• Journal of Nutrition and Health
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• 제38권5호
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• pp.344-351
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• 2005

The purpose of this study was to examine the impact of isoflavones on lipid concentrations and hepatic LDL receptor mRNA level in growing female rats. Twenty four rats (body weight $75\pm5g$) were randomly assigned to one of two groups, consuming control diet or isoflavones supplemented diet (57mg isoflavones/100g diet). All rats has been fed on experimental diet and deionized water ad libitum for 9 weeks. The concentration of triglyceride and total cholesterol were measured in serum and liver. Serum HDL cholesterol was measured. Hepatic LDL receptor mRNA level was tested by RT-PCR. Supplementation of isoflavones did not affect weight gain, mean food intake and food efficiency ratio. Serum total cholesterol and non-HDL cholesterol of isoflavones supplemented rats were significantly lower than those of control rats (p<0.05). But hepatic cholseterol was not influenced by supplementation of isoflavones. Hepatic LDL receptor mRNA level not significantly different between control group and isoflavones supplemented group. Therefore, isoflavones may be beneficial on serum cholesterol and non-HDL cholesterol lowering in growing female rats.

• Nutritional Sciences
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• 제8권3호
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• pp.175-180
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• 2005

Green tea, which has high polyphenols amount, is thought to have hypocholesterolemic effects. The present study was performed to further examine the hypocholesterolemic action of green tea, especially (-) epigallocatechin gallate (EGCG) for its effect on diet-induced hypercholesterolemia in rats. Male Sprague-Dawley rats (n=15) were fed a green tea-free diet (control), $1.0\%$ green tea catechin (catechin) or $0.5\%$ green tea catechin EGCG for seven weeks. Hypercholesterolemia was induced by adding $1\%$ cholesterol and $0.5\%$ cholic acid to all diets. There was no difference in food intake and body weight gain among the groups. The green tea EGCG treatment led to a significant improvement in plasma levels of total cholesterol, low density lipoprotein (LDL)-cholesterol and high density lipoprotein (HDL)/LDL ratio (p<0.05). There was no significant effect on the plasma HDL-cholesterol level. The catechin treatment led to a 4.19-fold increase in the LDL-receptor mRNA level compared to the control, but the EGCG treatment did not affect the hepatic LDL-receptor mRNA level. Our results suggest that when blood cholesterol level is down-regulated by green tea EGCG, the LDL receptor gene-independent pathway may dominate the hypocholesterolemic action of EGCG.

• 대한간호학회지
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• 제28권1호
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• pp.184-192
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• 1998

This study was done to examine the correlations between weight, BMI and risk factors of coronary heart disease in men and women in their forties and fifties. The subjects were 412 adults. who had regular health examinations between January and December of 1996 at S-Hospital in Seoul. The data were analyzed using ANOVA, Scheffe test, and Pearson correlation coefficient. The results are as follows : 1. The men between 50 and 59 years of age had higher levels for BMI, weight, systolic blood pressure, diastolic blood pressure, total cholesterol. LDL-cholesterol, triglyceride, fasting blood sugar, plasminogen activator-1, and hemoglobin A,C than the group of women in their forties. Yet. HDL-cholesterol was lower than in the former group. 2. In the group of men in their forties, weight was significantly correlated to diastolic blood pressure(r=.22), LDL-cholesterol(r=.20), plasminogen activator-inhibitor-1(r=.35) HDL-cholesterol(r=-.19). Their BMI was significantly correlted to systolic blood pressure(r=.27), diastolic blood pressure (r=.33), total cholesterol(r=.23), LDL-cholesterol (r=.26), plasminogen activator-1(r=.36) and HDL-cholesterol(r=-.25). 3. As for the group of women in their forties weight was significantly correlated to systolic blood pressure(r=.20), diastolic blood pressure(r=.22), triglyceride(r=.32) , plasminogen activator inhibitor-1 (r=.30) and HDL-cholesterol(r= -.37). Their BMI was significantly correlated to diastolic blood pressure (r=.25) triglyceride(r=.47), plasminogen activator-1 (r=.35), fibrinogen(r=.27) and HDL-cholesterol(r=-.47). 4. In the group of men in their fifties. weight was significantly correlated to total cholesterol (r=32), LDL-cholesterol(r=.29). plasminogen activator inhibitor-1(r=.26). Their BMI was significantly correlated to systolic blood pressure(r=.24), diastolic blood pressure (r=.22), total cholesterol (r=.34), LDL-cholesterol (r=.32), and plasminogen activator-1(r=.25). 5. In the group of women in their fifties, weight was significantly correlated to diastolic blood pressure(r=.33), total cholesterol(r=.21), LDL-cholesterol(r=.20), plasminogen activator inhibitor-1 (r=.43) and HDL-cholesterol(r=-.21). Their BMI was significantly correlated to systolic blood pressure(r=.25), diastolic blood pressure(r=.40), total cholesterol(r=.24), LDL-cholesterol(r=.24), triglyceride(r=22), and HDL-cholesterol (r=-.30). The above findings indicate that the BMI was more predictive than weight as a risk factor for coronary artery disease for men and women in their forties and fifties.

• Journal of Ginseng Research
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• 제17권1호
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• pp.1-12
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• 1993

The Preventive effect of the saponin fraction of Panax ginseng C.A. Meyer against hyperchole- sterolemia was demonstrated by assaying the cholesterol and triacylglyceride level of the blood serum and liver of rats fed high-cholesterol diet with and/or without ginsenoside. To understand the mechanism of the preventive action of ginsenoside, ginsenoside effect on LDL receptor binding ability, cholesterol level, and cAMP level of Chinese hamster ovary (CHO) cells cultured under various conditions were examined. When LDL (20 $\mu$g/ml) was added to the culture medium for CHO cell culture, LDL receptor binding activity of the cell was suppressed down to 58% of that of normal group. Ginsenosides at 10--2% and 10-3% level (w/v) were shown to exert an appreciable stimulatory effect on CHO cell LDL receptor activity, which partially overcame the suppression due to the presence of LDL (20 $\mu\textrm{g}$/ml) in the medium. Ginsenosides also reduced the increased cholesterol level of test group almost to that of normal group, and it increased cAMP level, which was usually reduced to 55% of that of the normal group due to the presence of LDL in the medium. Comparison of Kd and Bmax value of CHO cells cultured under different conditions revealed that this stimulation was due not to the receptor's binding affinity but to its number. Addition of ginsenoside (10-2%) decreased the uptake of taurocholic acid as much as 20% at the actively transporting everted ileal sacs, but it failed to form a large mixed micelles with taurocholic acid, which was one of the proposed mechanisms by which ginsenoside inhibits bile acid reabsorption. From the above results, it seemed likely that ginsenoside prevented hypercholestrolemia by decreasing cholesterol level in cells thereby relieving the inhibition of LDL receptor synthesis by cholesterol and also by inhibiting bile acid reabsorption from the small intestine.

• 한국지역사회생활과학회지
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• 제19권1호
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• pp.113-123
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• 2008

This study was performed to find and compare the characteristics of dietary factors and obesity indices on serum lipid profiles using 407 healthy adult males that had physical examinations conducted at the general hospital located in Suwon. The subjects were divided 56.3% for the normal group, 16.7% for TG, 14.5% for TC and 12.5% for TC TG group, respectively. When comparing the blood lipid profiles to normal group, TC group was high in both total cholesterol and LDL-cholesterol, TG group was high in triglyceride and low in HDL-cholesterol, TC TG group was high in triglyceride, total cholesterol, LDL-cholesterol and low in HDL-cholesterol. In comparison of blood lipid profiles with normal group, among anthropometric factors, body weigh, BMI (Body Mass Index) and WHR (Waist Hip Ratio) showed significant differences. TC group was high in both total cholesterol and LDL-cholesterol, and TG group was high in triglyceride and low in HDL-cholesterol. TC TG group was high in triglyceride, total cholesterol and LDL-cholesterol, and was low in HDL-cholesterol. Body weigh of TG group was significantly higher than that of normal group (p<0.05). BMI and WHR of TG group and TC TG group were significantly higher than those of normal group (p<0.05). Total cholesterol was mainly related to the intake of animal lipids and alcoholic beverage. Serum triglyceride levels were closely related with lipid intake and high BMI in this group. In TC TG group, BMI and WHR were high. As well, serum LDL-cholesterol was high and HDL-cholesterol was low which indicates TC TG group had the most undesirable blood lipid profiles. Therefore, it may be necessary to manage BMI and WHR to prevent hyperlipidemia and obesity for adult males in Suwon.

• 한국산학기술학회논문지
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• 제5권6호
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• pp.546-551
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• 2004

본 연구에서는 녹차분말이 포함된 녹차유부의 시제품 섭취가 실험쥐의 혈청지질에 미치는 영향을 조사하였다. 녹차분말이 포함된 유부 제품의 성분을 HPLC로 분석한 결과 녹차의 기능성 성분인 epigallocatechin, epicatechin, epicatechin gallate, epigallocatechin gallate 등이 공정단계에서 파괴되지 않고 잘 보존됨을 확인할 수 있었다. 개발된 녹차유부 시제품을 실험쥐에 섭취시킨 후 혈청의 HDL-cholesterol, LDL-cholesterol, triglyceride과 포도당농도를 측정한 결과 일반 유부를 섭취한 대조군에 비하여 혈중 LDL-cholesterol 농도와 혈당량이 유의성 있게 감소되었다.

• 한국식품영양과학회지
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• 제21권2호
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• pp.131-135
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• 1992

혈청중의 총 콜레스테롤, LDL, LDL-콜레스테롤 농도는 대조군에 비하여 전 실험군이 낮게 나타났고, 총 콜레스테롤은 전 실험군중 6군(표고버섯 10%첨가)이 가장 낮았고 LDL및 LDL-콜레스테롤 농도는 6군이 가장 낮게 나타났으며, HDL-콜레스테롤의 농도는 대조군에 비하여 전 실험군이 높게 나타났고 그 중 3군(표고버섯 5%첨가)이 가장 높게 나타났다. 중성지질, 인지질, 유리콜레스테롤, 콜레스테롤 에스테르는 대조군에 비하여 전 실험군이 모두 낮게 나타났고 중성지질은 6군이 가장 낮았으며, 인지질은 3군이 가장 낮았고, 유리 콜레스테롤 농도 또한 3군 에스테르 6군이 가장 낮게 나타났다. Chylomicron과 VLDL은 대조군 보다 여타 실험군이 모두 낮았으며 chylomicron은 3군에서, VLDL은 6군에서 낮게 나타났다. 본 실험의 결과로 볼 때 영지버섯, 표고버섯, 목이버섯은 고콜레스테롤 혈증의 예방및 치료에 효력이 있는 것으로 나타났으며, 특히 표고버섯이 가장 유효함을 보였다.

• 한국응용약물학회:학술대회논문집
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• 한국응용약물학회 2003년도 Annual Meeting of KSAP : International Symposium on Pharmaceutical and Biomedical Sciences on Obesity
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• pp.37-43
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• 2003

Engorgement of macrophages with cholesterol is the defining pathological characteristic of atherosclerotic plaques, the cause of most heart attacks and strokes. Activated human macrophages uptake low density lipoprotein (LDL) by the bulk-phase fluid, and aggregated LDL by patocytosis. After incorporation of LDL and aggregated LDL into macrophages, neutral cholesterol esterase is decreased and cholesterol efflux is also deceased, resulting that macrophages become foam cells.

• 대한의생명과학회지
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• 제16권1호
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• pp.19-24
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• 2010

We analyzed and compared the concentration of total cholesterol (CHOL), high density lipoprotein (HDL) cholesterol, low density lipoprotein (LDL) cholesterol and triglyceride (TG) in serum and the serum protein electrophoresis fractions of thyroid disease patients. In comparison with the average of reference, our data showed that the average concentration of CHOL, LDL cholesterol and TG in hyperthyroidism patients were decreased significantly, but HDL cholesterol was increased significantly. In hypothyroidism patients, CHOL, HDL cholesterol, LDL cholesterol and TG were all increased significantly. In comparison of the concentration of lipids in each patient to reference range, 28.3% of hyperthyroidism patients showed abnormally low level of total cholesterol. In the patients with hypothyroidism, the percentage of patients showed abnormally high level of CHOL, HDL cholesterol, LDL cholesterol and TG were 37.7%, 10%, 68.8% and 49.1%, respectively. In our studies of serum protein electrophoresis, the average of ${\alpha}_2$-globulin and $\gamma$-globulin in hyperthyroidism patients were increased and $\beta$-globulin was decreased significantly. In hypothyroidism patients, the average of $\gamma$-globulin was increased and $\beta$-globulin was decreased significantly. In comparison of protein fractions of each patient to reference range, 38.3% and 50.0% of hyperthyroidism patients showed abnormally high levels of ${\alpha}_2$-globulin and $\gamma$-globulin, but 73.3% of patients showed abnormally low level of $\beta$-globulin. In hypothyroidism patients, 70.4% of patients were abnormally decreased in $\beta$-globulin and 63.9% of patients were abnormally increased in $\gamma$-globulin. These data suggest that the concentrations of CHOL, HDL cholesterol, LDL cholesterol and TG are not critical data for clinical interpretation of hyperthyroidism, but the levels of them are useful for interpretation of hypothyroidism patients. Our results of serum protein electrophoresis suggest that the concentration of serum protein electrophoresis fractions can be useful to understand the thyroid disease.

• 생명과학회지
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• 제8권1호
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• pp.72-84
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• 1998

본 연구는 생후 4주령의 Sprague Dawley 흰쥐 47마리를 대상으로 2% 콜레스테롤 식이와 정상식이 그리고 여러가지 강도의 유산소운동(트래드밀 런닝)과 비운동을 실시하여 혈청지질과 adipose tissue를 분석해서 다음과 같은 경과를 얻었다. 1. 콜레스테롤식이에 의해 형중T-C치가 유의하게 증가되었으나 유산소성운동에 의해 감소하는 경향을 나타내었다. 2. 콜레스테롤식이에 의해 혈중 HDL-C와 LDL이 약간 증가야였으나, 유산소성운동에 의해 모두 감소하는 경향을 나타내었다. LDL/HDL-C는 간한 운동을 한 CRA군에서만 감소하는 경향을 나타내었다. 3. 콜레스테롤식이에 의해 혈액중의 phospholipid 및 triglyceride는 감소하는 경향을 나태내었으나, 유산소성운동에 의해 약간 증가하는 경향을 나태내었다. 4. 정상식이군에서 유산소성운동에 의해 adipose tissue가 유의하게 감소되었으며, 콜레스테롤 식이군에서도 유산소성운동에 의해 adipdse tissue가 감소하는 경향을 나타내었다. 이상과 같은 연구결과를 통하여 유산소성운동이 콜레스테롤식이에 의해 증가도니 혈중 총콜레스테롤을 저하시키며, 동백경과 위험인자인 LDL은 낮추어 동맥경화성 질병을 예방할 것으로 사료된다.