Objective: To find out if cardiovascular alterations are present in pediatric patients with X-linked hypophosphatemia (XLH).
Study Design: Multicentre prospective clinical study on pediatric patients included in the RenalTube database ( www.renaltube.
Familial hypomagnesemia with hypercalciuria and nephrocalcinosis is an autosomal recessive tubular disorder characterized by excessive renal magnesium and calcium excretion and chronic kidney failure. This rare disease is caused by mutations in the CLDN16 and CLDN19 genes. These genes encode the tight junction proteins claudin-16 and claudin-19, respectively, which regulate the paracellular ion reabsorption in the kidney.
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