[Proteolytic activity of duodenal mucosa in elderly and senile patients in the presence of duodenal hemorrhage from ulcer].

During investigation of proteolisis of duodenum mucosa in patients of elderly and senile age with duodenal ulcer, complicated by hemorrhage, in terms up 8 for days there was revealed considerable increase of proteolytic activity, especially of high-molecular proteins and collagens, maximum--on the first day of hemorrhage. In all terms the revealed activity of anterior wall of duodenum was higher, than posterior.