title: Maze training alters brain weights and cortical RDA/DNA ratios.
mesh_terms: D000375:Aging; D000818:Animals; D002540:Cerebral Cortex / Q000378:metabolism*; D004247:DNA / Q000096:biosynthesis*; D004193:Discrimination Learning / Q000502:physiology*; D008297:Male; D009929:Organ Size; D010364:Pattern Recognition, Visual / Q000502:physiology; D011610:Psychosocial Deprivation; D012313:RNA / Q000096:biosynthesis*; D051381:Rats; D012931:Social Environment; D012934:Social Isolation
chemical_list: D012313:RNA; D004247:DNA