Acetaldehyde oxidation by hepatic mitochondria: decrease after chronic ethanol consumption

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Science  29 Aug 1975:
Vol. 189, Issue 4204, pp. 727-729
DOI: 10.1126/science.168641


Prolonged consumption of ethanol significantly reduces the capacity of rat liver mitochondria to oxidize acetaldehyde. This is associated with decreased mitochondrial respiration with acetaldehyde as substrate. The reduced ability of mitochondria to metabolize acetaldehyde may explain the high levels of acetaldehyde in the blood of alcoholics, which in turn could promote the perpetuation of liver injury.