[Serum gastrin levels in patients with recurrent peptic ulcer]

Serum gastrin behaviour after stimulation with a protein meal was examined in 20 patients of both sexes suffering from x-graphically and endoscopically accertained recurring peptic ulcer, and a marked increase was found in the hormone in the majority of patients when observations were made 15 and 45 minutes after the meal. The genesis of this increase is therefore discussed, with consideration of the importance that extra-gastric sites of production of the hormone may have in such penomenon.