Journal
NUTRIENTS
Volume 13, Issue 5, Pages -Publisher
MDPI
DOI: 10.3390/nu13051682
Keywords
atopic dermatitis; dysbiosis; food allergy; gut; infants; microbiota; skin; 16S rRNA sequencing
Categories
Funding
- National Science Centre, Poland [2017/25/B/NZ5/00141]
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This study found a relationship between gut and skin microbiota in patients with allergies, especially in terms of bacterial community structure and allergy phenotypes. Different clinical conditions were associated with characteristic bacterial taxa in the skin and gut microbiota, and while infants with allergies and healthy infants showed similar alpha-diversity in their microbiota, differences in beta-diversity and bacterial species abundance were observed. Positive correlations were found between certain bacterial taxa in skin and fecal samples, which may serve as indicators of the host's allergic state.
The gut microbiota in patients with food allergy, and the skin microbiota in atopic dermatitis patients differ from those of healthy people. We hypothesize that relationships may exist between gut and skin microbiota in patients with allergies. The aim of this study was to determine the possible relationship between gut and skin microbiota in patients with allergies, hence simultaneous analysis of the two compartments of microbiota was performed in infants with and without allergic symptoms. Fifty-nine infants with food allergy and/or atopic dermatitis and 28 healthy children were enrolled in the study. The skin and gut microbiota were evaluated using 16S rRNA gene amplicon sequencing. No significant differences in the alpha-diversity of dermal or fecal microbiota were observed between allergic and non-allergic infants; however, a significant relationship was found between bacterial community structure and allergy phenotypes, especially in the fecal samples. Certain clinical conditions were associated with characteristic bacterial taxa in the skin and gut microbiota. Positive correlations were found between skin and fecal samples in the abundance of Gemella among allergic infants, and Lactobacillus and Bacteroides among healthy infants. Although infants with allergies and healthy infants demonstrate microbiota with similar alpha-diversity, some differences in beta-diversity and bacterial species abundance can be seen, which may depend on the phenotype of the allergy. For some organisms, their abundance in skin and feces samples may be correlated, and these correlations might serve as indicators of the host's allergic state.
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