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The oxidation of ethanol by isolated liver cells from starved rats is limited by the rate of removal of reducing equivalents generated in the cytosol by alcohol dehydrogenase. Evidence is presented suggesting that, in these cells, transfer of reducing equivalents from the cytosol to the mitochondria is regulated by the intracellular concentrations of the intermediates of the malate-aspartate and glycerol 3-phosphate cycles, as well as by flux through the respiratory chain. In liver cells isolated from fed rats, the availability of substrate increased the cell content of intermediates of the hydrogen-transfer cycles, and enhanced ethanol uptake. Under these conditions, ethanol consumption is limited by the availability of ADP for oxidative phosphorylation.
Meijer et al. (1975) studied this question.