In view of the universal metabolic importance of zinc in the organism, it was the purpose of the present work to determine the concentrations of zinc in serum, of amino acids and ammonia in plasma of patients with liver cirrhosis, and investigate that correlations might exist between these substances. The study involved 18 patients with decompensated liver cirrhosis without coma and eleven with coma. The subjects with normal livers were used as controls. While confirming known data (reduced zinc levels, imbalance of plasma amino acids, hyperammonaemia in chronic liver diseases) the findings also revealed correlations between the above substances. A negative correlations existed between zinc and ammonia. Decreases in zinc serum levels were accompanied by increases in plasma ammonia concentrations in hepatic coma (p less than 0.05). Plasma levels of amino acids did not correlate with serum zinc concentrations.
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