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- W2040138826 abstract "Surgical flow augmentation for treatment of cerebral hemodynamic impairment remains controversial. Here, we investigated the benefit of endothelial progenitor cell (EPC) treatment in a rat model of chronic cerebral hypoperfusion. At repeated time points after 3-vessel occlusion (3-VO), animals were treated with 1 × 10 6 Dil-labeled (a) ex vivo-expanded embryonic-EPC (e-EPC), (b) cyclic AMP-differentiated embryonic-endothelial progenitor-derived cells (e-EPDC as biologic control) or, (c) saline. The cerebrovascular reserve capacity (CVRC) was assessed immediately before and on days 7 and 21 after 3-VO. Structural effects were assessed by latex perfusion, immunohistochemistry, and intravital fluorescence video microscopy on day 21. Three-vessel occlusion resulted in a significant impairment of the CVRC with better functional recovery after treatment with e-EPC (16.4 ± 8%) compared with e-EPDC (3.7 ± 8%) or saline (6.4 ± 9%) by day 21 ( P<0.05), which was paralleled by a significant increase in the vessel diameters of the anterior Circle of Willis, a significantly higher number of leptomeningeal anastomoses and higher parenchymal capillary density in e-EPC-treated animals. Interestingly, despite in vivo interaction of e-EPC with the cerebral endothelium, e-EPC incorporation into the cerebral vasculature was not observed. Our results suggest that EPC may serve as a novel therapeutic agent in clinical trials for nonsurgical treatment of chronic cerebral hemodynamic impairment." @default.
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- W2040138826 date "2014-04-30" @default.
- W2040138826 modified "2023-10-01" @default.
- W2040138826 title "Endothelial Progenitor Cells Augment Collateralization and Hemodynamic Rescue in a Model of Chronic Cerebral Ischemia" @default.
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- W2040138826 doi "https://doi.org/10.1038/jcbfm.2014.78" @default.
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