Document Detail


Application of a three-compartment model to a study of the effects of sex, alcohol dose and concentration, exercise and food consumption on the pharmacokinetics of ethanol in healthy volunteers.
MedLine Citation:
PMID:  1930365     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
A recently developed three-compartment model for the absorption and elimination of ingested alcohol was applied to re-analyse a study on the effects of various factors known to influence the blood-alcohol curve. The absorption and elimination of alcohol after drinking diluted alcohol were studied in healthy volunteers under strictly standardized conditions. The factors studied were sex, dose, concentration, physical exercise, meal consumption before drinking, energy content and composition of the meal, and time of drinking in relation to meal consumption. Gastric emptying and absorption from the small intestine were assumed to be first-order, and a possible delay (or acceleration) of gastric emptying was accounted for by a feedback-control parameter. The elimination process was assumed to follow Michaelis-Menten kinetics. Clear effects were observed of sex and dose, and aspects of meal consumption on absorption and elimination of alcohol. The ingestion of a meal prior to the intake of alcohol reduced both the gastric emptying rate and absorption efficiency of alcohol, increased the gastric emptying delay and reduced the rate of elimination. The absorption efficiency was even lower when the alcohol was consumed during the meal instead of after the meal. Using alcohol during the meal accelerated gastric emptying and reduced absorption efficiency as well as rate of elimination. High-fat meals resulted in the highest gastric emptying rate and rate of absorption from the small intestine, whereas high-protein and high-sucrose meals resulted in the lowest gastric emptying rate. Simultaneous consumption of a high-sucrose meal and alcohol increased gastric emptying delay.(ABSTRACT TRUNCATED AT 250 WORDS)
Authors:
M Wedel; J E Pieters; N A Pikaar; T Ockhuizen
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Alcohol and alcoholism (Oxford, Oxfordshire)     Volume:  26     ISSN:  0735-0414     ISO Abbreviation:  Alcohol Alcohol.     Publication Date:  1991  
Date Detail:
Created Date:  1991-12-26     Completed Date:  1991-12-26     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8310684     Medline TA:  Alcohol Alcohol     Country:  ENGLAND    
Other Details:
Languages:  eng     Pagination:  329-36     Citation Subset:  IM    
Affiliation:
TNO Toxicology and Nutrition Institute, Department of Nutrition, Zeist, The Netherlands.
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MeSH Terms
Descriptor/Qualifier:
Adult
Alcohol Drinking / blood*
Body Mass Index
Dietary Carbohydrates / metabolism
Dietary Fats / metabolism
Dietary Proteins / metabolism
Dose-Response Relationship, Drug
Ethanol / pharmacokinetics*
Exercise / physiology
Female
Humans
Intestinal Absorption / physiology*
Male
Metabolic Clearance Rate / physiology
Sex Factors
Chemical
Reg. No./Substance:
0/Dietary Carbohydrates; 0/Dietary Fats; 0/Dietary Proteins; 64-17-5/Ethanol

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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