Figure 1. Differentially expressed genes analyzed in the GSE20347, GSE17351 and private datasets. (A) Flow chart of the data analysis in this study. (B) Venn diagrams of the DEGs from the GSE20347, GSE17351 and private datasets. (C) Heatmap of 64 DEGs from the private dataset. (D) Visual PPI network of 64 DEGs from Cytoscape. Upregulated genes are marked in red; downregulated genes are marked in blue. (E) Fourteen hub genes screened by a degree > 4.