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Updated: May 1, 2026

Transient Middle Cerebral Artery Occlusion Model of Neonatal Stroke in P10 Rats
Published on: April 21, 2017
Mechanisms of perinatal arterial ischemic stroke
David Fernández-López1, Niranjana Natarajan2, Stephen Ashwal3
1Department of Neurology, University of California San Francisco, San Francisco, California, USA.
Insights
Perinatal stroke causes significant long-term neurologic deficits. This review details the unique pathophysiology of neonatal brain injury and discusses emerging treatments for perinatal stroke.
Area of Science:
- Neurology
- Neonatal Medicine
- Developmental Neuroscience
Background:
- Perinatal stroke incidence is high, comparable to the elderly.
- It leads to severe long-term neurologic and cognitive deficits, including cerebral palsy and epilepsy.
- Neonatal brain damage pathophysiology is multifactorial and age-dependent.
Purpose of the Study:
- To review fundamental clinical aspects of perinatal stroke.
- To discuss recent findings on neonatal brain injury mechanisms.
- To explore translational strategies and repair treatments for neonatal stroke.
Main Methods:
- Review of emerging clinical data.
- Analysis of experimental models of cerebral ischemia in neonatal rodents.
- Synthesis of recent findings on cellular susceptibility, cell death, and blood-brain barrier responses.
Main Results:
- The neonatal brain exhibits unique age-dependent responses to hypoxia-ischemia and focal arterial stroke.
- Understanding of neuronal cell death dynamics, blood-brain barrier responses, and inflammation in neonatal stroke is advancing.
- Long-term effects on angiogenesis and neurogenesis are being investigated.
Conclusions:
- Perinatal stroke is a complex condition with unique neonatal pathophysiology.
- Further research into cellular mechanisms and blood-brain barrier dynamics is crucial.
- Translational strategies and therapeutic interventions are under development to improve outcomes.
Abstract:
The incidence of perinatal stroke is high, similar to that in the elderly, and produces a significant morbidity and severe long-term neurologic and cognitive deficits, including cerebral palsy, epilepsy, neuropsychological impairments, and behavioral disorders. Emerging clinical data and data from experimental models of cerebral ischemia in neonatal rodents have shown that the pathophysiology of perinatal brain damage is multifactorial. These studies have revealed that, far from just being a smaller version of the adult brain, the neonatal brain is unique with a very particular and age-dependent responsiveness to hypoxia-ischemia and focal arterial stroke. In this review, we discuss fundamental clinical aspects of perinatal stroke as well as some of the most recent and relevant findings regarding the susceptibility of specific brain cell populations to injury, the dynamics and the mechanisms of neuronal cell death in injured neonates, the responses of neonatal blood-brain barrier to stroke in relation to systemic and local inflammation, and the long-term effects of stroke on angiogenesis and neurogenesis. Finally, we address translational strategies currently being considered for neonatal stroke as well as treatments that might effectively enhance repair later after injury.
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