title: Effect of vitamin E and selenium on hypothermic restraint stress and chemically-induced ulcers.
abstract: The present study was undertaken to determine the effect of a combination of selenium and vitamin E on stress and chemical-induced gastric ulcers in rats. The gastric mucosal lesions were produced by hypothermic restraint stress, indomethacin, reserpine, and mucosal damaging agents including 80% ethanol, 0.6 M HCl, 25% NaCl, and 0.2 M NaOH. The gastric secretion studies were undertaken using Shay's pylorus ligation model. The results of this study demonstrated that the treatment of rats with selenium or vitamin E significantly reduced the basal gastric acid secretions when given individually; however, the combination of these agents produced a better inhibition of gastric acid secretions as compared to their individual effect. Both selenium and vitamin E were found to protect gastric mucosa against the lesions produced by hypothermic restraint stress and chemicals, but a highly significant protection was observed when they were used concomitantly. Vitamin E alone and with selenium significantly inhibited ethanol-induced depletion of gastric nonprotein sulfhydryl compounds. Our findings also showed that the combination of selenium and vitamin E provided better protection to gastric mucosa against hypothermic restraint-induced gastric wall mucus depletion. This study clearly suggests the feasibility of using selenium and vitamin E concurrently to achieve better gastroprotective effects.
authors.affiliation: College of Medicine, King Faisal University, Dammam, Saudi Arabia.
authors.forename: A R
authors.initials: AR
authors.lastname: al-Moutairy
authors.forename: M
authors.initials: M
authors.lastname: Tariq
mesh_terms: D000818:Animals; D000975:Antioxidants / Q000494:pharmacology*; D003080:Cold Temperature; D006851:Hydrochloric Acid / Q000633:toxicity; D007103:Immobilization; D007213:Indomethacin; D051381:Rats; D017208:Rats, Wistar; D012110:Reserpine; D012643:Selenium / Q000494:pharmacology*; D012965:Sodium Chloride / Q000633:toxicity; D012972:Sodium Hydroxide / Q000633:toxicity; D013276:Stomach Ulcer / Q000139:chemically induced / Q000209:etiology / Q000378:metabolism / Q000473:pathology*; D013312:Stress, Physiological / Q000150:complications; D014810:Vitamin E / Q000494:pharmacology*
chemical_list: D000975:Antioxidants; D014810:Vitamin E; D012965:Sodium Chloride; D012972:Sodium Hydroxide; D012110:Reserpine; D012643:Selenium; D006851:Hydrochloric Acid; D007213:Indomethacin