Journal of Physiology & Pathology in Korean Medicine (동의생리병리학회지)

The Physiological Society of Korean Medicine and The Society of Pathology in Korean Medicine (대한동의생리학회·한의병리학회)
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Cytotoxicity of Hydrogen Peroxide and Effects of Rhizoma Gastrodiae Against Hydrogen Peroxide in Mouse Cerebral Neurons

생쥐의 배양 대뇌신경세포에 대한 Hydrogen Peroxide의 세포독성 및 천마의 영향

  • Published : 2002.10.01
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Abstract

To elucidate the toxic effect of oxygen free radicals on cultured mouse cerebral neurons damaged by hydrogen peroxide(H₂O₂)-induced neurotoxicity, we examined the neurotoxicity induced by oxygen radicals by NR assay when cultured cerebral neurons were grown in the media containing various concentrations of H202 for 6 hours. In addition, neuroprotective effects of herb extracts such Rhizoma Gastrodiae(RG) on H202-induced neurotoxicity in cultured cerebral neurons were evaluated after cultured cerebral neurons were preincubated with various concentrations of herb extract, RG for 2 hours before 50uM H₂O₂ for 6 hours. H₂O₂ decreased remarkably cell viability in dose-and time-dependent manner in these cultures, and also herb exract, RG decreased LDH activity of cerebral neurons damaged by H₂O₂. From the above results, it is suggested that H₂O₂ was toxic in cultured cerebral neurons from mouse, and RG was effective in blocking the neurotoxicity induced by oxygen radicals in these cultures.

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