Abstract
Background: There are no good biomarkers to predict renal parenchymal involvement in children with urinary tract infection (UTI).Methods: Children (N = 73) younger than 5 years with UTI were enrolled. Urinary levels of 8-hydroxy-2′-deoxyguanosine (8-oxodG) and total antioxidant capacity (TAC) were checked as markers of oxidative stress and antioxidant capacity, respectively. Tc99m-dimercaptosuccinic acid (DMSA) renal scintigraphy was used to find evidence of renal involvement.Results: Patients with positive DMSA findings had higher levels of urinary 8-oxodG (p = 0.003) and higher urinary TAC (p = 0.001) than patients with normal DMSA findings.Conclusions: High level of urinary 8-oxodG may be a risk factor of severe renal damage.
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