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Neuroprotective effect of cyanidin-3-O-glucoside anthocyanin in mice with focal cerebral ischemia

Authors
Min, JiangyongYu, Seong-WoonBaek, Seung-HoonNair, Kavitha M.Bae, Ok-NamBhatt, ArchitKassab, MounzerNair, Muraleedharan G.Majid, Arshad
Issue Date
Aug-2011
Publisher
Elsevier BV
Keywords
Permanent middle cerebral artery occlusion; Cyanidin-3-O-glucoside; Neuroprotective; Cytochrome c; Apoptosis-inducing factor
Citation
Neuroscience Letters, v.500, no.3, pp.157 - 161
Indexed
SCIE
SCOPUS
Journal Title
Neuroscience Letters
Volume
500
Number
3
Start Page
157
End Page
161
URI
https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/37244
DOI
10.1016/j.neulet.2011.05.048
ISSN
0304-3940
Abstract
The present study sought to determine the neuroprotective effect of anthocyanin cyanidin-3-O-glucoside (CG), isolated and purified from tart cherries, against permanent middle cerebral artery occlusion (pMCAO) in mice and its potential mechanisms of neuroprotection. C57BL/6 mice subjected to pMCAO were treated with CG orally. Twenty-four hours after pMCAO, neurological scoring was used to evaluate functional outcome. The brains were then excised for measuring infarct volume and brain superoxide levels were determined. In a separate set of experiments, the influence of CG on cytochrome c (cyt c) and apoptosis-inducing factor (AIF) release from mitochondria under oxidative stress were assessed in isolated cortical neurons from adult mouse brains. Infarction volume was attenuated by 27% in mice pre-treated with 2 mg/kg of CG compared to vehicle-treated mice. Delayed treatment with 2 mg/kg of CG also showed 25% reduction in infarct size. Neurological functional outcome was significantly improved in mice pre- or post-treated with CG. Compared to vehicle treated mice CG treated mice had lower levels of brain superoxide. CG also blocked the release of AIF from mitochondria under oxidative stress, but did not inhibit the release of cyt c. Our data show that CG is neuroprotective against pMCAO in mice, and this beneficial effect may be mediated by attenuation of brain superoxide levels after ischemia. CG may also exert its neuroprotective effect by blocking AIF release in mitochondria. (C) 2011 Elsevier Ireland Ltd. All rights reserved.
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