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- W2120972334 abstract "This study describes the effects of short- and long-term ethanol treatment and withdrawal on the biosynthesis of the phospholipids phosphatidylcholine (PC) and phosphatidylethanolamine (PE) in hepatocytes isolated from rats, using isotopically labelled choline and ethanolamine as exogenous precursors. Our results demonstrate that short-term ethanol consumption increases the incorporation of exogenous polar bases into PC and PE, whereas long-term ethanol administration provokes a differential effect in both PC and PE biosynthesis via cytidine diphosphate derivatives (CDP-derivatives), decreasing PC synthesis and increasing the biosynthesis of PE. We suggest that the increased biosynthesis of PE after ethanol treatment results from changes in lipogenic substrates produced as a consequence of ethanol metabolism, whilst the specific inhibition of PC biosynthesis seems to be a consequence of alterations of enzymes involved in the CDP-choline pathway. With regard to the influence of ethanol on PE methylation to give PC, our results demonstrate that ethanol activates this pathway in short-term, as well as chronic ethanol treatment. Ethanol withdrawal returns the activity of the PC and PE pathways to control levels. The alterations in the biosynthesis of the main phospholipids, PC and PE, demonstrated in this study could be of a great physiological interest in determining the pathology of alcoholism." @default.
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- W2120972334 date "2002-03-01" @default.
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- W2120972334 title "Comparative study of the effects of short- and long-term ethanol treatment and alcohol withdrawal on phospholipid biosynthesis in rat hepatocytes" @default.
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- W2120972334 doi "https://doi.org/10.1016/s1096-4959(02)00006-4" @default.
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