PMID: 6396985Dec 1, 1984Paper

Metabolic aspects of alcoholic liver damage: 1984/5 update. 1. Epidemiology and alcohol metabolism

Zeitschrift für Gastroenterologie
H K Seitz

Abstract

In western industrialized countries ethanol is an important etiologic factor in the development of cirrhosis of the liver. Metabolic, immunologic and physico-chemical alterations of the hepatocyte due to ethanol are involved in the pathogenesis of alcoholic liver disease. However, the mechanisms by which ethanol damages the liver are far from clear. During the last two decades, the effect of ethanol on multiple biochemical pathways of the hepatocyte has been investigated intensively. The present paper is focusing on the metabolic aspects of alcoholic liver disease. In the first part of the review, special emphasis has been led on the metabolites of ethanol oxidation, while in the second part microsomal enzyme induction due to alcohol has been discussed. More than 90% of ethanol metabolism takes place in the liver via cytoplasmic alcoholdehydrogenase (ADH) and via a microsomal ethanol oxidizing system (MEOS). The products of these reactions are reduced nicotinadenine dinucleotide phosphate (NADH), acetaldehyde and acetate. NADH alters the redox state of the liver cell favouring all reductive processes. This shift in metabolic pathways results in hyperlactacidaemia, lactacidosis, ketosis and hyperuricaemia. Disturbances of the ca...Continue Reading

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