H9c2 심근세포에서 제주모시풀(Boehmeria quelpaertense)로부터 분리된 flavonoids의 H2O2로 유도된 독성 보호 효과
Protective Effects of Flavonoids from the Boehmeria quelpaertense against H2O2-Induced Cytotoxicity in H9c2 Cardiomyoblast Cells
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초록
제주모시풀에서 각종 column chromatography법을 이용하여 2종의 flavonoid를 분리하여, 1H-, 13C-NMR, LC ESI-ITTOF MS를 통해 구조동정 할 수 있었다. 분리된 물질이 심장세포에서 높은 항산화 활성을 가지고 있으며, 활성 산소종의 작용기전 연구 및 심근경색 질환의 예방과 치료에 효과적으로 사용할 수 있는 기초자료가 될 것으로 사료된다.
Abstract
As a part of an infrastructure project on medicinal herb-based remedies, we conducted a phytohemical investigation of the 100% MeOH extract from the aerial part of Boehmeria quelpaertense; our findings resulted in the isolation of flavonoids (1-2), isoquercitrin (1) and hyperoside (2). The identification and structural elucidation of these compounds were based on 1 H-, 13 C-NMR, and LC ESI IT-TOF MS data. All the compounds isolated from this plant were reported for the first time. In this study, we examined the antioxidant activity of the 1 and 2 on the hydrogen peroxide (H2O2)-induced oxidative stress in a Rat Cardiomyoblast cell line (H9c2). The pretreatment of the flavonoids showed that it protects against H2O2-mediated cell death in the H9c2 cell line. Also, it decreases the intracellular reactive oxygen species (ROS) levels by the flavonoids in the H2O2-treated H9c2 cell line. These results showed that the 1 and 2 are a source of antioxidants. As a result, they might be helpful in preventing the progress of various oxidative stress mediated diseases, including myocardial infarction. Key words - Anti-oxidant, Boehmeria quelpaertense, Flavonoid, Structure elucidation, Urticaceae
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