Distribution of peptide- and catecholamine-containing neurons in the gastro-intestinal tract of rat and guinea-pig: immunohistochemical studies with antisera to substance P, vasoactive intestinal polypeptide, enkephalins, somatostatin, gastrin/cholecystokinin, neurotensin and dopamine beta-hydroxylase.

Animals Cholecystokinin/metabolism Digestive System/innervation Dopamine beta-Hydroxylase/metabolism Endorphins/metabolism Enkephalins/metabolism Fluorescent Antibody Technique Gastrins/metabolism Gastrointestinal Hormones/metabolism Male Neurons/metabolism Neurotensin/metabolism Norepinephrine/metabolism Peptides/metabolism Rats Somatostatin/metabolism Substance P/metabolism Vasoactive Intestinal Peptide/metabolism

Endorphins Enkephalins Gastrins Gastrointestinal Hormones Peptides Substance P Vasoactive Intestinal Peptide Neurotensin Somatostatin Cholecystokinin Dopamine beta-Hydroxylase Norepinephrine