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The protective effects and potential mechanism of Calpain inhibitor Calpeptin against focal cerebral ischemia–reperfusion injury in rats

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Abstract

To demonstrate the protective effects of Calpeptin as the Calpain inhibitor against focal cerebral ischemia–reperfusion injury in rats and to explore it’s possible mechanism. 96 rats were randomly divided into four groups. The model of middle cerebral artery occlusion was used for the research of focal cerebral ischemia. Using this animal model, the effects of Calpeptin on the neurological functions, infarction volume and infarction volume percentage of brain, Caspase-3 expression and neuronal apoptosis in hippocampal CA1 sector after focal cerebral ischemia–reperfusion injury in rats were investigated. The current results confirmed that Calpeptin as the Calpain inhibitor might paly an important role for neuroprotection against focal cerebral ischemia–reperfusion injury. Calpeptin could reduce the neuronal apoptosis in hippocampal CA1 sector when the rats was subjected to the focal cerebral ischemia–reperfusion, the potential mechanism might be related to the inhibition of the expression of Caspase-3 by Calpeptin. However, it is still unknown to what the exact mechanism of Calpeptin inhibits the activation of Caspase-3 in this process. Therefore, further research needs to be done to unravel the underlying mechanisms in the future.

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Acknowledgement

This work was supported by Medical Science Research Foundation of Jiangsu Province, China (Grant No. H200645) and Science Foundation of the Health Bureau of Wuxi City, China (Grant No. XM0805).

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Authors and Affiliations

  1. Department of Anesthesiology, Affiliated No. 4 Hospital of Soochow University, Wuxi, 214062, People’s Republic of China

    Sheng Peng & Yan Zhang

  2. Intensive Care Unit of the First Affiliated Hospital of Medical College, Shihezi University, Shihezi, 832008, People’s Republic of China

    Zhongshen Kuang, Hang Xu & Qinghong Cheng

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  1. Sheng Peng
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  2. Zhongshen Kuang
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  3. Yan Zhang
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  4. Hang Xu
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Correspondence to Zhongshen Kuang or Yan Zhang.

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Peng, S., Kuang, Z., Zhang, Y. et al. The protective effects and potential mechanism of Calpain inhibitor Calpeptin against focal cerebral ischemia–reperfusion injury in rats. Mol Biol Rep 38, 905–912 (2011). https://doi.org/10.1007/s11033-010-0183-2

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  • DOI: https://doi.org/10.1007/s11033-010-0183-2

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