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Effects of Postconditioning on Neurogenesis and Angiogenesis During the Recovery Phase After Focal Cerebral Ischemia

Effects of Postconditioning on Neurogenesis and Angiogenesis During the Recovery Phase After... Background and Purpose— Postconditioning may be a clinically feasible way to protect the brain after a stroke. However, its effects during the recovery phase post stroke remain to be fully elucidated. Here, we examine the hypothesis that ischemic postconditioning amplifies neurogenesis and angiogenesis during stroke recovery. Methods— Male Sprague–Dawley rats were subjected to 100-minute transient middle cerebral artery occlusion (MCAO) or postconditioning (100-minute middle cerebral artery occlusion plus 10-minute reperfusion plus 10-minute reocclusion). After 2 weeks, infarct volumes, behavioral outcomes, and immunohistochemical markers of neurogenesis and angiogenesis were quantified. Results— Postconditioning significantly reduced infarction and improved neurological outcomes. Concomitantly, brains subjected to postconditioning showed an increase in doublecortin/BrdU and collagen-IV/Ki67-positive cells. Conclusions— These results suggest that therapeutic effects of postconditioning may involve the promotion of neurogenesis and angiogenic remodeling during the recovery phase after focal cerebral ischemia. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Stroke Wolters Kluwer Health

Effects of Postconditioning on Neurogenesis and Angiogenesis During the Recovery Phase After Focal Cerebral Ischemia

Stroke , Volume 46 (9): 2691 – Sep 1, 2015

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References (13)

Publisher
Wolters Kluwer Health
Copyright
© 2015 American Heart Association, Inc.
Subject
13; 129; Brief Reports
ISSN
0039-2499
eISSN
1524-4628
DOI
10.1161/STROKEAHA.115.009070
pmid
26243221
Publisher site
See Article on Publisher Site

Abstract

Background and Purpose— Postconditioning may be a clinically feasible way to protect the brain after a stroke. However, its effects during the recovery phase post stroke remain to be fully elucidated. Here, we examine the hypothesis that ischemic postconditioning amplifies neurogenesis and angiogenesis during stroke recovery. Methods— Male Sprague–Dawley rats were subjected to 100-minute transient middle cerebral artery occlusion (MCAO) or postconditioning (100-minute middle cerebral artery occlusion plus 10-minute reperfusion plus 10-minute reocclusion). After 2 weeks, infarct volumes, behavioral outcomes, and immunohistochemical markers of neurogenesis and angiogenesis were quantified. Results— Postconditioning significantly reduced infarction and improved neurological outcomes. Concomitantly, brains subjected to postconditioning showed an increase in doublecortin/BrdU and collagen-IV/Ki67-positive cells. Conclusions— These results suggest that therapeutic effects of postconditioning may involve the promotion of neurogenesis and angiogenic remodeling during the recovery phase after focal cerebral ischemia.

Journal

StrokeWolters Kluwer Health

Published: Sep 1, 2015

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