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[Is bronchial hypersensitivity in early childhood genetically determined?]
P Gutkowski1, K Nowacka, M Kluczek
1Samodzielnej Pracowni Pulmonologicznej Oddziału Izolacyjno-Obserwacyjnego Centrum Zdrowia Dziecka.
Insights
Familial factors contribute to bronchial hyperreactivity (BH) in infants. Parents of infants with BH showed higher rates of BH and smoking habits compared to controls, suggesting a genetic predisposition.
Area of Science:
- Pediatric Pulmonology
- Genetics
- Environmental Health
Context:
- Bronchial hyperreactivity (BH) is a condition affecting infants, often following spastic bronchitis.
- Understanding the origins of BH is crucial for early intervention and management.
- Familial occurrence suggests potential genetic or environmental influences.
Purpose:
- To investigate the familial occurrence of bronchial hyperreactivity in infants.
- To assess the prevalence of BH in parents of affected infants.
- To identify potential risk factors such as family history and smoking habits.
Summary:
- A study evaluated 47 pairs of parents of infants with BH and a control group of 19 parent pairs.
- Parents of infants with BH exhibited a significantly higher incidence of BH (p < 0.01).
- Smoking habits were more prevalent in the study group compared to controls (p < 0.01), while family history did not differ significantly.
Impact:
- Findings indicate that familial factors play a significant role in the development of bronchial hyperreactivity in early infancy.
- Highlights the importance of considering family history and environmental factors in pediatric respiratory health.
- Suggests potential genetic predispositions and the impact of parental smoking on infant BH.
Abstract:
In order to study the familial occurrence of bronchial hypereactivity (BH) the parents of infants with BH were evaluated. 47 pairs of parents of infants aged 10-33 months were studied. All infants following spastic bronchitis developed BH. All parents had bronchial reactivity assessed. All answered a questionnaire from which the following data were retrieved: family history, personal history, environmental data and smoking habits. A similar analysis was carried out on a group of 19 pairs of parents forming a control group, derived randomly from hospital personnel. In parents of children with BH a higher incidence of BH was found in comparison with the control chi 2 = 11.52; p less than 0.01). In 14 subjects a positive familial history was found. This did not differ from the control. The smoking habit was seen more often in the study group that in the control (chi 2 = 9.82; p less than 0.01). These results allow us to state that familial factors play a role in bronchial hypereactivity in early infancy.