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  • Title: [Effect of alcohol on the metabolic conversion of 14C erucic acid in the liver of rats receiving rapeseed or peanut oil].
    Author: Lecerf J, Bézard J.
    Journal: J Physiol (Paris); 1975; 70(4):493-503. PubMed ID: 1221113.
    Abstract:
    The effects of addition of ethanol to diets containing rapeseed or ground nut oil on the metabolic conversions of 14 14C erucic and 9-10 3H oleic acid were studied in the rat liver. 1. Whatever the diet more 14C than 3H radioactivity was recovered in liver lipids 2 and 19 hours after injection of labelled fatty acids. Ethanol has little effect on this incorporation. 2. Only small amounts of 3H oleic acid were converted. 3. In all cases, the metabolic conversion of erucic acid was identical: the main part of 14C was not recovered as erucic acid but was present in other monounsaturated fatty acids n-9: oleic acid (18 : 1), which was the most labelled acid, 16 : 1, 20 : 1 and nervonic acid (24 : 1). 4. The amount of erucic acid converted to shorter chain fatty acids was unchanged by addition of ethanol but the alcohol increased the proportion of 14C radioactivity recovered as nervonic acid. This latter effect was opposite to the effect of rapeseed oil diet, which consisted in a decrease in the conversion of erucic to nervonic acid. 5. A high amount of 14C radioactivity was recovered in the F.F.A. fraction of the liver as an unknown compound (13 and 80% of 14C radioactivity respectively after 2 and 19 h.) Its identification is presently under investigation.
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