ACTION OF ETHANOL AND SOME ALCOHOLIC BEVERAGES ON GASTRIC ACID SECRETION IN ANAESTHETIZED RATS

The action of intragastric ethaool in various concentrations equivalent to those found in alcoholic beverages (1.5–40% v/v), ethanol 96% (v/v) and of some commonly ingested alcoholic beverages produced by alcoholic fermentation (beer, wine, champagne, martini and sherry) or by fermentation plus dist...

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Published in:Alcohol and alcoholism (Oxford) 1997-01, Vol.32 (1), p.23-31
Main Authors: TEYSSEN, STEPHAN, GONZÁLEZ-CALERO, GLORIA, KORN, ANNELEN, SINGER, MANFRED V
Format: Article
Language:English
Subjects:
Alcoholic Beverages - toxicity
Alcoholism and acute alcohol poisoning
Animals
Biological and medical sciences
Dose-Response Relationship, Drug
Ethanol - pharmacology
Fermentation
Gastric Acid - metabolism
Male
Medical sciences
Rats
Rats, Wistar
Secretory Rate - drug effects
Toxicology
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Summary:The action of intragastric ethaool in various concentrations equivalent to those found in alcoholic beverages (1.5–40% v/v), ethanol 96% (v/v) and of some commonly ingested alcoholic beverages produced by alcoholic fermentation (beer, wine, champagne, martini and sherry) or by fermentation plus distillation (e.g. whisky, cognac, calvados, armagnac and rum) on gastric acid output (GAO) was studied in anaesthetized Wistar rats. Ethanol concentrations of 1.5%, 4% and 10% v/v did not significantly alter basal GAO, whereas all higher concentrations of ethanol (20%, 40% and 96% v/v) significantly (P < 0.05) and dose-dependently decreased the GAO. All alcoholic beverages produced by fermentation significantly increased GAO by 30–35% of maximal acid output (MAO; 48/ig/kg pentagastrin intramuscularly), whereas alcoholic beverage produced by fermentation plus distillation significantly decreased GAO as compared to control (isotonic glucose and distilled water). Glucose solutions to which yeast was added, resulting in fermentation, were as potent stimuli of GAO as beer. Lyophilized fermented glucose at different concentrations (dilution of 1:20 to 1:1) dose-dependently stimulated GAO: the highest dilution (1:20) had no effect, the 1:5 dilution significantly increased gastric acid secretion similarly to that of beer and fermented glucose. The highest concentration of lyophilized fermented glucose (1:1) was as potent as the MAO after pentagastrin (90% of MAO). In conclusion, the present investigation shows for the first time that, in rats: (1) ethanol in a concentration >10% v/v inhibits GAO; (2) lower ethanol concentrations (
ISSN:0735-0414
1464-3502
DOI:10.1093/oxfordjournals.alcalc.a008230