title: Melatonin may be synthesised in enterochromaffin cells.
mesh_terms: D000818:Animals; D001001:Anura; D001065:Appendix; D002838:Chromaffin System / Q000378:metabolism*; D002855:Chromatography, Thin Layer; D004759:Enterochromaffin Cells / Q000378:metabolism*; D006801:Humans; D007413:Intestinal Mucosa / Q000032:analysis; D008547:Melanophores / Q000187:drug effects; D008550:Melatonin / Q000096:biosynthesis* / Q000494:pharmacology; D012867:Skin / Q000187:drug effects; D014020:Tissue Extracts / Q000494:pharmacology
chemical_list: D014020:Tissue Extracts; D008550:Melatonin