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  • Title: Excretion of inhibitors of calcification in urine Part II. Findings in patients with chronic renal failure.
    Author: Oreopoulos DG, Walker D, Akriotis DJ, Roncari DA, Husdan H, Symvoulidis A, Deveber GA, Rapoport A, Reid DB.
    Journal: Can Med Assoc J; 1975 Apr 05; 112(7):832-4. PubMed ID: 1168092.
    Abstract:
    By means of a semiquantitative method incorporating the rachitic rat cartilage technique, the total urinary inhibitory activity with respect to calcification was compared in 11 control subjects and 20 patients with renal failure. The patients had significantly lower mean values of inhibiting units per day than did the control subjects. Both groups showed a significant positive correlation between the number of inhibiting units per day and urine volume. When urine volume was taken into account in the comparison, the numbers of inhibiting units for patients continued to be lower than the numbers for controls. These findings are consistent with the hypothesis that the increase of inhibitory activity observed in uremic serum is secondary to a decrease in excretion of the responsible factor (or factors) in the urine, and that the factor (or factors) in serum responsible for the inhibition are identical to those in the urine.
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