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• W2190290420 abstract "본 연구에서는 국내산 법제 하수오 메탄올 추출물로부터 생리활성물질을 확인하였고, 추출물의 라디칼 소거능과 LLCPK1 cell을 이용한 산화적 스트레스 개선 효과를 살펴보았다. HPLC 분석 결과 4종의 생리활성물질인 2,3,5,4-tetrahydroxystilbene 2-O-β-D-glucoside, emodin, chrysophanol 및 rhein을 확인하였다. 특히 주요 화합물인 2,3, 5,4-tetrahydroxystilbene 2-O-β-D-glucoside는 115.02 mg/kg이었다. 법제 하수오 추출물의 DPPH, ABTS, hydroxyl 라디칼 소거능은 농도 의존적으로 증가하였다. 추출물의 50 μg/mL 처리 시 DPPH 라디칼 소거능은 48.4%, ABTS 라디칼 소거능은 57.9% 및 hydroxyl 라디칼 소거능은 81.2%로 나타내었다. 한편 LLC-PK1 cell에서 각각의 NO, O₂-, 및 ONOO- 생성물질인 pyrogallol, sodium nitroprusside(SNP) 및 morpholinosydnonimine(SIN-1) 처리에 의해 유도된 산화적 스트레스 상에서 세포 생존율은 감소하였다. 그러나 법제 하수오 메탄올 추출물은 농도 의존적으로 세포 독성을 저해하였다. 추출물의 50 μg/mL 처리 시 세포 생존율은 각각 82.1%(pyrogallol), 89.1%(SNP) 및 77.6%(SIN-1)였다. In this study, we confirmed biological compounds from methanol (MeOH) extract of processed Polygoni Multiflori Radix (PPMR), and the radical scavenging effect and oxidative stress protective activity of MeOH extract of PPMR were investigated under in vitro conditions using LLC-PK1 renal epithelial cells. In HPLC analysis, MeOH extract of PPMR contained four species of biological compounds named 2,3,5,4-tetrahydroxystilbene 2-O-β-D-glucoside, emodin, chrysophanol, and rhein. 2,3,5,4-Tetrahydroxystilbene 2-O-β-D-glucoside was detected as the main compound in PPMR as 115.02 mg/kg. MeOH extract of PPMR showed 2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2-azino-bis (3-ethylbenzthiazoline-6-sulphonic acid) diammonium salt (ABTS), and hydroxyl radical scavenging activities in a concentration-dependent manner. In particular, upon 50 μg/mL of PPMR extract treatment, DPPH, ABTS, and hydroxyl radical scavenging activities were approximately 48.4%, 57.9%, and 81.2%, respectively. LLC-PK1 cell viability declined in response to oxidative stress induced by pyrogallol, sodium nitroprusside (SNP), and morpholinosydnonimine (SIN-1) generators of NO, O₂-, and ONOO-, respectively. However, MeOH extract of PPMR significantly and dose-dependently inhibited oxidative-stressed LLC-PK1 cell cytotoxicity. In fact, upon 50 μg/mL of PPMR extract treatment, LLC-PK1 cell viabilities were approximately 82.1%, 89.1%, and 77.6% compared to stress levels induced by pyrogallol, SNP, and SIN-1, respectively." @default.
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• W2190290420 date "2015-06-30" @default.
• W2190290420 modified "2023-09-26" @default.
• W2190290420 title "Free Radical Scavenging Effect and Oxidative Stress Protective Activity of Domestic Processed Polygoni Multiflori Radix" @default.
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• W2190290420 doi "https://doi.org/10.3746/jkfn.2015.44.6.809" @default.
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