Abstract
The aim
Violation of the epidermal barrier can lead to percutaneous sensitization to microbial products or allergens. The interaction between the yeast Malassezia and the skin's immune system contributes to skin inflammation in patients with atopic dermatitis. The aim of this study was to determine the sensitization to the molecular components of the yeast Malassezia (Mala s 5, Mala s 6, Mala s 11) in children with atopy.
Methods
The study included 333 children aged 1 to 18 with atopy, with symptoms of bronchial obstruction, allergic rhinitis, atopic dermatitis or urticaria. All patients / parents gave informed consent to participate. Spearman's rank test (ρ) was used to assess the correlation between total sIgE, specific sIgE, and age.
Results
Among 333 children with atopy, specific IgE to Mala s 5 was detected in 20.1 % children, to Mala s 6 in 64.6 %, and to the allergen Mala s 11 in 23.1 % children. The level of antibodies to Mala s 5 and Mala s 6 correlate with total serum IgE (ρ = 0.161 and ρ = 0.112, respectively). The correlation was also found between the level of specific IgE to Mala s 11 and to Mala s 6 (ρ = -0.351), and Mala s 5 and Mala s 6 (ρ = -0.490). Correlation of specific IgE and age was detected for the molecular component Mala s 6 (ρ = -0.126).
Conclusions
Sensitization to the molecular components of yeast (Mala s 5, Mala s 6, Mala s 11) was quite common among children with allergic diseases. Sensitization to Mala s 6 was most common in children. The highest values of sIgE were observed for Mala s 11 ‒ in 23.9% of patients. For future clinical trials, it is important to consider intrapersonal anatomical variations in skin microbiota, individual susceptibility, sex, age, seasonality, and ethnicity.
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