• Title/Summary/Keyword: Cholesterol HDL

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The Hypocholesterolemic Effect of Green Tea EGCG Was Not Mediated Via the Stimulation of the Low-Density Lipoprotein Receptor Gene Expression in Cholesterol-Fed Rats

  • Moon Hee-Jung;Kim Yangha
    • Nutritional Sciences
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    • v.8 no.3
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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.

A meta analysis for anti-hyperlipidemia effect of soybeans (메타분석을 이용한 대두의 항-고지혈 효과)

  • Kim, Ji-Eun;Choi, Ki-Heon
    • Journal of the Korean Data and Information Science Society
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    • v.21 no.4
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    • pp.651-667
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    • 2010
  • In this paper, using a meta analysis of anti-hyperlipidemia effect of soybeans were studied. Studied the effects of soybeans using Hedges' standardized mean difference looked at the effect. Applying the fixed-effects model analysis of fecal cholesterol and total cholesterol and triglycerides showed a statistically significant reduction in HDL cholesterol increase was statistically significant at. In addition, the homogeneity of all variables by running the test did not meet the homogeneity of the kidney weight, between weight, HDL cholesterol, LDL cholesterol, total cholesterol, and triglycerides in the random effects model against the results of the analysis conducted by a statistically significant variable that did not.

Influences of Chitosan, Sericin and Collagen Extract Complexes on the Improvement Actions of Lipid Component in Diabetes (키토산과 세리신 및 콜라겐 추출 혼합물이 당뇨의 혈당 및 지질성분 개선효과)

  • Kim, Han-Soo;Jang, Seong-Ho;Yoon, Myung-Joo;Choi, Woo-Seok;Kang, Jin-Soon
    • Journal of Environmental Science International
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    • v.20 no.8
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    • pp.1031-1039
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    • 2011
  • This study was conducted to examine the influences of chitosan, sericin and collagen extract complexes (1:1:1, w/w/w, CSC-F-005) in blood glucose and lipid concentrations in the sera of streptozotocin (STZ, 55 mg/kg BW, IP injection)-induced diabetic rats (SD strain) fed on experimental diets for 5 weeks. The concentrations of blood glucose, total cholesterol, HDL-cholesterol, ratio of HDL-cholesterol concentration to total cholesterol, atherosclerotic index, LDL-cholesterol, free cholesterol, cholesteryl ester, triglyceride (TG) and phospholipid (PL) in serum were effective on the metabolic regulation in diabetic rats. The activities of alkaline phosphatase (ALP) and aminotransferase (AST, ALT) in serum were lower in the extract complexes (CSC-F-005) than in the diabetic rats. The results shown above suggested that CSC-F-005 extract complexes supplementation effectively improvement of blood glucose and lipid components in the serum of STZ-induced diabetic rats.

Improvements Caused by Chitosan, Sericin and Collagen Peptide Extract Complexes on Lipid Metabolism in Dyslipidemia (키토산과 세리신 및 콜라겐 펩타이드 추출 혼합물이 이상지질혈증의 지질대사 개선에 미치는 영향)

  • Kim, Han-Soo;Jang, Seong-Ho;Yoon, Myung-Joo;Kang, Jin-Soon;Choi, Woo-Seok
    • Journal of Environmental Science International
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    • v.20 no.8
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    • pp.1021-1030
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    • 2011
  • The objective of this study was to assess improvements caused by chitosan, sericin and collagen peptide extract complexes (1:1:1, w/w/w, CSC-F-005) in lipid concentrations in the sera of dyslipidemic rats (SD strain) fed on experimental diets for 5 weeks. Serum concentrations of total cholesterol, HDL-cholesterol, ratio of HDL-cholesterol concentration to total cholesterol, atherosclerotic index, LDL-cholesterol, free cholesterol, cholesteryl ester, triglyceride, phospholipid and blood glucose were effective on the metabolic regulation of dyslipidemic rats. The activities of alkaline phosphatase, aspartate aminotransferase and alanine aminotransferase in serum were remarkably lower in the extract complexes (CSC-F-005) than in the dyslipidemic model. From the above results shows that CSC-F-005 extract complexes were effective on the improvement of the lipid metabolism in sera of dyslipidemic rats.

Study on Antihyperlipidemic Effect of Kamiondamtang (가미온담탕(加味溫膽湯)의 항고지혈 작용에 대한 연구)

  • Kim, Kyung-Soo;Jeun, Sang-Yoon;Ann, Jeung-Jo;Hong, Seok;Jeung, Su-Mi
    • Herbal Formula Science
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    • v.13 no.1
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    • pp.85-101
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    • 2005
  • Kamiondamtang(KODT) has been used in oriental medicine as stress by many medical practitioner for the study of KODT, we had fed mice divided to three groups(basal diet, hyperlipidemic diet, hyperlipidemic diet + KODT), and observed the change of weight, total cholesterol, triglyceride, SGOT, SGPT, HDL-cholesterol, LDL-cholesterol on the serum per every 7days for 6weeks. To help comparison with the results above, we had tested endothelial cells and liver. The results of this Study were obtained as fallows ; 1. Total cholesterol, triglyceride and LDL-cholesterol were decreased significantly by KODT. 2. HDL-cholesterol was increasd significantly by KODT. 3. SGOT was intended to decrease by KODT, 4. %W was decreased significantly by KODT. 5. In case of supplying KODT, WBC attatched on endothelial cells and vacuoles in muscular layer were not observed. 6. In case of supplying KODT, fatty degeneration was not observed in liver portal area.

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Effects of Houttyunia cordata Ethanol Extracts on Serum Lipids and Antioxidant Enzymes in Rats Fed High Fat Diet (고지방 식이에 따른 어성초 추출물 투여가 혈청지질 및 항산화 효소 활성에 미치는 영향)

  • 정차권;함승시;이상영;오덕환;최수용;강일준;남상명
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.28 no.1
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    • pp.205-211
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    • 1999
  • Effects of Houttuynia cordata ethanol extracts on lipid metabolism and antioxidant enzymes in Sprague Dawley male rats were investigated. High fat used in the diet mixture included 10% of lard, 1% of cholesterol and 0.25% of sodium cholate. Total serum cholesterol contents of the rats fed Houttuynia cordata extracts were decreased compared to the control. On the other hand, HDL cholesterol contents were increased along with the decrease of athrogenic index. When high fat diet was fed, total serum cholesterol contents were significantly increased(p<0.01) with the athrogenic index increase of four times of the control. With the administration of Houttuynia cordata extract HDL cholesterol was increased by 53% in the high fat diet group. Antioxidant enzymes including GST and catalase activities were increased comparing the control. On the otherhand, the extracts lowered phospholipid(p<0.01), GOT, GPT, Cu,Zn SOD and alkaline phosphatase enzyme activities in the serum which are related to the liver functions. Therefore, the above results suggest that Houttuynia cordata ethanol extracts can help to maintain normal liver functions and help to protect from peroxidative damages caused by excess dietary fat intake.

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The Effect of Green Tea on the Lipid Composition of Serum and Liver and the Activities of Antioxidative Enzymes in Rats (녹차가 흰쥐의 혈청 및 간의 지질성분과 항산화계 효소 활성도에 미치는 영향)

  • 정희정;유영상
    • Journal of the East Asian Society of Dietary Life
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    • v.6 no.1
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    • pp.41-49
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    • 1996
  • This research was performed to Investigate the effects of green tea on the lipid composition of serum and liver and the specific activities of antioxidative enzymes. Male Sprague Dawley rats were fed 10% fat diet with lard and fish oil. Powdered green tea was added to the lard and fish oil diet at the level of 0.1% and 1%. After 6 weeks of feeding, serum and liver were obtained from experimental rats. Then we measured the concentration of total cholesterol, HDL-cholesterol and triglyceride. From liver cytosolic fraction, we analized the specific activities of superoxide dismutase, glutathione peroxidase and glutathione S-transferase. The level of total cholesterol and triglyceride were decreased and the ratio of HDL-cholesterol to total cholesterol was increased by the fish oil in the serum. But in the liver, the level of total cholesterol was increased by the fish oil and green tea than the lard. The specific activities of glutathione S-transferase were more increased in the fish oil than the lard. There was not effect of the green tea of daily dose on the lipid composition of serum and liver and the specific activities of antioxidative enzymes in rats.

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The Effect of Hyungbangdojucksan-Gami and Kamsuchunilhwan on the Obesity in the Rats (형방도적산가미방(荊防導赤散加味方)과 감수천일환(甘遂天一丸)이 백서(白鼠)의 비만(肥滿)에 미치는 효과(效果))

  • Kim, Jong-Won;Kim, Eun-Young
    • Journal of Sasang Constitutional Medicine
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    • v.12 no.2
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    • pp.184-194
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    • 2000
  • 1.Purpose This study was researched in order to investigate the effect of Hyungbangdojucksan-Gami and Kamsuchunilhwan on the obesity in rats. 2. Methods The rats were divided into 10 groups - The normal group fed with normal diet. One of the sample groups fed with high fat diet, and since fifth week had fed with Hyungbangdojucksan-Gami. The other sample groups fed with high fat diet, and since fifth week had fed with Kamsuchunilhwan. The control group fed with high fat diet, and since fifth week had fed sodium chloride. 3. Results 1. The rate of increasing weight was significantly decreased after oral administration of Hyungbangdojucksan-Gami and Kamsuchunilhwan. 2. The rate of feeding effect was not significantly decreased after oral administration of Hyungbangdojucksan-Gami and Kamsuchunilhwan. 3. After oral administration of Hyungbangdojucksan-Gami, the quantities of total cholesterol, HDL cholesterol, LDL cholesterol and triglyceride on the serum were significantly decreased but that of lipid peroxide on the serum was significantly increased. 4. After oral administration of Kamsuchunilhwan., the quantities of glucose, total cholesterol, LDL cholesterol and triglyceride on the serum were significantly decreased but those of HDL cholesterol, lipid peroxide on the serum were significantly increased. 4.Conclusion Hyungbangdojucksan-Gami and Kamsuchunilhwan have significant effects on the obesity in the rats.

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Effects of Typha Angustata on Hyperlipidemia Rats Induced by Triton WR-1339 (Triton WR-1339로 유발된 흰쥐의 고지혈증(高脂血症)에 대한 포황(蒲黃)의 실험적(實驗的) 연구(硏究))

  • Lee Sun-Mo;Jeong Chan-Gil;Kim Kwang-Ho;Soh Kyung-Sun
    • Journal of Society of Preventive Korean Medicine
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    • v.8 no.1
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    • pp.33-45
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    • 2004
  • In order to study the effects of Typha angustata on hyperlipidemia, we divided the rats into three groups(normal group, control group & sample group) and perfomed the experimental research. Hyperlipidemia rats were induced by Triton WR-1339 for 3days. The sample group was administerd the extract of Typha angustata 2ml/200g for 3 days and control group was administerd equal dose of saline. And then we measured the amount of serum Total cholesterol, Triglyceride, LDL-cholesterol, HDL-cholesterol, and Phospholipid. The results were as follows: 1. Typha angustata showed decreasing effects on Total cholesterol, Triglyceride, LDL-cholesterol, and Phospholipid levels in serum significantly(p<0.01) 2. Typha angustata showed and showed increasing effects on HDL-cholesterol level in serum significantly(p<0.05). According to the above results, Typha angustata showed significant decreasing effects on hyperlipidemia, and it is considered that it is appropriate to apply for hyperlipidemia.

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Hypoglycemic Effect of Fractions of Cassia tora Extract in Streptozotocin-Induced Diabetic Rats (결명자 분획물이 당뇨 유발 흰쥐의 혈당에 미치는 영향)

  • 임숙자;한혜경
    • Korean journal of food and cookery science
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    • v.13 no.1
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    • pp.23-29
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    • 1997
  • The hypoglycemic effect of fractions of methanol extract of Cassia tora was investigated in diabetic rats. Sprague-Dawley male rats weighing 180∼230 g were divided into 6 groups. Diabetes was induced in the male rats by intravenous injection of streptozotocin at a dose of 45 mg/kg dissolved in citrate buffer (pH 4.5). The diabetic animals then had plasma glucose concentration of above 300 mg/㎗. Fractions of methanol extract of Cassia tora were administered orally into the diabetic rats for 14 days after streptozotocin injection. The food intake and body weight gain were monitored and plasma levels of glucose, triglyceride, free fatty acid, HDL-cholesterol, cholesterol and ALT activity were determined. Levels of glycogen, cholesterol and triglyceride in liver were analysed. Weights of liver and kidney were lighter in all the fraction-administered groups than streptozotocin-control group. Plasma glucose level was significantly decreased by the administration of butanol fraction at 14 days. Plasma triglyceride levels were lower in chloroform, butanol and H$_2$O fraction-administered groups compared to streptozotocin-control group. Plasma cholesterol and HDL-cholesterol levels were not significantly different in all groups. Administrations of each of the four fractions have decreased plasma free fatty acid level, ALT activity and liver triglyceride levels in the diabetic rats. Liver glycogen levels in chloroform, butanol and H$_2$O fraction-administered groups were higher than streptozotocin-control group. It is suggested from the results that butanol fraction of methanol extract of Cassia tora may contain the antihyperglycemic compounds.

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