• Title/Summary/Keyword: atherosclerosis cholesterol

Search Result 262, Processing Time 0.023 seconds

Effects of Houttuynia cordata Thunb on Atherosclerosis and Lipidperoxidation in 2,3,7,8-TCDD-Damaged Rats

  • Kim, Hee-Jin;Lee, Sang-Hun;Lee, Jin-Young;Ha, Bae-Jin
    • Proceedings of the PSK Conference
    • /
    • 2003.10b
    • /
    • pp.208.2-208.2
    • /
    • 2003
  • TCDD (2,3,7,8-tetrachlorodibenzo-p-dioxin), one of the notorious toxic environmental pollutants, damages various organs including liver and is regarded as an endocrine disrupter. To investigate the effects of Houttuynia cordata Thunb (HCT) on the biochemical parameters of function, liver and serum of TCDD-treated rats were used. After 7 days from TCDD (1 $\mu\textrm{g}$/kg) injection, HCT (200 mg/kg) was administered into rats intraperitoneally for 4 weeks. The lipidperoxide content was examined by measuring the level of total cholesterol, HDL-cholesterol, LDL-cholesterol, total lipid and triglyceride (TG) in serum, and malondialdehyde (MDA) in liver tissue of rats. (omitted)

  • PDF

Associations between Carotid Intima-media Thickness, Plaque and Cardiovascular Risk Factors (경동맥 내중막 두께 및 죽종과 심 혈관 질환 위험요인과의 관련성)

  • Lee, Young-Hoon;Cui, Lian-Hua;Shin, Min-Ho;Kweon, Sun-Seog;Park, Kyeong-Soo;Jeong, Seul-Ki;Chung, Eun-Kyung;Choi, Jin-Su
    • Journal of Preventive Medicine and Public Health
    • /
    • v.39 no.6
    • /
    • pp.477-484
    • /
    • 2006
  • Objectives : This study was conducted to examine the association between the carotid artery intima-media thickness (IMT), plaque and cardiovascular risk factors according to gender and age. Methods : The data used for this study were obtained from 1,507 subjects (691 men, 816 women), aged 20-74 years, who participated in 'Prevalence study of thyroid diseases' in two counties of Jeollanam-do Province during July and August of 2004. The body mass index (BMI) and waist hip ratio (WHR) were calculated by anthropometry The blood pressure, pulse rate, pulse pressure, total cholesterol, triglyceride, HDL cholesterol and fasting blood sugar level were also measured. Ultrasonography was used to measure the carotid artery IMT and plaque. IMT measurements were performed at 6 sites, including both common carotid arteries, and the bulb and internal carotid arteries. The definition of the 'mean IMT' was mean value obtained from these 6 sites. Results : The ${\pm}$ standard deviation IMT values were $0.65{\pm}0.14\;and\;0.60{\pm}0.13mm$ in men and women (p<0.001), respectively. The data were analyzed according to gender and the 50 year age groups. In a multiple linear regression analysis, age and hypertension were positively associated with the mean IMT in both men and women, aged<50 years. Age, total cholesterol and smoking (current) were positively associated with the mean IMT in men $(\geq50\;years)$. Age was positively associated with the mean IMT in women $(\geq50\;years)$, but the HDL cholesterol level was negatively associated. The prevalence of plaques was 44.2%(196/443) in men and 19.4%(89/459) in women, for those greater than 50 years of age. In a multiple logistic regression analysis, age (OR=1.090, 95%CI=1.053-1.129), HDL cholesterol (OR=0.964, 95%CI=0.944-0.984), total cholesterol (OR=1.009, 95%CI=1.002-1.017)and BMI (OH=0.896, 95%CI=0.818-0.983) were independently associated with plaques in men; whereas, age (OR=1.057, 95%CI=1.012-1.103), HDL cholesterol (OR=0.959, 95%CI=0.932-0.986), pulse pressure (OR=1.029, 95%CI=1.007-1.050) and triglycerides (OR=0.531, 95%CI=0.300-0.941) were independently associated with plaques in women. Conclusions: There were significant gender and aging differences in the association between the IMT, plaque and cardiovascular risk factors. Therefore, for the prevention of atherosclerosis, selective approaches should be considered with regard to gender and age factors.

Effects of Ganoderma lucidum on Lipid Metabolism in Dietary Hypercholesterolemic Rats (영지 열수추출액이 식이성 고콜레스테롤 혈증 흰쥐의 지질대사에 미치는 영향)

  • 정승용;김성애;김성희;김한수;김군자;김희숙;정효숙
    • Journal of the Korean Society of Food Science and Nutrition
    • /
    • v.19 no.2
    • /
    • pp.180-186
    • /
    • 1990
  • For the investigation of the effects of G. lucidum on prevention and attention of hypercholeste-rolemia and atherosclerosis dietary hypercholesterolemic rats were fed with 2.0g% G. lucidum extracts for 4 weeks. And then concentrations of total cholesterol triglyceride phospholipid in serum and liver and those of HDL-cholesterol lipid peroxide glucose in serum were analyzed. Concentration of total cholesterol in serum was the lowest in the control group(basal diet+ wa-ter) and HDL-cholesterol in serum were significantly higher in groups of control 2(hyperchole-sterolemic ratslongrightarrowbasal+water) and 4(hypercholesterolemic ratslongrightarrowbasal+G.l. extract) The concentration of triglyceride in serum were signficantly lower in groups 4 and 5(hypercholeste-rolemic ratslongrightarrowcholesterol+G. l. extract) than in the control group. Phospholipid content in serum were not significantly different among all groups. Ttal cholesterol in liver was significa-ntly higher in hypercholesterolemic rats than in the control group and triglyceride concentration were signficantly higher in groups of 3(hypercholesterolemic ratslongrightarrowcholesterol+water) and 5 than others. Phospholipid in liver was significantly higher in group 3 than in the control group but groups of 4 and 5 were lower. As for lipid peroxide in serum was the lowest in group 4 and glucose concentration was lowest in group 5 than in other groups.

  • PDF

Regulatory Effects of Cheunggansoyo-san on Pathophysiological Changes Induced by Hyperlipidemic Diets in the Mice

  • Park Kyung-Ho;NamGung Uk;Lee Yong-Koo;Kang Tak-Lim;Kim Dong-Hee
    • Journal of Physiology & Pathology in Korean Medicine
    • /
    • v.19 no.6
    • /
    • pp.1629-1635
    • /
    • 2005
  • Hyperlipidemia is caused by high dietary intake of cholesterol and saturated fats, and is known as a major risk factor for atherosclerosis. In the oriental medicine, Cheunggansoyo-san (CGSYS) has been used for supplementing hematopoietic function and for treating cardiovascular disorders. In the present study, CGSYS was administered into hyperlipidemic mice. Increases in body weight and cholesterol levels induced by hyperlipidemic diets for 6 weeks were significantly inhibited by CGSYS administration. Serum levels of glucose, triglyceride, SGOT, and SGPT values were all decreased by CGSYS treatment compared with hyperlipidemic dietary mice. Moreover, CGSYS decreased LDL-cholesterol, but increased HDL-cholesterol levels in hyperlipidemic mice. Thus, the present results suggest that CGSYS appears to De effective for down-regulating risk factors of hyperlipidemia.

Antihyperlipidemic Activity of Several Traditional Herbal Medicines on Experimental Hyperlipidemia in Rats (고지혈증 랫트를 이용한 수종 전통 한약제의 항고지혈 효과)

  • Ro, Hwan-Seong;Ko, Woo-Kyoung;Kim, Oon-Ja;Park, Kun-Koo;Cho, Young-Hwan;Park, Hyung-Sup
    • Journal of Pharmaceutical Investigation
    • /
    • v.25 no.4
    • /
    • pp.307-311
    • /
    • 1995
  • Three herbal medicine recipes were tried on the animal model of diet induced hypercholesterolemia to screen for the lipid-lowering effect. The recipes adopted were based on the prescription for atherosclerosis-related symptoms by folk-medicine practioners. Hyperlipidemia was induced in rats by giving the high lipid/cholesterol diet for 7 days. Then, the recipes started with the normal diet. Blood was sampled at 1,2,3 and 5 week-points of the treatment, and levels of total cholesterol, triglyceride, high density lipoprotein and lower density lipoprotein were measured. Dae-shiho-tang decreased total cholesterol level significantly. Hwangryun-haedok-tang and Samhwang-sasim-tang slightly decreased total cholesterol level, although it was not statistically significant.

  • PDF

Vascular health late after Kawasaki disease: implications for accelerated atherosclerosis

  • Cheung, Yiu-Fai
    • Clinical and Experimental Pediatrics
    • /
    • v.57 no.11
    • /
    • pp.472-478
    • /
    • 2014
  • Kawasaki disease (KD), an acute vasculitis that primarily affects young children, is the most common acquired paediatric cardiovascular disease in developed countries. While sequelae of arterial inflammation in the acute phase of KD are well documented, its late effects on vascular health are increasingly unveiled. Late vascular dysfunction is characterized by structural alterations and functional impairment in term of arterial stiffening and endothelial dysfunction and shown to involve both coronary and systemic arteries. Further evidence suggests that continuous low grade inflammation and ongoing active remodeling of coronary arterial lesions occur late after acute illness and may play a role in structural and functional alterations of the arteries. Potential importance of genetic modulation on vascular health late after KD is implicated by associations between mannose binding lectin and inflammatory gene polymorphisms with severity of peripheral arterial stiffening and carotid intima-media thickening. The changes in cholesterol and lipoproteins levels late after KD further appear similar to those proposed to be atherogenic. While data on adverse vascular health are less controversial in patients with persistent or regressed coronary arterial aneurysms, data appear conflicting in individuals with no coronary arterial involvements or only transient coronary ectasia. Notwithstanding, concerns have been raised with regard to predisposition of KD in childhood to accelerated atherosclerosis in adulthood. Until further evidence-based data are available, however, it remains important to assess and monitor cardiovascular risk factors and to promote cardiovascular health in children with a history of KD in the long term.

Inhibitory Effects of Natural Plant Extracts on Lipoprotein-Associated Phospholipase $A_2$, Platelet-Activating Factor Acetylhydrolase (자생식물 추출물의 Lipoprotein-Associated Phospholipase $A_2$, Platelet-Activating Factor Acetylhydrolase 저해활성)

  • Yu, Ha-Na;Cho, Kyung-Hyun;Sok, Dai-Eun;Jeong, Tae-Sook
    • Korean Journal of Pharmacognosy
    • /
    • v.34 no.1 s.132
    • /
    • pp.100-108
    • /
    • 2003
  • The regulation of plasma lipid level, particularly LDL cholesterol, represents the focus of current therapy for atherosclerosis. And $Lp-PLA_2$ is able to hydrolyse oxidized phosphatidylcholine within LDL into lyso-PC and oxidized fatty acids. $Lp-PLA_2$ is a potential biomarker of coronary heart disease and plays an important proinflammatory role in the progression of atherosclerosis. We investigated the inhibitory effects of methanol extracts of 224 natural plants on $Lp-PLA_2$ activity. Seven kinds of methanol extracts of tested plants showed above 50% inhibitory effect with the concentration of $100\;{\mu}g/ml$. The concentrated aqueous suspensions of each methanol extract were partitioned with n-hexane, $CHCl_3$, and EtOAc. Among them, EtOAc extracts of Astilbe chinensis var. davidii (root) and Pourthiaea villosa var. brunnea (leaf) significantly inhibited $Lp-PLA_2$ activity at the same concentration.

Screening of Anti-atherogenic Substances from Insect Resources (곤충자원으로부터 항동맥경화 활성물질 탐색)

  • Park, Doo-Sang;Yoon, Mi-Ae;Xu, Ming-Zhe;Yu, Ha-Na;Kim, Ju-Ryoung;Jeong, Tae-Sook;Park, Ho-Yong
    • Korean Journal of Pharmacognosy
    • /
    • v.35 no.3 s.138
    • /
    • pp.233-238
    • /
    • 2004
  • Lipoprotein-associated phospholipase $A_2\;(Lp-PLA_2)$ is a potential biomarker of coronary heart disease and plays an important proinflammatory role in the progression of atherosclerosis. Also acyl-CoA: cholesterol acyltransferase (ACAT) and oxidized low-density lipoprotein (LDL) playa key role in atherosclerosis, respectively. And so, the inhibitory activities of the methanol extracts of 42 insect resources were examined on $Lp-PLA_2$, ACAT, and LDL oxidation for screening of anti-atherogenic substances. Among them, the methanol extracts of Eurydema rugosa significantly inhibited all of upper three activities. Several kinds of tested insects having high inhibitory effect with the methanol extracts were extracted with n-hexane, ethyl acetate, and acetone, and their inhibitory activities were tested.

Panax ginseng: Inflammation, platelet aggregation, thrombus formation, and atherosclerosis crosstalk

  • Lee, Yuan Yee;Kim, Sung Dae;Park, Seung-Chun;Rhee, Man Hee
    • Journal of Ginseng Research
    • /
    • v.46 no.1
    • /
    • pp.54-61
    • /
    • 2022
  • Ginseng has been widely studied due to its various therapeutic properties on various diseases such as cardiovascular disease (CVD). Cardiovascular disease has been canonically known to be caused by high levels of low-density lipoproteins (LDL) in the bloodstream, in addition to the impaired vasodilatory effects of cholesterol. However, current research on CVD has revealed a cascade of mechanisms involving a series of events that contribute to the progression of CVD. Although this has been elucidated and summarized in previous studies the detailed correlation between platelet aggregation and innate immunity that plays an important role in CVD progression has not been thoroughly summarized. Furthermore, immune cell subtypes also contribute to the progression of plaque formation in the subendothelial layer. Thrombus formation and the coagulation cascade also have a vital role in the progression of atherosclerosis. Hence, in this mini review we aim to elucidate, summarize, and propose the potent therapeutic effect of ginseng on CVD, mainly on platelet aggregation, plaque formation, and thrombus formation.

Elevated Levels of Serum Lipids Accelerate Biological Vascular Aging evaluated by the Second Derivative of Photoplethysmogram Waveform in the Middle-Age Adults (중년 성인남녀의 혈중 지질농도가 가속도맥파에 미치는 영향)

  • Nam, Tong-Hyun;Koh, Hyung-Kyun;Park, Young-Bae
    • Journal of Acupuncture Research
    • /
    • v.19 no.3
    • /
    • pp.126-137
    • /
    • 2002
  • Objective : There is accumulating data that cardiovascular diseases, including hypertension, cerebro-vascular accident, coronary heart disease, relate to atherosclerotic changes. Increased serum levels of lipids could play a role in these circumstances. the SDPTG(the second derivative of photoplethysmogram waveform) is noninvasive methods for evaluating the pulse wave and is correlated with age and other risk factors for atherosclerosis. Methods : To study the effects of serum lipid levels on the SDPTG in the middle-age adults, data on serum lipid levels and the SDPTG were collected in 80 healthy middle age with varying serum lipid concentrations. Biological vascular age was assessed using the SDPTG. the SDPTG consists of an a, b, c, and d wave in systole and an e wave in diastole; an SDPTG aging index(Al) was calculated as (b-c-d-e)/a. Results : Serum triglyceride, total cholesterol, total lipid, phospholipid, HDL cholesterol levels were respectively and significantly correlated with SDPTG Al. Serum lipid levels and blood pressure are age-dependent and the SDPTG is blood pressure-dependent. Restricting analysis to age and blood pressure yield strong positive correlations between serum triglyceride, total lipid levels and SDPTG Al, but no correlations between serum total cholesterol, phospholipid levels and SDPTG Al. Conclusion : The results of this study suggest that preventive acupuncture programs or herbal medications for reducing serum lipid, especially triglyceride, levels in middle-age should include a evaluation of biological vascular aging with the second derivative of photoplethysmogram waveform.

  • PDF