Journal of Ginseng Research

The Korean Society of Ginseng (고려인삼학회)
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Antioxidative Effects of White Ginseng and Red Ginseng on Liver of High Fat Diet-treated Mice

고지방식으로 생육한 생쥐간에서 백삼과 홍삼 추출물의 항산화 효과

  • Published : 2005.09.01
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Abstract

This study was to examine antioxidative effects of ginseng extracts on liver of high fat diet-treated mice. ICR male mice were given high fat diet with red ginseng or white ginseng extracts (500, 1500, 3000 mg/kg/day, orally) for 4 weeks. We also Investigated the relationship between lipid peroxidation and ginseng extracts on the oxidative stress. We measured the levels of malondialdehyde (MDA, a marker of lipid peroxidation), hydrogen peroxide, superoxide dismutase (SOD), glutathione peroxidase (GPx) and glutathione (GSH) in liver tissue. The activities of SOD was generally low in all ginseng extract groups. But the activity of GPx was high in all ginseng extract groups. The hydrogen peroxide contents were similar in almost all groups. The level of GSH was higher in all ginseng extract group in high fat diet (FD) group. The levels of MDA (the end product of lipid peroxidation) were lower in all ginseng extract groups than in FD group. These results that the antioxidant effects of red ginseng and white ginseng extracts prevent oxidative damage by antioxidant effects involving SOD, GPx and increasing the ability of the body to synthesize endogenous antioxidants. It was concluded that ginseng can protect against oxidative stress by high fat diet through its antioxidant properties.

본 연구에서는 high fat diet에 대한 인삼 추출물의 항산화 효과를 알아보기 위해 실험동물로 생쥐를 이용하였다. 대조군은 일반사료만을, FD군은 high fat diet만을 먹였으며, 실험군은 high fat diet와 인삼추출물을 경구 투여한 후 간 조직에서의 SOD, catalase, GPS의 활성 및 MDA 및 $H_2O_2$ 함량 등을 측정함으로서 fat diet독성에 대한 지질과산화와의 상호 관련성, 인삼의 항산화 효소의 효과를 비교 검토하였다. Fat diet 독성에 대한 항산화 효소인 SOD의 활성은 인삼 추출물 군에서 전반적으로 낮았으며, GPx의 활성은 FR500, FR3000군에서 가장 높은 결과를 보였다. 과산화수소 함량은 FD군에서 약간 높았지만, 모든 군에서 거의 유사한 결과를 보였다. 자유라디칼에 의해 생성된 지질과산화의 최종 산물인 MDA의 함량은 FD군을 기준으로 인삼추출물 군에서 모두 낮은 수치를 보였다. 이와 같이 fat diet에 대한 인삼 추출물은 SOD의 활성 증대보다는 자유라디칼 제거제로서 항산화 효과를 보였다고 생각하고, GPx의 직접적인 작용과 생체 내에서 내인성 항산화 물질인 GSH의 합성 능력을 강화시킴으로서 산화적 손상에 대한 방어기전을 향상시키는 결과라고 생각한다.

Keywords

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