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Genetic Deletion of Prostacyclin IP Receptor Exacerbates Transient Global Cerebral Ischemia in Aging Mice

Overview
Journal Brain Sci
Publisher MDPI
Date 2014 Mar 18
PMID 24634780
Citations 10
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Abstract

Transient global cerebral ischemia causes delayed neuronal death in the hippocampal CA1 region. It also induces an up regulation of cyclooxygenase 2 (COX-2), which generates several metabolites of arachidonic acid, known as prostanoids, including Prostaglandin I2 (PGI2). The present study investigated whether the PGI2 IP receptor plays an important role in brain injury after global cerebral ischemia in aged mice. Adult young (2-3 months) and aged (12-15 months) male C57Bl/6 wild-type (WT) or IP receptor knockout (IP KO) mice underwent a 12 min bilateral common carotid artery occlusion (BCCAO) or a sham surgery. Behavior tests (neurologic deficit and T-maze) were performed 3 and 7 days after BCCAO. After seven days of reperfusion, the numbers of cells positive for markers of neurons, astrocytes, microglia, myeloperoxidase (MPO) and phosphorylated CREB (p-CREB) were evaluated immunohistochemically. Interestingly, in young and aged IP KO ischemic mice, there was a significant increase (p < 0.01) in cognitive deficit, hippocampal CA1 pyramidal neuron death, microglia and MPO activation, while p-CREB was reduced as compared to their corresponding WT controls. These data suggest that following ischemia, IP receptor deletion contributes to memory and cognitive deficits regulated by the CREB pathway and that treatment with IP receptor agonists could be a useful target to prevent harmful consequences.

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Correction: Shakil, H.; Saleem, S. Genetic Deletion of Prostacyclin IP Receptor Exacerbates Transient Global Cerebral Ischemia in Aging Mice. 2013, , 1095-1108.

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References
1.
Mizuno M, Yamada K, Maekawa N, Saito K, Seishima M, Nabeshima T . CREB phosphorylation as a molecular marker of memory processing in the hippocampus for spatial learning. Behav Brain Res. 2002; 133(2):135-41. DOI: 10.1016/s0166-4328(01)00470-3. View

2.
Kim D, Jeon S, Son K, Jung J, Lee S, Yoon B . Effect of the flavonoid, oroxylin A, on transient cerebral hypoperfusion-induced memory impairment in mice. Pharmacol Biochem Behav. 2006; 85(3):658-68. DOI: 10.1016/j.pbb.2006.10.025. View

3.
Neumar R . Molecular mechanisms of ischemic neuronal injury. Ann Emerg Med. 2000; 36(5):483-506. DOI: 10.1067/mem.2000.110995. View

4.
Kreutzberg G . Microglia: a sensor for pathological events in the CNS. Trends Neurosci. 1996; 19(8):312-8. DOI: 10.1016/0166-2236(96)10049-7. View

5.
Neumann J, Cohan C, Dave K, Wright C, Perez-Pinzon M . Global cerebral ischemia: synaptic and cognitive dysfunction. Curr Drug Targets. 2012; 14(1):20-35. PMC: 5800514. DOI: 10.2174/138945013804806514. View