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Park, Chan-Ny,Moon, Byung-Soon,Jeon, Seon-Bok,Kim, Nam-Song,Chung, Sang-Young,Park, Jin-Woo,Park, Rae-Kil The Physiological Society of Korean Medicine and T 2007 동의생리병리학회지 Vol.21 No.4
Sagunjatang (Sagunja), containing Radix Astragali, Radix Ginseng, Fructus Schizandrae, Radix Ophiopogonis and Radix Glycyrrhizae, has been used as a prescription for ischemic heart and brain diseases in Korean traditional medicine. This study was designed to investigate the protective mechanisms of Sagunja on $H_2O_2$-induced cytotoxicity of H9c2 cardiomyocytes. Treatment with $H_2O_2$ resulted in death of H9c2 cells, characterized by apparent apoptotic features, including the fragmentation of nucleus and increase in sub-GO/G1fraction of cell cycle. However, Sagunja markedly suppressed the apoptotic characteristics of H9c2 cells induced by $H_2O_2$ with decrease of intracellular peroxide level. In addition, Sagunja suppressed the features of mitochondrial dysfunction, including change of mitochondrial membrane potential, in $H_2O_2$- treated cells. Additionally, Sagunja induced the expression of HO-1 protein in both time-and dose-dependent manner. The role of HO-1 in ROS-scavenging activity of Sagunja is proposed.
Antioxidant and Cytotoxicity Effects of Luteolin
Park Jin-Ny,Kang Kyoung-Ah,Zhang Rui,Piao Mei Jing,Park So-Yoon,Kim Ju-Sun,Kang Sam-Sik,Hyun Jin-Won Korean Society of ToxicologyKorea Environmental Mu 2006 Toxicological Research Vol.22 No.4
Flavonoids are polyphenolic compounds that are ubiquitous in plants. They have been shown to possess a variety of biological activities, such as antioxidant and anticancer. Reactive oxygen species (ROS) lead to damages of cellular molecules and it is the one of various factors to induce cancer. The one of flavonoids, Luteolin, was found to scavenge 1,1-diphenyl-2-piculhydrazyl (DPPH) radical and intracellular reactive oxygen species (ROS). Moreover luteolin showed protection on hamster lung fibroblast cells (V79-4 cell) damage induced by $H_2O_2$. And then it was investigated whether it may show cytotoxicity effect against various cancer cells by MTT, Luteolin at $10{\mu}g/ml$ showed the cell viability of 63.2%, 34.7%, 18.4% and 71.4% against NCl-H460, HeLa, U937 and MCF-7, respectively. As a result, luteolin shows more sensitive to U937 cells among the tested cancer cell lines. In summary, luteolin has antioxidant and cytotoxicity effect or various cancer cell lines.