The top 10 pathways, including Cocaine addiction, serotonergic synapse, non-alcoholic fatty liver disease, dopaminergic synapse, CAMP signaling pathway, Alzheimer’s disease (AD), prion disease, neuroactive ligand-receptor interaction, pathways of neurodegeneration-multiple diseases, and pathways in cancer based on -log10 (p-value) and number of genes, are chosen and represented in Figure 5A. The gene discussed is CAMP; the disease is Alzheimer disease.