Increased urinary n-acetyl-beta-d-glucosaminidase activity in children with hydronephrosis



Document title: Increased urinary n-acetyl-beta-d-glucosaminidase activity in children with hydronephrosis
Journal: International braz j urol
Database: PERIÓDICA
System number: 000296990
ISSN: 1677-5538
Authors: 1

Institutions: 1Charles University, Department of Pediatrics, Hradec Králové. República Checa
Year:
Season: Ene-Feb
Volumen: 33
Number: 1
Pages: 80-86
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Caso clínico, analítico
English abstract OBJECTIVE: Hydronephrosis leads to deterioration of renal function. As urinary N-acetyl-beta-D-glucosaminidase (U-NAG) activity is considered a sensitive marker of renal tubular impairment, our aim was to measure U-NAG in children with hydronephrosis and to look for a relationship among selected clinical parameters. MATERIALS AND METHODS: We studied 31 children (22 boys and 9 girls, mean age 2.3 ± 2.5 years) with hydronephrosis grade 1-4 that had U-NAG/creatinine ratio (U-NAG/Cr) measured. RESULTS: The U-NAG/Cr was significantly higher in patients with hydronephrosis compared to reference data (p = 0.002). There was no difference in U-NAG/Cr between children with unilateral and bilateral hydronephrosis (p = 0.51). There was no significant difference in U-NAG/Cr between children with grades 1-3 (pooled data) and grade 4, respectively (p = 0.89). There was no correlation between U-NAG/Cr and the grade of hydronephrosis (r = 0.01). CONCLUSIONS: U-NAG/Cr is increased in children with hydronephrosis grade 1-4, and there is no relationship with the grade of hydronephrosis. U-NAG is a useful marker of renal tubular dysfunction, however its relationship with the degree of kidney damage in patients with hydronephrosis should be considered as doubtful
Disciplines: Medicina
Keyword: Cirugía,
Nefrología,
Pediatría,
Hidronefrosis,
Niños,
Acetilglucosaminidasa
Keyword: Medicine,
Nephrology,
Pediatrics,
Surgery,
Hydronephrosis,
Children,
acethyl-glucosaminidase
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