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Development of a Neonatal Piglet Acute Lung Injury Model Recreating the Early Environment of Preterm Infant Lungs
Published on: October 31, 2025
The development of lung damage in asthma is confined to infancy and early childhood
1North Middlesex University Hospital, Sterling Way, London, N18 IQX, UK. behjati@doctors.org.uk
Insights
Asthma can cause structural lung damage, impairing lung function. Pathological changes occur in infancy and early childhood, offering a critical window for intervention to modify the disease course.
Area of Science:
- Pediatric Pulmonology
- Respiratory Medicine
- Clinical Epidemiology
Background:
- Asthma is linked to structural lung damage and impaired lung function.
- The progression and onset of asthma-related lung damage are not fully understood.
- Longitudinal studies are crucial for understanding disease trajectory.
Purpose of the Study:
- To investigate the timing and progression of asthma-related lung function impairment.
- To identify the critical period for preventing asthma-related lung damage.
- To inform early intervention strategies for asthma.
Main Methods:
- Analysis of prospective, longitudinal asthma studies.
- Comparison of data from the Melbourne, Dunedin, and Tucson asthma studies.
- Evaluation of lung function changes over time in pediatric populations.
Main Results:
- Asthma-associated pathological lung changes manifest in infancy and early childhood.
- Lung function impairment in asthma appears to originate in early life.
- The progression of lung damage may differ from chronic obstructive pulmonary disease.
Conclusions:
- The development of asthma-related lung damage is concentrated in early life.
- Intervention during infancy and early childhood is key to preventing lung damage.
- Early life interventions can potentially modify the long-term course of asthma.
Abstract:
In addition to its symptomatic impact, asthma may be associated with structural lung damage, which is reflected in impairment of lung function. An important and to some extent neglected aspect of the adverse effects of asthma on lung function has been their course: when do they first occur, and how do they progress? For example, does lung function progressively deteriorate, as it does in chronic obstructive pulmonary disease? These questions have in part been addressed by a number of prospective, longitudinal studies of asthma, including the Melbourne Asthma study (Australia), the Dunedin (New Zealand) and the Tucson study (Arizona, USA). Based on these three studies, I propose that the pathological changes which affect lung function occur in infancy and early childhood. The window of opportunity for preventing the development of these changes, and thus modify the course of the disease, is confined to this early period of life.
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