Oxygen metabolism in blood of patients with gastric and duodenal ulcer disease.

Among multiagent mechanisms causing peptic ulcer disease, oxygen free radicals hypothesis is reasonable. Our investigation concerned the determination of oxygen free radicals generation lipid peroxidation and enzymatic antioxidative defense in blood of patients with peptic ulcer disease. The examinations were performed in 79 males, non-smokers, aged 20-51 with peptic ulcer disease, clinically diagnosed as gastric or duodenal ulcer.