AFP and fetal growth restriction: IUGR negatively affected the expression of several proteins involved in transport of nutrients, including alpha-fetoprotein precursor (AFP, Spot F223, F189), potassium voltage-gated channel subfamily H, member 7 (KCNH, Spot F219), albumin (ALB, Spot F118), albumin precursor (ALB, F110), and apolipoprotein A-I (APOA1, Spot F196, F254) (p < 0.01).