Fig. 4
From: Analyses of lncRNA and mRNA profiles in recurrent atrial fibrillation after catheter ablation
Interaction network and hub gene network. A Protein‒protein interaction network. Among the 57 DEGs, 15 were confirmed to have mutual regulatory relationships. Red indicates upregulation, and blue indicates downregulation. The size of the nodes is related to the number of connections; the larger the number of connections is, the larger the size of the node. B Hub gene network. The PPI network graph was simplified using the degree algorithm to identify hub genes. Eight genes (IGF2, FGFR1, MMP9, HSPG2, GZMB, PEG10, GNLY, and COL6A1) were identified as the top candidates. The colors of the nodes in the graph indicate different levels of importance, ranging from yellow to red