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KMID : 0613820180280091048
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Journal of Life Science
2018 Volume.28 No. 9 p.1048 ~ p.1055
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Biological Activity of Oenothera Biennis Seed Extracts
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Cho Hyun-Dong
Kim Du-Hyun
Kim Min-Geun
Lee Yong-Seok
Seo Kwon-Il
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Abstract
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In the current study, comparisons of Oenothera Biennis seed extracts with water, ethanol, methanol, and 70% ethanol in their total polyphenolics contents, anti-oxidant, anti-neurotoxicity, anti-cancer, and immune-modulatory activities were investigated. Compared with other extracts, those concentrations of total phenolics and flavonoids were the highest in MeOH extract (31.90 mg GAE/g and 20.66 mg QE/g). The radical scavenging and reducing power activities were dose-dependently increased by treatment of O. Biennis seed water, EtOH, MeOH, and 70% EtOH extracts. Furthermore, pretreatment of water, EtOH, and MeOH extracts significantly reduced glutamate-induced cytotoxicity in HT22 hipocampal neuron cells. In the case of cancer cells, MeOH extracts showed lower IC50 values in HepG2 (74.21 μg/ml), A549 (188.24 μg/ml), MCF-7 (186.42 μg/ml), and B16 (101.80 μg/ml) than other extracts, where those water (101.96 μg/ml) and EtOH (788.39 μg/ml) extracts showed the lowest IC50 activity in HT-29 and PC-3 cells, respectively. O. Biennis seed extracts did not show any cytotoxicity in RAW 264.7 macrophages at the concentration of 1-10 μg/ml, whereas 70% EtOH extract dose-dependently enhanced nitric oxide (NO) production in RAW 264.7 cells. Overall, we evaluated that various bioactive potentials of O. Biennis seed extracts which would relate with phenolic compounds abundance, thus these can be useful to future developments as functional food ingredients and natural medicines.
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KEYWORD
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Anti-cancer, anti-neurotoxicity, anti-oxidant, immune-modulatory activity, Oenothera Biennis seed extracts
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