NOS3 and gestational diabetes: Figure 4C present a statistically significant difference in eNOS in the group with GDM + PE compared to GDM (p < 0.05). The measured superoxide anion radical is increased many times in both the GDM (p < 0.05) and GDM + PE (p < 0.05) groups compared to healthy pregnant women (Figure 4D). There is no statistically significant difference between GDM and GDM + PE (p < 0.00).