PECAM1 and diabetes mellitus: Flow cytometry using CD31 and EMCN gates corroborated these trends: the fraction of type‐H ECs was lowest with DM+A (0.11 ± 0.01; P < 0.0001 vs DM) and increased with DM+I (0.73 ± 0.01; P < 0.0001) and DM+NAC (0.35 ± 0.01 versus 0.27 ± 0.01 in DM; P < 0.0001) (Figure 5H,I).