Urinary eosinophil-derived neurotoxin concentrations in patients with atopic dermatitis: a useful clinical marker for disease activity.

Abstract

BACKGROUND:

It has been reported that measurements of eosinophil-derived neurotoxin (EDN) may be useful for identifying eosinophil activities in allergic diseases including atopic dermatitis.

METHODS:

EDN concentrations in the urine were measured by enzyme-linked immunosorbent assay, and the number of eosinophils in the peripheral blood was counted in 30 patients with atopic dermatitis. The severity of atopic dermatitis was graded on the criteria proposed by Rajka and Langeland. The disease activity was assessed by each patient on a visual analogue scale (VAS).

RESULTS:

Urinary concentrations of EDN in patients with atopic dermatitis showed a significant positive correlation with disease severity. Urine EDN concentrations also correlated with VAS scores for itching, skin condition, overall skin symptoms and total VAS score, but not with the VAS score for skin dryness. Urinary EDN concentrations did not correlate with the number of eosinophils in the peripheral blood.

CONCLUSIONS:

The urinary EDN concentration in patients with atopic dermatitis is a useful clinical marker for monitoring disease activity.

• Authors: Tomoko Goto, Junichiro Morioka, Hiroaki Inamura, Megumi Yano, Kazumi Kodaira, Yasushi Igarashi, Shyuzo Abe, Motohiro Kurosawa
• Journal: Allergology international : official journal of the Japanese Society of Allergology (Allergol Int) Vol. 56 Issue 4 Pg. 433-8 (Dec 2007) ISSN: 1323-8930 [Print] England
• PMID: 17965582 (Publication Type: Journal Article)

Chemical References

• Biomarkers
• Eosinophil-Derived Neurotoxin

Topics

• Adolescent
• Adult
• Biomarkers (blood, urine)
• Dermatitis, Atopic (enzymology, urine)
• Eosinophil-Derived Neurotoxin (blood, urine)
• Eosinophils (enzymology, metabolism)
• Female
• Humans
• Male
• Pain Measurement
• Severity of Illness Index