Estradiol augments peri-infarct cerebral vascular density in experimental stroke

被引:19
作者
Ardelt, Agnieszka A.
Anjum, Naseem
Rajneesh, Kiran F.
Kulesza, Piotr
Koehler, Raymond C.
机构
[1] Univ Alabama, Dept Neurol, Comprehens Stroke Ctr, Birmingham, AL 35294 USA
[2] Univ Alabama, Dept Pathol, Birmingham, AL 35294 USA
[3] Johns Hopkins Univ, Dept Anesthesiol & Crit Care Med, Baltimore, MD 21218 USA
关键词
estradiol; angiogenesis; stroke; infarct; penumbra; rat;
D O I
10.1016/j.expneurol.2007.04.002
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Peri-infarct increase of vascular density has been observed in animals and in humans with ischemic stroke. Increased peri-infarct vascular density correlates with improved functional outcome after stroke. We hypothesized that pre-treatment with estradiol will increase post-ischemic peri-infarct capillary density in a rat model of transient ischemic stroke. Estradiol, compared to placebo, augmented post-ischemic peri-infarct vascular density by 22% 10 days after stroke. Recovery of forelimb function was not improved with estradiol treatment on day three and nine poststroke. Loss of estradiol may limit repair in the peri-infarct region by limiting angiogenesis, but functional significance in stroke recovery requires further investigation. (C)) 2007 Elsevier Inc. All rights reserved.
引用
收藏
页码:95 / 100
页数:6
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