SERPINB1 and gestational diabetes: As illustrated in Figure 1, the increased serum levels of AFM (97.44 ± 42.83 vs. 78.62 ± 36.32 mg/L, t = 2.579, P=0.011) and SERPINB1 (12.16 ± 5.02 vs. 6.37 ± 2.89 ng/mL, t = 7.707, P < 0.001) in GDM patients as compared with non-GDM women.