FABP4 and fetal growth restriction: Interestingly, a comparison of AGA twins from the IUGR/AGA pregnancies and those from AGA/AGA pregnancies (AGA + AGA) indicated that CEBPA and FABP4 genes were also significantly downregulated in AGA twins from IUGR/AGA gestations (FC = − 2.3 and FC = − 2.1; p < 0.01; respectively).