ArticleResearch in heart yield and translational medicine2026
Systems-Level in Silico Bioinformatic Profiling Identifies Key Hub Genes and Potential Therapeutic Targets in Atrial Fibrillation without Overt Comorbidity.
Article in Research in heart yield and translational medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Highlights: Systems-level bioinformatics delineates the molecular architecture of AF without overt comorbidity.Network analysis reveals a highly interconnected ion-channel-centered interactome.DMNC topology prioritizes 10 mechanistically relevant hub genes governing atrial electrophysiology.Sodium and potassium channel modulators emerge as dominant drivers of arrhythmogenic susceptibility.These findings establish a molecular framework for precision stratification in isolated AF. Background: Atrial fibrillation (AF) is the most common sustained cardiac arrhythmia and is associated with substantial morbidity and mortality. AF occurring in individuals without structural heart disease or conventional risk factors, currently referred to as AF without overt comorbidity, remains poorly understood. Genetic susceptibility is thought to contribute, but the underlying molecular mechanisms are incompletely defined. This study aimed to identify key genes and biological processes associated with AF without overt comorbidity using an in-silico bioinformatics approach. Methods: Genes associated with AF without overt comorbidity were retrieved from the GeneCards database using a knowledge-based, database-driven strategy. Functional enrichment analysis of Gene Ontology biological processes was performed using WebGestalt. Protein-protein interaction (PPI) analysis was conducted using STRING and visualized in Cytoscape. Hub genes were identified exclusively using the Density of Maximum Neighborhood Component (DMNC) algorithm via the CytoHubba plugin. Three-dimensional protein structures of selected hub genes were modeled using SWISS-MODEL and evaluated using PROCHECK for exploratory structural characterization. Results: Eighty-one genes associated with AF without overt comorbidity were identified. PPI analysis demonstrated significant interaction enrichment (P<1.0×10 Conclusion: This in silico study identifies candidate genes and biological processes potentially involved in AF without overt comorbidity. The findings are hypothesis generating and warrant further functional and clinical validation.
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