title: Differential displacement of cells from the median eminence into the arcuate nucleus during puberty. Effects of melatonin administration.
abstract: A displacement of catecholaminergic-positive and catalase-containing cells from the median eminence into the arcuate nucleus at puberty has been described previously. This study reports on the displacement phenomena after postnatal administration of melatonin. Catalase-positive cells undergo a delayed displacement from the median eminence into the arcuate nucleus. However, part of this cell population lags behind within the median eminence. This differential reaction of cell displacement by catalase-positive cells is considered as a special reaction of these cells to melatonin administration.
mesh_terms: D000818:Animals; D001111:Arcuate Nucleus of Hypothalamus / Q000166:cytology*; D002374:Catalase / Q000378:metabolism; D005260:Female; D006651:Histocytochemistry; D008473:Median Eminence / Q000166:cytology*; D008550:Melatonin / Q000494:pharmacology*; D051381:Rats; D011919:Rats, Inbred Strains; D012741:Sexual Maturation / Q000187:drug effects*
chemical_list: D002374:Catalase; D008550:Melatonin