["To evaluate the associations of glycemic control and gestational age with ghrelin and proinsulin levels in neonates' umbilical cord blood and mothers' peripheral blood.", 'This is a cross-sectional comparative study of twenty-four pregnant women with gestational diabetes (GD), 18 with type 2 diabetes (T2D), and 36 without diabetes, as well as their neonates. Levels of proinsulin, ghrelin, and glycated hemoglobin (HbA1c) in the maternal and neonatal umbilical cord blood samples.', 'Mothers with GD and T2D had significantly lower ghrelin levels, compared to the normal mothers (p < 0.001). Maternal proinsulin was lower in women with GD than in women without diabetes (p < 0.001). Proinsulin was significantly elevated in the neonates of women with GD and in women with HbA1c ≥6.5% (p <0.001). However, maternal ghrelin levels were higher (p=0.031) and neonate proinsulin levels lower in pre-term births to mothers with GD (p = 0.033). There was a negative correlation between HbA1c levels and birth weight (r = -0.407, p < 0.001).'] Are lower plasma ghrelin levels found in women with diabetes-complicated pregnancies?