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[Analysis of selected constitutional and environmental factors in patients with atopic dermatitis]
Insights
Infant feeding type and family history significantly impact atopic dermatitis onset and severity. Early or formula feeding and parental atopy increase risk, while longer breastfeeding delays symptoms.
Area of Science:
- Pediatric Dermatology
- Immunology
- Environmental Health
Context:
- Atopic dermatitis (AD) is a chronic inflammatory skin condition affecting many children.
- Understanding etiological factors is crucial for prevention and management.
Purpose:
- To investigate the influence of infant feeding practices and constitutional factors on atopic dermatitis development and clinical course.
- To analyze the role of environmental allergens in AD exacerbation.
Summary:
- Retrospective analysis of 156 children with AD revealed that infant feeding type correlates with symptom onset.
- Brief breastfeeding (≤2 months) or cow's milk formula feeding was associated with earlier AD onset.
- Environmental factors like house dust, animal dander, and plant antigens exacerbated skin changes, confirmed by positive allergy tests.
- A significant constitutional factor was a family history of atopic diseases, present in 87.2% of cases.
Impact:
- Findings highlight the importance of breastfeeding duration in potentially delaying AD onset.
- Identifies specific environmental allergens that trigger AD symptoms, aiding in avoidance strategies.
- Emphasizes the strong genetic predisposition to atopic dermatitis, with familial history being a key risk factor.
Abstract:
In 156 children and adolescents with atopic dermatitis retrospective analysis was carried out for establishing the effect of constitutional and environmental factors on the process of development and clinical course of this disease. It was demonstrated that the type of feeding during infancy was related to the beginning of the first symptoms. The onset of atopic dermatitis was earliest and most frequent in children with a history of only brief breast-feeding (up to 2 months) or fed with cow milk formulas since birth. Breast-feeding during 2-6 months delayed the onset of atopic dermatitis by about 2 months in relation to the former group. The effect of environmental factors manifested itself also as exacerbation of skin changes after contact with house dust, animal hairs, feathers and other antigens (fish food, contact with plants). At the same time positive results were observed of point tests with these allergens. A significant effect of the constitutional factor on the development of atopic dermatitis included familial occurrence of atopic diseases (mostly atopic dermatitis). Only 12.8% of the studied children had no family history of atopy.