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Effect of L-carnitine on ethanol and acetate plasma levels after oral administration of ethanol in humans



Effect of L-carnitine on ethanol and acetate plasma levels after oral administration of ethanol in humans



Alcoholism Clinical and Experimental Research 12(5): 653-654



In a randomized double-blind, cross-over experiment, 0.5 g/kg of ethanol in the form of white wine and 3 g of L-carnitine by intravenous infusion were administered to 15 healthy volunteers. Ethanol and acetate plasma levels and the urine concentrations of acetylcarnitine were determined. Administration of ethanol induced a significant increase of both plasma ethanol and acetate, lasting 6-8 hr. The concomitant administration of carnitine resulted in a significant decrease of plasma acetate, whereas plasma ethanol levels remained unmodified. Urinary acetylcarnitine content significantly increased following administration of ethanol plus carnitine, but not when L-carnitine alone was administered. The resulting conclusion is that administered L-carnitine might trap excess acetyls derived both from free acetate, formed by ethanol oxidation, and from acetyl coenzyme A, accumulated as a result of the ethanol-induced decrease in the Krebs cycle flux.

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Accession: 039902424

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PMID: 3067610


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