[Lysozyme dynamics in the saliva, blood serum and gastric juice in gastric and duodenal ulcer].

The activity of lysozyme in the saliva, blood serum and gastric juice was studied in 51 patients operated upon for peptic ulcers. The activity of lysozyme in the acid gastric juice was found to be lower than that in the neutral and low-alkaline medium. Following vagotomy, the contents of lysozyme in the blood serum and gastric juice was higher than following the resection of the stomach. The investigation of factors of non-specific defense of the organism, lysozyme in particular, is thought to be necessary for the estimation of the postoperative period and healing of the ulcer.