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  • Title: [Influence of pyridoxal phosphate in measuring aminotransferases activities in patients with viral hepatitis].
    Author: Férard G, Imbert-Bismut F, Messous D, Piton A, Abella A, Burnat P, Hainque B, Glasser N, Lessinger JM.
    Journal: Ann Biol Clin (Paris); 2004; 62(6):717-20. PubMed ID: 15563433.
    Abstract:
    Effect of a pyridoxal phosphate (PP) supplementation of reagents used for ALT and AST measurement was studied in serum of 20 patients suffering from viral hepatitis. Measurements of enzyme activities were carried out at 37 degrees C, using an automate (AU 600, Olympus). Significant differences (p < 0.0001) were observed both for ALT and AST, meanwhile they were more marked for ALT than for AST. This difference was associated with a strong interindividual variability regarding PP activation effect on ALT. In conclusion, aminotransferase measurements should be carried out with a reagent supplemented with PP, when the enzyme activity is used to evaluate a cytolysis. The same recommendation applies when ALT results are integrated into various combinations developed for the evaluation of liver status.
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