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Updated: Mar 8, 2026

Development of a Neonatal Piglet Acute Lung Injury Model Recreating the Early Environment of Preterm Infant Lungs
Published on: October 31, 2025
[Methods for establishing animal model of bronchopulmonary dysplasia and their evaluation]
Zeng Xiong1, Xia Zhou, Shao-Jie Yue
1Department of Radiology, Xiangya Hospital, Central South University, Changsha 410008, China. zxalover2002@139.com.
Insights
Bronchopulmonary dysplasia (BPD) is increasing in premature infants due to improved survival rates. This review evaluates animal models for BPD research, focusing on arrested alveolar development.
Area of Science:
- Neonatal Medicine
- Respiratory Physiology
- Developmental Biology
Background:
- Improved survival rates for premature infants, particularly extremely premature and very low birth weight infants, have led to a rise in bronchopulmonary dysplasia (BPD) incidence.
- Bronchopulmonary dysplasia is a prevalent respiratory condition in premature infants, with arrested alveolar development being a key etiological factor.
- Understanding the mechanisms of arrested alveolar development and identifying interventions to promote alveolar growth are critical research priorities for BPD.
Purpose of the Study:
- To summarize and evaluate common methods for establishing animal models of BPD.
- To analyze the pathophysiological changes associated with these models.
- To provide a reference for selecting appropriate animal models in BPD research.
Main Methods:
- Review of existing literature on established BPD animal models.
- Comparative analysis of different modeling techniques.
- Evaluation of pathophysiological outcomes in various models.
Main Results:
- Several common methods for inducing BPD in animal models were identified.
- Associated pathophysiological changes, including arrested alveolar development, were detailed.
- The strengths and limitations of each model were discussed in relation to BPD research.
Conclusions:
- The selection of an appropriate animal model is crucial for meaningful basic research in BPD.
- This review offers guidance for choosing models to study BPD pathogenesis, pathophysiology, and therapeutic strategies.
- Further research into optimized animal models is essential for advancing BPD prevention and treatment.
Abstract:
With the development of treatment, the survival rate of premature infants has significantly increased, especially extremely premature infants and very low birth weight infants. This has led to an increase in incidence of bronchopulmonary dysplasia (BPD) year by year. BPD has been one of the most common respiratory system diseases in premature infants, especially the small premature infants. Arrested alveolar development is an important cause of BPD. Therefore, the mechanism of arrested alveolar development and the intervention measures for promoting alveolar development are the focuses of research on BPD. Selecting the appropriate animal model of BPD is the key to obtaining meaningful results in the basic research on BPD. Based on above, several common methods for establishing an animal model of BPD and the corresponding changes in pathophysiology are summarized and evaluated in order to provide a reference for selecting the appropriate animal model in studies on the pathogenesis, pathophysiology, and prevention and control strategies of BPD.

