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| Content Provider | Springer Nature Link |
|---|---|
| Author | Lin, Yun Chen, Fang Zhang, Jiancheng Wang, Tingting Wei, Xin Wu, Jing Feng, Yinglu Dai, Zhongliang Wu, Qingping |
| Copyright Year | 2013 |
| Abstract | Previous studies have provided evidences that resveratrol can protect the brain from ischemia/reperfusion injury; the mechanisms of its neuroprotective effects remain unknown. To investigate whether resveratrol has neuroprotective effects on ischemia and reperfusion injury and whether resveratrol exerts its neuroprotective effects through inhibition of calpain proteolysis of TRPC6, a transient middle cerebral artery occlusion (MCAO) model was employed in rats. Western blot analysis was performed to detect the protein levels of aII-spectrin, transient receptor potential canonical (subtype) 6 (TRPC6) and phosphorylated cAMP/Ca$^{2+}$ response element-binding protein (p-CREB). The immunoreactivity of p-CREB and TRPC6 were measured by quantum dot-based immunofluorescence analysis. Our results showed that MCAO rats showed large cortical infarct volumes and neurological scores. By contrast, resveratrol, when applied for 7 days before MCAO onset, significantly reduced infarct volumes and enhanced neurological scores at 24 h after reperfusion, and these results were accompanied by elevated TRPC6 and p-CREB activity and decreased calpain activity. When MEK or CaMKIV activity was inhibited by the addition of PD98059 or KN62, the neuroprotective effects of resveratrol were attenuated, and we observed a correlated decrease in CREB activity. Our results demonstrated that resveratrol prevented the brain from ischemia/reperfusion injury through the TRPC6–MEK–CREB and TRPC6–CaMKIV–CREB pathways. |
| Starting Page | 504 |
| Ending Page | 513 |
| Page Count | 10 |
| File Format | |
| ISSN | 08958696 |
| Journal | Journal of Molecular Neuroscience |
| Volume Number | 50 |
| Issue Number | 3 |
| e-ISSN | 15591166 |
| Language | English |
| Publisher | Humana Press Inc |
| Publisher Date | 2013-02-23 |
| Publisher Place | New York |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Cerebral ischemia CREB Neuroprotection Rat TRPC Neurosciences Neurochemistry Cell Biology Proteomics Neurology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Medicine Cellular and Molecular Neuroscience |
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