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Published on: November 20, 2015
Developmental factors regulating susceptibility to perinatal brain injury and seizures
1Department of Neurology, Children's Hospital, Program in Neurobiology, Harvard Medical School, Boston, MA 02114, USA. frances.jensen@childrens.harvard.edu
Insights
Neonatal brain injury susceptibility differs between preterm and term infants due to developmental factors. Understanding these age-specific differences can lead to targeted therapies for conditions like periventricular leukomalacia and neonatal seizures.
Area of Science:
- Neuroscience
- Developmental Biology
- Neonatal Medicine
Background:
- The neonatal brain exhibits distinct regional vulnerabilities to injury.
- Hypoxia-ischemia, a common insult, affects white matter in preterm infants and gray matter in term infants.
Purpose of the Study:
- To review developmental factors influencing brain susceptibility in preterm and term infants.
- To understand age-specific differences in neonatal brain injury patterns.
Main Methods:
- Literature review of developmental neurobiology.
- Analysis of age-dependent responses to hypoxic-ischemic injury.
Main Results:
- Preterm brain injury predominantly affects white matter, while term brain injury impacts gray matter.
- Developmental regulation of cellular factors underlies these regional and age-specific susceptibilities.
Conclusions:
- Identifying these regulatory factors can inform the development of age-specific therapeutic strategies.
- Potential applications include treatments for periventricular leukomalacia and neonatal seizures.
Purpose Of Review:
To review the unique pattern of developmentally regulated factors that govern the susceptibility of the brain during the preterm and term windows of development.
Recent Findings:
The neonatal brain shows unique regional differences in susceptibility to injury. In response to the common insult of hypoxia/ischemia, the preterm brain exhibits regional white matter susceptibility, while gray matter is affected in the term brain. Developmental regulation of specific cellular factors is likely to underlie these age-specific differences.
Summary:
A better understanding of these factors could contribute to the development of new age-specific therapeutic strategies with clinical potential for disorders such as periventricular leukomalacia in the preterm and neonatal seizures in the term infant.
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