The role of lipid peroxidation in the pathogenesis of gastric ulcer was investigated in a rat model produced by water-immersion restraint stress. After the immersion of rats in 23°C water with restraint, blood flow of the gastric wall was significantly decreased and hemorrhagic erosions were seen in the body of the stomach. Thiobarbituric acid-reactive substances, an index of lipid peroxidation, in the gastric mucosa were significantly increased after the stress. These results suggest that lipid peroxidation may play a role in the pathogenesis of gastric mucosal lesions induced by stress.
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Yoshikawa et al. (1986) studied this question.
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