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What (who) is gast - definition
MAMMALIAN PROTEIN FOUND IN HOMO SAPIENS
Gastrins; GAST; GAST (gene); Hypergastrinemia
gastrin
¦ noun Biochemistry any of a group of peptide hormones which stimulate secretion of gastric juice, and are secreted into the bloodstream by the stomach wall in response to the presence of food.
Gastrin
Gastrin is a peptide hormone that stimulates secretion of gastric acid (HCl) by the parietal cells of the stomach and aids in gastric motility. It is released by G cells in the pyloric antrum of the stomach, duodenum, and the pancreas.
Wikipedia
Gastrin
Gastrin is a peptide hormone that stimulates secretion of gastric acid (HCl) by the parietal cells of the stomach and aids in gastric motility. It is released by G cells in the pyloric antrum of the stomach, duodenum, and the pancreas.
Gastrin binds to cholecystokinin B receptors to stimulate the release of histamines in enterochromaffin-like cells, and it induces the insertion of K+/H+ ATPase pumps into the apical membrane of parietal cells (which in turn increases H+ release into the stomach cavity). Its release is stimulated by peptides in the lumen of the stomach.
Examples of use of gast
1. When Bob Gast was a junior agent at FBI headquarters in the early 1'70s, W.
2. "He was not one of those flashy guys, particularly," Gast recalls.
3. "For too many times, we‘ve brought knives to gun fights," said Chuck Gast, a delegate from Maryland.
4. "He was a very, very tough guy," recalled Bob Gast, a supervisor in the espionage and intelligence division.
5. "Having a senior bureau official go around the system and go to the media is probably something most of us would not condone in general," said Gast, who is president of the Society of Former Special Agents of the FBI.