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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2013.1
- 수록면
- 745 - 751 (7page)
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Safflower (Carthamus tinctorius L.) seeds have been used in Korea and China for promoting bone formation and protection. This study was designed to examine the Nrf-2 mediated anti-oxidative effects of Korean and Chinese safflower seeds. Water and ethanol extracts of safflower seeds were treated to RAW 264.7 cells. Nrf-2 transcriptional activity was measured by reporter gene assay and western blot analysis. Semi-quantitive RT-PCR analysis was adopted to measure Nrf-2 dependent gene expressions. Water extracts of safflower seeds have strongly induced the activation of Nrf-2 transcription than ethanol extracts. Especially, water extracts of Korean safflower seeds has more strongly increased the expression of nuclear Nrf-2. Water extracts of Korea and China safflower seeds have also increased the expression of Nrf-2-dependent genes such as GCLC, NQO-1 and HO-1 in RAW 264.7 cells. However, all kinds of safflower seeds extracts did not increase intracellular ROS production. These results demonstrate that the antioxidant effects of safflower seeds are not related with ROS production, rather it is mediated by the direct activation of Nrf-2.
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