Abstract
Decreased cerebral blood flow causes cognitive impairments and neuronal injury in vascular dementia. In the present study, we reported that donepezil, a cholinesterase inhibitor, improved transient global cerebral ischemia-induced spatial memory impairment in gerbils. Treatment with 5mg/kg of donepezil for 21 consecutive days following a 10-min period of ischemia significantly inhibited delayed neuronal death in the hippocampal CA1 region. In Morris water maze test, memory impairment was significantly improved by donepezil treatment. Western blot analysis showed that donepezil treatment prevented reductions in p-CaMKII and p-CREB protein levels in the hippocampus. These results suggest that donepezil attenuates the memory deficit induced by transient global cerebral ischemia and this neuroprotection may be associated with the phosphorylation of CaMKII and CERB in the hippocampus.
Highlights
► Memory impairment was improved in ischemia gerbils treated with donepezil. ► Donepezil inhibited neuronal death in the hippocampal CA1 region in ischemic gerbils. ► Donepezil increased p-CaMKII and p-CREB protein levels in ischemic gerbils.
Highlights
► Memory impairment was improved in ischemia gerbils treated with donepezil. ► Donepezil inhibited neuronal death in the hippocampal CA1 region in ischemic gerbils. ► Donepezil increased p-CaMKII and p-CREB protein levels in ischemic gerbils.
Original language | English |
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Pages (from-to) | 29-33 |
Number of pages | 5 |
Journal | Neuroscience Letters |
Volume | 510 |
Issue number | 1 |
Early online date | 08 Jan 2012 |
DOIs | |
Publication status | Published - 21 Feb 2012 |
ASJC Scopus subject areas
- Neuroscience(all)