title: Increased brain activity of methylene reductase during early development.
mesh_terms: D000375:Aging; D000429:Alcohol Oxidoreductases / Q000378:metabolism*; D000818:Animals; D000831:Animals, Newborn; D001921:Brain / Q000201:enzymology* / Q000254:growth & development; D005260:Female; D005333:Fetus; D007774:Lactation; D008297:Male; D011247:Pregnancy; D051381:Rats; D013763:Tetrahydrofolates
chemical_list: D013763:Tetrahydrofolates; D000429:Alcohol Oxidoreductases