Renal function in children with [beta]-thalassemia major and thalassemia intermedia

In [beta]-thalassemia, profound anemia and severe hemosiderosis cause functional and physiological abnormalities in various organ systems. In recent years, there have been few published studies demonstrating proteinuria, aminoaciduria, low urine osmolality, and excess secretion of the tubular damage...

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Bibliographic Details
Published in:Pediatric nephrology (Berlin, West) West), 2008-10, Vol.23 (10), p.1847
Main Authors: Smolkin, Vladislav, Halevy, Raphael, Levin, Carina, Mines, Miguel, Sakran, Waheeb, Ilia, Katzap, Koren, Ariel
Format: Article
Language:English
Subjects:
Anemia
Blood
Blood diseases
Blood transfusions
Creatinine
Electrolytes
Iron
Patients
Pediatrics
Physiology
Potassium
Uric acid
Urine
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Summary:In [beta]-thalassemia, profound anemia and severe hemosiderosis cause functional and physiological abnormalities in various organ systems. In recent years, there have been few published studies demonstrating proteinuria, aminoaciduria, low urine osmolality, and excess secretion of the tubular damage markers, such as urinary N-acetyl-D-glucosaminidase (UNAG) and [beta]2 microglobulin, in patients with thalassemia. The object of this study was to analyze renal tubular and glomerular function in pediatric patients with [beta]-thalassemia and to correlate the renal findings to iron overload. Thirty-seven patients with [beta]-thalassemia major and 11 with thalassemia intermedia were studied. Twelve children without iron metabolism disorders or renal diseases served as a control group. No difference in blood urea nitrogen (BUN), serum creatinine, creatinine clearance, electrolytes, fractional excretion of sodium and potassium, and tubular phosphorus reabsorption was found. Serum uric acid was equal in the two groups, but its urine excretion was significantly higher in the thalassemic group. UNAG and UNAG to creatinine ratio (UNAG/CR) were elevated in all patients with thalassemia compared with the control group (p
ISSN:0931-041X
1432-198X
DOI:10.1007/s00467-008-0897-8