Abstract
Background
Obesity is an important health issue, the prevalence of which is increasing in childhood. The aim of this study was to examine urinary renal injury markers in order to determine the renal effect of obesity and its comorbidities in a pediatric population.
Methods
Eighty-four obese children and 64 healthy control subjects were enrolled in the study. We checked their urine using N-acetyl-beta-d-glucosaminidase (NAG), neutrophil gelatinase-associated lipocalin (NGAL), kidney injury molecule-1 (KIM-1), and microalbumin as renal injury markers. Associations of renal damage markers with hypertension, an impaired glucose tolerance test, and insulin resistance were assessed.
Results
Obese individuals had higher urinary NAG and KIM-1 values compared to those of healthy controls (p = 0.027, p = 0.026). There was no difference in urinary NGAL between obese and lean subjects (p = 0.885). Urinary renal injury markers were not statistically different in the obese group when checked for impaired glucose tolerance, insulin resistance, and hypertension (p > 0.05).
Conclusions
This study shows that urinary NAG and KIM-1 could be used as a screening method for detection of early renal damage in obese children.
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We thank S. Delacroix for English editing of the manuscript.
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The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.
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Goknar, N., Oktem, F., Ozgen, I.T. et al. Determination of early urinary renal injury markers in obese children. Pediatr Nephrol 30, 139–144 (2015). https://doi.org/10.1007/s00467-014-2829-0
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DOI: https://doi.org/10.1007/s00467-014-2829-0