Related Experiment Videos
Cerebrovascular regulation and neonatal brain injury
J Del Toro1, P T Louis, J Goddard-Finegold
1Department of Pediatrics, College of Medicine, Houston, TX 77030.
Insights
Cerebrovascular regulation abnormalities contribute to brain injury in newborns. Enhancing knowledge of newborn brain vasculature is crucial for predicting and preventing perinatal brain damage.
Area of Science:
- Neuroscience
- Neonatal Medicine
- Cerebrovascular Research
Background:
- Hemodynamic injury causes neuropathology in up to 25% of preterm newborns (<1,500 gm birth weight).
- Abnormalities in cerebrovascular regulation are implicated in both ischemic and hemorrhagic injuries in the newborn brain.
Purpose of the Study:
- To explore factors influencing cerebrovascular regulation in the immature brain.
- To compare cerebrovascular regulation in immature versus mature brains.
- To relate cerebrovascular regulation to newborn brain pathology.
Main Methods:
- Review of existing literature on cerebrovascular regulation in newborn and mature brains.
- Analysis of factors contributing to neuropathology in preterm and term infants.
- Correlation of vascular regulation mechanisms with observed brain injuries.
Main Results:
- Cerebrovascular dysregulation is a significant factor in neonatal neuropathology.
- Immature brains exhibit unique regulatory mechanisms compared to mature brains.
- Understanding these differences is key to addressing perinatal brain injury.
Conclusions:
- Increased basic and clinical knowledge of the newborn cerebrovasculature is essential.
- Enhanced understanding will improve prediction and prevention of perinatal brain injury.
- This research supports the "decade of the brain" initiative by focusing on neonatal brain health.
Abstract:
Neuropathology occurring as a result of hemodynamic injury occurs in up to 25% of preterm newborns of less than 1,500 gm birth weight and in a much smaller, but nonetheless meaningful, proportion of more mature infants. Abnormalities in cerebrovascular regulation have been proposed as major contributing factors to both ischemic and hemorrhagic injuries in the newborn brain. In this review we explore several factors that play a role in cerebrovascular regulation in the immature brain and relate them to what is known about vascular regulation in the mature brain and to the types of pathology that occur in the newborn brain. One goal in this "decade of the brain" should be to increase our basic and clinical knowledge about the cerebrovasculature of the newborn in order to enhance our ability to predict and prevent perinatal brain injury.