RETN and gestational diabetes: The median concentration of resistin in colostrum samples was 13.33 ng/mL (5.20–87.84 ng/mL) in GDM-G1, 12.81 ng/mL (1.13–96.11 ng/mL) in GDM-G2, and 7.89 ng/mL (1.82–33.14 ng/mL) in the non-GDM group (Figure 1, Table 2).