Endocrine Abstracts

Introduction: Patients with transfusion-dependent β-thalassemia (TDT) frequently exhibit elevated urinary calcium excretion, contributing to kidney stone formation and osteoporosis. The underlying mechanism of hypercalciuria in β-thalassemia remains elusive, with FGF23 playing a potential role. FGF23, a bone-derived hormone, primarily acts on the kidneys by inhibiting phosphate reabsorption in the proximal tubules while enhancing calcium uptake in the distal tubules....