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논문 기본 정보

자료유형
학술저널
저자정보
김상찬 (대구한의대학교 한의과대학) 이종록 (대구한의대학교 제약공학과) 박숙자 (대구한의대학교 제약공학과)
저널정보
대한한의학방제학회 대한한의학방제학회지 대한한의학방제학회지 제26권 제3호
발행연도
2018.1
수록면
251 - 259 (9page)

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Objective : Kurarinone is one of the flavonoids isolated from Sophorae Radix with various biological activities including anti-microbial effect. In this study, we investigated the effects of Kurarinone on tert-butyl hydroperoxide (tBHP)-induced oxidative stress finally leading to apoptosis in human hepatoma cell line HepG2. Methods : To determine the effects on cell viability, the cells were exposed to tBHP ($100{\mu}mol/l$) after pretreatment with kurarinone (0.5 and $1{\mu}g/ml$). Cell viability was measured by MTT assay. To reveal the possible mechanism of cytoprotectivity of kurarinone, levels of reactive oxygen species, intracellular glutathione, mitochondrial membrane potential, and expression of caspase were examined. Results : tBHP-induced cell death was due to oxidative stress and the resulting apoptosis. Kurarinone dose-dependently protected cells from apoptosis when determined by MTT and TUNEL assay. Consistent with this observation, decreased expression of pro-caspase 3/9 protein by tBHP was restored by kurarinone. Kurarinone also showed anti-oxidative effects by inhibiting generation of ROS and depletion of GSH in tBHP-stimulated HepG2 cells. In addition, kurarinone significantly recovered disruption of mitochondrial membrane potential (MMP) as a start sign of hepatic apoptosis induced by oxidative stress. Conclusion : From these results, it was concluded that kurarinone protected tBHP-induced hepatotoxicity with anti-oxidative and anti-apoptotic activities. Our results suggest that kurarinone might be beneficial to hepatic disorders caused by oxidative stress.

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