Furthermore, KEGG analysis indicated that dysregulated mRNAs were associated with the NOD-like receptor signalling pathway, human T-cell leukaemia virus 1 infection, NF-κB signalling pathway, TNF signalling pathway, IL-17 signalling pathway, Toll-like receptor signalling pathway, Th17 cell differentiation, relaxin signalling pathway, B cell receptor signalling pathway, phagosome, osteoclast differentiation, hepatitis B, and C-type lectin receptor signalling pathway (Figure 4(d)). The gene discussed is IL17A; the disease is hepatitis B virus infection.