• 한국식품영양과학회지
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• 제37권6호
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• pp.708-713
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• 2008

명일엽 및 울금의 혼합사용이 고지혈증 개선에 효과가 있는 지를 규명하기 위하여 고콜레스테롤식이를 이용한 고콜레스테롤혈증과 poloxamer 407(P-407)의 복강투여로 유도한 고중성지질혈증에서 명일엽과 울금 추출물의 단독 또는 혼합투여 시 혈중 지질에 미치는 효과를 비교 분석하였다. 고콜레스테롤식이로 유도한 고콜레스테롤혈증 쥐에서 총 콜레스테롤 농도는 음성대조군에 비하여 명일엽군은 6.8%, 울금군은 22.1%, 복합조성물군은 28.2%의 감소효과를 보였다(p<0.001). HDL-콜레스테롤 농도는 실험군 간에 유의적인 차이를 보이지 않았다. LDL-콜레스테롤 농도는 음성대조군에 비교하여 명일엽군은 9.8%, 울금군은 28.8%, 복합조성물군은 35.6%의 감소효과를 보였다(p<0.001). 동맥경화지수(AI)와 심혈관 위험지수(CRF)는 음성대조군에 비하여 울금군 및 복합조성물군에서 유의적으로 감소하였다(각p<0.001). 간기능을 나타내는 GOT의 활성은 음성대조군에 비하여 울금군과 복합조성물군이 유의적으로 감소하였고, 특히 울금군의 감소폭이 커 정상대조군 수준까지 저하되었다(p<0.001). P-407로 유도한 고중성지방혈증 쥐에서 혈청 중성지방농도는 음성대조군에 비하여 명일엽 추출물의 경우 17.2%, 울금 추출물의 경우 19.7%가, 복합조성물 48.3%의 감소효과를 나타내었다. 이상의 결과를 요약할 때 명일엽과 울금의 복합추출물은 식이로 유도한 고콜레스테롤혈증 쥐에서 총 콜레스테롤, LDL-콜레스테롤, AI, CRF의 감소효과를 보였고, P-407을 이용하여 유도한 고중성지방혈증 동물모델에서도 중성지방의 유의적인 감소효과를 보였다. 이러한 효과는 울금과 명일엽의 단독투여에 비하여 감소폭이 더 큰 것으로 나타나 이들을 조합한 새로운 기능성식품의 개발의 기초자료로 활용될 수 있을 것으로 사료된다. 그러나 본 연구는 복합추출물의 단일농도 투여에 의한 혈중지질의 개선효과를 확인하는데 그쳤으므로, 향후 이들의 효과적인 투여농도와 작용기전을 밝힐 수 있는 계속적인 연구가 이루어져야 할 것으로 생각된다.

• Nutrition Research and Practice
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• 제8권1호
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• pp.20-26
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• 2014

Obesity is an epidemic disease characterized by an increased inflammatory state and chronic oxidative stress with high levels of pro-inflammatory cytokines and lipid peroxidation. Moreover, obesity alters cholesterol metabolism with increases in low-density lipoprotein (LDL) cholesterols and triglycerides and decreases in high-density lipoprotein (HDL) cholesterols. It has been shown that mulberry leaf and fruit ameliorated hyperglycemic and hyperlipidemic conditions in obese and diabetic subjects. We hypothesized that supplementation with mulberry leaf combined with mulberry fruit (MLFE) ameliorate cholesterol transfer proteins accompanied by reduction of oxidative stress in the high fat diet induced obesity. Mice were fed control diet (CON) or high fat diet (HF) for 9 weeks. After obesity was induced, the mice were administered either the HF or the HF with combination of equal amount of mulberry leaf and fruit extract (MLFE) at 500mg/kg/day by gavage for 12 weeks. MLFE treatment ameliorated HF induced oxidative stress demonstrated by 4-hydroxynonenal (4-HNE) and modulated the expression of 2 key proteins involved in cholesterol transfer such as scavenger receptor class B type 1 (SR-B1) and ATP-binding cassette transporter A1 (ABCA1) in the HF treated animals. This effect was mainly noted in liver tissue rather than in cutaneous tissue. Collectively, this study demonstrated that MLFE treatment has beneficial effects on the modulation of high fat diet-induced oxidative stress and on the regulation of cholesterol transporters. These results suggest that MLFE might be a beneficial substance for conventional therapies to treat obesity and its complications.

• Journal of Ginseng Research
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• 제34권4호
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• pp.369-375
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• 2010

This study evaluated the protective effects of ginseng leaf extract (GLE) against high fat-diet-induced hyperglycemia and hyperlipidemia, and explored the potential mechanism underlying these effects in C57BL/6J mice. The mice were randomly divided into four groups: normal control, high fat diet control (HFD), GLE-treated at 250 mg/kg, and GLE-treated at 500 mg/kg. To induce hyperglycemic and hyperlipidemic states, mice were fed a high fat diet for 6 weeks and then administered GLE once daily for 8 weeks. At the end of the treatment, we examined the effects of GLE on plasma glucose, lipid levels, and the expression of genes related to lipogenesis, lipolysis, and gluconeogenesis. Both GLE groups lowered levels of plasma glucose, insulin, triglycerides, total cholesterol, and non-esterified fatty acids when compared to those in HFD group. Histological analysis revealed significantly fewer lipid droplets in the livers of GLE-treated mice compared with HFD mice. To elucidate the mechanism, Western blots and RT-PCR were performed using liver tissue. Compared with HFD mice, GLE-treated mice showed higher levels of phosphorylation of AMP-activated protein kinase (AMPK) and its substrate, acetyl-CoA carboxylase, but no differences in the expression of lipogenic genes such as sterol regulatory element-binding protein 1a, fatty acid synthase, sterol-CoA desaturase 1 and glycerol-3-phosphate acyltransferase. However, the expression levels of lipolysis and fatty acid uptake genes such as peroxisome proliferator-activated receptor-$\alpha$ and CD36 were increased. In addition, phosphoenolpyruvate carboxykinase gene expression was decreased. These results suggest that GLE ameliorates hyperglycemia and hyperlipidemia by inhibiting gluconeogenesis and stimulating lipolysis, respectively, via AMPK activation.

• 동의생리병리학회지
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• 제20권5호
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• pp.1180-1186
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• 2006

This research was planned and executed to evaluate how the composition of Yak-sun(oriental diet therapy) can effect health conditions of people who are suffering from diet-related diseases like obesity and hyperlipidemia by taking Yak-sun in a form of nutritional supplement with our daily meals. We produced Jangswucha with Koekac, Sansa, Heshouwu, Wulong and evaluated how this tea effects on serum lipids and oxidative stress by clinical practices. Also we examined physical characteristics of Jangswucha. Brix, pH and titratable acidity of Jangswucha were 1.4, 5.50 and 0.05%. With this observation, we found out that this tea has significant effect on increase of HDL-cholesterol, decrease of LDL-cholesterol concentration in serum. Also this tea significant effect on decrease oxidative stress and homocystein content. We think that scientific and objective evaluation was done on the components of Yak-sun tea prescription. We concluded that we could apply the components not only in a form of tea, but also in other forms of various food. The information we received from this conclusion will be a basic information on how we can apply oriental medicinal resources into other food and will also be a steppingstone for medicinal herbs to step foot in the field of functional food research, which already draws sizable attention world-wide.

• 한국식품영양과학회지
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• 제41권1호
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• pp.49-56
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• 2012

본 연구는 구운 마늘 분말의 혈청, 간 및 지방조직의 체내 지질대사 개선효과와 항비만 효과를 살펴보기 위하여 5주령된 흰쥐 수컷 32마리를 10일간 적응시킨 후 정상군(N), 고지방-고콜레스테롤 식이군(대조군, C), 고지방-고콜레스테롤 식이와 1.5% 구운 마늘 분말 첨가군(GPL) 및 고지방-고콜레스테롤 식이와 3% 구운 마늘 분말 첨가군(GPH)으로 나누어 4주간 실시하였다. 체중증가량과 식이섭취량은 실험군들간에 유의한 차이를 보이지 않았고, 식이효율은 고지방-고콜레스테롤을 급여한 군들(C, GPL, GPH)이 대조군(C)에 비하여 증가하였다. 체중 100 g 당 간조직 및 장간막지방조직의 무게는 구운 마늘 급여에 따른 유의차는 없었고, 부고환지방 조직의 무게는 구운 마늘 분말 1.5%와 3% 첨가군들(GPL, GPH)이 대조군(C)에 비하여 유의하게 감소하였다. 고지방-고콜레스테롤 식이로 인하여 혈청 ALT, AST, ALP 및 LDH 활성이 증가되었으나, 혈청 AST 및 LDH 활성은 3% 구운 마늘 분말 첨가로 유의하게 저하되었다. 혈청 중성지방과 총콜레스테롤 함량은 고지방-고콜레스테롤 식이 급여로 유의하게 증가하였으며, 구운 마늘 분말 첨가 수준이 증가할수록 감소하는 경향을 보였으며 특히 3% 구운 마늘 분말 첨가군(GPH)은 대조군(C)에 비하여 유의하게 감소되었다. 고지방-고콜레스테롤 식이 급여로 감소되어진 혈청 HDL-콜레스테롤 함량은 구운 마늘 분말 첨가로 증가하였고, 혈청 LDL-콜레스테롤 함량, 동맥경화지수 및 심혈관위험지수는 구운 마늘 분말 첨가로 감소하여 동맥경화 및 심혈관 질환의 발병 위험률 감소 효과를 나타내었다. 고지방-고콜레스테롤 식이로 간과 지방조직의 중성지방 및 총콜레스테롤 함량이 증가되었으며, 고지방-고콜레스테롤 식이로 증가된 간조직과 장간막지방조직의 총콜레스테롤 함량, 부고환조직의 중성지방 함량은 구운 마늘 급여로 저하되었다. 이상의 실험 결과 구운 마늘은 고지방-고콜레스테롤 식이를 급여한 흰쥐의 혈청, 간 및 지방조직의 지질대사 개선에 긍정적인 영향을 미치는 것으로 나타나 체내 지질대사 개선과 심혈관계 질환 예방효과가 클 것으로 기대된다.

• 한국식품영양과학회지
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• 제35권4호
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• pp.410-415
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• 2006

청국장 분말이 고지방식이를 섭취한 흰쥐의 지질대사에 미치는 영향을 조사하고자, 성숙한(생후 20주령) 숫쥐를 4주간 고지방식이(0.5% 콜레스테롤, 10% 지방)로 고지혈증을 유도한 후 대조군(고지방식이), 청국장군(고지방식이에 단백질원으로 청국장 분말을 첨가한 식이) 및 상황버섯 청국장군(고지방식이에 단백질원으로 상황버섯 청국장 분말을 첨가한 식이 ) 등 3군으로 나누어 5주간 사육한 결과는 다음과 같다. 실험동물의 체중은 대조군이 41.8 g증가함에 비하여 청국장군 및 상황버섯 청국장군은 각 -3.7 g 및 -0.8 g으로 유의하게 감소되었고, 식이섭취량 및 식이효율은 대조군에 비하여 청국장군들이 유의하게 감소되었다. 간과 부고환지방의 무게 및 간조직의 콜레스테롤과 중성지질 농도는 대조군에 비하여 청국장군 및 상황버섯 청국장군이 유의하게 감소시키는 효과가 나타났다. 혈청의 중성지질, 총 콜레스테롤, LDL-콜레스테롤, VLDL-콜레스테롤 농도 및 동맥경화지수는 대조군에 비해 청국장군 및 상황버섯 청국장군이 유의하게 감소되었다. 총 콜레스테롤에 대한 HDL-콜레스테롤의 비율은 대조군에 비해 청국장군들이 유의하게 증가되었다. 변의 무게, 총 지질, 중성지질 및 콜레스테롤 배설량은 청국장군들이 대조군보다 유의하게 증가된 것으로 나타났다. 이상의 결과로 보아 고지방식이에 청국장 및 상황버섯청국장 분말을 첨가 섭취시 혈청과 간조직의 중성지질, 총콜레스테롤과 LDL-콜레스테롤 농도 및 동맥 경화지수를 낮추고, 총 콜레스테롤에 대한 HDL-콜레스테롤의 비율을 증가시키는 지질대사의 개선 효과가 나타났다.

• 대한한방내과학회지
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• 제27권1호
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• pp.16-26
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• 2006

Objectives : This experiment was performed to determine the effects of the Jeseubsungi-tang(JSSGT) on hyperlipidemia-induced by hypercholesterolemic diet in mice. Methods : C57BL/6 mice were sensitized with a hypercholesterolemic diet for 6 weeks. Experimental group was treated with $150mg/d{\ell}$ concentrations of JSSGT for 4 weeks (once a day). Results: JSSGT-treated mice showed a body weight decrease compared to normal group. JSSGT-treated mice showed a significant decrease in cholesterol, total cholesterol, triglyceride, ALT and LDL-cholesterol levels compared to hyperlipidemia-induced control group. However, HDL-cholesterol levels in JSSGT-treated group significantly increased compared to the hyperlipidemia-induced control group. Conclusion : These results suggest that JSSGT is effective in treating hyperlipidemia. Because only hyperlipidemic mice were studied, further research is needed.

• 대한한방내과학회지
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• 제30권4호
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• pp.746-760
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• 2009

Objectives : This study was designed to evaluate the effect of Hasuogamibang (HGB) on hyperlipidemia and antioxidant activity. Methods : For this study, we divided four groups of rats (normal WKY group, normal SHR group, high cholesterol diet and saline-treated SHR group, high cholesterol diet and HGB-treated SHR group), and observed the change of body weight, weight of liver, cholesterol, triglyceride, glucose, albumin, histologic change of liver and aorta, lipid peroxidation and antioxidant activity of liver tissue, and cholesterol gene revelation control efficiency. Results : Total-cholesterol, LDL-cholesterol, triglycerides were decreased significantly by HGB. However, HDL-cholesterol increased significantly. The tissue of liver and aorta were controlled defect by HGB on histologic study. Lipid peroxidation and SOD of liver tissue was decreased significantly by HGB. Gene revelation of ACAT and HMG CoA reductase in hepatic tissue was decreased significantly by HGB. Conclusion : This study suggests that HOB is significantly effective on hyperlipidemia and antioxidant activity.

• Advances in Traditional Medicine
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• 제1권1호
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• pp.28-36
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• 2000

Effects of hesperetin and naringenin on the concentration of triacylglycerol in the serum and liver were studied in male golden hamster fed with the semipurified diet containing at 1% level of them for 3 weeks. The concentration of triacylglycerol in serum of the naringenin group decreased by 31%, whereas that in liver increased by 37% compared to the control group. The concentration of triacylglycerol in the serum and liver of the hesperetin group was slightly lower than the control group. The activity of microsomal phosphatidate phosphohydrolase in the liver, which is a key enzyme for biosynthesis of triacylglycerol, was significantly inhibited in the hesperetin group, whereas it was not affected in the naringenin group. The effect of hesperetin on phosphatidate phosphohydrolase was also measured in vitro. Hesperetin decreased the activity of phosphatidate phosphohydrolase with a dose-dependent manner. Both naringenin and hesperetin did not statistically affect the daily food consumption, body weight, liver weight, and total cholesterol in the serum. The observation accounts for the hypotriglyceridemic effect of hesperetin in the hyperlipidemic hamster.

• Journal of Nutrition and Health
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• 제35권8호
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• pp.840-847
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• 2002

This study explored the effect of dietary levels of Na and Ca on spontaneously hypertensive rats (SHR). SHR were randomly divided into 5 groups and fed a high fat/cholesterol diet containing three levels of Na (0.05, 0.1, 1.5%) and Ca (0.1, 0.5, 1.5%) for 9 weeks. Body weight gain was not influenced by dietary intake but water intake significantly increased in high Na supplementation. Systolic blood pressure was not influenced by dietary Na and Ca levels but was decreased by dietary low Na/high Ca levels at 9 weeks. Angiotensin-II level was affected by dietary Na level but not by Ca levels. Plasma Ca, Mg, K and Na levels were in the normal range regardless of dietary Na and Ca levels. Weight, and K and Na contents of the heart and kidney were not significantly different among those with different dietary Na and Ca levels. Ca and Mg contents of the heart and kidney were significantly higher in the normal Na/normal Ca group. Ca and Mg in the feces were higher in those with high Ca intake. Na in the feces was higher in those with high Na intake. Therefore, Na and Ca had different mechanisms in the hypertension/hyperlipidemia models, respectively. And we suggested that Mg must be supplemented when Ca intake was high because Mg excretion was increased by Ca supplementation.