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BHMnet: Bayesian high-dimensional mediation analysis with network information integration for correlated mediators
Journal article   Open access   Peer reviewed

BHMnet: Bayesian high-dimensional mediation analysis with network information integration for correlated mediators

Yunju Im and Yuan Huang
Briefings in bioinformatics, Vol.27(1), bbaf734
01/07/2026
DOI: 10.1093/bib/bbaf734
PMCID: PMC12814977
PMID: 41554050
url
https://doi.org/10.1093/bib/bbaf734View
Published (Version of record) Open Access

Abstract

We consider identifying a small yet meaningful set of active mediators from a high-dimensional pool of potential mediators, commonly derived from "-omics" or imaging data. In these contexts, mediators are often correlated or exist network structures, which present unique opportunities to improve efficacy by using this valuable information. To this aim, we develop a Bayesian method that accommodates both high dimensionality and correlations among the mediators. Our approach flexibly learns the interconnection between the mediators while improving estimation accuracy by incorporating external knowledge about these relationships. Simulation studies demonstrate the effectiveness of the proposed method compared with alternative approaches. The analysis of the environmental toxicity data provides new insights into the intermediate effects of molecular-level traits.
Algorithms Bayes Theorem Computational Biology - methods Computer Simulation Humans

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