Citation

Kohlenberg-Müller K, Bitsch I. Blutalkohol 1990; 27(1): 40-48.

Vernacular Title

Neue Methoden zur pharmakokinetischen Beschreibung des Alkohols und seiner

Affiliation

Institut fur Ernahrungswissenschaft der Justus-Liebig-Universitat Giessen.

Copyright

(Copyright © 1990, International Committee on Alcohol, Drugs and Traffic Safety and Bund gegen Alkohol und Drogen im Straßenverkehr, Publisher Steintor Verlag)

DOI

unavailable

PMID

2310537

Abstract

The Pharmacokinetics of ethanol and its metabolites were examined in 10 young healthy women and men after 1-hr intravenous ethanol application of 7.8 mmol/kg body weight. Therefore, a new pharmacokinetic model takes into account Michaelis-Menten-elimination kinetics of ethanol as well as kinetics of acetaldehyde and acetate, which are defined by first order processes. The metabolite-model adequately describes the ethanol and acetate concentration courses. In fact, the observed ethanol concentrations are so close to the model-predicted values, that the metabolite-model allows an evaluation of half-life-times of acetaldehyde and acetate. The analyses of ethanol infusion studies showed, that there are no sex differences in parameters of ethanol elimination: Maximal elimination velocity Vmax was 3.41 +/- 0.61 mmol/l.h in females and 3.98 +/- 0.69 mmol/l.h in males. Michaelis-Menten-constant kM was 1.49 +/- 0.44 mmol/l and 1.69 +/- 0.88 mmol/l, respectively. In the female group, the volume of distribution of ethanol V1 was with 38.4 +/- 5.01 significant smaller than in males with 50.5 +/- 3.51. In conclusion, the new metabolite-model can be used as a basis for the investigation of the entire alcohol metabolism.

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