Fig. 3. Hierarchical cluster and volcano plots of the differentially expressed proteins.
Fold change (FC) values >2 or <0.5 and a p value <0.05 were set as the filter criteria (A). The vertical dotted line at 0 at the X-axis delimits up- and downregulation. The red and green plots represent significant upregulated and downregulated genes with >2.0-fold change and p value <0.05 in PDR patients (B). Comprehensive interaction networks of the proteins with altered expression based on STRING tools (C). Bioinformatics analysis of the differentially expressed exosome proteins. D Gene Ontology (GO) enrichment analysis of differential proteins. Top 10 items are listed in biological process, cell component and molecular function, respectively based on their statistical significance. E KEGG pathway enrichment analysis of differential proteins. Top 10 items are listed on their statistical significance.