Abstract
The CNS inflammatory reaction occurring after aneurysmal subarachnoid hemorrhage (SAH) involves the upregulation of numerous cytokines and prostaglandins. Cyclooxygenase (COX) inhibition is a well-established pharmacological anti-inflammatory agent. Previous studies have shown marked increases in COX-2 expression in neurons, astrocytes, microglia, and endothelial cells following brain injury. COX-2 inhibition has been shown to be beneficial following various types of brain injury. This experiment investigates the role of COX-2 activity in early brain injury following SAH. CD-1 mice were subjected to an endovascular perforation model of SAH or SHAM surgery. Following experimental SAH animals were treated with the specific COX-2 inhibitor, NS398, in dosages of either 10 or 30 mg/kg. Neurological performance and brain edema were evaluated 24 and 72 h after SAH. NS398 at 30 mg/kg significantly reduced SAH-induced neurological deterioration. NS 398 at 30 mg/kg resulted in a trend toward the reduction of SAH-induced cerebral edema. Treatment had no effect on mortality. This experiment provides preliminary evidence that COX-2 inhibition is an effective pharmacological intervention for the prevention of brain edema and the preservation of neurological function following SAH.
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Acknowledgements
This study was partially supported by grants from NIH to JHZ.
Conflict of interest statement We declare that we have no conflict of interest.
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Ayer, R., Jadhav, V., Sugawara, T., Zhang, J.H. (2011). The Neuroprotective Effects of Cyclooxygenase-2 Inhibition in a Mouse Model of Aneurysmal Subarachnoid Hemorrhage. In: Zhang, J., Colohan, A. (eds) Intracerebral Hemorrhage Research. Acta Neurochirurgica Supplementum, vol 111. Springer, Vienna. https://doi.org/10.1007/978-3-7091-0693-8_24
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DOI: https://doi.org/10.1007/978-3-7091-0693-8_24
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