We found that the concentration of galectin-9 in the serum was not statistically different before or after delivery in the statistical calculations performed in either the healthy group (7.8 ng/mL before delivery vs. 7.74 ng/mL after delivery) or the GDM group (9.39 ng/mL before delivery vs. 8.4 ng/mL after delivery). Here, LGALS9 is linked to gestational diabetes.