Related Experiment Videos
Morphologic development of fetal rabbit lung and its acceleration with cortisol
The American Journal of Pathology
|August 1, 1971
Summary
Cortisol accelerates fetal rabbit lung maturation, improving lung development and viability. This hormone enhances alveolar type II cell maturation, crucial for lung function and breathing in newborns.
Area of Science:
- Fetal Development
- Pulmonology
- Endocrinology
Background:
- Lung maturation follows a specific sequence among rabbit lung lobes.
- Cortisol plays a role in fetal lung development.
Purpose of the Study:
- To investigate cortisol's influence on fetal rabbit lung maturation.
- To document the normal developmental sequence of rabbit lung lobes.
Main Methods:
- Cortisol was injected into rabbit fetuses two days before delivery.
- Lung maturation, type II epithelial cells, and alveolar surface activity were assessed.
Main Results:
- Cortisol accelerated overall lung maturation by approximately 1.5 days.
- Type II epithelial cells showed accelerated maturation with more inclusion bodies.
- Cortisol-injected fetuses exhibited improved viability, breathing, and lung aeration.
Conclusions:
- Cortisol administration enhances fetal lung maturation in rabbits.
- Accelerated maturation of type II alveolar epithelial cells is key to improved lung function.
- Cortisol treatment leads to increased lung surface activity due to enhanced surfactant production.