The areas of the fornix and fimbria (Fornix: Sham vs. Mild p = 0.927, Sham vs. Moderate p = 0.919; Fimbria: Sham vs. Mild p = 0.061, Sham vs. Moderate p = 0.136) and Olig2+ cell counts in the fimbria (Sham vs. Mild p = 0.835, Sham vs. Moderate p = 0.211) were unaffected in both IUGR groups. The gene discussed is OLIG2; the disease is fetal growth restriction.