Atopic Dermatitis (AD) Clinical Trial
Official title:
Skin Barrier in Childhood Atopic Dermatitis With and Without Food Allergy (ADRN-10)
This is a prospective, single center, clinical mechanistic pilot clinical research study. Participants will not receive any investigational agent. The investigators will examine whether children with atopic dermatitis (AD) and food allergy have a different skin barrier, microbiome, epidermal transcriptome, and epidermal lipid composition than children with AD and no food allergy and non-atopic (NA) children. Participation involves a single study visit.
Atopic Dermatitis (AD) is a chronic inflammatory skin disorder in which the skin becomes
extremely itchy and is susceptible to recurrent skin infections. AD is thought to occur from
a combination of immunological, genetic, and environmental factors.
Those with atopic dermatitis (AD) often have food allergy and Staphylococcus aureus (S.
aureus) colonization of the skin. There is evidence suggesting that skin barrier dysfunction,
measurable as increased transepidermal water loss (TEWL), is a predisposing factor to food
sensitization and food allergy from epicutaneous penetration of environmental food allergens.
Furthermore, the investigators for this study have identified that AD children with food
allergy, especially peanut allergy, are colonized with Staphylococcus aureus. However, only
half (50%) of children with AD have food allergy or S. aureus colonization, suggesting there
are other factors accounting for food allergy. There have been no previous studies of TEWL
or, microbial or molecular profiling of the skin in those with AD prone to food allergy
versus AD without food allergy.
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