Pattern of cerebral edema and hemorrhage in a mice model of diffuse brain injury.
Neuroscience Letters(2004)
摘要
This study aims to examine the time course of the brain edema formation in relation with blood–brain barrier (BBB) disruption and cerebral hemorrhage in a murine model of diffuse brain injury. Brain water content increased at 1 h post-injury and persisted up to 7 days. This event was associated with electrolyte imbalance such as Na+ increase within 24 h. Prominent Evans blue extravasation was also observed from 1 to 6 h post-injury. Concurrently, hemoglobin increased markedly by 1 h, reached a peak at 4 h and declined progressively within a week in association with a rise of parenchyma iron content between 24 h and 7 days. These results suggest that brain edema is vasogenic and that the hemorrhage process is involved in the BBB disruption and edema, both leading to post-traumatic secondary events.
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关键词
Diffuse brain injury,Cerebral edema,Electrolytes,Blood–brain barrier,Cerebral hemorrhage,Hemoglobin,Iron
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