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Original Article

Gastroesophageal Sphincter Pressure and Serum Gastrin: Reaction to Food Stimulation in Normal Subjects and in Patients with Gastric or Duodenal Ulcer

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Pages 363-368 | Received 21 Nov 1977, Accepted 20 Dec 1977, Published online: 23 Feb 2010
 

Abstract

Gastroesophageal sphincter pressure and serum gastrin concentration were determined in the fasting state and after the intake of a protein food in 6 normal subjects, 6 patients with gastric ulcer, and in 6 patients with duodenal ulcer. No significant differences in the fasting state were found. After the food intake, gastroesophageal sphincter pressure increased significantly over basal values in normals and in patients with duodenal ulcer, but in patients with gastric ulcer a decrease in pressure was noted. Serum gastrin rose in all subjects studied after the food stimulation, but it was significant only in the gastric and duodenal ulcer group. In two normals and two patients with duodenal ulcer the ingestion of a potato meal similar in weight to the protein meal showed no change either in serum gastrin or in sphincter pressure. In one additional normal and one duodenal ulcer, the constant intravenous infusion of Aminosol during 2 hours produced no change in serum gastrin or sphincter pressure. These results indicate that the effect of protein food on sphincter pressure is different for gastric or duodenal ulcers; furthermore, that this effect is mediated by proteins in the gastrointestinal tract.

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