title: The cellular origin of motilin in the gastrointestinal tract.
abstract: The semithin-thin technique applied to serial resin-embedded sections, using sequential immunocytochemistry, conventional electron microscopy and silver staining, indicates that a population of enterochromaffin cells in the intestine contain, and therefore presumably synthesize and secrete, the 22-amino acid residue peptide motilin.
mesh_terms: D000818:Animals; D002838:Chromaffin System / Q000502:physiology*; D004386:Duodenum; D004759:Enterochromaffin Cells / Q000378:metabolism / Q000502:physiology* / Q000648:ultrastructure; D005455:Fluorescent Antibody Technique; D005768:Gastrointestinal Hormones / Q000378:metabolism*; D007413:Intestinal Mucosa / Q000166:cytology / Q000378:metabolism*; D007583:Jejunum; D008854:Microscopy, Electron; D009037:Motilin / Q000096:biosynthesis / Q000378:metabolism*; D013194:Staining and Labeling; D013552:Swine
chemical_list: D005768:Gastrointestinal Hormones; D009037:Motilin