The results of the insulin tolerance test (ITT) showed that the release of blood glucose in the T2DM group was at a higher level after intraperitoneal injection of recombinant human insulin, and AUC analysis indicated that the ITT change curve was extremely significantly different between the T2DM group and the control group (p < 0.001) (Figure 1(b)). The gene discussed is INS; the disease is type 2 diabetes mellitus.