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Urinary leukotriene E4 correlates with severity of atopic dermatitis in children

K L E Hon1, T F Leung, K C Ma

  • 1Department of Paediatrics, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, Hong Kong SAR, China. ehon@hotmail.com

Clinical and Experimental Dermatology
|April 30, 2004
PubMed

Insights

Urinary Leukotriene E4 (LTE4) levels correlate with atopic dermatitis (AD) severity in children. This noninvasive marker may help track disease activity, complementing existing clinical scores for better management of pediatric AD.

Area of Science:

  • Pediatric Dermatology
  • Biomarker Research
  • Immunology

Background:

  • Leukotriene E4 (LTE4) is elevated in adults with atopic dermatitis (AD).
  • A noninvasive biomarker is needed to assess disease activity in pediatric AD.
  • Urinary LTE4 may serve as a potential noninvasive marker for AD severity.

Purpose of the Study:

  • To evaluate the correlation between urinary LTE4 levels and clinical indices of disease activity in children with AD.
  • To assess the utility of urinary LTE4 as a noninvasive marker for pediatric atopic dermatitis.

Main Methods:

  • 126 children with AD and 45 controls were recruited.
  • Urinary LTE4 concentration was measured using competitive enzyme immunoassay.
  • Disease severity was assessed using the SCORing Atopic Dermatitis (SCORAD) index and Nottingham Eczema Severity Score (NESS).

Main Results:

  • Urinary LTE4 concentrations were significantly higher in children with AD compared to controls (P < 0.0001).
  • Urinary LTE4 correlated significantly with overall SCORAD score and its components (extent and intensity).
  • Higher urinary LTE4 levels were observed in moderate-to-severe AD cases compared to mild AD (P = 0.049).

Conclusions:

  • Urinary LTE4 is a potential noninvasive biomarker for assessing AD severity in children.
  • LTE4 measurement may supplement the SCORAD index for monitoring longitudinal changes in pediatric AD.
  • Further research is needed to determine the clinical utility of urinary LTE4 assays in routine practice.

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