Journal of Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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Screening test for Dendropanax morbifera Leveille extracts: in vitro comparison to ox-LDL-induced lipid accumulation, ethanol-induced fatty liver and HMG-CoA reductase inhibition

황칠나무 추출물의 고지혈증 완화 효과 스크리닝

  • Youn, Ji Sun (Department of Food Science and Technology, Seoul National University of Science and Technology) ;
  • Kim, Min Seo (Department of Food Science and Technology, Seoul National University of Science and Technology) ;
  • Na, Hye Jin (Korea Food Information Institute) ;
  • Jung, Hae Rim (Korea Food Information Institute) ;
  • Song, Chang Khil (Agency for Jeju Plant Resources Dendropanax) ;
  • Kang, So Young (Agency for Jeju Plant Resources Dendropanax) ;
  • Kim, Ji Yeon (Department of Food Science and Technology, Seoul National University of Science and Technology)
  • Received : 2017.10.02
  • Accepted : 2017.11.14
  • Published : 2018.03.31
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Abstract

The objective of this study was to compare the antihyperlipidemic effects of different Dendropanax morbifera leaf extracts in vitro. The extracts differed in terms of specimen age, harvesting season, and extraction method. RAW 264.7 cells were pretreated with these extracts and stimulated by oxidized low-density lipoprotein. Ethanol was used to induce toxicity in HepG2 cells. Cellular lipid accumulation was quantified using oil red O staining in both these cells. The extracts were evaluated for their inhibitory effects on 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase. RAW 264.7 cells treated with the 60% ethanol extract of an 8-year-old specimen harvested in November exhibited the lowest lipid accumulation. The 30% ethanol extract of a 5-year-old specimen harvested in May exhibited the greatest protection from ethanol-induced cytotoxicity in HepG2 cells. The hot water extract of an 8-year-old specimen harvested in May showed the greatest inhibition of HMG-CoA reductase. These results showed that D. morbifera extracts prepared from leaves that are harvested in May possess the highest antihyperlipidemic effects.

이 연구는 고지혈증에 대한 생리 반응의 조절과 관련하여 Dendropanax morbifera 잎의 효과를 비교하기 위한 것이다. 추출물은 표본 연령, 수확시기, 추출 방법에 따라 달랐다. 이 추출물이 처리된 RAW 264.7 세포는 산화 저밀도 지단백질에 의해 자극되었고, 세포 지질 축적은 Oil Red O (ORO) 염색법을 사용하여 정량화되었다. HepG2 세포에서 에탄올을 사용하여 독성을 유도한 다음, 상기와 같이 지질 축적을 정량화하였다. 추출물의 3-hydroxy-3-methylglutaryl coenzyme A (HMG-CoA) reductase 억제 활성을 측정하였다. RAW 264.7 세포에서 가장 지질 축적을 억제한 시료는 8년생 11월 채취 주정 60% 추출물로 처리된 세포에서 관찰되었다. 에탄올로 유도한 HepG2 세포에서 가장 큰 보호효과를 나타낸 시료는 5년생 5월 채취 주정 30% 추출물이었다. 가장 강력한 HMG-CoA reductase 억제 작용을 한 시료는 8년생 5월 채취 열수 100% 추출물이다. 전체적으로 봤을 때 지질 축적 억제는 주정 추출물에서, 콜레스테롤 합성 효소 저해 효과는 열수추출물에서 좋은 효과를 보여 이들 원료를 기반으로 지질 대사 개선 기능성 원료를 개발할 수 있을 것이라 기대한다.

Keywords

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