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Systemic Oxidative Stress, As Measured by Urinary Allantoin and F(2)-isoprostanes, is Not Increased in Down Syndrome

Overview
Journal Ann Epidemiol
Publisher Elsevier
Specialty Public Health
Date 2012 Oct 16
PMID 23063134
Citations 5
Authors
Affiliations
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Abstract

Purpose: Oxidative stress has been implicated in Down syndrome (DS) pathology. This study compares DS individuals and controls on their urinary levels of allantoin and 2,3-dinor-iPF2α-III; these biomarkers have been previously validated in a clinical model of oxidative stress.

Methods: Urine samples were collected from 48 individuals with DS and 130 controls. Biomarkers were assayed by ultraperformance liquid chromatography-tandem mass spectrometry, normalized by urinary creatinine concentration.

Results: After adjusting for age and gender, mean allantoin levels were lower among DS individuals versus controls (P = .04). The adjusted mean levels of 2,3-dinor-iPF2α-III were similar in DS individuals and controls (P = .7).

Conclusions: Our results do not support the hypothesis that DS individuals have chronic systemic oxidative stress.

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