To verify the RNA-seq results, eight genes among DEGs were randomly selected to validate their expression in the NBW and IUGR experimental groups (n = 3), namely FOSB, IGF2, EPSTI1, SLC7A1, UCP2, THBS1, ITGA1, and ITGA8 using RT-qPCR analysis. The gene discussed is UCP2; the disease is fetal growth restriction.