Quercetin attenuates ischemia reperfusion injury by protecting the blood-brain barrier through Sirt1 in MCAO rats.
Ran YangYan-Jia ShenMiao ChenJia-Ying ZhaoShu-Han ChenWen ZhangJun-Ke SongLi LiGuan-Hua DuPublished in: Journal of Asian natural products research (2021)
The purpose of the present study was to examine the protective action and mechanisms of quercetin on the blood-brain barrier (BBB) in rats subjected to transient middle cerebral artery occlusion (tMCAO) and reperfusion. Quercetin (10, 30, 50 mg/kg) was intraperitoneally administered at the onset of reperfusion. The results showed that quercetin significantly reduced cerebral infarct volume, neurological deficit, BBB permeability and ROS generation via Sirt1/Nrf2/HO-1 signaling pathway. Moreover, EX527, a selective inhibitor of Sirt1, reversed these neuroprotective effects. Our findings indicate that quercetin has neuroprotective effects against cerebral ischemia-reperfusion injury by protecting BBB through Sirt1 signaling pathway in MCAO rats.
Keyphrases
- cerebral ischemia
- ischemia reperfusion injury
- blood brain barrier
- oxidative stress
- signaling pathway
- middle cerebral artery
- subarachnoid hemorrhage
- pi k akt
- acute myocardial infarction
- brain injury
- epithelial mesenchymal transition
- dna damage
- induced apoptosis
- internal carotid artery
- cell death
- acute ischemic stroke
- cell proliferation