Altered mTOR/p70S6K (A) and dopamine/BDNF/CDK5 (B) signaling pathways in the hippocampus on PND65 of FID rats. BDNF, brain-derived neurotrophic factor; CDK5, cyclin-dependent kinase 5; FID, formerly iron deficient; mTOR, mechanistic target of rapamycin; PND, postnatal day. A list of definitions of gene and protein names used in this figure is included in Supplemental Material.