Vitamin D

Researchers at the University of California San Diego School of Medicine have been investigating a peptide called cathelicidin, which is protective against bacteria such as staphylococcus aureus which often infects eczematous skin.

It been shown that defects in the immune system of those with eczema interfere with the skin’s ability to produce this peptide and in many skin diseases, including eczema, a deficiency of cathelicidin correlates with increased infection.

The study, led by Professor Richard Gallo at the UCSD School of Medicine, found that use of oral vitamin D dramatically increases cathelicidin production in the skin of patients with atopic dermatitis.
However, the researchers caution that this was a small study and that further research is needed to evaluate the long-term effects of vitamin D supplementation.

Journal of Allergy & Clinical Immunology, October 3rd 2008

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