Abstract
Quinone derivatives, such as 2, 3-dimethoxy-5-methy1-6-decapreny1-1, 4-benzoquinone (ubidecarenone, coenzyme Q10, CoQ10), 4, 5-dihydro-4, 5-dioxo-1H-pyrrolo [2, 3-f] quinoline-2, 7, 9-tricarboxylic acid (pyrroloquinoline quinone, PQQ) and 6-(10-hydroxydecy1)-2, 3-dimethoxy-5-methy1-1, 4-benzoquinone (idebenone), significantly inhibited rise of acetaldehyde concentration in blood and liver of rats following ethanol ingestion.Acetaldehyde concentrations decreased in vitro with incubation with 1, 4-benzoquinone or PQQ solution at 40°C. Low acetaldehyde concentrations following ethanol ingestion might be due to PQQ-accelerated oxidation of acetaldehyde.
