Papers

Aug, 2018

Therapeutic Effects of Pretreatment with Tocovid on Oxidative Stress in Postischemic Mice Brain

JOURNAL OF STROKE & CEREBROVASCULAR DISEASES
  • Jingwei Shang
  • Hongjing Yan
  • Yang Jiao
  • Yasuyuki Ohta
  • Xia Liu
  • Xianghong Li
  • Ryuta Morihara
  • Yumiko Nakano
  • Yusuke Fukui
  • Xiaowen Shi
  • Yong Huang
  • Tian Feng
  • Mami Takemoto
  • Kota Sato
  • Nozomi Hishikawa
  • Toru Yamashita
  • Koji Abe
  • Display all

Volume
27
Number
8
First page
2096
Last page
2105
Language
English
Publishing type
Research paper (scientific journal)
DOI
10.1016/j.jstrokecerebrovasdis.2018.03.012
Publisher
ELSEVIER SCIENCE BV

Background: Dietary supplement is an attempt to reduce the risk of ischemic stroke in high-risk population. A new mixed vitamin E-Tocovid that mainly contains tocotrienols other than tocopherol, attenuated the progression of white matter lesions by oral in humans. However, the effect of Tocovid on ischemic stroke has not been examined. In the present study, we assessed the therapeutic effects of Tocovid pretreatment on transient middle cerebral artery occlusion (tMCAO) in mice. Materials and Methods: After pretreatment with Tocovid (200 mg/kg/d) or vehicle for 1 month, 60-minute tMCAO was performed, and these mice were examined at 1 day, 3 days, and 7 days after reperfusion. We histologically assessed the effects of Tocovid pretreatment on the expressive changes of oxidative stress markers, cleaved caspase-3, and LC3-II after tMCAO in mice. Results: We observed that Tocovid pretreatment significantly improved the rotarod time, reduced infarct volume, decreased the number of 4-HNE, nitrotyrosine, and 8-OhdG positive cells, inhibited advanced glycation end products biomarkers RAGE, CMA, and CML expressions, and increased Nrf2 and MRP1 levels with GSSG/GSH ratio decrease. Furthermore, Tocovid pretreatment greatly decreased cleaved caspase-3 and LC3-II expreisions after tMCAO. Conclusions: The present study obviously demonstrated that Tocovid pretreatment showed neuroprotective effects against oxidative stress and at least in part by antiapoptotic/autophagic cell death in ischemic mice brain.

Link information
DOI
https://doi.org/10.1016/j.jstrokecerebrovasdis.2018.03.012
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000438139600015&DestApp=WOS_CPL
ID information
  • DOI : 10.1016/j.jstrokecerebrovasdis.2018.03.012
  • ISSN : 1052-3057
  • eISSN : 1532-8511
  • Web of Science ID : WOS:000438139600015

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