Related Experiment Video
Updated: Aug 8, 2026

A Novel Surgical Approach for Intratracheal Administration of Bioactive Agents in a Fetal Mouse Model
Published on: October 31, 2012
Prevention and treatment of fetal lung immaturity
1Institute of Gynecology and Obstetrics, University of Perugia, Italy.
Insights
Glucocorticoids (GC) reduce neonatal respiratory distress syndrome (RDS) in premature infants. Ambroxol also shows promise, while inositol may mitigate GC side effects, improving fetal lung maturity.
Area of Science:
- Neonatal Medicine
- Pharmacology
- Obstetrics
Background:
- Neonatal respiratory distress syndrome (RDS) remains a significant concern in premature infants.
- Current prevention strategies focus on accelerating fetal lung maturity and developing surfactant treatments.
- Glucocorticoids (GC) are the most studied drugs for antenatal administration to promote lung development.
Purpose of the Study:
- To review strategies for preventing neonatal respiratory distress syndrome (RDS).
- To evaluate alternative drugs like ambroxol and aminophylline for accelerating fetal lung maturity.
- To assess the combined effects of glucocorticoids (GC) with inositol and the role of surfactant therapy.
Main Methods:
- Review of existing literature on antenatal therapies for RDS prevention.
- Analysis of experimental studies on ambroxol, aminophylline, and inositol.
- Evaluation of clinical data on surfactant replacement therapy.
Main Results:
- Glucocorticoids (GC) are effective in reducing RDS incidence in specific premature infant groups (28-32 weeks, <1500g).
- Ambroxol demonstrated significant RDS reduction versus placebo with minimal adverse effects.
- Inositol mitigated adverse effects of GC, improving fetal lung mechanics; aminophylline showed limited benefit; surfactant therapy improved oxygenation in premature infants.
Conclusions:
- Antenatal therapies, including glucocorticoids (GC) and newer agents like ambroxol, are crucial for preventing neonatal respiratory distress syndrome (RDS).
- Inositol may enhance GC efficacy and reduce side effects, while surfactant replacement therapy is vital for treating established RDS.
- Continued research into optimizing drug delivery and combination therapies is essential for improving outcomes in premature neonates.
Abstract:
In the last 10 years the strategy for the prevention of neonatal respiratory distress syndrome (RDS) has been directed towards the acceleration of fetal lung maturity in utero by means of drugs administered to the mother, the most thoroughly investigated being glucocorticoids (GC), and to the development of surfactant substitutes for the treatment of surfactant deficiency at birth or following the development of RDS. GC decreases the incidence of RDS in the neonate delivered between 28 and 32 weeks and weighing less than 1,500 g. The type of GC and the drug-delivery interval are critical. Harmful potential side effects of GC have led to the testing of other drugs capable of accelerating fetal lung maturity, among which are ambroxol and aminophylline. Ambroxol has been shown to significantly reduce RDS compared to placebo without causing important adverse effects in either mother or baby. Our experimental studies on aminophylline have shown that the drug exerts only minor beneficial effects on fetal lung maturation and surfactant production. We have evaluated the association of GC with inositol. The sugar alcohol administered to the mother dramatically affected fetal lung mechanics, reducing GC adverse effects such as the decrease of lung protein content. More recently supplementary surfactant instilled into the trachea has been shown to improve oxygenation of premature babies and to reduce the severity of RDS.
Related Concept Videos
Breathing
Cystic Fibrosis: Management
Sinus disease and chronic sinusitis...
Pulmonary Cycle: Exhalation
Pneumonia IV: Management
Bacterial Pneumonia Treatment
For bacterial pneumonia, antibiotics serve as the cornerstone of therapy. Initial treatment often begins with empirical antibiotics, tailored to the anticipated causative organism and adjusted based on culture results. Key antibiotic choices include:
Pneumonia V: Nursing management and Prevention
The nurse must practice strict medical asepsis and adhere to infection control guidelines to minimize healthcare-associated infections.
Enhance airway patency
Position the patient correctly to facilitate drainage of the affected lung segments. Manual or mechanical percussion and vibration can also be employed.
Acute Respiratory Failure-V
Ensure that patients are monitored continuously for their response to therapy, including changes in...

