Effect of Cyclosporin A on Immediate Early Gene in Rat Global Ischemia and Its Neuroprotection

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The expressions of the immediate early genes, c-fos and c-jun, and their product proteins C-FOS, C-JUN, and P-JUN were examined in the hippocampal CA1 subfield after global ischemia and reperfusion in rats treated with cyclosporin A. More than 90% neuronal cell death was seen in hippocampal CA1 7 days after global ischemia in control animals, but only 5% cell death after ischemia was seen in the CsA-treated animals. The expressions of c-fos and c-jun mRNA in the control animals were detected with an increase from 1 to 48 h after ischemia. On the other hand, they showed significant suppression in the CsA-treated animals. Increased expressions of C-FOS were found 1, 24, and 48 h after reperfusion in the control animals. In the CsA-treated animals C-FOS expression was found to increase, but the expression level reduced to a statistically insignificant level within 48 h after the ischemia. C-JUN and P-JUN expressions increased in control animals, but were almost completely suppressed in the CsA-treated animals. The present study demonstrated that the suppressant effects of CsA on IEGs and their products might have causal relationship to the dramatic protecting effect of the drug against delayed neuronal cell death.<br>

収録刊行物

  • Journal of pharmacological sciences  

    Journal of pharmacological sciences 100(1), 73-81, 2006-01-20 

    The Japanese Pharmacological Society

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各種コード

  • NII論文ID(NAID)
    10018241202
  • NII書誌ID(NCID)
    AA11806667
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13478613
  • NDL 記事登録ID
    7783054
  • NDL 雑誌分類
    ZS51(科学技術--薬学)
  • NDL 請求記号
    Z53-D199
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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