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Updated: Dec 12, 2025
Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats
Published on: November 20, 2015
Preterm Brain Injury, Antenatal Triggers, and Therapeutics: Timing Is Key
Daan R M G Ophelders1,2, Ruth Gussenhoven1, Luise Klein1,3
1Department of Pediatrics, Maastricht University Medical Center, 6202 AZ Maastricht, The Netherlands.
Insights
Preterm birth causes neonatal mortality and lifelong neurological issues. This review examines chorioamnionitis and hypoxia-ischemia, key factors in preterm brain injury, and discusses treatments.
Area of Science:
- Neonatal neurology
- Perinatal medicine
- Developmental neuroscience
Background:
- Preterm birth (15 million cases globally) leads to neonatal mortality and morbidity, imposing social and economic burdens.
- Immature brain development in preterm infants, especially those born before 28 weeks' gestation, predisposes them to lifelong neurological disorders.
- Perinatal brain injury in extremely preterm infants is linked to inflammatory triggers like antenatal infection (chorioamnionitis) and hypoxia-ischemia.
Purpose of the Study:
- To review the pathophysiology of preterm brain injury, focusing on chorioamnionitis and hypoxia-ischemia.
- To highlight recent advancements in understanding the inflammatory cascade leading to white and grey matter injuries.
- To discuss potential therapeutic strategies and future research directions to bridge the gap between preclinical findings and clinical practice.
Main Methods:
- Literature review focusing on antenatal risk factors for preterm brain injury.
- Analysis of the inflammatory pathways involved in perinatal brain damage.
- Synthesis of current research on pathophysiology, treatment, and translational perspectives.
Main Results:
- Chorioamnionitis and hypoxia-ischemia are significant antenatal risk factors contributing to preterm brain injury.
- Perinatal insults trigger a cascade of peripheral and cerebral inflammation, causing diffuse white and grey matter injuries.
- These injuries result in connectivity deficits in survivors of extremely preterm birth.
Conclusions:
- Understanding the pathophysiology of chorioamnionitis and hypoxia-ischemia is crucial for developing effective interventions.
- Targeting inflammatory pathways offers potential therapeutic avenues for preventing or mitigating preterm brain injury.
- Further research is needed to translate preclinical findings into clinical applications for improving outcomes in preterm infants.
Abstract:
With a worldwide incidence of 15 million cases, preterm birth is a major contributor to neonatal mortality and morbidity, and concomitant social and economic burden Preterm infants are predisposed to life-long neurological disorders due to the immaturity of the brain. The risks are inversely proportional to maturity at birth. In the majority of extremely preterm infants (<28 weeks' gestation), perinatal brain injury is associated with exposure to multiple inflammatory perinatal triggers that include antenatal infection (i.e., chorioamnionitis), hypoxia-ischemia, and various postnatal injurious triggers (i.e., oxidative stress, sepsis, mechanical ventilation, hemodynamic instability). These perinatal insults cause a self-perpetuating cascade of peripheral and cerebral inflammation that plays a critical role in the etiology of diffuse white and grey matter injuries that underlies a spectrum of connectivity deficits in survivors from extremely preterm birth. This review focuses on chorioamnionitis and hypoxia-ischemia, which are two important antenatal risk factors for preterm brain injury, and highlights the latest insights on its pathophysiology, potential treatment, and future perspectives to narrow the translational gap between preclinical research and clinical applications.
