In GDM Control Group, E, NE, HOMA-IR were positively correlated with MDA (r = 0.249, 0.242, 0.663, 0.313, all p < 0.01), other indicators were not significantly correlated with MDA (p > 0.05); HbA1c was negatively correlated with SOD (r = −0.154, p < 0.05), E and Cortisol were showed a significant negative correlation (r = −0.200, −0.158, p < 0.01, <0.05) and NE showed a positive correlation with SOD (r = 0.517, p < 0.01; Table 6). The gene discussed is SOD1; the disease is gestational diabetes.