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Published on: June 4, 2017
[Clinical epidemiologic features in children allergic to Dermatophagoides pteronyssinus]
Fang Ye1, Jian-feng Liang, Jin-tu Lou
1The Children's Hospital Affiliated to Zhejiang University School of Medicine, Hangzhou 310003, China.
Insights
Dermatophagoides pteronyssinus mites are a common cause of allergic diseases in children in Hangzhou, affecting over 41% of those studied. Allergic rhinitis and asthma were the most frequent conditions observed.
Area of Science:
- Allergen research
- Pediatric allergy
- Immunology
Context:
- Allergic diseases pose a significant health burden in children.
- Dust mites, particularly Dermatophagoides pteronyssinus, are known indoor allergens.
- Understanding regional allergen prevalence is crucial for effective management.
Purpose:
- To determine the prevalence of Dermatophagoides pteronyssinus sensitization in children with allergic diseases in Hangzhou.
- To analyze the clinical and epidemiological characteristics of sensitized children.
Summary:
- A study of 9,422 children with suspected allergic diseases in Hangzhou found a 41.2% prevalence of Dermatophagoides pteronyssinus sensitization.
- Allergic rhinitis (47.8%) and asthma (18.5%) were the most common manifestations.
- Higher prevalence was noted in children over 3 years old, in males, and during summer and autumn months.
Impact:
- Highlights Dermatophagoides pteronyssinus as a key allergen in pediatric allergic diseases in the Hangzhou region.
- Informs public health strategies and clinical practice for managing childhood allergies.
- Provides data for targeted allergen avoidance and immunotherapy.
Objective:
To investigate the prevalence of Dermatophagoides pteronyssinus in children allergic diseases in Hangzhou and its surrounding areas.
Methods:
Western blotting was used to detect the serum antibody for 9 422 children who were admitted due to clinically suspected allergic diseases. Clinical epidemiological features were analyzed for those with total IgE>100 IU/ml and Dermatophagoides pteronyssinus-specific IgE > or = 0.35 IU/ml.
Results:
The prevalence of Dermatophagoides pteronyssinus in children with allergic diseases was 41.2% (3 878/9 422). The most common symptoms were allergic rhinitis [47.8%(1852/3 878)] and asthma [18.5%(716/3 878)]. The allergic diseases were most prevalent in July, August and October. The diseases were more prevalent in children over 3 years old and above. more in males [68.8% (2668/3878)] than females [31.2% (1210/3878)].
Conclusion:
Data suggest that Dermatophagoides pteronyssinus is an important allergen causing allergic diseases in children in Hangzhou.
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