title: Norepinephrine in fetal and neonatal rabbit brain.
abstract: In the first hour after parturition, the newborn rabbit brain norepinephrine content is about 37% less than that of the fetus of 30th or 31st day. Later on, within 2 to 4 h, the norepinephrine level returns to the prenatal value and remains unchanged between 8 to 12 h. This transitory fall of the brain norepinephrine seems to be linked to the stress conditions which occur during parturition.
mesh_terms: D000367:Age Factors; D000818:Animals; D000831:Animals, Newborn; D001923:Brain Chemistry; D005333:Fetus; D005865:Gestational Age; D009638:Norepinephrine / Q000032:analysis*; D011817:Rabbits
chemical_list: D009638:Norepinephrine