title: Neuropeptide Y in the guinea-pig biliary tract.
abstract: High concentrations of neuropeptide Y (NPY) have been demonstrated in the gall bladder (16.7 +/- 5.4 pmol/g), cystic duct (25.4 +/- 9.2 pmol/g) and common bile duct (54.7 +/- 11.5 pmol/g) of the guinea-pig using a recently developed radioimmunoassay. Immunoreactive NPY containing nerves were demonstrated in all layers of the biliary tree using immunocytochemistry, being particularly dense in the myenteric and mucosal plexuses.
mesh_terms: D000818:Animals; D001659:Biliary Tract / Q000378:metabolism*; D005260:Female; D005704:Gallbladder / Q000378:metabolism; D006168:Guinea Pigs; D008297:Male; D009419:Nerve Tissue Proteins / Q000378:metabolism*; D009478:Neuropeptide Y; D011863:Radioimmunoassay; D013564:Sympathetic Nervous System / Q000378:metabolism
chemical_list: D009419:Nerve Tissue Proteins; D009478:Neuropeptide Y