Department of Neuroscience and Regenerative Medicine: Faculty Research and Presentations

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    Dibucaine Mitigates Spreading Depolarization in Human Neocortical Slices and Prevents Acute Dendritic Injury in the Ischemic Rodent Neocortex
    (2011-07-15) Risher, William Christopher; Lee, Mark R.; Fomitcheva, Ioulia V.; Hess, David C.; Kirov, Sergei A.; Graduate Program in Neuroscience; Department of Neurosurgery; Department of Neurology; Brain & Behavior Discovery Institute
    Background: Spreading depolarizations that occur in patients with malignant stroke, subarachnoid/intracranial hemorrhage, and traumatic brain injury are known to facilitate neuronal damage in metabolically compromised brain tissue. The dramatic failure of brain ion homeostasis caused by propagating spreading depolarizations results in neuronal and astroglial swelling. In essence, swelling is the initial response and a sign of the acute neuronal injury that follows if energy deprivation is maintained. Choosing spreading depolarizations as a target for therapeutic intervention, we have used human brain slices and in vivo real-time two-photon laser scanning microscopy in the mouse neocortex to study potentially useful therapeutics against spreading depolarization-induced injury.