생명과학회지 (Journal of Life Science)

  • 제17권1호
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  • Pages.143-149
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  • 2007
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  • 1225-9918(pISSN)
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  • 2287-3406(eISSN)
한국생명과학회 (Korean Society of Life Science)
권호 표지
DOI QR코드

DOI QR Code

흰쥐 대뇌세포의 저산소증 모델에서 황금(黃芩)에 의한 신경세포사 저해 효과

Inhibition effect of neuronal death by Scutellaria baicalensis GEORGI Water-Extract in a Hypoxic Model of Cultured Rat Cortical Cells

  • 김완식 (동국대학교 한의과대학 내과학교실) ;
  • 정승현 (동국대학교 한의과대학 내과학교실) ;
  • 신길조 (동국대학교 한의과대학 내과학교실) ;
  • 문일수 (동국대학교 의과대학 해부학교실) ;
  • 이원철 (동국대학교 한의과대학 내과학교실)
  • 발행 : 2007.01.29
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초록

Scutellaria baicalensis GEORGI(SB) is used in oriental medicine for the treatment of incipient strokes. Although it has been reported that SB is neuroprotective in a hypoxia model, its mechanism is poorly understood. Here, we investigated the effect of SB on the modulation of retinoic acid receptor a (RARa). Rat cerebrocortical cells were grown in neurobasal medium. On DIV12 cells were treated with SB $(20{\mu}g/ml)$ and given a hypoxic shock $(2%\;O_2/5%\;CO_2,\;3hr)$ on DIV14. In situ hybridization using cRNA probe revealed that RARa mRNA punctae are distributed, in addition to nucleus, throughout neuronal dendrites, where SB upregulated its density by 69.8% (p=0.001) and 129.8% (p=0.001) in both normoxia and hypoxia, respectively. At the protein level, SB upregulated RARa in the neuronal soma by 78.8% (p=0.004) and 23.6% (p=0.001) in both normoxia and hypoxia, respectively. These results indicate that SB upregulates RARa in both normoxia and hypoxia, which might contribute to the neuroprotection.

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