当前位置: 首页 > 详情页

Effects of erythropoietin combined with tissue plasminogen activator on the rats following cerebral ischemia and reperfusion.

文献详情

资源类型:
Pubmed体系:
机构: [1]Cerebrovascular Diseases Research Institute, Xuanwu Hospital of Capital Medical University, [2]Beijing Institute for Brain Disorders, Beijing, [3]Department of Neurology, Yingkou Central Hospital, Liaoning Province, China
出处:
ISSN:

关键词: Blood-brain barrier (BBB) brain ischemia edema erythropoietin (EPO)

摘要:
Exogenously administered recombinant human erythropoietin (rhEPO) has been reported to exhibit neuroprotective effects in animal models. However, there are still have some controversies that combination of EPO and tissue plasminogen activator (tPA) in acute ischemic stroke. In the present study, we investigated the effects of local intra-arterial infusion of low-dose EPO in combination with tPA on focal cerebral ischemic stroke. Sixty adult male Sprague-Dawley rats were randomly divided into five groups, including sham, vehicle, EPO, tPA, and EPO+tPA groups. Rats were subjected to middle cerebral artery occlusion (MCAO) and administrated with EPO (800 U/kg, middle cerebral artery injection), tPA (10 mg/kg, tail vein injection), EPO+tPA, or saline (vehicle) onset of reperfusion. Neurobehavioral deficits, infarct volume, brain edema, the expression of tight junction proteins (Claudin-5, Occludin), and AQP4 were assessed following 2 h ischemia and 24 h reperfusion. The number of apoptotic cells in the periinfarct region was detected by the terminal deoxyribonucleotide transferase dUTP nick end labeling (TUNEL) staining. The neurobehavioral deficits, brain infarct volume, edema volume, TUNEL-positive cells and downregulation of Claudin-5 and Occludin were alleviated by EPO or EPO plus tPA, following the ischemia/reperfusion (I/R) in rats. The EPO and EPO plus tPA both reduced the upregulation of AQP4 in the ischemic brain tissue. Our data demonstrate local intra-arterial infusion of low-dose EPO in combination with tPA protected against focal cerebral ischemia in rats manifested by a decrease in brain edema and blood-brain barrier (BBB) disruption after 2 h ischemia and 24 h reperfusion.

基金:
语种:
PubmedID:
中科院(CAS)分区:
出版当年[2015]版:
最新[2023]版:
大类 | 4 区 医学
小类 | 4 区 临床神经病学 4 区 神经科学
第一作者:
第一作者机构: [1]Cerebrovascular Diseases Research Institute, Xuanwu Hospital of Capital Medical University, [2]Beijing Institute for Brain Disorders, Beijing,
通讯作者:
通讯机构: [*1]Cerebrovascular Diseases Research Institute, Xuanwu Hospital of Capital Medical University,
推荐引用方式(GB/T 7714):
APA:
MLA:

资源点击量:16399 今日访问量:0 总访问量:869 更新日期:2025-01-01 建议使用谷歌、火狐浏览器 常见问题

版权所有©2020 首都医科大学宣武医院 技术支持:重庆聚合科技有限公司 地址:北京市西城区长椿街45号宣武医院