Antiulcer activity of hypertonic solutions in the rat: Possible role of prostaglandins

Abraham Danon, Georges Assouline

Research output: Contribution to journalArticlepeer-review

35 Scopus citations

Abstract

The effects of hypertonic solutions on gastric acidity and on experimental gastric and duodenal ulcers as well as on gastric prostaglandins (PGs) were studied in the rat. The oral administration of a 10% NaCl solution resulted in complete absence of free acidity and very significant reductions in total acidity 24 h after pyloric ligation. The antiulcer effect of hypertonic saline was studied in three experimental models. n pyloric-ligated rats, both the incidence and the severity of gastric ulcers were remarkably reduced by hypertonic saline treatment. Indomethacin-induced gastric erosions were significantly reduced by hypertonic NaCl or sorbitol and completely prevented by hypertonic xylitol. Cysteamine-induced duodenal ulcers were also significantly reduced by hypertonic solutions of NaCl, xylitol or sorbitol. In the latter model, indomethacin potentiated the ulcerogenic effect of cysteamine and also reduced the efficacy of the hypertonic NaCl gavage. The possible contribution of PGs to these effects was further investigated by analysing PGE in the gastric mucosa and juice. Rats treated orally with hypertonic NaCl solutions had several-fold higher PGE contents in their gastric mucosa as well as higher PGE levels in the gastric juice. It is concluded that hypertonic solutions stimulate endogenous PGE biosynthesis and also exert profound antiulcer effects in the rat. A causal relationship between the two phenomena is suggested.

Original languageEnglish
Pages (from-to)425-431
Number of pages7
JournalEuropean Journal of Pharmacology
Volume58
Issue number4
DOIs
StatePublished - 15 Oct 1979

Keywords

  • Gastric acidity
  • Hypertonic solutions
  • Prostaglandins
  • Ulcer

ASJC Scopus subject areas

  • Pharmacology

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