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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Effect of oral and intravenous 16,16-dimethyl prostaglandin E2 in duodenal ulcer and Zollinger-Ellison syndrome patients.

Oral 16,16-dimethyl prostaglandin E2 is a potent inhibitor of meal-stimulated gastric acid secretion and gastrin release in humans. Experiments were performed in 5 patients with inactive duodenal ulcer to determine the effect of graded doses of intravenous 16,16-dimethyl PGE2 on meal-stimulated gastric acid secretion and gastrin release to demonstrate whether it is necessary for 16-16-dimethyl PGE2 to come into direct luminal contact with the oxyntic and antral gland portions of the stomach to produce its inhibitory effects. All doses of 16,16-dimethyl PGE2, between 0.01 and 0.1 microgram/kg i.v. and between 0.01 and 1.0 microgram/kg orally produced significant postprandial inhibitory effects on both gastric acid secretion and gastrin release as compared with saline control. 0.1 microgram/kg of intravenous of 1 microgram/kg of oral 16,16-dimethyl PGE2 inhibited meal-stimulated acid secretion and gastrin by 80-90%. In 6 unoperated Zollinger-Ellison syndrome patients, 1 microgram/kg of oral 16,16-dimethyl PGE2 significantly inhibited fasting gastric acid hypersecretion by approximately 85% without significantly altering serum gastrin. Each of the oral doses of 16,16-dimethyl PGE2 (0.01-1 microgram/kg) were without untoward effect, as were intravenous doses of 0.01-01 microgram/kg. Maximal inhibition of acid secretion was found with 0.1 microgram/kg 16,16-dimethyl PGE2 i.v. as compared with 1.0 microgram/kg orally. Since 16,16-dimethyl PGE2, whether given orally or intravenously, is a potent inhibitor of both gastric acid secretion and meal-stimulated gastrin release, without apparent untoward side effects, clinical trials with 16,16-dimethyl PGE2 are indicated in patients with acid peptic disease.[1]

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