Global ischemia promotes neurogenesis in the dentate gyrus of the adult mouse hippocampus. Cyclooxygenase (COX)-2, the principal isoenzyme in the brain, modulates inflammation, glutamate-mediated cytotoxicity, and synaptic plasticity. The enhancement of dentate gyrus neurogenesis following ischemia was attenuated by COX inhibitors and in COX-2 knockout mice. These results demonstrate that COX-2 may modulate the enhancement of neurogenesis following ischemia.
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