Effect of Nucleotide and Nucleoside Mixture on Rats Given Total Parenteral Nutrition after 70% Hepatectomy

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Abstract
After partial hepatectomy rats were used as a model of patients with liver tumor after extensive hepatectomy. Supplementation of a nucleotide and nucleoside mixture to the total parenteral nutrition solution in rats after 70% hepatectomy resulted in earlier restoration of the nitrogen balance in the first 3 days than the solution without this supplementation. This supplementation had no unfavorable effects on the compositions of the blood and urine, and particularly the metabolites of nucleic acids such as uric acid, β-alanine, and β-aminoisobutyric acid. A suitable ratio of nucleotides plus nucleoside to amino acids was tentatively concluded to be 1:2 g N with a calorie supply of 400 kcal. (Journal of Parenteral and Enteral Nutrition 9:339-342, 1985)