Interesting study that suggests that Vitamin D levels are relatively low in children with severe eczema. Whether the link between Vitamin D and eczema is a true causal link (i.e. low vitamin D levels worsen eczema) or just an association (because children with severe eczema might not have natural sunlight exposure as they are confined indoors due to their disease), is not really know. However, Dermatologists need to be aware of this finding and consider testing vitamin D levels in such children, to see if Vitamin D supplements would be required.
Correlation between serum 25-hydroxyvitamin D levels and severity of atopic dermatitis in children
- D.G. Peroni,
- G.L. Piacentini,
- E. Cametti,
- I. Chinellato,
- A.L. Boner
Summary
Background? Vitamin D deficiency could be associated with the prevalence of atopic dermatitis (AD).
Objectives? We carried out a study to see whether deficient/insufficient levels of vitamin D correlate with the severity of atopic skin disease.
Methods? Using the SCORAD index, we evaluated the severity of disease in 37 children (17 girls and 20 boys) aged between 8 months and 12 years with AD, consecutively enrolled in the study. Serum levels of 25-hydroxyvitamin D [25(OH)D] were determined by a chemiluminescent method. Specific IgE (sIgE) to Staphylococcus aureus enterotoxins and sIgE to Malassezia furfur were assayed by the ImmunoCAP system. anova and the Pearson correlation test were used for statistical evaluation.
Results? We found severe, moderate and mild AD in nine (24%), 13 (35%) and 15 (41%) children, respectively. Mean ± SD serum levels of 25(OH)D were significantly higher (P < 0·05) in patients with mild disease (36·9 ± 15·7 ng mL?1) compared with those with moderate (27·5 ± 8·3 ng mL?1) or severe AD (20·5 ± 5·9 ng mL?1). The prevalence of patients with sIgE to microbial antigens increased in relation to vitamin D deficiency and AD severity.
Conclusions? These data suggest that vitamin D deficiency may be related to the severity of AD and advocate the need for studies evaluating the use of vitamin D as a potential treatment in patients with this disease.
Article first published online: 11 APR 2011
DOI: 10.1111/j.1365-2133.2010.10147.x
© 2011 The Authors. BJD © 2011 British Association of Dermatologists
Issue
British Journal of Dermatology
Volume 164, Issue 5, pages 1078–1082, May 2011