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Published on: December 29, 2014
Environmental enrichment decreases asphyxia-induced neurobehavioral developmental delay in neonatal rats
Peter Kiss1, Gyongyver Vadasz, Blanka Kiss-Illes
1Department of Anatomy, PTE-MTA "Lendulet" PACAP Research Team, University of Pecs, Pecs 7624, Hungary. dora.reglodi@aok.pte.hu.
Insights
Enriched environments can mitigate neurodevelopmental delays in neonatal rats exposed to perinatal asphyxia. This strategy improved somatic and neurobehavioral development, offering a promising approach for neonatal care.
Area of Science:
- Neuroscience
- Developmental Biology
- Neonatal Care
Background:
- Perinatal asphyxia (PA) is a significant cause of long-term disability in newborns.
- Neuroprotective strategies are crucial for managing the effects of PA.
- Enriched environment (EE) is recognized for its potential to counteract nervous system injuries.
Purpose of the Study:
- To investigate the efficacy of enriched environment (EE) in reducing neurobehavioral developmental delays caused by perinatal asphyxia (PA) in neonatal rats.
Main Methods:
- Perinatal asphyxia was induced in neonatal rat pups via caesarian section after maternal asphyxiation.
- Somatic and neurobehavioral development were assessed daily, and motor coordination weekly.
- Pups were housed in either standard or enriched environments post-birth.
Main Results:
- Neonatal rats exposed to PA exhibited significant developmental delays and impaired motor coordination.
- Pups raised in an enriched environment showed reduced developmental delays compared to controls.
- Enriched environment mitigated weight gain reduction and accelerated reflex development in asphyctic pups.
Conclusions:
- Enriched environment significantly counteracts the negative neurodevelopmental effects of perinatal asphyxia in neonatal rats.
- EE may serve as a potent therapeutic strategy to improve outcomes for infants affected by birth asphyxia.
- Early-life environmental enrichment holds promise for mitigating long-term deficits associated with perinatal asphyxia.
Abstract:
Perinatal asphyxia during delivery produces long-term disability and represents a major problem in neonatal and pediatric care. Numerous neuroprotective approaches have been described to decrease the effects of perinatal asphyxia. Enriched environment is a popular strategy to counteract nervous system injuries. The aim of the present study was to investigate whether enriched environment is able to decrease the asphyxia-induced neurobehavioral developmental delay in neonatal rats. Asphyxia was induced in ready-to-deliver mothers by removing the pups by caesarian section after 15 min of asphyxia. Somatic and neurobehavioral development was tested daily and motor coordination weekly. Our results show that rats undergoing perinatal asphyxia had a marked developmental delay and worse performance in motor coordination tests. However, pups kept in enriched environment showed a decrease in the developmental delay observed in control asphyctic pups. Rats growing up in enriched environment did not show decrease in weight gain after the first week and the delay in reflex appearance was not as marked as in control rats. In addition, the development of motor coordination was not as strikingly delayed as in the control group. Short-term neurofunctional outcome are known to correlate with long-term deficits. Our results thus show that enriched environment could be a powerful strategy to decrease the deleterious developmental effects of perinatal asphyxia.
