• Journal of Physiology & Pathology in Korean Medicine
• /
• v.17 no.2
• /
• pp.374-379
• /
• 2003

To evaluate the mechanism of oxidative damage by Xanthine oxidase(XO) and hypoxanthine(HX)-induced oxygen radicals, XTT assay was carried out. Neurofilament EIA and PKC activity were measured to evaluate the protective effect of Jingansikpung-tang(JST) and Gamijingansikpung-tang(GJST) water extract on cultured spinal sensory neurons damaged by XO/HX, after the cultured mouse spinal sensory neurons were preincubated with various concentrations of JST and GJST water extract for 3 hours prior to exposure of XO/HX. The results were XO/HX decreased significantly, in proportion to concentration and exposed time, the survival rate of the cultured mouse sensory neurons on XTT assay. And in proportion to concentration and exposed time on cultured spinal sensory neurons, XO/HX showed the quantitative decrease of neurofilament by EIA, increase of PKC activity, but JST and GJST showed the neuroprotective effects against decrease of neurofilament and increase of PKC activity by XO/HX. From the above results, it is concluded that XO/HX have a neurotoxic effect on cultured spinal sensory neurons and the herbs water extract, such as JST and GJST prevent the toxicity of XO/HX effectively.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.16 no.2
• /
• pp.353-358
• /
• 2002

To test the protective effect of herbal medicine against oxygen free radical-induced myocardiotoxicity, cytotoxicity of xanthine oxidase/hypoxanthine (XO/HX) was examined using MTT, TBARS, and beating rate assay in the presence of water extract of Sujeom-san(SJS) or single consituents of its prescription. Myocardial toxicity was evaluated in neonatal rat myocardiocytes in cultures. In the present paper, XO/HX resulted in a decrease in viability and beating rate and increases in lipid peroxidation in cultured myocardial cells. In the effect of SJS water extract, it showed effects from the cardiocytotoxicity induced by XO/HX treatment such as increases in beating rate and decreases in lipid peroxidation. In the effect of Rhizoma Corydalis (RC), Faeces Trogopterori (FT), Fructus Amomi Tsaoko (FAT) and Myrrha on the cardiocytotoxicity, they were significantly effective in blocking the XO/HX-induced cardiocytotoxicity by increase of beating rate in FAT and FT group as well as decrease of lipid peroxidation in FT and RC group. These results show that oxygen free radical elicits toxic effects in cultured myocardial cells derived from neonatal rat, and suggest that water extract of Sujeomsan, Rhizoma Corydalis, Faeces Trogopterori, Fructus Amomi Tsaoko or Myrrha is very effective in the prevention of xanthine oxidase/hypoxanthine- induced cardiotoxicity.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.17 no.1
• /
• pp.71-76
• /
• 2003

To test the protective effect of Radix Curcumae Aromaticae (RCA) on the damage of cardiac endothelial cells by xanthine oxidase (XO)/hypoxanthine (HX)-induced oxygen free radical, Neutral Red (NR), thiobarbituric acid reactive substances (TSARS), and DNA synthesis assay were used in the presence of RCA extract. The results of these experiments were obtained as follows ; Cardiac endothelial cells treated with XO/HX showed the cytotoxicity such as decreases in viability and DNA synthesis, a increase in lipid peroxidation. Cardiac endothelial cells pretreated with RCA extract protected the increase of lipid peroxidation by XO/HX. Cardiac endothelial cells pretreated with RCA extract inhibited the decrease of DNA synthesis by XO/HX. These results show that XO/HX elicits toxic effects in cultured cardiac endothelial cells derived from neonatal rat, and suggest that RCA extract is very effective in the prevention of XO/HX-induced toxicity.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.17 no.2
• /
• pp.486-492
• /
• 2003

To certify the protective effect of herbal medicine on myocardial damage against oxygen free radical-induced myocardiotoxicity, cytotoxicity was measured using by MTT assay, LDH activity and thiobarbituric acid reactive substances(TBARS) assay in the presence of Guaruhaebaekbaekju-tang(GHBT) extracts or single constituents of this prescription, Myocardial toxicity was evaluated in neonatal rat myocardiocytes in cultures. In the present study, xanthine oxidase/hypoxanthine (XO/HX) resulted in a decrease in cell viability, an increase in LDH activity in culture medium and lipid peroxidation in cultured myocardial cells, In the effect of GHBT extract, it showed the prevention from the XO/HX-induced cardiotoxicity such as the decrease of LDH activity and lipid peroxidation. In the protective effect of Fructus Trichosanthis (FT) and Bulbus Allii Macrostemi (BAM), all the extracts were significantly effective in the protection of XO/HX-induced cardiotoxocity in cultured myocardial cells. From these results, they show that XO/HX is cardiotoxic in cultured myocardial cells derived from neonatal rats, and it suggests that GHBT, FT and BAM extracts are positively effective in the blocking XO/HX-induced cardiotoxicity.

• Journal of Sasang Constitutional Medicine
• /
• v.14 no.3
• /
• pp.132-145
• /
• 2002

The purpose of this study is to examine the toxic effects caused by xanthine oxidase/hypoxanthine(XO/HX) and the effects of herbal extracts such as Cheongsimyeonjatang(CYT) on the treatment of the toxic effects. For this purpose, experiments with the cultured hippocampal cells from new born mice were done. The results of these experiments were as follows. 1. XO/HX, a oxygen radical-generating system, decreased the survival rates of the cultured cells on MTT assay and NR assay, protein synthesis, and amounts of neurofilaments. 2. CYT have the efficacy of increasing protein synthesis decreased by XO/HX. 3. CYT have the efficacy. of increasing the amount of neurofilaments decreased by XO/HX. From the above results, it is suggested that Cheongsimyeonjatang (CYT) have marked efficacy as a protection for the damages caused by the XO/HX-mediated oxidative stress.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.17 no.2
• /
• pp.352-355
• /
• 2003

To investigate the protective effect of Gamdu-tang(GDT) and its constituents. Radix Glycyrrhizae(RG) and Semen Glycine(SG) on the damage of cardiac endothelial cells by xanthine oxidase (XO)/hypoxanthine (HX)-induced oxygen free radical, Neutral Red (NR) and DNA synthesis assay were used. The results were obtained as follows ; Cardiac endothelial cells treated with XO/HX showed the cytotoxicity such as decreases in viability and DNA synthesis. Cardiac endothelial cells pretreated with GDT extracts were not showed the decrease of DNA synthesis by XO/HX, These results show that XO/HX elicits toxic effects in cultured cardiac endothelial cells derived from neonatal rat, and suggest that GDT extract is very effective in the prevention of XO/HX-induced toxicity.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.17 no.4
• /
• pp.952-957
• /
• 2003

To certify the protective effect of herbal medicine against oxygen free radical-induced myocardiotoxicity, cytotoxicity was measured using LDH activity and TBARS assay in the presence of Jisilhaebaekgyejitang(JHGT) extracts or single constituents of this prescription, In the present study, xanthine oxidase/hypoxanthine (XO/HX) resulted in a cell damage such as increases in LDH activity in culture medium and lipid peroxidation in cultured myocardial cells. In the effect of JHGT extract and its single constituents, which are Fructus Ponciri Seu Aurantii Immaturus (FPSAI), Cortex Magnoliae Officinalis (CMO), Bulbus Allii Macrostemi (BAM), Ramulus Cinnamomi (RC) and Fructus Trichosanthis (FT), they showed the prevention from the XO/HX-induced cardiotoxicity by the decrease of LDH activity and lipid peroxidation. From these results, they show that XO/HX is cardiotoxic in cultured myocardial cells derived from neonatal rat, and it suggests that JHGT, FPSAI, PT, CMO, BAM, RC and FT extracts are positively effective in the blocking in XO/HX-induced cardiotoxicity.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.17 no.4
• /
• pp.1008-1012
• /
• 2003

In order to evaluate the cytotoxic effect of reactive oxygen species(AOS), the cell viability was measured by MTT assay after cultured mouse hippocampal neurons were treated with various concentrations of xanthine oxidase(XO) and hypoxanthine (HX) for 5 hours. And also, the protective effect of Salviae Mutiorrhizae Radix(SMR) on XO/HX-induced neurotoxicity was examined in these cultures. XO/HX significantly decreased cell viability in dose-and time dependent manners when cultured mouse hippocampal neurons were treated with 5～40 mU/ml XO for 5 hours. In the protective effect of SMA, SMR increased cell viability dose-dependently after cultured mouse hippocampal neurons were preincubated with 30～120 ㎍/ml SMR for 2 hours. From these results, it is suggested that XO/HX is toxic on cultured mouse hippocampal neurons, and herbe medicine such as SMR is very effective in blocking the cytotoxicity induced by AOS.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.17 no.1
• /
• pp.220-224
• /
• 2003

To test the protective effect of Sophorae Radix (SR) on the damage of cardiac endothelial cells by xanthine oxidase (XO)/hypoxanthine (HX)-induced oxygen tree radical, Neutral Red (NR), lactate dyhydrogenase (LDH), and c-fos immunopositive cells assay were used in the presence of SR extract. The results of these experiments were obtained as follows ; Cardiac endothelial cells treated with XO/HX showed the cytotoxicity such as a decrease in viability, and increases in LDH activity and c-fos immunopositive cells. Cardiac endothelial cells pretreated with SR extract protected the increase of LDH activity. Alos, cardiac endothelial cells pretreated with SR extract inhibited the increase of c-fos immunopositive cells. These results show that XO/HX induces toxic effects in cultured cardiac endothelial cells derived from neonatal rat, and suggest that SR extract is very effective in the prevention of XO/HX-induced toxicity.

• Journal of Physiology & Pathology in Korean Medicine
• /
• v.16 no.2
• /
• pp.289-295
• /
• 2002

To certify the protective effect of herbal medicine against oxygen free radical-induced myocardiotoxicity, cytotoxicity was measured using MTT, LDH activity and Beating rate assay in the presence of Guaruhaebaekbanha-tang(GHBT) extracts or single constituents of this prescription. Myocardial toxicity was evaluated in neonatal rat myocardiocytes in cultures. In the present study, xanthine oxidase/hypoxanthine(XO/HX) resulted in a decrease in cell viability, increases in LDH activity in culture medium and decreases in beating rate in cultured myocardial cells. In the effect of GHBT extract, it showed the prevention from the XO/HX-induced cardiotoxicity by the increases of cell viability and beating rate as well as the decrease of LDH activity. In the protective effect of Fructus Trichosanthis(FT), Bulbus Allii Macrostemi(BAM) and Rhizoma Pinelliae(RP), all the extracts were significantly effective in the protection of XO/HX-induced cardiotoxocity in cultured myocardial cells by the increase of beating rate as well as th decrease of LDH activity. From these results, they show that XO/HX is cardiotoxic in cultured myocardial cells derived from neonatal rat, and it suggests that GHBT, FT, SAM, RP extracts are positively effective in the blocking in XO/HX-induced cardiotoxicity.