Influence of sex hormones on ethanol-induced gastric haemorrhagic erosions in rats

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Abstract

The role of sex hormones in the pathogenesis of ethanol-induced gastric erosions was investigated following the recent observation that ethanol generates more severe gastric damage in male rats. Female and male Wistar rats aged 110±6 days were used. Intact female, ovariectomized female, intact male, orchidectomized male and cyproterone acetate-pretreated (this compound a testosterone antagonist) male rats were investigated, 1 ml of 75% ethanol was used to induce gastric lesions. The extent of the erosions was determined planimetrically 60 min after ethanol administration. The plasma testosterone and 17-beta-oestradiol levels were checked by radioimmunoassay (RIA) in gonadectomized rats. Ethanol generates more severe lesions in male rats. Orchidectomy and cyproterone acetate treatment each reduced the extent of ethanol-induced gastric erosions in male rats. Ovariectomy had no effect in this model. The plasma testosterone and 17-beta-oestradiol levels were significantly reduced after gonadectomy. It is concluded that endogenous testosterone plays an aggressive role in the pathogenesis of ethanol-induced gastric erosions in rats.

Original languageEnglish
Pages (from-to)289-292
Number of pages4
JournalActa physiologica Hungarica
Volume80
Issue number1-4
Publication statusPublished - Dec 1 1992

ASJC Scopus subject areas

  • Physiology (medical)

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