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Query: UMLS:C0004153 (atherosclerosis)
 77,401 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Cardiovascular and metabolic risk depends not only on the overall obesity but also fat distribution is more powerfull predictor for risk factors. Adipose tissue produces and secretes a variety of bioactive peptides - adipokines The most recently described adipocyte secretory proteins contribute to the pathogenesis of impaired insulin secretion and insulin resistance, endothelial dysfunction, a proinflammatory state and promote progression of atherosclerosis. This review presents an overview of the adipose tissue secreted proteins (leptin, TNF-alpha, IL-6, adiponectin, resistin, visfatin, ASP, FIAF, MT) role and their regulation in the context of abdominal obesity and the adverse metabolic consequences.
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PMID:Metabolic effects associated with adipose tissue distribution. 1735 88

To elucidate the relationship between metabolic syndrome (MetS) and cerebrovascular stenosis, we performed comparative studies of MetS and its components between ischemic stroke patients with intra- and extracranial atherostenosis. We evaluated 378 acute ischemic stroke patients who underwent brain magnetic resonance (MR) imaging and MR angiography. Stenosis was diagnosed in cases showing a degree of luminal narrowing of > or = 50%. The stroke subtypes were categorized as large artery atherosclerosis (LAA), small artery occlusion (SAO), cardioembolism (CE), and stroke of undetermined etiology (SUE). MetS was defined using the criteria of the Adult Treatment Panel III. The mean carotid intimal medial thickness values showed increased tendency as the number of MetS components increased (P < 0.001). Regardless of stroke subtype, the MetS (+) group showed an increasing tendency toward stenosis (LAA, SAO, all P < 0.001; CE, P = 0.001; SUE, P = 0.077). MetS was independently associated with intracranial atherosclerosis (odds ratio, 3.58; 95% CI, 2.28-5.63), which was prominent with more severe MetS components after adjustment for other risk factors (P < 0.001). Amongst the component conditions, elevated blood pressure, increased blood glucose/hyperglycemia, and abdominal obesity were dominantly associated with stenosis (all P < 0.001). Modifications of the individual MetS components need to be considered for stroke prevention because of intracranial atherogenic progression.
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PMID:Metabolic syndrome is more associated with intracranial atherosclerosis than extracranial atherosclerosis. 1738 84

The metabolic syndrome is an insulin-resistant state that is characterized by a cluster of cardiovascular risk factors, including abdominal obesity, hyperglycemia, elevated blood pressure and combined dyslipidemia. In this review, we discuss the role of the bile-acid-activated farnesoid X receptor (FXR) in the modulation of the metabolic syndrome. Owing to its regulatory actions in lipid and glucose homeostasis, FXR is a potential pharmacological target. Moreover, the observation that FXR also influences endothelial function and atherosclerosis indicates a regulatory role in the cardiovascular complications that are associated with the metabolic syndrome. The pharmacological activation of FXR leads to a complex response that integrates beneficial actions and potentially undesirable side-effects. Thus, the identification of selective FXR modulators (selective bile acid receptor modulators) is required for the development of compounds that can be used to treat the metabolic syndrome.
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PMID:FXR: a promising target for the metabolic syndrome? 1741 31

Partial androgen deficiency of aging male (PADAM) manifests with sexual dysfunction and is associated with many diseases, primarily, cardiovascular. After the age of 30-40 a testosterone level falls 1-2% a year. The number of men with testosterone deficiency grows from 8% in 40-60-year-olds to 85% at the age over 80 years. Low testosterone correlates with such risk factors of cardiovascular diseases as dyslipidemia, atherosclerosis, low fibrinolysis, insulin resistance and abdominal obesity. Correction of androgenic deficiency can be conducted with the drug androgel which represents a new system of transdermal testosterone delivery. In contrast to vasoactive drugs, androgel affects pathogenetic mechanisms of erectile dysfunction and thus attenuates factors of cardiovascular risk. Androgel is used externally and is more effective than intramuscular and oral analogues. Also, the drug improves lipid spectrum. By activating lipolysis, testosterone reduces the amount of visceral fat thus lowering insulin resistance. A vasodilating effect of androgel positively influences cardiovascular system and penile vessels. The drug acts fast, is effective and safe. Therefore, it can be recommended for correction of erectile dysfunction in patients with old age androgen deficiency and concurrent cardiovascular diseases.
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PMID:[Efficacy and safety of hormonal therapy with androgens (androgel) in men with erectile dysfunction, partial androgen deficiency of aging male and cardiovascular diseases]. 1747 2

The distribution of body fat appears to be an important determinant as patients with abdominal obesity are at greatest cardiovascular risk. Also abdominal obesity is more predictive of coronary risk than simple body mass. On the other hand, weight gain after age 18 increases cardiovascular risk even in patients with normal body mass index. We believe that providing a healthy lifestyle, including dietary and physical activity modification, especially in early adolescence may play an essential part in the battle against atherosclerosis.
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PMID:The role of abdominal obesity and weight gain since adolescence in early atherosclerosis. 1704 78

It has long been recognized the epidemiological association of psoriasis, especially the most severe forms, with several diseases that share a common pathogenic substrate involving TNF-alpha and different target organs (arthritis and Crohn's disease, for example), as well as an increased risk of coronary heart disease and occlusive cardiovascular disease. In the patient with severe psoriasis there is also an increased prevalence of obesity, dyslipemia, adult diabetes mellitus, alcohol abuse and tobacco habit which contribute to the increased risk of mortality associated with atherosclerosis. Recently it has been identified the so-called metabolic syndrome, characterized by the association of abdominal obesity, atherogenic dyslipemia, hypertension, insulin resistance with or without glucose intolerance and a proinflammatory and prothrombotic state as a risk factor for cardiovascular disease. There is evidence that in rheumatoid arthritis as well as in psoriasis, chronic inflammation has a pathogenic role in the metabolic syndrome and associated comorbidities, and its adequate treatment may contribute to revert it. The dermatologist should recognize the elements of the metabolic syndrome and propose the patient with psoriasis, in addition to the optimal dermatologic treatment, changes in life habits and appropriate drug therapy to reduce the risk of cardiovascular morbi-mortality.
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PMID:[Psoriasis, a systemic disease?]. 1766 29

Chronic kidney disease is a worldwide public health problem because it is an important risk factor for cardiovascular disease and premature death. The metabolic syndrome, which is characterized by abdominal obesity, high blood pressure, impaired glucose tolerance, and dyslipidemia, is also an increasingly common disorder and a major risk factor for diabetes and cardiovascular disease. A close association has been found between the metabolic syndrome and the risk for developing renal impairment, clinically expressed in the form of microalbuminuria or chronic kidney disease. Several potential mechanisms, including insulin resistance, renal atherosclerosis, and inflammation, induce the deterioration of renal function. Despite the close association between the metabolic syndrome and renal impairment, it is still unclear whether and to what extent treating the metabolic syndrome will prevent renal impairment. A clinical trial is needed to clarify whether the effect of preventing and treating metabolic syndrome components will result in improved renal prognosis.
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PMID:Albuminuria and chronic kidney disease in association with the metabolic syndrome. 1768 60

The metabolic syndrome (MetS) is a clustering of risk factors known to promote or increase the risk for development of diabetes mellitus and cardiovascular disease (CVD). Approximately one-third of the adult population of developed countries can be categorized as having MetS by different definitions. MetS, even in the absence of diabetes mellitus, is associated with an increased risk of CVD and total mortality. Those with diabetes mellitus are considered a cardiovascular risk equivalent and warrant aggressive management of underlying risk factors to optimize prevention of CVD. Initial evaluation of coronary heart disease risk involves global risk estimation using Framingham or other algorithms for risk prediction. Consideration of screening for novel risk factors such as C-reactive protein, as well as subclinical atherosclerosis (from carotid ultrasound, computed tomography, or ankle-brachial index), can further refine the estimation of future CVD risk. The presence of subclinical atherosclerosis or elevated levels of C-reactive protein can potentially modify recommended treatment goals for lipid and other cardiovascular risk factors. The American Heart Association and US National Heart Lung and Blood Institute have released guidelines for the clinical management of MetS, which focus on lifestyle management for abdominal obesity and physical inactivity, and clinical management of atherogenic dyslipidemia, elevated BP, elevated glucose, and prothrombotic state.
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PMID:Metabolic syndrome: cardiovascular risk assessment and management. 1769 67

The metabolic syndrome (MetS) phenotype is typically characterized by visceral obesity, insulin resistance, atherogenic dyslipidemia involving hypertriglyceridemia and subnormal levels of high density lipoprotein-cholesterol (HDL-C), oxidative stress and elevated cardiovascular risk. The potent antioxidative activity of small HDL3 is defective in MetS [Hansel B, et al. J Clin Endocrinol Metab 2004;89:4963-71]. We evaluated the functional capacity of small HDL3 particles from MetS subjects to protect endothelial cells from apoptosis induced by mildly oxidized low-density lipoprotein (oxLDL). MetS subjects presented an insulin-resistant obese phenotype, with hypertriglyceridemia, elevated apolipoprotein B and insulin levels, but subnormal HDL-C concentrations and chronic low grade inflammation (threefold elevation of C-reactive protein). When human microvascular endothelial cells (HMEC-1) were incubated with oxLDL (200 microg apolipoprotein B/ml) in the presence or absence of control HDL subfractions (25 microg protein/ml), small, dense HDL3b and 3c significantly inhibited cellular annexin V binding and intracellular generation of reactive oxygen species. The potent anti-apoptotic activity of small HDL3c particles was reduced (-35%; p<0.05) in MetS subjects (n=16) relative to normolipidemic controls (n=7). The attenuated anti-apoptotic activity of HDL3c correlated with abdominal obesity, atherogenic dyslipidemia and systemic oxidative stress (p<0.05), and was intimately associated with altered physicochemical properties of apolipoprotein A-I (apoA-I)-poor HDL3c, involving core cholesteryl ester depletion and triglyceride enrichment. We conclude that in MetS, apoA-I-poor, small, dense HDL3c exert defective protection of endothelial cells from oxLDL-induced apoptosis, potentially reflecting functional anomalies intimately associated with abnormal neutral lipid core content.
Atherosclerosis 2008 Mar
PMID:Metabolic syndrome features small, apolipoprotein A-I-poor, triglyceride-rich HDL3 particles with defective anti-apoptotic activity. 1786 79

Abdominal obesity is a risk factor for cardiovascular disease worldwide, and it is becoming a dramatic issue for national health systems. Overweight and obesity are highly associated with multiple comorbidities, elevated blood pressure values, dyslipidaemia, reduced insulin sensitivity and alterations of large and minor vessels. Activation of the renin-angiotensin system (RAS) in adipose tissue may represent an important link between obesity and hypertension. Angiotensin II has been shown to play a role in adipocyte growth and differentiation. Adipocytes also secrete adiponectin, enhancing insulin sensitivity and preventing atherosclerosis. Blockade of the RAS with either an angiotensin-converting enzyme inhibitor or an angiotensin II receptor blocker results in a substantial increase in adiponectin levels and improved insulin sensitivity. Obesity-related hypertension needs a comprehensive approach to treatment including both weight loss and pharmacological therapies. Antihypertensive drugs prescription should be based on guidelines recommendations for management of hypertension, taking into account the growing evidences about the relationship between some antihypertensive drugs and the development of new-onset diabetes. This review discusses the role of RAS in the relationship between obesity, essential hypertension and insulin resistance.
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PMID:Obesity, essential hypertension and renin-angiotensin system. 1790 24


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