Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Cholesterol Improvement Effects of Co-treatment with Black Raspberry and Red Ginseng Extracts in Mice Fed a High Cholesterol Diet

고콜레스테롤 식이 투여 마우스에서 복분자 미숙과 추출물과 홍삼농축액 복합 투여의 콜레스테롤 개선 효과

  • Received : 2014.06.13
  • Accepted : 2014.08.05
  • Published : 2014.10.31
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Abstract

We examined the effects of unripe black raspberry (UBR) and red ginseng (RG) extracts on cholesterol improvement in C57BL/6J mice fed a HCD (high cholesterol diet) for 12 weeks. Hepatic total lipid and total cholesterol contents were significantly induced in hyperlipidemic mice. However, supplementation with UBR, RG and simvastatin effectively reduced these lipid profiles. Further, UBR and co-treatment with UBR and RG increased expression of LDL receptor, SREBP2, and SR-B1 mRNA compared with HCD. The ApoB/ApoA1 ratio was reduced by co-treatment with UBR and RG compared to treatment with UBR. In addition, histopathologic evaluation showed that co-treatment with UBR and RG suppressed lipid accumulation as well as FAS and leptin expression in plasma. These results indicate that co-treatment with UBR and RG may be useful for the prevention of hypercholesterolemia.

본 연구는 복분자 미숙과 물 추출물과 홍삼농축액으로 C57BL/6J 수컷 마우스를 이용하여 콜레스테롤 억제 효과 및 지질대사에 미치는 영향을 살펴보고, 기능성 식품으로의 가능성을 알아보았다. 실험동물은 C57BL/6J 수컷 마우스를 사용하였으며, 12주 동안 고콜레스테롤 식이를 급여하면서 복분자 미숙과 물 추출물과 홍삼농축액을 경구투여 하였다. 그 결과로 고콜레스테롤 식이군과 비교하였을 때 복분자 미숙과 추출물과 홍삼농축액 식이군에서 체중증가량, 식이 섭취량에는 변화가 없었다. 콜레스테롤 합성의 가장 중요한 기작인 LDL receptor와 SREBP2 발현에서는 복분자 미숙과 추출물 투여군과 복분자와 홍삼 복합 투여군 모두 유의적으로 증가하여 세포 안으로의 LDL 흡수를 촉진시킴으로써 체내 콜레스테롤을 낮추는 것으로 판단된다. HDL 관련 유전자 발현에서도 복분자 미숙과 추출물 투여군과 복분자와 홍삼 복합 투여군에서 HDL uptake 유전자인 SR-B1의 발현을 증가시켜 콜레스테롤 개선 효과를 보였다. 또한 간의 형태학적 변화에서는 고콜레스테롤 식이군과 비교하였을 때 복분자 미숙과 물 추출물과 홍삼농축액 복합 투여군에서 지방 형성이 현저히 줄어들었고, leptin과 FAS의 농도를 측정한 결과 유의적으로 감소하였다. 결과적으로 복분자 미숙과 물 추출물과 홍삼농축액 복합 투여가 콜레스테롤과 고지혈증 예방에 긍정적인 효과를 보일 것으로 사료된다.

Keywords

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