Fig. 2
The normalization of microarray expression profiles and visualization of differentially expressed miRNAs and genes between normal rhythm and AF samples. A, B The normalization of the dataset GSE28954. C, D The normalization of the dataset GSE79768. E, F The volcano plot and heatmap to show differential miRNA expression from GSE28954 with a threshold of false discovery rate (FDR) < 0.05 and |log2 fold-change (FC)| > 0.5. G, H The volcano plot and heatmap to show differential gene expression from GSE79768 with a threshold of FDR < 0.05 and |log2 FC| > 0.5. AF, atrial fibrillation; miRNA, microRNA