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  • Title: Dietary chloride as a determinant of disordered calcium metabolism in salt-dependent hypertension.
    Author: Kurtz TW, Morris RC.
    Journal: Life Sci; 1985 Mar 11; 36(10):921-9. PubMed ID: 2983159.
    Abstract:
    In rats given desoxycorticosterone (DOC), the recently reported finding that a normal amount of dietary sodium chloride (NaCl) induces hypertension but an equimolar amount of sodium bicarbonate (NaHCO3) does not, might be a consequence of the differing effects of the two sodium salts on the metabolism of calcium. In accord with this hypothesis, we have found that, in uninephrectomized rats given DOC: Dietary NaCl induces persisting hypercalciuria and hypertension whereas an approximately equimolar amount of dietary NaHCO3 induces neither hypercalciuria nor hypertension. The urinary excretion of calcium becomes greater in rats given NaCl than in those given NaHCO3, before their blood pressures become different. Replacing dietary NaCl with a near equimolar amount of dietary NaHCO3 corrects both the hypercalciuria and the hypertension initially induced by NaCl.
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