Figure 3. Protein expressions of EPO, p-EPOR, P22, P47 and p-SHP2 in the three groups. (A) Representative protein bands of EPO, p-EPOR, P22, P47 and p-SHP2 in hippocampus of the three groups. (B) Relative protein expressions of EPO, p-EPOR, P22, P47 and p-SHP-2 in hippocampus of the three groups. **P<0.01.