The results of the expression of the Nrf2 signaling pathway proteins relative to GADPH protein in the jejunum of the S. typhimurium C7731 infection model are shown in Figure 7B. In the S. typhimurium C7731 mouse intestinal infection model, upregulated expressions of Nrf2 (p < 0.05), HO-1, and NQO1 were evident in the S group compared with the control group. The gene discussed is HMOX1; the disease is digestive system infectious disorder.