Related Experiment Video
Updated: Jun 23, 2026

Modeling Encephalopathy of Prematurity Using Prenatal Hypoxia-ischemia with Intra-amniotic Lipopolysaccharide in Rats
Published on: November 20, 2015
Insults to the developing brain and impact on neurodevelopmental outcome
1Developmental Progress Clinic, Department of Pediatrics/Division of Neonatology, Emory University, School of Medicine, 49 Jesse Hill Jr. Drive SE, Atlanta, GA, USA. iadamsc@emory.edu
Insights
Premature infants face higher risks of brain injury, potentially leading to long-term neurodevelopmental issues like cerebral palsy and cognitive impairment.
Area of Science:
- Neonatal neurology
- Developmental neuroscience
Background:
- Premature infants are susceptible to brain injury via intraventricular hemorrhage, ischemia, and vulnerable progenitor cells.
- Brain injury can cause overt lesions or subtle disruptions in neural pathways, affecting cortical and cerebellar development.
- Improved survival rates for premature infants highlight ongoing concerns about neurocognitive deficits.
Purpose of the Study:
- To identify causes of brain injury in premature infants.
- To understand the brain's maturation during gestation.
- To recognize risk factors for adverse neurocognitive outcomes.
- To correlate neuroimaging findings with neurodevelopmental risks.
Main Methods:
- Review of mechanisms of brain injury in premature infants.
- Analysis of neurodevelopmental outcomes and risk factors.
- Correlation of neuroimaging abnormalities with neurodevelopmental prognosis.
Main Results:
- Premature infants are at increased risk for brain injury.
- Subtle injuries can disrupt neural pathways.
- Brain injury is linked to adverse neurocognitive functioning, including cerebral palsy and cognitive impairment.
Conclusions:
- Understanding brain injury mechanisms in premature infants is crucial.
- Early identification of risk factors and neuroimaging abnormalities can predict neurodevelopmental outcomes.
- Interventions targeting brain development in premature infants are essential.
Unlabelled:
Premature infants have a disproportionately increased risk for brain injury based on several mechanisms including intraventricular hemorrhage, ischemia and the vulnerability of developing neuronal progenitor cells. Injury to the developing brain often results in neurologic abnormalities that can be correlated with a structural lesion; however more subtle injury may result in disruption of critical neural pathways. There also appears to be an important relationship between brain injury in the cortex and the growth and developing cerebellum. Although the survival rate for premature has improved over the past decade, researchers remain concerned about the risk for adverse neurocognitive functioning in these early childhood, including an increased risk for cerebral palsy, cognitive impairment, speech and language delay and sensory dysfunction.
Learning Outcomes:
After this activity, the learner will be able to (1) identify potential causes of brain injury in the premature infant, (2) understand that the maturational process for the human brain continues throughout gestation, (3) identify risk factors for adverse neurocognitive functioning in premature infants, and (4) identify abnormalities on central nervous system neuroimaging studies that correlate with an increased risk for adverse neurodevelopmental outcome in premature infants.
Related Concept Videos
Teratogenicity
Gut-Brain Axis
Neurulation
Disorders of the Nervous Tissue
Homeostatic Imbalances:
Alzheimer's disease manifests as a gradual decline in memory and cognitive abilities, attributed to the buildup of amyloid plaques and neurofibrillary tangles in the brain.
Parkinson's disease arises from the...
Attention-Deficit/Hyperactivity Disorder
Diagnostic Criteria and Symptoms
To diagnose ADHD, symptoms must manifest before age 12 and be evident across multiple settings.
Intellectual Disability

