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Effects of Pentoxifylline on Alcohol-Induced Gastric Injury and Acid Secretion in Rats

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Abstract

We aimed to evaluate the protective effects of pentoxifylline on alcohol-induced gastric injury, its relation with nitric oxide and prostaglandin synthesis, as well as gastric acidity in rats. Acute gastric mucosal injury was induced by intragastric infusion of 2 ml 98% alcohol. Pentoxifylline was given at 100 mg/kg intraperitoneally. Indomethacin and NG-nitro-L arginine were used to inhibit prostaglandin and nitric oxide synthesis, respectively. Macroscopic and microscopic gastric injuries were evaluated. Gastric pH, tissue malondialdehyde levels, oxidized and reduced glutathion (GSSG/GSH) levels, and effects of pentoxifylline on gastric acid output were measured. Pentoxifylline pretreatment significantly reduced macroscopic and microscopic gastric injury. Malondialdehyde level was lower in pentoxifylline treated rats (351.1 ± 94.1 nmol/g vs 624.3 ± 234.2 nmol/g). Pentoxifylline has a protective role on alcohol-induced gastric mucosal injury in rats. This effect is not related to synthesis of prostaglandins and changes in gastric acidity but does seem to be related to nitric oxide-mediated pathways. In contrast, pentoxifylline increases gastric acid output significantly.

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References

  1. Ward A, Clissold S: Pentoxifylline: a review of its pharmacodynamic and pharmacokinetic properties, and its therapeutic efficacy. Drugs 34:50-97, 1987

    Google Scholar 

  2. Samlaska P, Winfield EA: Pentoxifylline. J Am Acad Dermatol 30:603-621, 1994

    Google Scholar 

  3. Ely H: Pentoxifylline therapy in dermatology: a review of localized hyperviscosity and its effects on the skin. Dermatol Clin 6:585-608, 1988

    Google Scholar 

  4. Tominaga G, Waxman K, Soliman H, Sarfeh J: Protective effect of pentoxifylline on gastric mucosa. J Surg Res 44:727-732, 1988

    Google Scholar 

  5. Santucci L, Fioricci S, DiMatteo FM, Morelli A: Role of tumour necrosis factor alpha release and leukocyte margination in indomethacin-induced gastric injury in rats. Gastroenterology 108:393-401, 1995

    Google Scholar 

  6. Robert A: Cytoprotection by prostaglandins. Gastroenterology 77(4):761-767, 1979

    Google Scholar 

  7. Wallace JL: Increased resistance of the rat gastric mucosa to hemorrhagic damage after exposure to an irrtant. Role of the mucoid cap and prostaglandin synthesis. Gastoenterology 94:22-32, 1988

    Google Scholar 

  8. Tache Y, Saperas E: Potent inhibition of gastric acid secretion and ulcer formation by centrally and peripherally administered interleukin-1. Ann NY Acad Sci 664:353-368, 1992

    Google Scholar 

  9. Lacy ER, Ito S: Microscopic analysis of ethanol damage to rat gastric mucosa after treatment with a prostaglandin. Gastroenterology 83:619-625, 1982

    Google Scholar 

  10. Ohkawa H, Ohishi N, Yagi K: Assay for lipid peroxides in animal tissues by thiobarbituric acid reaction. Anal Biochem 95:351-358, 1979

    Google Scholar 

  11. Rungby J, Flyvbierg A, Andersen H, Nyborg K: Lipid peroxidation in early experimental diabetes in rats: effect of diabetes and insulin. Acta Endocrinol 126:378-380, 1992

    Google Scholar 

  12. Teare JP, Punchard PA, Powell P, Lumb J: Automated spectrophotometric method for determining oxidized and reduced glutathione in liver. Clin Chem 39(4):686-689, 1993

    Google Scholar 

  13. Griffith OW: Determination of glutathion and glutathion disulfide using glutathione reductase and 2-vinylpyridine. Anal Biochem 106:207-212, 1980

    Google Scholar 

  14. Yamamato O, Okada Y, Okabe S: Effects of proton pomp inhibitor, omeprazole, on gastric secretion and gastric and duedonal ulcer or erosions in rats. Dig Dis Sci 29:394-401, 1984

    Google Scholar 

  15. Salim AWS: Role of oxygen derived free radicals in mechanism of acute and chronic duedonal ulceration in the rat. Dig Dis Sci 35:73-79, 1990

    Google Scholar 

  16. Szelenyi I, Brune K: Possible role of free radicals in ethanol-induced gastric mucosal damage in rats. Dig Dis Sci 33:865-871, 1988

    Google Scholar 

  17. Steuin HS, Esplugues J, Whittle B: Direct cytotoxic effects of oxygen radicals on the gastric mucosa. Surgery 106:318-324, 1989

    Google Scholar 

  18. Mutoh H, Hiraishi H, Ota S, Ivey K, Terano A: Role of oxygen radicals in ethanol-induced damage to cultured gastric mucosal cells. Am J Physiol 258:603-609, 1990

    Google Scholar 

  19. Mutoh H, Hiraishi H, Ota S, Yoshida H, Ivey K, Terano A: Protective role of intracellular glutathione against ethanol induced damage to cultured gastric mucosal cells. Gastroenterology 98:1452-1459, 1990

    Google Scholar 

  20. Bou-Abbud CF, Wayland H, Paulsen G, Guth PH: Microcirculatory stasis precedes tissue necrosis in ethanol induced gastric mucosal injury. Dig Dis Sci 33:872-877, 1988

    Google Scholar 

  21. Pihan G, Regillo BA, Szabo MD: Free radical and lipid peroxidation in ethanol or aspirin induced gastric mucosal injury. Dig Dis Sci 32(12):1395-1401, 1987

    Google Scholar 

  22. Szabo S, Trier JS, Brown A, Schnoor J. Early vascular and increased vascular permeability in gastric mucosal injury caused by ethanol in the rat. Gastroenterology 88:228-236, 1985

    Google Scholar 

  23. Robert A, Eberle D, Kaplowitz N: Role of glutathione in gastric mucosal cytoprotection. Am J Physiol 247:296-304, 1984

    Google Scholar 

  24. Mandell G: Cytokines, phagocytes, and pentoxifylline. J Cardiovas. Pharmacol 258(2):20-22, 1995

    Google Scholar 

  25. Monacado S, Palmer RM, Higgs EA: Nitric oxide physiology pathophysiology and pharmacology. Pharmacol Rev 43:109-142, 1991

    Google Scholar 

  26. Casadevall M, Panes J, Pigue JM, Maroni N, Bosch J, Whittle BJR: Involvement of nitric oxide and prostaglandin's in gastric mucosal hyperemia of portal hypertensive anesthesized rats. Hepatology 18:628-634, 1993

    Google Scholar 

  27. Santucci L, Fioricci S, Giansanti M, Brunori PM: Pentoxifylline prevents indomethacin-induced gastric mucosal damage in rats: role of tumour necrois factor alpha. Gut 35(7):909-915, 1994

    Google Scholar 

  28. Karaoýlu Aö, Kösekli MA, özütemiz ö, Erkuß M, ünal E, Batur Y: The effects of pentoxifylline, omeprazole, pentoxifylline and omeprazole on ethanol-induced gastric mucosal injury in rats. Turk J Gastroenterol 10(2):20-25, 1999

    Google Scholar 

  29. Rieneck K, Diamant M, Haahr PM, Schonharting M, Bendtzen K: In vitro immunomodulatory effects of pentoxifylline. Immunol Lett 37:131-138, 1993

    Google Scholar 

  30. Beales IL, Calam J: Interleukin 1 beta and tumour necrosis factor alpha inhibit acid secretion in cultured rabbit parietal cells by multiple pathways. Gut 42(2):227-234, 1998

    Google Scholar 

  31. Saperas E, Tache Y: Central interleukin-1 beta-induced inhibition of acid secretion in rats: specificity of action. Life Sci 52(9):785-792, 1993

    Google Scholar 

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Yönetci, N., Kösekli, M.A., Özütemiz, A.Ö. et al. Effects of Pentoxifylline on Alcohol-Induced Gastric Injury and Acid Secretion in Rats. Dig Dis Sci 48, 1392–1396 (2003). https://doi.org/10.1023/A:1024290615796

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