Biomaterial Database

Effect of motilin on the sphincter of Oddi in the dog. 1981

T Neya, and M Mizutani, and M Takaki, and S Nakayama

To investigate the action of motilin on the sphincter of Oddi, the flow rate of the perfusate (FRP) discharged into the duodenal lumen through the orifice of the common bile duct was measured by means of an electric drop counter in decerebrated dogs. Motilin in doses above 0.5 micrograms/kg i.v. reduced or stopped the FRP. The fifty percent recovery time of FRP was 20 min and full recovery time was 30 min. The reduction of FRP induced by motilin was unaffected by denervation and atropinization. These results suggest that motilin caused an increase in tone of the sphincter of Oddi by acting on the sphincter muscle.

UI	MeSH Term	Description	Entries
D009037	Motilin	A peptide of about 22-amino acids isolated from the DUODENUM. At low pH it inhibits gastric motor activity, whereas at high pH it has a stimulating effect.
D009803	Sphincter of Oddi	The sphincter of the hepatopancreatic ampulla within the duodenal papilla. The COMMON BILE DUCT and main pancreatic duct pass through this sphincter.	Oddi's Sphincter,Oddi Sphincter,Oddis Sphincter,Sphincter, Oddi's
D003135	Common Bile Duct	The largest bile duct. It is formed by the junction of the CYSTIC DUCT and the COMMON HEPATIC DUCT.	Choledochus,Bile Duct, Common,Common Bile Ducts,Duct, Common Bile
D004285	Dogs	The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)	Canis familiaris,Dog
D004386	Duodenum	The shortest and widest portion of the SMALL INTESTINE adjacent to the PYLORUS of the STOMACH. It is named for having the length equal to about the width of 12 fingers.	Duodenums
D005768	Gastrointestinal Hormones	HORMONES secreted by the gastrointestinal mucosa that affect the timing or the quality of secretion of digestive enzymes, and regulate the motor activity of the digestive system organs.	Enteric Hormone,Enteric Hormones,Gastrointestinal Hormone,Intestinal Hormone,Intestinal Hormones,Hormone, Enteric,Hormone, Gastrointestinal,Hormone, Intestinal,Hormones, Enteric,Hormones, Gastrointestinal,Hormones, Intestinal
D005769	Gastrointestinal Motility	The motor activity of the GASTROINTESTINAL TRACT.	Intestinal Motility,Gastrointestinal Motilities,Intestinal Motilities,Motilities, Gastrointestinal,Motilities, Intestinal,Motility, Gastrointestinal,Motility, Intestinal
D000818	Animals	Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA.	Animal,Metazoa,Animalia
D014670	Ampulla of Vater	A dilation of the duodenal papilla that is the opening of the juncture of the COMMON BILE DUCT and the MAIN PANCREATIC DUCT, also known as the hepatopancreatic ampulla.	Duodenal Papilla, Major,Vater's Ampulla,Greater Duodenal Papilla,Hepatopancreatic Ampulla,Ampulla, Hepatopancreatic,Ampulla, Vater's,Ampullas, Hepatopancreatic,Duodenal Papilla, Greater,Duodenal Papillas, Greater,Greater Duodenal Papillas,Hepatopancreatic Ampullas,Major Duodenal Papilla,Vater Ampulla,Vaters Ampulla