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- W1997165074 abstract "The cyclooxygenase-2 (COX-2) enzyme is part of the inflammatory pathway and is induced within the brain by a variety of pathological events, including ischemia. Pharmacological agents that inhibit COX-2 have been found to be neuroprotective in a number of injury models, and long-term administration of these drugs has been shown to induce plastic changes in the brain. In the current experiment, we investigated the effectiveness of stimulating cortical plasticity following stroke injury through the administration of the COX-2 inhibitor drug NS398. Furthermore, we determined whether the induced plastic changes improved functional outcome following motor cortex stroke. Chronic drug administration was found to induce dendritic hypertrophy in cells in the parietal cortex, and this anatomical change was associated with the animals making significantly more reach attempts, as well as successful reaches during a skilled reaching task. Additional motor tests however revealed that the treatment did not affect the level of motor recovery, as the animals showed chronic impairments in the Schallert cylinder, and the forepaw inhibition tasks. Short-term administration of the drug, immediately following the stroke did not induce any dendritic changes, nor was it found to improve behavioral performance on any of the motor tasks. Based on these results we conclude that the plastic changes that are induced by long-term COX-2 inhibitor administration provide some benefit to functional outcome following ischemic cortical injury." @default.
- W1997165074 created "2016-06-24" @default.
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- W1997165074 date "2007-02-01" @default.
- W1997165074 modified "2023-09-23" @default.
- W1997165074 title "Chronic inhibition of cyclooxygenase-2 induces dendritic hypertrophy and limited functional improvement following motor cortex stroke" @default.
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- W1997165074 doi "https://doi.org/10.1016/j.neuroscience.2006.10.030" @default.
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