PMID: 6170208Nov 1, 1980Paper

Is ethanol-induced damage of the gastric mucosa a hyperosmotic effect? Comparative studies on the effects of ethanol, some other hyperosmotic solutions and acetylsalicylic acid on rat gastric mucosa

Acta Pharmacologica Et Toxicologica
J PuurunenJ Hirvonen

Abstract

The involvement of hyperosmolarity in ethanol-induced gastric mucosal damage was studied by comparing the effects of ethanol on the rat gastric mucosa and those caused by hyperosmotic glucose and choline chloride solutions, and by an almost isosmotic solution of acetylsalicylic acid. Upon intragastric instillation, all test solutions, namely 3M and 5M ethanol (3330 and 5590 mosmol/kg resp.), 3M glucose (3890 mosmol/kg), 1.5 M choline chloride (2840 mosmol/kg) and 20 mM acetylsalicylic acid, also containing 100 mM HCl and 50 mM NaCl, produced macroscopic and microscopic lesions of the gastric mucosa. The haemorrhages induced by ethanol and acetylsalicylic acid solutions were more evenly distributed, whereas most lesions produced by the glucose and choline chloride solutions were located at the rumeno-fundic junction. There were no qualitative differences between the microscopic lesions caused by the various instillates, however. All the test solutions broke the gastric mucosal barrier and increased histamine release and pepsinogen output, but in the rats treated with acetylsalicylic acid these effects were less pronounced. Ethanol, glucose and choline chloride solutions increased gastric mucosal flow and fluid output from the st...Continue Reading

References

Aug 24, 1978·Naunyn-Schmiedeberg's Archives of Pharmacology·J Puurunen, E Westermann
Mar 1, 1978·The American Journal of Digestive Diseases·J E FoxI T Beck
Apr 1, 1976·Proceedings of the Society for Experimental Biology and Medicine·L L Tague, E D Jacobson
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Jan 1, 1974·Acta Physiologica Scandinavica·B Frenning
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May 16, 1980·European Journal of Pharmacology·J Puurunen
Sep 20, 1932·The Journal of General Physiology·M L Anson, A E Mirsky

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Citations

Feb 1, 1983·The Journal of Pharmacy and Pharmacology·P J ChiuA Barnett
Apr 5, 2002·Phytotherapy Research : PTR·L N SeitoL C Di Stasi
Jan 1, 1983·Zeitschrift für Rechtsmedizin. Journal of legal medicine·J HirvonenJ Puurunen
May 30, 2001·Journal of Ethnopharmacology·E M GalatiM R Mondello
Feb 1, 1985·Archives of Biochemistry and Biophysics·A SlomianyB L Slomiany
May 9, 2002·Phytomedicine : International Journal of Phytotherapy and Phytopharmacology·Fabiana G Gonzalez, Luiz C Di Stasi

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