Free amino acids in gastric juice of patients with gastric or duodenal ulcer and gastric carcinoma, with special reference to the change after operation.

Shimizu1) in our clinic has studied, by Sawasaki's paper-chromato graphic method,2) the state of occurrence of free amino acids in the gastric juice mainly before operation of surgical patients with gastric or duodenal ulcer and gastric carcinoma. In the work to be reported here, the free amino acids of the gastric juice were collected, by means of ion-exchange resin recommended by Partridge3)4) and others, with 14 surgical cases of non-gastric diseases, 31 cases of gastric and/or duodenal ulcer, and 68 cases of gastric carcinoma, and examined by a paper-chromatographic method. With gastrectomized cases (29 cases of gastric and/or duodenal ulcer and 43 cases of gastric carcinoma), the free amino acids in the gastric juice before and after operation were compared. More detailed report will be published elsewhere.