Clinical characteristics and genetic variation in atopic dermatitis patients with and without allergic contact dermatitis

Solam Lee, Hye young Wang, Eunjung Kim, Hyun Jee Hwang, Eunhee Choi, Hyeyoung Lee, Eung Ho Choi

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Background: In patients with atopic dermatitis (AD), the risk of contact sensitization may be higher as the disrupted skin barrier may increase the penetration of contact allergens. Therefore, it is necessary to screen for concurrent allergic contact dermatitis (ACD) in AD patients. Objectives: To identify the clinical characteristics and genetic variation in AD patients with concurrent ACD. Materials & methods: In total, 281 AD subjects who underwent patch testing were included. Subjects with a positive result were classified as “AD with ACD”, while the others were classified as “AD only”. Clinical characteristics and prevalence of genetic variants (FLG 3321delA, FLG K4022X, KLK7, SPINK5, DEFB1, KDR, IL5RA, IL9, and IL12RB1) were compared between the two groups. Results: Seventy-one subjects (25.3%) were found to have AD and ACD. Female sex, older age, late onset, self-reported personal or family history ofACD, and presence of prurigo nodularis were associated with concurrent ACD in AD patients. Age was useful for predicting concurrent ACD based on the receiver operating characteristic curve. However, no differences in the frequency of genetic variants were identified between the two groups. Conclusion: A personal or family history of ACD, late onset, and prurigo nodularis support a suspicion of concurrentACD, although these correlations were less apparent after correcting for age and sex. Patch testing for AD in males >20 years and females >14 years may aid diagnosis of concurrent ACD with high sensitivity and specificity.

Original languageEnglish
Pages (from-to)637-643
Number of pages7
JournalEuropean Journal of Dermatology
Volume28
Issue number5
DOIs
Publication statusPublished - 2018 Sep 1

Bibliographical note

Funding Information:
Disclosure. Financial support: this research was supported by a grant from the Korea Healthcare Technology R&D Project through the Korean Health Industry Development Institute (KHIDI), funded by the Ministry of Health & Welfare, Korea (Grant No: HI14C2687). Conflicts of interest: none.

All Science Journal Classification (ASJC) codes

  • Dermatology

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