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Allergy Asthma Immunol Res. 2013 Jul;5(4):207-10. doi: 10.4168/aair.2013.5.4.207. Epub 2013 Mar 13.

Correlation between serum vitamin d level and the severity of atopic dermatitis associated with food sensitization.

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1
Medical Research Institute, Seoul Medical Center, Seoul, Korea.

Abstract

PURPOSE:

A growing body of literature has linked vitamin D deficiency with allergic diseases, particularly atopic dermatitis (AD). In this study, we investigated the association between serum vitamin D status and the clinical manifestation of AD. We also developed an analytical method for the simultaneous determination of 25-hydroxy vitamin D3 (25(OH)D3), using liquid chromatography (LC) coupled with tandem mass spectrometry (MS/MS).

METHODS:

This study included 157 patients (79 males and 78 females) with AD, aged 4 months to 56 years. We evaluated disease severity using the SCORing Atopic Dermatitis (SCORAD) index. Serum levels of 25(OH)D3 were determined by LC coupled with MS/MS. Total IgE and specific IgE levels were assayed using the immunoCAP system. ANOVA was used for statistical evaluation.

RESULTS:

We found mild, moderate, and severe AD in 30 (11.1%), 87 (55.4%), and 40 (25.5%) patients, respectively. There was no significant correlation between serum levels of 25(OH)D3 and AD severity. However, among the 36 patients with food sensitization, the mean±SD serum levels of 25(OH)D3 were significantly higher (P<0.05) in patients with mild disease (21.2±5.18 ng/mL) compared with the levels in patients with moderate (17.9±4.02 ng/mL) or severe AD (13.3±5.11 ng/mL) disease.

CONCLUSIONS:

These results suggest that vitamin D deficiency is related to the severity of AD associated with food sensitization. Thus, these data suggest a role for vitamin D in a select group of AD patients.

KEYWORDS:

Atopic dermatitis; food allergy; vitamin D

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