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Polydatin attenuates neuronal loss via reducing neuroinflammation and oxidative stress in rat MCAO models
Frontiers in Pharmacology
  • Fawad Ali Shah, Peking University
  • Lina Al Kury, Zayed University
  • Tao Li, Xi'an Jiaotong University
  • Alam Zeb, Riphah International University
  • Phil Ok Koh, Gyeongsang National University
  • Fang Liu, Centre for Addiction and Mental Health
  • Qiang Zhou, Peking University
  • Ishtiaq Hussain, AUST
  • Arif Ullah Khan, Riphah International University
  • Yuhua Jiang, Second Hospital of Shandong University
  • Shupeng Li, Peking University
Document Type
Article
Publication Date
1-1-2019
Abstract

Copyright © 2019 Shah, Kury, Li, Zeb, Koh, Liu, Zhou, Hussain, Khan, Jiang and Li. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms. Ischemic stroke is characterized by permanent or transient obstruction of blood flow, which initiates a cascading pathological process, starting from acute ATP loss and ionic imbalance to subsequent membrane depolarization, glutamate excitotoxicity, and calcium overload. These initial events are followed by neuroinflammation and oxidative stress, eventually causing neuronal neurosis and apoptosis. Complicated interplays exist between these steps happening across various stages, which not only represent the complicated nature of ischemic pathology but also warrant a detailed delineation of the underlying molecular mechanisms to develop better therapeutic options. In the present study, we examined the neuroprotective effects of polydatin against ischemic brain injury using a rat model of permanent middle cerebral artery occlusion (MCAO). Our results demonstrated that polydatin treatment reduced the infarction volume and mitigated the neurobehavioral deficits, sequentially rescued neuronal apoptosis. Ischemic stroke induced an elevation of neuroinflammation and reactive oxygen species, which could be attenuated by polydatin via the reduced activation of p38 mitogen-activated protein kinase and c-Jun N-terminal kinase. In addition, polydatin upregulated the endogenous antioxidant nuclear factor erythroid 2-related factor 2, heme oxygenase-1, the thioredoxin pathway, and eventually reversed ischemic-stroke-induced elevation of ROS and inflammation in ischemic cortical tissue. The diverse and broad actions of polydatin suggested that it could be a multiple targeting neuroprotective agent in ameliorating the detrimental effects of MCAO, such as neuroinflammation, oxidative stress, and neuronal apoptosis. As repetitive clinical trials of neuroprotectants targeting a single step of stroke pathological process have failed previously, our results suggested that a neuroprotective strategy of acting at different stages may be more advantageous to intervene in the vicious cycles in MCAO.

Publisher
Frontiers Media S.A.
Keywords
  • Ischemic stroke,
  • Neuroinflammation,
  • Neuronal death,
  • Oxidative stress,
  • Polydatin
Scopus ID

85069793282

Creative Commons License
Creative Commons Attribution 4.0 International
Indexed in Scopus
Yes
Open Access
Yes
Open Access Type
Gold: This publication is openly available in an open access journal/series
Citation Information
Fawad Ali Shah, Lina Al Kury, Tao Li, Alam Zeb, et al.. "Polydatin attenuates neuronal loss via reducing neuroinflammation and oxidative stress in rat MCAO models" Frontiers in Pharmacology Vol. 10 Iss. JUN (2019) p. 663 ISSN: <p><a href="https://v2.sherpa.ac.uk/id/publication/issn/1663-9812" target="_blank">1663-9812</a></p>
Available at: http://works.bepress.com/lina-alkury/38/