Inhibitory effect of aprotinin on gastric acid secretion. 1984

K D Jørgensen, and B Diamant

Aprotinin was found to inhibit the amplitude of electrically stimulated contractions of the isolated guinea pig ileum with an ID50 of 6.75 X 10(-6) M. Aprotinin inhibited pentagastrin-stimulated gastric acid secretion in the rat, cat, and pig after oral or intraventricular administration. No inhibition of gastric acid secretion was seen after intravenous infusion of aprotinin. When segments of antrum, duodenum, and ileum were incubated in vitro with increasing concentrations of aprotinin, increasing amounts of somatostatin were released from the organs. It is suggested that aprotinin's effects, which are similar to those of somatostatin, may be due to a local release of somatostatin from the D-cells in the gastrointestinal tract.

UI MeSH Term Description Entries
D007082 Ileum The distal and narrowest portion of the SMALL INTESTINE, between the JEJUNUM and the ILEOCECAL VALVE of the LARGE INTESTINE.
D007611 Aprotinin A single-chain polypeptide derived from bovine tissues consisting of 58 amino-acid residues. It is an inhibitor of proteolytic enzymes including CHYMOTRYPSIN; KALLIKREIN; PLASMIN; and TRYPSIN. It is used in the treatment of HEMORRHAGE associated with raised plasma concentrations of plasmin. It is also used to reduce blood loss and transfusion requirements in patients at high risk of major blood loss during and following open heart surgery with EXTRACORPOREAL CIRCULATION. (Reynolds JEF(Ed): Martindale: The Extra Pharmacopoeia (electronic version). Micromedex, Inc, Englewood, CO, 1995) BPTI, Basic Pancreatic Trypsin Inhibitor,Basic Pancreatic Trypsin Inhibitor,Bovine Kunitz Pancreatic Trypsin Inhibitor,Kallikrein-Trypsin Inactivator,Kunitz Pancreatic Trypsin Inhibitor,Trypsin Inhibitor, Basic, Pancreatic,Trypsin Inhibitor, Kunitz, Pancreatic,Antilysin,Bovine Pancreatic Trypsin Inhibitor,Contrical,Contrykal,Dilmintal,Iniprol,Kontrikal,Kontrykal,Pulmin,Traskolan,Trasylol,Zymofren,Inactivator, Kallikrein-Trypsin,Kallikrein Trypsin Inactivator
D008297 Male Males
D010418 Pentagastrin A synthetic pentapeptide that has effects like gastrin when given parenterally. It stimulates the secretion of gastric acid, pepsin, and intrinsic factor, and has been used as a diagnostic aid. Acignost,Gastrin Pentapeptide,Peptavlon,Pentapeptide, Gastrin
D011706 Pyloric Antrum The region between the sharp indentation at the lower third of the STOMACH (incisura angularis) and the junction of the PYLORUS with the DUODENUM. Pyloric antral glands contain mucus-secreting cells and gastrin-secreting endocrine cells (G CELLS). Antrum, Pyloric,Gastric Antrum,Antrum, Gastric,Antrums, Gastric,Antrums, Pyloric,Gastric Antrums,Pyloric Antrums
D011919 Rats, Inbred Strains Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations or by parent x offspring matings carried out with certain restrictions. This also includes animals with a long history of closed colony breeding. August Rats,Inbred Rat Strains,Inbred Strain of Rat,Inbred Strain of Rats,Inbred Strains of Rats,Rat, Inbred Strain,August Rat,Inbred Rat Strain,Inbred Strain Rat,Inbred Strain Rats,Inbred Strains Rat,Inbred Strains Rats,Rat Inbred Strain,Rat Inbred Strains,Rat Strain, Inbred,Rat Strains, Inbred,Rat, August,Rat, Inbred Strains,Rats Inbred Strain,Rats Inbred Strains,Rats, August,Rats, Inbred Strain,Strain Rat, Inbred,Strain Rats, Inbred,Strain, Inbred Rat,Strains, Inbred Rat
D002415 Cats The domestic cat, Felis catus, of the carnivore family FELIDAE, comprising over 30 different breeds. The domestic cat is descended primarily from the wild cat of Africa and extreme southwestern Asia. Though probably present in towns in Palestine as long ago as 7000 years, actual domestication occurred in Egypt about 4000 years ago. (From Walker's Mammals of the World, 6th ed, p801) Felis catus,Felis domesticus,Domestic Cats,Felis domestica,Felis sylvestris catus,Cat,Cat, Domestic,Cats, Domestic,Domestic Cat
D004305 Dose-Response Relationship, Drug The relationship between the dose of an administered drug and the response of the organism to the drug. Dose Response Relationship, Drug,Dose-Response Relationships, Drug,Drug Dose-Response Relationship,Drug Dose-Response Relationships,Relationship, Drug Dose-Response,Relationships, Drug Dose-Response
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
D004558 Electric Stimulation Use of electric potential or currents to elicit biological responses. Stimulation, Electric,Electrical Stimulation,Electric Stimulations,Electrical Stimulations,Stimulation, Electrical,Stimulations, Electric,Stimulations, Electrical

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