Abstract:As ulcerogenesis could be explained by a defect in the mucosal proteins, a study of the soluble proteins extracted from human gastric mucosa was made. The proteins were fractionated by gel electrophoresis. 7–8 major bands and several minor bands were present on polyacrylamide tube gels and 30 bands were visible on isoelectric focusing gels. No reproducible differences were found between body and antral mucosa or between the mucosa of gastric ulcer, duodenal ulcer and gastric carcinoma patients.
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