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Abnormal cognition and behavior in preterm neonates linked to smaller brain volumes

A T Bhutta1, K J Anand

  • 1Dept of Pediatrics, University of Arkansas for Medical Sciences, 800 Marshall Street, Little Rock, AR 72202-3591, USA.

Trends in Neurosciences
|February 22, 2001
PubMed

Insights

Poor cognitive and behavioral outcomes in ex-preterm infants are linked to smaller brain region volumes. This may stem from increased neuron death (apoptosis) or damage in immature brain cells.

Area of Science:

  • Neuroscience
  • Developmental Biology
  • Pediatrics

Background:

  • Ex-preterm neonates often exhibit cognitive and behavioral deficits.
  • Brain development is crucial for long-term neurological function.
  • Immature neurons are particularly vulnerable to damage.

Purpose of the Study:

  • To investigate the association between brain region volumes and outcomes in ex-preterm children.
  • To explore potential mechanisms underlying observed brain volume reductions.

Main Methods:

  • Volumetric measurements of specific brain regions were conducted.
  • The study focused on eight-year-old children with a history of preterm birth.

Main Results:

  • Reduced volumes in specific brain regions were identified in ex-preterm children.
  • These volume reductions correlate with poor cognitive and behavioral outcomes.

Conclusions:

  • Brain structural changes, specifically reduced regional volumes, are associated with adverse outcomes in ex-preterm children.
  • Enhanced apoptosis or excitotoxic damage to immature neurons may underlie these observed brain alterations.

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