Graphical Abstract
Abstract
Background. Dent’s disease (DD) is a rare X-linked recessive tubulopathy characterized by low molecular weight proteinuria, hypercalciuria, nephrocalcinosis/nephrolithiasis and chronic kidney disease. With this manuscript, we reported three patients diagnosed as DD in our department in the last 10 years and thereby described the genetics, pathophysiology, clinical presentation, course and management of the disease.
Cases. The first case was a male newborn who was consulted to our department after medullary nephrocalcinosis was detected. The second case was a 4-year-old boy who was treated with a diagnosis of urinary tract infection but was found to have proteinuria. Our last case was an 11-month-old male infant who was being followed up for recurrent urinary tract infection and who had millimetric crystalloids in the renal collecting system. Proteinuria and hypercalciuria were present in all cases. Variants were observed in the CLCN5 gene for the first two cases (c.1852G>A and c.1557+1G>T, respectively) and OCRL gene (c.952C>T) for the last case. All patients were recommended oral hydration and a low-salt diet, and hydrochlorothiazide and enalapril were started. No deterioration in kidney function was observed in any patient.
Conclusion. DD is a disease that shows different phenotypes even among individuals with mutations in the same gene. Therefore, it should be considered in all patients with hypercalciuria, proteinuria, nephrolithiasis or nephrocalcinosis with/without proximal tubular dysfunction especially in the early childhood period. Classical treatments for hypercalciuria should be utilized, and a patient-based treatment plan should be drawn especially for proteinuria.
Keywords: chronic kidney disease, hypercalciuria, nephrocalcinosis, nephrolithiasis, proteinuria
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Copyright © 2024 The Author(s). This is an open access article distributed under the Creative Commons Attribution License (CC BY), which permits unrestricted use, distribution, and reproduction in any medium or format, provided the original work is properly cited.
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