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Acidosis and Urinary Calcium Excretion: Insights from Genetic Disorders.

Alexander, R Todd; Cordat, Emmanuelle; Chambrey, Régine; Dimke, Henrik; Eladari, Dominique.
J Am Soc Nephrol; 27(12): 3511-3520, 2016 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-27468975
Metabolic acidosis is associated with increased urinary calcium excretion and related sequelae, including nephrocalcinosis and nephrolithiasis. The increased urinary calcium excretion induced by metabolic acidosis predominantly results from increased mobilization of calcium out of bone and inhibition of calcium transport processes within the renal tubule. The mechanisms whereby acid alters the integrity and stability of bone have been examined extensively in the published literature. Here, after briefly reviewing this literature, we consider the effects of acid on calcium transport in the renal tubule and then discuss why not all gene defects that cause renal tubular acidosis are associated with hypercalciuria and nephrocalcinosis.
Selo DaSilva