The KEGG pathway of the differentially expressed genes was as follows (Fig. 3D): PI3K-Akt signaling pathway, DNA replication, p53 signaling pathway, purine metabolism, pyrimidine metabolism, oocyte meiosis, HTLV-I infection, viral myocarditis, steroid biosynthesis, and progesterone-mediated oocyte maturation. The gene discussed is TP53; the disease is viral myocarditis.