Scorpion Venom Heat-Resistant Peptide is Neuroprotective against Cerebral Ischemia-Reperfusion Injury in Association with the NMDA-MAPK Pathway

  • Xu-Gang Wang
  • Dan-Dan Zhu
  • Na Li
  • Yue-Lin Huang
  • Ying-Zi Wang
  • Ting Zhang
  • Chen-Mei Wang
  • Bin Wang
  • Yan Peng
  • Bi-Ying Ge
  • Shao LiEmail author
  • Jie ZhaoEmail author
Original Article


Scorpion venom heat-resistant peptide (SVHRP) is a component purified from Buthus martensii Karsch scorpion venom. Our previous studies have shown that SVHRP is neuroprotective in models of Alzheimer’s disease and Parkinson’s disease. The present study aimed to explore the potential neuroprotective effects of SVHRP on cerebral ischemia/reperfusion (I/R) injury, using a mouse model of middle cerebral artery occlusion/reperfusion (MCAO/R) and a cellular model of oxygen-glucose deprivation/reoxygenation (OGD/R). Our results showed that SVHRP treatment decreased the neurological deficit scores, edema formation, infarct volume and neuronal loss in the MCAO/R mice, and protected primary neurons against OGD/R insult. SVHRP pretreatment suppressed the alterations in protein levels of N-methyl-D-aspartate receptors (NMDARs) and phosphorylated p38 MAPK as well as some proinflammatory factors in both the animal and cellular models. These results suggest that SVHRP has neuroprotective effects against cerebral I/R injury, which might be associated with inhibition of the NMDA-MAPK-mediated excitotoxicity.


Scorpion venom heat-resistant peptide Cerebral ischemia/reperfusion injury Neuroprotection NMDARs p38 MAPK 



This work was supported by grants from National Natural Science Foundation of China (81571061 and 81671061), the Scientific Study Project for Institutes of Higher Learning, Ministry of Education, Liaoning Province, China (LZ2017001), Liaoning Provincial Key R&D Program (2019JH2/10300043) and the Liaoning Revitalization Talents Program (XLYC1808031).

Conflict of interest

All authors claim that there are no conflicts of interest.


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Copyright information

© Shanghai Institutes for Biological Sciences, CAS 2019

Authors and Affiliations

  • Xu-Gang Wang
    • 1
    • 2
    • 3
  • Dan-Dan Zhu
    • 1
    • 3
  • Na Li
    • 2
  • Yue-Lin Huang
    • 1
  • Ying-Zi Wang
    • 1
    • 3
  • Ting Zhang
    • 1
  • Chen-Mei Wang
    • 1
  • Bin Wang
    • 1
  • Yan Peng
    • 1
  • Bi-Ying Ge
    • 1
  • Shao Li
    • 1
    • 2
    Email author
  • Jie Zhao
    • 1
    • 2
    Email author
  1. 1.Liaoning Provincial Key Laboratory of Cerebral Diseases, Department of Physiology, College of Basic Medical SciencesDalian Medical UniversityDalianChina
  2. 2.National-Local Joint Engineering Research Center for Drug-Research and Development of Neurodegenerative DiseasesDalian Medical UniversityDalianChina
  3. 3.The Second Hospital of Dalian Medical UniversityDalianChina

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