Our results show that the key target genes are mainly in Pathways of neurodegeneration‐multiple diseases, Leishmaniasis Peroxisome, IL‐17 signaling pathway, Amyotrophic lateral sclerosis, Non‐alcoholic fatty liver disease, Kaposi sarcoma‐associated herpesvirus infection, Lipid and atherosclerosis, Chemical carcinogenesis‐reactive oxygen species, Human cytomegalovirus infection. The gene discussed is IL17A; the disease is leishmaniasis.