• Title/Summary/Keyword: low-density lipoprotein(LDL)

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Fenofibrate Reduces Age-related Hypercholesterolemia in Normal Rats on a Standard Diet

  • Han, Ying;Do, Mi-Hyang;Kim, Mi-Sun;Seo, Eun-Hui;Park, Mi-Kyoung;Kim, Duk Kyu;Lee, Hye-Jeong;Seo, Su-Yeong
    • The Korean Journal of Physiology and Pharmacology
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    • v.14 no.2
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    • pp.77-81
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    • 2010
  • Plasma cholesterol is increased in normal aging in both rodents and humans. This is associated with reduced elimination of cholesterol and decreased receptor-mediated clearance of plasma low-density lipoprotein (LDL) cholesterol. The aims of this study were: (1) to determine age-related changes in plasma lipid profiles, and (2) to determine the effect of fenofibrate, an activator of peroxisome proliferator activated receptor alpha (PPAR $\alpha$), on plasma lipid profiles in normal rats on a standard diet. Male Sprague-Dawley (SD) rats (n=15) were fed standard chow and water from 10 to 25 weeks of age. During that period, we measured daily food intake, body weight, fasting and random blood glucose levels, plasma total cholesterol (TC), triglycerides (TG), and free fatty acid (FFA) levels. At 20 weeks of age, all rats were randomly divided into two groups: a fenofibrate group (in which rats were gavaged with 300 mg/kg/day of fenofibrate) and a control group (gavaged with water). Fenofibrate treatment lasted 5 weeks. There were no significant changes in daily food intake, blood glucose, and plasma TG level with age. Body weight, plasma TC, and FFA levels were significantly increased with age. Fenofibrate significantly decreased plasma concentrations of TC and FFA, which had been increased with age. However, fenofibrate did not influence the plasma concentration of TG, which had not increased with age. These results suggest that fenofibrate might have a novel role in preventing age-related hypercholesterolemia in SD rats on a normal diet.

Effects of an aqueous extract of purple sweet potato on nonalcoholic fatty liver in high fat/cholesterol-fed mice (고지방/고콜레스테롤 식이를 섭취한 마우스에서 자색고구마 열수추출물 보충이 지방간 저항성에 미치는 영향)

  • Lee, You Jin;Yang, Yoon Kyoung;Kim, You Jin;Kwon, Oran
    • Journal of Nutrition and Health
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    • v.48 no.1
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    • pp.1-8
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    • 2015
  • Purpose: Anthocyanins from purple sweet potato (PSP) have been investigated in vitro and in animals and found to have a protective effect against oxidative hepatic damage. In this study, we investigated that aqueous extract of PSP can ameliorate the dysfunction of lipid metabolism in mice fed a high fat/cholesterol diet. Methods: Forty C57BL/6J mice were randomly divided into 5 groups (n = 8) and fed one of the following diets for 8 weeks; normal fat (NF) diet; high fat/cholesterol (HFC) diet; HFC with 1.25% PSP (HFPL) diet; HFC with 2.5% PSP (HFPM) diet; HFC with 5% PSP (HFPH) diet. Results: Non-alcoholic fatty liver was manifested in the HFC group by showing increased levels in plasma alanine aminotransferase (ALT) activity, total cholesterol (TC) and low density lipoprotein cholesterol (LDL-C), increased level of TC and presence of many large lipid droplets in the liver, and increased fat cell size in the HFC group compared with the NF group. However, administration of HFC induced a significant decrease in food intake, resulting in decrease in fat mass. Co-administration of PSP did not lead to reversal of body weight changes, ALT activity, and lipid levels in plasma and the liver, but suppressed excess enlargement of the fat cell size through increasing carnitine palmitoyltransferase-1 (CPT-1) gene expression in the liver. Accordingly, the number of fat droplets in the liver was reduced in PSP administered groups. Conclusion: Taken together, these results suggest that PSP may have a protective effect on the dysfunction of lipid metabolism. Conduct of further studies on the coordinated regulation of PSP for lipid metabolic homeostasis at the liver-adipose tissue axis is needed.

Changes in Results of Vital Signs, Blood Tests, and Functional Tests after Taking Cheongsimyeonja-tang (청심연자탕 복용에 따른 생체 징후, 혈액 검사, 기능 검사 결과의 변화)

  • Cho, Jae-hyun;Bae, Go-eun;Seo, Hee-jeong;Choi, Jin-yong;Shim, So-hyun;Han, Chang-woo;Kim, So-yeon;Choi, Jun-yong;Park, Seong-ha;Yun, Young-ju;Lee, In;Kwon, Jung-nam;Lee, Si-woo;Hong, Jin-woo
    • The Journal of Internal Korean Medicine
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    • v.38 no.6
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    • pp.971-979
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    • 2017
  • Objectives: The aim of this study was to analyze the effects of Cheongsimyeonja-tang on the human body. Methods: This was a retrospective study, conducted using electronic medical records (EMR). Appropriate clinical cases were identified and databased through EMR. Changes of vital signs, blood tests, and functional tests before and after taking Cheongsimyeonja-tang were determined. Results: There were several significant changes after taking Cheongsimyeonja-tang. Hemoglobin, total blood proteins, and total bilirubin were increased. Eosinophil, aspartate aminotransferase, total cholesterol, and low-density lipoprotein cholesterol were decreased. Conclusions: Cheonseomyeonja-tang had significant effects, including improvement of blood cell count (increase of red blood cells and hemoglobin), improvement of blood lipid level (decrease of total cholesterol and LDL-cholesterol), and blood pressure control (reduction of systolic blood pressure).

A Experimental Study on the Effect of Kami-Daesihotang on Hyperlipidemia & Hypertension (대시호탕가미방(大柴胡湯加味方)이 고혈압(高血壓) 및 고지혈증(高脂血症)에 미치는 영향(影響))

  • Park, Chi-Sang;Park, Chang-Gook;Han, Seung-Dong;Park, Soon-Dal
    • The Journal of Internal Korean Medicine
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    • v.19 no.2
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    • pp.159-184
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    • 1998
  • The aim of the study was the experiment of the effect that Kami-Daesihotang had on the essential hypertension and hyperlipidemia. Rats were orally administered with Kami-Daesihotang for 30days and the constituent of the plasma and serum were analysed at the 10th, 20th and 30th day from the first day of experiment, respectively. The heart rate, blood pressure, plasma renin activity, plasma level of aldosterone, catecholamine, sodium and angiotensin II were measured after an oral administration of Kami-Daesihotang in SHR. In addition, serum levels of total cholesterol, triglyceride, HDL-cholesterol, LDL-cholesterol and total lipid were measured with cholesterol-fed rats. The results were summarized as following ; 1. Single-dosage Kami-Daesihotang & double-dosage Kami-Daesihotang remarkably decreased the blood pressure in SHR. 2. Double-dosage Kami-Daesihotang were recognized as having the effect on the decreased of the pulse rate in SHR. 3. Plasma renin activity was significantly decreasd in SHR after single-dosage Kami-Daesihotang & double-dosage Kami-Daesihotang treatment. 4. Double-dosage Kami-Daesihotang considerably reduced the plasma angiotensin level in SHR. 5. Noticeable decreased of plasma norepinephrine level was showed in SHR, after single-dosage Kami-Daesihotang & double-dosage Kami-Daesihotang treatment. 6. Single-dosage Kami-Daesihotang & double-dosage Kami-Daesihotang noticeable reduced body weight in hyperlipidemia rats which had fed with 1% cholesterol. 7. Single-dosage Kami-Daesihotang & double-dosage Kami-Daesihotang had a significantly decreasing effect on serum total cholesterol in hyperlipidemia rats which had fed with 1% cholesterol. 8. Serum triglyceride level was importantly decreased in hyperlipidemia rats which had fed with 1% cholesterol, after single-dosage Kami-Daesihotang & double-dosage Kami-Daesihotang treatment. 9. Remarkable decreased of serum low density lipoprotein cholesterol level was found in hyperlipidemia rats which had fed with 1% cholesterol, after single-dosage Kami-Daesihotang & double-dosage Kami-Daesihotang treatment. 10. Double-dosage Kami-Daesihotang was showed a significantly decreasing effect on serum total lipid level in hyperlipidemia rats which had fed with 1% cholesterol. 11. Single-dosage Kami-Daesihotang noticeably reduced organ weight of liver, kidney, spleen and testis in hyperlipidemia rats which had fed with 1% cholesterol. Double-dosage Kami-Daesihotang significantly decreased organ weight of liver, kidney and spleen in hyperlipidemia rats. These Findings suggest a possible anti-hypertensive and hyperlipidemic effect of Kami-Daesihotang.

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Black ginseng extract ameliorates hypercholesterolemia in rats

  • Saba, Evelyn;Jeon, Bo Ra;Jeong, Da-Hye;Lee, Kija;Goo, Youn-Kyoung;Kim, Seung-Hyung;Sung, Chang-Keun;Roh, Seong-Soo;Kim, Sung Dae;Kim, Hyun-Kyoung;Rhee, Man-Hee
    • Journal of Ginseng Research
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    • v.40 no.2
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    • pp.160-168
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    • 2016
  • Background: Ginseng (Panax ginseng Meyer) is a well-characterized medicinal herb listed in the classic oriental herbal dictionary as "Shin-nong-bon-cho-kyung." Ginseng has diverse pharmacologic and therapeutic properties. Black ginseng (BG, Ginseng Radix nigra) is produced by repeatedly steaming fresh ginseng nine times. Studies of BG have shown that prolonged heat treatment enhances the antioxidant activity with increased radical scavenging activity. Several recent studies have showed the effects of BG on increased lipid profiles in mice. In this study report the effects of water and ethanol extracts of BG on hypercholesterolemia in rats. To our knowledge, this is the first time such an effect has been reported. Methods: Experiments were conducted on male Sprague Dawley rats fed with a high-cholesterol diet supplemented with the water and ethanol extracts of BG (200 mg/kg). Their blood cholesterol levels, serum white blood cell levels, and cholesterol-metabolizing marker genes messenger RNA (mRNA) expression were determined. Liver and adipose tissues were histologically analyzed. Results: We found that BG extracts efficiently reduced the total serum cholesterol levels, low-density lipoprotein (LDL) levels with increased food efficiency ratio and increased number of neutrophil cells. It also attenuated the key genes responsible for lipogenesis, that is, acetyl-coenzyme A (CoA) acetyltransferase 2, 3-hydroxy-3-methyl-glutaryl-CoA reductase, and sterol regulatory element-binding protein 2, at the mRNA level inside liver cells. Furthermore, the BG extract also reduced the accumulation of fat in adipose tissues, and inhibited the neutral fat content in liver cells stained with hematoxylin and eosin and oil red O. Conclusion: Administration of BG extracts to Sprague Dawley rats fed with high-cholesterol diet ameliorated hypercholesterolemia, which was mediated via modulation of cholesterol-metabolizing marker genes. This data throw a light on BG's cardioprotective effects.

Independent beneficial effects of aged garlic extract intake with regular exercise on cardiovascular risk in postmenopausal women

  • Seo, Dae-Yun;Lee, Sung-Ryul;Kim, Hyoung-Kyu;Baek, Yeong-Ho;Kwak, Yi-Sub;Ko, Tae-Hee;Kim, Na-Ri;Rhee, Byoung-Doo;Ko, Kyoung-Soo;Park, Byung-Joo;Han, Jin
    • Nutrition Research and Practice
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    • v.6 no.3
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    • pp.226-231
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    • 2012
  • The purpose of the study was to assess the effects of a 12 weeks aged garlic extract (AGE) regimen with regular exercise on cardiovascular disease (CVD) risk in postmenopausal women. A total of 30 postmenopausal women ($54.4{\pm}5.4$ years) were randomly divided into the following four groups: Placebo (Placebo; n = 6), AGE intake (AGEI; n = 8), exercise and placebo (Ex + Placebo; n = 8), exercise and AGE (Ex + AGE; n = 8) groups. The AGE group consume 80 mg per day, and exercise groups performed moderate exercise (aerobic and resistance) three times per week. After 12 weeks of treatment, body composition, lipid profile, and CVD risk factors were analyzed. Body weight was significantly decreased in AGEI, Ex + Placebo, and Ex + AGE groups compared to baseline. Body fat % was significantly decreased in the AGEI and Ex + Placebo groups. Body mass index (BMI) was significantly decreased in the AGEI, Ex + Placebo, and Ex + AGE groups. Fat-free mass was significantly decreased in the AGEI group. Total cholesterol (TC) was significantly lower in the Ex + Placebo compared to the Placebo group. AGE supplementation or exercise effectively reduced low-density lipoprotein (LDL-C). Triglyceride (TG) was significantly increased in the AGEI group. Malondialdehyde (MDA) levels were significantly decreased in the AGEI, Ex + Placebo, and Ex + AGE compared to the placebo group. AGE supplementation reduced homocysteine levels regardless of whether the women also exercised. The present results suggest that AGE supplementation reduces cardiovascular risk factors independently of exercise in postmenopausal women.

Cholesterol Improvement Effects of Fermented Defatted Soybean Grits Added to Corchorus olitorius (몰로키아 첨가 탈지대두grit(defatted soybean grit) 발효물의 콜레스테롤 개선 효과)

  • Kim, Hyun-Jeong;Lee, Sung-Gyu;Lee, Sam-Pin;Lee, In-Seon
    • Korean Journal of Food Science and Technology
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    • v.43 no.3
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    • pp.375-380
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    • 2011
  • This study was performed to investigate cholesterol improvement effects of adding fermented defatted soybean grit (FD) and FD added to 5 or 10% Corchorus olitorius (FDC). Cholesterol adsorption in the FD and FDC group was more than 70%. Apolipoprotein AI and CIII improved in HepG2 cells, and a greater improvement effect was shown in FDC than that in FD. We also investigated the effect of FDC on body lipid metabolism and a high-fat diet for 4 weeks. Rats were divided into control (Con), high-fat (HF), HF treated with 20% FD (HF-FD), and HF treated with 20% FDC (HF-FDC) groups. Plasma total cholesterol and low density lipoprotein-cholesterol concentrations, hepatic total cholesterol, and triglyceride contents were significantly lower in the HF-FDC group than those in the HF group. Additionally, fecal total cholesterol and triglyceride contents increased in rats treated with FDC. Hepatic 3-hydroxy-3-methylglutaryl-coenzyme A reductase activities were significantly lower in the HF-FDC group than those in the HF group.

Effects of Paprika (Capsicum annuum L.) on Serum Lipid Profile and $\alpha$-Tocopherol Concentration in Rats Fed a High-Cholesterol Diet (파프리카 급여가 고콜레스테롤 식이 흰쥐의 혈청 지질과 $\alpha$-Tocopherol 농도 변화에 미치는 영향)

  • Park, Jae-Hee;Noh, Sang-K.;Kim, Chang-Soon
    • The Korean Journal of Food And Nutrition
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    • v.23 no.3
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    • pp.311-317
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    • 2010
  • In conclusion, rats were fed diets containing either NC, HC, HC-FDP, HC-WEP, or HC-EEP for 6 weeks. At the 6th week, increases in body weight and visceral fat were lower in the paprika fed groups as compared to the HC group. Serum levels of triglycerides, total cholesterol, low density lipoprotein cholesterol, and atherogenic index values were significantly lower in the paprika diet fed groups than the HC group (p<0.05). In particular, the lipid lowering effects in the HC-EEP group were superior among the paprika fed groups. Also, serum $\alpha$-tocopherol levels were lower in the control group compared to the paprika fed groups. The supplementation of paprika may exert lipid lowering effects and saving effect of $\alpha$-tocopherol in the serum of high-cholesterol diet fed rats. However, it should be noted that the results are based on very small sample numbers and a short experimental period.

The Effect of Metabolic syndrome Management Program Applying Participatory Action-Oriented Training Principle (참여형 개선기법(PAOT)의 원리를 적용한 대사증후군 관리 프로그램 효과분석)

  • Yoon, Seong-Yong;Woo, Kuck-Hyeun;Kim, Hwa-Sung;Kim, Yong-Bae;Kim, Jin-Seok;Jo, Seong-Yong;Lee, Sung-Soo
    • Korean Journal of Health Education and Promotion
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    • v.31 no.5
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    • pp.81-95
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    • 2014
  • Objectives: The purpose of this study was to apply participatory action-oriented training (PAOT) principle for the management of metabolic syndrome and to assess its effectiveness in the workplace. Methods: The metabolic syndrome management program applying participatory action-oriented training (PAOT) principle is constructed action checklist, Group discussion, self-creation of an action plan, after 3 months, 6 months, 1 year, the practice carried out check up and encourage practice activity. Results: The seventy-seven workers who participated in the metabolic syndrome management program made a total of 246 action plans, 3.8 action plans per person and 234 action plans were achieved after one year, so that 81.0% of action plans have been achieved. After 1 year, in the intervention group, systolic blood pressure (SBP) and diastolic blood pressure (DBP), body mass index (BMI), the risk factors score decreased statistically significant, and metabolic syndrome prevalence decreased 54.8%. whereas the control group also showed a significant decreased in the mean systolic and diastolic blood pressure, the risk factors score. but, low-density lipoprotein (LDL) was significantly increased. Conclusions: To improve the effectiveness of metabolic syndrome management program applying participatory action-oriented training (PAOT) principle, the need to continues implementing programs and analysis of the long-term effects are required. Participatory action-oriented training (PAOT) principle can applying without cost and time, the human burden for the prevention and management of chronic diseases such as metabolic syndrome.

Biological Activity of Organic Solvent Fractions from Lythrum salicaria L. (Root) (털부처꽃 뿌리로부터 조제된 분획물의 생리활성)

  • Lee, Seung-Eun;Kim, Geum-Soog;Han, Hee-Sun;Lee, Eun-Suk;Kim, Young-Ok;Lee, Jeong-Hoon;Seong, Nak-Sul;Lee, Sang-Won;Kim, Young-Chul
    • Korean Journal of Medicinal Crop Science
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    • v.18 no.5
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    • pp.323-328
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    • 2010
  • Root extract of Lythrum salicaria reported a hepato-protective effect on $CCl_4$-induced liver toxicity of rat was prepared into fractions such as n-hexane up layer (HA), n-hexane down layer (HB), diethyl ether (E), ethylacetate (EA), n-butanol (B) and water (W). Fractions prepared were tested their activities in vitro and in vivo condition. All of the fractions showed effective antioxidant asctivities on DPPH radical and $CuSO_4$-induced oxidation of human low density lipoprotein and E fraction showed the highest inhibitory effect (98.1% at $50\;{\mu}g/m{\ell}$) on linoleic acid autoxidation at $40^{\circ}C$, which was more effective than $\alpha$-tocopherol (82.4%). Five fractions (H = HA plus HB, E, EA, B, and W, 150 mg/kg/day) were fed into Sprague Dawley, male rats for 4 days, which were intoxicated with intra-peritoneal injection of carbon tetrachloride ($1\;m{\ell}/kg$ in corn oil) at the 4th day and were sacrificed in 24 hrs. Serum tumor necrosis factor-alpha (TNF-$\alpha$), a proinflammatory cytokine, elevated with $CCl_4$-intoxication in negative control group ($83\;pg/m{\ell}$) was significantly decreased in E fraction-supplemented group ($18\;pg/m{\ell}$). Cu, Zn-superoxide dismutase (SOD) activity increased in negative control group (0.12 U/mg protein) was decreased in E fraction (0.07 U/mg protein). From the results, it is suggested that ether fraction from root extract of L. salicaria would be a potent antioxidant candidate for ameliorating liver injury induced by chemical intoxicant.