefits of structured connectivity observed for ADAS11 and MMSE. Feature attribution analysis identified a multi-omics cascade involving SNP (rs116557230), CpG site (cg24041822), and a SOCS4 gene expression probe, which showed consistent associations with multiple cognitive outcomes. These findings highlight the ability of HINN to uncover biologically meaningful cross-omics relationships relevant to cognitive decline. Together, this work demonstrates that integrating deep learning with biological knowledge enables biomarker discovery for complex diseases. Availability and Implementation All code, sample data, and instructions are publicly available via GitHub (https://github.com/bozdaglab/HINN) and archived on Zenodo (https://doi.org/10.5281/zenodo.19197057) to ensure reproducibility and long-term accessibility. Supplementary Information Supplementary data are available at Bioinformatics online.
Reference Key
openalex_W7220840327 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Yashu Vashishath, Shirley Beaver, Fahad Saeed, Serdar Bozdag, for the Alzheimer's Disease Neuroimaging Initiative
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Journal BMC Bioinformatics
Year 2026
DOI
10.1093/bioinformatics/btag741
URL
https://doi.org/10.1093/bioinformatics/btag741
Keywords Keywords not found

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