Figure 1. Genes related to the mechanism of PPX treatment of PD. (A) Number of genes that are concerned solely with PD or AD and with both diseases selected from DiGSeE. (B) 16 genes were related to both PD and AD. (C) SNCA was directly downregulated by PPX according to STITCH. (D) The protein-protein interactions (PPI) of apoptotic-related genes with SNCA.