Fig. 1
From: microRNA-9 might be a novel protective factor for osteoarthritis patients
The protein-protein interaction (PPI) network for upregulated differentially expressed genes (DEGs) (a) and downregulated DEGs (b). Red nodes indicate upregulated DEGs, green nodes indicate downregulated DEGs, and the black lines indicate the interactions. The node is larger, and it degree is higher, suggesting that it has more interactions with other proteins in PPI network