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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Effects of Rhizoma Gastrodiae on Cultured Mouse Spinal Motor Neurons Damaged by Hydrogen Peroxide

Hydrogen Peroxide에 의하여 손상된 배양 척수운동신경세포에 대한 천마의 영향에 관한 연구

  • Published : 2002.02.01
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Abstract

To elucidate the toxic effect of oxygen free radicals on cultured mouse spinal motor neurons damaged by hydrogen peroxide(H₂O₂)-induced neurotoxicity, we examined the neurotoxicity induced by oxygen radicals by NR assay when cultured spinal motor neurons were grown in the medium containing various concentrations of H₂O₂ for 6 hours. In addition, neuroprotective effects of herb extracts such Rhizoma Gastrodiae(RG), on H₂O₂-induced neurotoxicity in cultured spinal motor neurons were evaluated after cultured spinal motor 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 extract, RG increased cell viability of spinal motor neurons damaged by H₂O₂ in these cultures. From the above results, it is suggested that H₂O₂ was toxic in cultured spinal motor neurons derived from mouse, and RG was effective in blocking the neurotoxicity induced by oxidative stress in these cultures.

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