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Updated: May 23, 2026

The Hypoxic Ischemic Encephalopathy Model of Perinatal Ischemia
08:47

The Hypoxic Ischemic Encephalopathy Model of Perinatal Ischemia

Published on: November 19, 2008

The role of oxidative stress in perinatal hypoxic-ischemic brain injury

Brankica Vasiljević1, Svjetlana Maglajlić-Djukić, Miroslava Gojnić

  • 1Clinic of Gynecology and Obstetrics, Clinical Centre of Serbia Visgradska 26, 11000 Belgrade, Serbia. bdvasilj@eunet.rs

Srpski Arhiv Za Celokupno Lekarstvo
|April 3, 2012
PubMed

Insights

Oxidative stress, measured by glutathione peroxidase (GPX) in cerebrospinal fluid (CSF), is linked to brain injury severity and neurodevelopmental outcomes in infants with hypoxic-ischemic encephalopathy (HIE). This suggests a key role for oxidative stress in HIE pathogenesis.

Area of Science:

  • Neonatal Neurology
  • Biochemistry
  • Neuroscience

Background:

  • Perinatal hypoxic-ischemic encephalopathy (HIE) is a complex condition.
  • Understanding its pathogenesis is crucial for improving infant outcomes.

Purpose of the Study:

  • To investigate the role of oxidative stress in HIE.
  • To correlate oxidative stress markers with brain injury extent and neurological outcomes.
  • To assess glutathione peroxidase (GPX) and neuron-specific enolase (NSE) in CSF as biomarkers.

Main Methods:

  • Prospective study of 90 neonates with HIE (gestational age >32 weeks).
  • Categorization of HIE severity using Sarnat and Sarnat criteria and amplitude-integrated EEG.
  • Measurement of CSF GPX activity and NSE levels within 72 hours of birth.
  • Neurodevelopmental assessment at 12 months corrected gestational age.

Main Results:

  • CSF GPX activity correlated significantly with HIE clinical stage and gestational age.
  • GPX activity strongly correlated with NSE levels, indicating extent of brain injury.
  • GPX activity in CSF predicted subsequent neurodevelopmental outcomes.

Conclusions:

  • Oxidative stress appears to be a significant factor in perinatal hypoxic-ischemic brain damage.
  • This is particularly relevant in preterm neonates.
  • GPX activity serves as a valuable biomarker for assessing HIE severity and prognosis.
Abstract

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