CD34 and diabetes mellitus: Compared with the control group, the proportion of INS-positive area in the diabetes model group decreased significantly (from 0.7243 ± 0.0131 to 0.1258 ± 0.0102) (Figure 4B), whereas the proportion of CD34-positive area increased significantly (from 0.1375 ± 0.00923 to 0.5364 ± 0.0266) (Figure 4C).