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Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats
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Altered local cerebellar and brainstem development in preterm infants.

Yao Wu1, Catherine Stoodley2, Marie Brossard-Racine3

  • 1Center for the Developing Brain, Children's National Hospital, Washington, D.C., USA.

Neuroimage
|March 10, 2020
PubMed
Summary
This summary is machine-generated.

Preterm birth impacts cerebellar and brainstem development, even without visible brain injury. This study reveals altered growth patterns in premature infants, highlighting potential neurodevelopmental risks.

Keywords:
BrainstemCerebellumFull term infantHealthy fetusPremature infant

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Area of Science:

  • Neuroscience
  • Developmental Biology
  • Medical Imaging

Background:

  • Premature birth is a leading cause of neurodevelopmental impairments in infants.
  • Cerebellar and brainstem dysfunction are implicated but poorly understood, especially without overt structural injury.

Purpose of the Study:

  • To compare in-utero and ex-utero cerebellar and brainstem development in healthy fetuses and premature infants.
  • To analyze volumetric growth and shape development of these brain regions.

Main Methods:

  • Longitudinal MRI measurements were used to compare healthy fetuses/infants (n=38) and premature infants (n=74).
  • Volumetric growth of cerebellum and brainstem regions was assessed.
  • Shape development was analyzed using spherical harmonic description.

Main Results:

  • Premature infants showed altered cerebellar growth, with smaller hemispheres and larger vermis compared to controls.
  • Brainstem development was impaired in premature infants, affecting the midbrain, pons, and medulla.
  • Differences persisted at term-equivalent age, with significant alterations in cerebellar and brainstem structures.

Conclusions:

  • Preterm birth can disrupt global, regional, and local development of the cerebellum and brainstem.
  • These alterations occur even in the absence of structural brain injury detectable by conventional MRI.
  • Findings suggest potential neurodevelopmental risks associated with altered early brain development in preterm infants.