Biomaterial Database

Synthetic gastric inhibitory polypeptide. Stimulatory effect on insulin and glucagon secretion in the rat. 1977

T Taminato, and Y Seino, and Y Goto, and Y Inoue, and S Kadowaki

Effect of synthetic gastric inhibitory polypeptide (GIP) on insulin and glucagon secretion was stuied in vivo and in vitro in the rat. Intravenous administration of 1 microng./kg. GIP along with 0.625 gm./kg. glucose caused a more prominent rise of plasma insulin than did 0.625 gm./kg. glucose alone. The suppression of plasma glucagon levels induced by glucose was attenuated partially but not significantly by the concomitant administration of GIP. GIP (1 microng./kg. i.v.) alone raised both plasma insulin and glucago levels. In in-vitro experiments with isolated pancreatic islets, GIP significantly augmented insulin release induced by either 8.3 mM or 16.7 mM glucose, whereas the augmentation of glucagon release was observed at 3.3 mM, 8.3 MM, and 16.7 mM glucose concentrations. Three peptides, consisting of 1-28, 22-43, and 15-43 amino acids of GIP, failed to potentiate insulin and glucagon secretion. These results suggest that synthetic GIP has a stimulating effect on insulin and glucagon secretion.

UI	MeSH Term	Description	Entries
D007275	Injections, Intravenous	Injections made into a vein for therapeutic or experimental purposes.	Intravenous Injections,Injection, Intravenous,Intravenous Injection
D007328	Insulin	A 51-amino acid pancreatic hormone that plays a major role in the regulation of glucose metabolism, directly by suppressing endogenous glucose production (GLYCOGENOLYSIS; GLUCONEOGENESIS) and indirectly by suppressing GLUCAGON secretion and LIPOLYSIS. Native insulin is a globular protein comprised of a zinc-coordinated hexamer. Each insulin monomer containing two chains, A (21 residues) and B (30 residues), linked by two disulfide bonds. Insulin is used as a drug to control insulin-dependent diabetes mellitus (DIABETES MELLITUS, TYPE 1).	Iletin,Insulin A Chain,Insulin B Chain,Insulin, Regular,Novolin,Sodium Insulin,Soluble Insulin,Chain, Insulin B,Insulin, Sodium,Insulin, Soluble,Regular Insulin
D007515	Islets of Langerhans	Irregular microscopic structures consisting of cords of endocrine cells that are scattered throughout the PANCREAS among the exocrine acini. Each islet is surrounded by connective tissue fibers and penetrated by a network of capillaries. There are four major cell types. The most abundant beta cells (50-80%) secrete INSULIN. Alpha cells (5-20%) secrete GLUCAGON. PP cells (10-35%) secrete PANCREATIC POLYPEPTIDE. Delta cells (~5%) secrete SOMATOSTATIN.	Islands of Langerhans,Islet Cells,Nesidioblasts,Pancreas, Endocrine,Pancreatic Islets,Cell, Islet,Cells, Islet,Endocrine Pancreas,Islet Cell,Islet, Pancreatic,Islets, Pancreatic,Langerhans Islands,Langerhans Islets,Nesidioblast,Pancreatic Islet
D008297	Male		Males
D001786	Blood Glucose	Glucose in blood.	Blood Sugar,Glucose, Blood,Sugar, Blood
D005749	Gastric Inhibitory Polypeptide	A gastrointestinal peptide hormone of about 43-amino acids. It is found to be a potent stimulator of INSULIN secretion and a relatively poor inhibitor of GASTRIC ACID secretion.	Glucose-Dependent Insulinotropic Peptide,Gastric-Inhibitory Polypeptide,Glucose Dependent Insulinotropic Peptide,Glucose-Dependent Insulin-Releasing Peptide,Glucose Dependent Insulin Releasing Peptide,Inhibitory Polypeptide, Gastric,Insulin-Releasing Peptide, Glucose-Dependent,Insulinotropic Peptide, Glucose-Dependent,Peptide, Glucose-Dependent Insulin-Releasing,Peptide, Glucose-Dependent Insulinotropic,Polypeptide, Gastric Inhibitory,Polypeptide, Gastric-Inhibitory
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
D005934	Glucagon	A 29-amino acid pancreatic peptide derived from proglucagon which is also the precursor of intestinal GLUCAGON-LIKE PEPTIDES. Glucagon is secreted by PANCREATIC ALPHA CELLS and plays an important role in regulation of BLOOD GLUCOSE concentration, ketone metabolism, and several other biochemical and physiological processes. (From Gilman et al., Goodman and Gilman's The Pharmacological Basis of Therapeutics, 9th ed, p1511)	Glucagon (1-29),Glukagon,HG-Factor,Hyperglycemic-Glycogenolytic Factor,Proglucagon (33-61),HG Factor,Hyperglycemic Glycogenolytic Factor
D005947	Glucose	A primary source of energy for living organisms. It is naturally occurring and is found in fruits and other parts of plants in its free state. It is used therapeutically in fluid and nutrient replacement.	Dextrose,Anhydrous Dextrose,D-Glucose,Glucose Monohydrate,Glucose, (DL)-Isomer,Glucose, (alpha-D)-Isomer,Glucose, (beta-D)-Isomer,D Glucose,Dextrose, Anhydrous,Monohydrate, Glucose
D000078790	Insulin Secretion	Production and release of insulin from PANCREATIC BETA CELLS that primarily occurs in response to elevated BLOOD GLUCOSE levels.	Secretion, Insulin