Emollient use alters skin barrier and microbes in infants at risk for developing atopic dermatitis

PloS One
Martin GlatzHeidi H Kong

Abstract

Emollients are a mainstay of treatment in atopic dermatitis (AD), a disease distinguished by skin bacterial dysbiosis. However, changes in skin microbiota when emollients are used as a potential AD preventative measure in infants remain incompletely characterized. We compared skin barrier parameters, AD development, and bacterial 16S ribosomal RNA gene sequences of cheek, dorsal and volar forearm samples from 6-month-old infants with a family history of atopy randomized to receive emollients (n = 11) or no emollients (controls, n = 12). The emollient group had a lower skin pH than the control group. The number of bacterial taxa in the emollient group was higher than in the control group at all sites. The Streptococcus salivarius proportion was higher in the emollient versus control groups at all sites. S. salivarius proportion appeared higher in infants without AD compared to infants with AD. A decrease in S. salivarius abundance was further identified in a separate larger population of older children demonstrating an inverse correlation between AD severity at sampling sites and S. salivarius proportions. The decreased skin pH and the increased proportion of S. salivarius after long-term emollient use in infants at risk for dev...Continue Reading

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Methods Mentioned

BETA
PCR
16S
biopsies
16S sequencing

Clinical Trials Mentioned

ISRCTN84854178

Software Mentioned

mothur
AMOVA
R
UCHIME
pplacer
SILVA

Related Concepts

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Atopic Dermatitis

Atopic dermatitis is a chronic inflammatory genetically determined disease of the skin marked by increased ability to form reagin (IgE), with increased susceptibility to allergic rhinitis and asthma, and hereditary disposition to a lowered threshold for pruritus. Discover the latest research on atopic dermatitis here.

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