Dihydroisotanshinone I protects against menadione-induced toxicity in a primary culture of rat hepatocytes | |
Ip, SP; Yang, H; Sun, HD![]() | |
刊名 | PLANTA MEDICA
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2002-12-01 | |
卷号 | 68期号:12页码:1077-1081 |
关键词 | Salvia trijuga Lamiaceae dihydroisotanshinone I menadione liver damage free radical scavenger lipid peroxidation |
英文摘要 | Dihydroisotanshinone I is a phenanthrenequinone derivative isolated from the roots of Salvia trijuga Diels. The present study demonstrated the hepatoprotective effect of dihydroisotanshinone I against menadione-induced cytotoxicity in a primary culture of rat hepatocytes. Pretreating the cells with dihydroisotanshinone I at concentrations ranging from 2.5 muM to 20 muM for 24 hours caused dose-dependent protection against hepatotoxicity induced by menadione. Intracellular glutathione level and activity of DT-diaphorase have been suggested to play important roles in menadione-induced cytotoxicity. However, treating the hepatocytes with 20 muM dihydroisotanshinone I for 24 hours did not cause a significant change in glutathione level and DT-diaphorase activity. On the contrary, adding dihydroisotanshinone I to freshly isolated hepatocytes at concentrations between 50 nM to 200 nM inhibited NADH-induced superoxide production dose-dependently as indicated by the decrease of lucigenin-amplified chemiluminescence. In addition, dihydroisotanshinone I at concentrations ranging from 5 muM to 20 muM inhibited tert-butyl hydroperoxide-induced lipid peroxidation dose-dependently in isolated hepatocytes as indicated by the level of malondialdehyde. These results suggest that the protective action of dihydroisotanshinone I against menadione-induced hepatotoxicity is attributed to its antioxidant properties including the free radical scavenging activity and inhibition of lipid peroxidation. |
类目[WOS] | Plant Sciences ; Chemistry, Medicinal ; Pharmacology & Pharmacy |
研究领域[WOS] | Plant Sciences ; Pharmacology & Pharmacy |
关键词[WOS] | INDUCED OXIDATIVE STRESS ; DT-DIAPHORASE ; SCHISANDRIN-B ; CELLS ; HEPATOTOXICITY ; GLUTATHIONE |
收录类别 | SCI |
语种 | 英语 |
WOS记录号 | WOS:000180439100006 |
内容类型 | 期刊论文 |
源URL | [http://ir.kib.ac.cn/handle/151853/23973] ![]() |
专题 | 昆明植物研究所_植物化学与西部植物资源持续利用国家重点实验室 |
作者单位 | 1.Chinese Univ Hong Kong, Sch Chinese Med, Shatin, Hong Kong, Peoples R China 2.Yunnan Univ, Dept Appl Chem, Kunming 650091, Peoples R China 3.Chinese Acad Sci, Kunming Inst Bot, Lab Phytochem, Kunming, Peoples R China |
推荐引用方式 GB/T 7714 | Ip, SP,Yang, H,Sun, HD,et al. Dihydroisotanshinone I protects against menadione-induced toxicity in a primary culture of rat hepatocytes[J]. PLANTA MEDICA,2002,68(12):1077-1081. |
APA | Ip, SP,Yang, H,Sun, HD,&Che, CT.(2002).Dihydroisotanshinone I protects against menadione-induced toxicity in a primary culture of rat hepatocytes.PLANTA MEDICA,68(12),1077-1081. |
MLA | Ip, SP,et al."Dihydroisotanshinone I protects against menadione-induced toxicity in a primary culture of rat hepatocytes".PLANTA MEDICA 68.12(2002):1077-1081. |
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