• 동의생리병리학회지
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• 제16권5호
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• pp.955-959
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• 2002

To test the protective effect of herbal medicine on myocardial damage against oxygen free radical-induced myocardiotoxicity, cytotoxicity was examined using MTT, Beating rate and TSARS assay in the presence of water extract of Rhizoma Coptidis. Myocardial toxicity was evaluated in neonatal rat myocardiocytes in cultures. The results of these experiments were obtained as follows: Xanthine oxydase/hypoxanthine resulted in a decrease in viability, beating rate and in a increase in lipid peroxidation in Cultured myocardial cells. Rhizoma Coptidis water extract shows effects of protection from the cardiocyte toxicity induced by xanthine oxydase/hypoxanthine treatment such as increases in beating rate. Rhizoma Coptidis water extract shows effects of protection from the cardiocyte toxicity induced by xanthine oxydase/hypoxanthine treatment such as decreases in lipid peroxidation. These results show that xanthine oxydase/hypoxanthine elicits toxic effects. in cultured myocardial cells derived from neonatal rat, and suggest that water extract of Rhizoma Coptidis is very effective in the prevention of xanthine oxydase/hypoxanthine-induced cardiotoxicity.

• 동의생리병리학회지
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• 제16권6호
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• pp.1117-1121
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• 2002

To test the protective effect of herbal medicine on myocardial damage against oxygen free radical-induced myocardiotoxicity, cytotoxicity was examined using MTT, Beating rate and DNA synthesis assay in the presence of water extract of three kinds of Radix Rehmanniae. Myocardial toxicity was evaluated in neonatal rat myocardiocytes in cultures. The results of these experiments were obtained as follows : Xanthine oxydase/hypoxanthine resulted in a decrease in viability, beating rate and DNA synthesis in cultured myocardial cells. Radix Rehmanniae Recens(生地黃, RRR) water extract shows effects of protection from the cardiocyte toxicity induced by xanthine oxydase/hypoxanthine treatment such as increases in beating rate. Radix Rehmanniae Preparat(熟地黃, RRP) water extract shows effects of protection from the cardiocyte toxicity induced by xanthine oxydase/hypoxanthine treatment such as increases in DNA synthesis. These results show that xanthine oxydase/hypoxanthine elicits toxic effects in cultured myocardial cells derived from neonatal rat, and suggest that water extract of three kinds of Radix Rehmanniae is very effective in the prevention of xanthine oxydase/hypoxanthine-induced cardiotoxicity.

• 대한추나의학회지
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• 제2권1호
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• pp.143-157
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• 2001

Objectives and Methods : To evaluate the mechanism of oxidative damage by xanthine oxydase(XO) and hypoxanthine(HX)-induced oxygen radicals, MTT assay and NR assay were carried out after the cultured mouse spinal sensory neurons were preincubated for 4 hours with various concentrations of XO/HX. And the amount of total protein. neurofilament EIA. lipid peroxidation and LDH activity were measured, to evaluate the protective effect of Herbar Chelidonii(HC) water extract on cultured spinal sensory neurons damaged by XO/HX. after the cultured mouse spinal sensory neurons were preincubated with various concentrations of HC water extract for 3 hours prior to exposure of XO/HX. Results : XO/HX decreased significantly the survival rate of the cultured mouse sensory neurons by NR assay and MTT assay In proportion to concentration and exposed time. In proportion to concentration and exposed time on cultured spinal sensory neurons, XO/HX showed the quantitative decrease of neurofilament by EIA. the decrease of total protein amount by SRB assay and the Increase of lipid peroxidation as well as LDH. HC showed the quantitative increase of neurofilament and total protein, but showed the decrease of lipid peroxidation and LDH activity against the neurotoxicity of XO/HX. Conclusions : From the above results, it is concluded that XO/HX have a neurotoxic effect on cultured spinal sensory neurons and that the herbs extract, such as HC, prevent the toxicity of XO/HX effectively in that they decrease lipid peroxidation and LDH activity.