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  • Title: [Animal experiment studies on the changes in lipid and protein metabolism in L-carnitine-supplemented total parenteral nutrition].
    Author: Böhles H, Segerer H, Fekl W, Stehr K.
    Journal: Infusionsther Klin Ernahr; 1983 Feb; 10(1):24-31. PubMed ID: 6404814.
    Abstract:
    The influence of i.v. L-carnitine on parameters of lipid- and nitrogen metabolism was studied during total parenteral nutrition of mini pigs (x: 4077; n = 9). The infusion protocol was divided into isocaloric and isonitrogenous 48-hour-periods. Amino acids (3 g/kg/day) were administered throughout all three periods. 140 Cal/kg/day were given as non-protein calories, consisting only of glucose during period 1. During periods 2 and 3 an amount of glucose calorically equivalent to 4 g fat/kg/day was substituted with a lipid emulsion. In period 3, L-carnitine (1,5 mg/kg/day) was added. During the entire regime key parameters of fat and nitrogen metabolism were determined. During all three periods indirect calorimetry was performed and the respiratory quotient calculated. The results demonstrate a more effective lipolysis and oxydation of fatty acids during L-carnitine supplementation. This results in an increased energy gain from exogenously administered fat and a distinct improvement of nitrogen balance.
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