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

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Antihyperlipidemic Effect of Diet Containing Portulaca oleracea L. Ethanol Extract in High Fat Diet-Induced Obese Mice

고지방식이로 유도된 비만 Mice에서 쇠비름 에탄올 추출물의 고지혈증 개선효과

  • 원향례 (상지대학교 식품영양학과) ;
  • 김수현 (상지대학교 식품영양학과)
  • Received : 2011.01.24
  • Accepted : 2011.03.08
  • Published : 2011.04.30
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Abstract

This study was conducted for the antihyperlipidemic effect of ethanol extract from Portulaca oleracea in high fat diet-induced obese mice after having injected the ethanol extract from Portulaca oleracea to the obese mice with high fat diet. The 30 six-week-old male C57BL/6J mice were divided into 3 groups of 10 and fed for 5 weeks to be obese with high fat diet. Thereafter, for 4 weeks, ethanol extract from Portulaca oleracea was provided through oral injection to the 3 groups: control group (HFD), group injected with 75 mg/kg of ethanol extract from Portulaca oleracea (HFD+POE 75) and the group injected with 125 mg/kg of ethanol extract from Portulaca oleracea (HFD+POE 125). The serum and liver lipid and the alanine transaminase (ALT) and aspartate transaminase (AST) activity were measured. The result showed that there was no significant difference in weight gain and feed intake, and the feed efficiency ratio was significantly low in the group provided with ethanol extract from Portulaca oleracea. Serum total cholesterol was significantly low in the group of ethanol extract from Portulaca oleracea (HFD+POE 125). It appeared that all the groups provided with ethanol extract from Portulaca loeracea reduced plasma triglyceride significantly according to the ethanol extract from Portulaca oleracea dose. There was no dose dependency of HDL-cholesterol to the dose of ethanol extract of Portulaca oleracea. LDL-cholesterol was low in the group dosed with high ethanol extract from Portulaca oleracea (HFD+POE 125). There was difference of total cholesterol, triglyceride and total lipid contents in liver. AI (atherogenic index) and CRF (cardiac risk factor) were significantly low in the group with high dose of ethanol extract from Portulaca oleracea (HFD+POE 125). There was no difference of serum AST activity, however, serum ALT activity was significantly low in the group with high dose of ethanol extract from Portulaca oleracea (HFD+POE 125).

쇠비름 에탄올 추출물의 고지혈증 개선 효과를 알아보기 위하여 C57BL/6J mice에게 9주 동안 고지방식이를 섭취시켰다. 마지막 4주 동안은 고지방식이에 쇠비름 에탄올 저농도투여군(HFD+POE 75) 및 쇠비름 에탄올 고농도투여군(HFD+POE 125)으로 나누어 하루에 한 번씩 경구투여 하였으며 고지방식이군(HFD)은 증류수를 투여하였다. HFD+POE 75군 및 HFD+POE 125군의 체중변화량은 유의적인 차이를 나타나지는 않았으나 식이효율은 HFD군에 비해 유의적으로 감소하였다. 혈중 ALT 함량은 HFD군에 비해 HFD+POE 125군에서 유의적으로 감소하였으나 AST 함량은 그룹 간 차이를 나타내지 않았다. 실험식이 4주 때에 혈청 중 총콜레스테롤, 중성지질 및 LDL-콜레스테롤 함량은 쇠비름 에탄올 추출물 경구투여로 유의적으로 감소하였으나 HDL-콜레스테롤 함량은 유의적 차이를 나타내지 않았다. 심순환기 질환의 위험성을 나타내는 지표로 알려진 동맥경화지수와 심혈관위험지수는 고농도의 쇠비름 에탄올 추출물 경구투여로 HFD군에 비해 유의적으로 감소하였다. 이상의 결과 고지방식이에 쇠비름 에탄올 추출물 경구투여로 혈중 및 간장 중의 총콜레스테롤 및 LDL-콜레스테롤, 중성지질이 저하되었는데 이는 쇠비름 에탄올 추출물이 고지혈증 개선 효과가 있는 것으로 사료되나 쇠비름 에탄올 추출물의 어떤 성분에 의한 지질 저하효과를 나타내는지와 어떠한 기전에 의해 지질 저하효과를 나타내는지 보다 자세한 연구가 요구된다.

Keywords

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