Figure 3. The levels of nAChR α7 (A), α4 (B) and β2 (C) subunit proteins in the hippocampus and cortex of db/db and db/m mouse brains as determined by Western blotting. The values presented as percentage of the control by relative quantification are mean ± SEM (n=8 for each group). **p<0.01 as compared to db/m mice determined by the two-tailed unpaired Student’s t test. Representative Western blots are displayed in the upper left corner of the figure.