Compared with that in the rats in the CON group, the mRNA level of Nos1 (nNOS) (Figure 9(a)) and ChAT (Figure 9(b)) in the rats in the DM group decreased (P < 0.01), and EA increased the mRNA level of Nos1 and ChAT in T2DM rats (P < 0.01). This evidence concerns the gene NOS1 and type 2 diabetes mellitus.