甘油三酯与心血管疾病相关性研究的现状

由于人们生活水平的提高、过多热量的摄入和缺少运动,导致血脂代谢异常发病率逐渐增多。同时,缺血性心血管疾病的发生率也在增加,人们必然将血脂异常与缺血性心血管疾病相联系。国内外大量循证医学证据和流行病学调查研究显示,总胆固醇（TC）、低密度脂蛋白胆固醇（LDL—C）升高和高密度脂蛋白胆固醇（HDL—C）降低是冠心病和缺血性脑卒中的独立危险因素。     

Novel treatments for cardiovascular disease prevention

The purpose of this review is to describe novel pharmacologic and nonpharmacologic preventive therapies, as well as new strategies to improve delivery of available therapies. Cardiovascular disease (CVD) is the leading cause of death worldwide, and prevention plays a critical role in curbing the global epidemic. Despite available treatment for tobacco addiction, platelet inhibition, blood pressure, and lipid lowering for reduction of atherosclerotic disease, significant gaps in treatment of total CVD remain. We review a range of new preventive treatment options, including drugs for tobacco cessation, platelet/thrombotic inhibition, lipid- and blood pressure-lowering; nonpharmacologic options such as left atrial appendage closure devices and caloric restriction; and strategies such as fixed-dose combination drugs, laboratory screening for drug tailoring, and community-based prevention programs. CVD preventive research continues to evolve and provide clinicians and patients with novel pharmacologic and nonpharmacologic therapies, including new preventive strategies.     

Canadian Cardiovascular Society position statement--recommendations for the diagnosis and treatment of dyslipidemia and prevention of cardiovascular disease

Since the last publication of the recommendations for the management and treatment of dyslipidemia, new clinical trial data have emerged that support a more vigorous approach to lipid lowering in specific patient groups. The decision was made to update the lipid guidelines in collaboration with the Canadian Cardiovascular Society. A systematic electronic search of medical literature for original research consisting of blinded, randomized controlled trials was performed. Meta-analyses of studies of the efficacy and safety of lipid-lowering therapies, and of the predictive value of established and emerging risk factors were also reviewed. All recommendations are evidence-based, and have been reviewed in detail by primary and secondary review panels. Major changes include a lower low-density lipoprotein cholesterol (LDL-C) treatment target (lower than 2.0 mmol/L) for high-risk patients, a slightly higher intervention point for the initiation of drug therapy in most low-risk individuals (LDL-C of 5.0 mmol/L or a total cholesterol to high-density lipoprotein cholesterol ratio of 6.0) and recommendations regarding additional investigations of potential use in the further evaluation of coronary artery disease risk in subjects in the moderate-risk category.     

中国女性心血管疾病预防专家共识

心血管疾病是当今威胁女性健康和生命的主要疾病,是导致中国女性死亡的首位原因。1999年,美国心脏病协会（AHA）第一次发表的女性心血管病预防建议,提高了美国民众对女性心血管疾病的公众意识,并促进了预防和治疗的进步。2007年,心血管疾病每分钟仍会导致一名美国女性死亡。2011年,AHA对女性心血管病预防指南进行了更新,并将“循证为基础”转化为“效果为基础”的指南,更加关注预防治疗的有效性。     

Lipoprotein abnormalities in South Asians and its association with cardiovascular disease: Current state and future directions

South Asians have a high prevalence of coronary heart disease (CHD) and suffer from early-onset CHD compared to other ethnic groups. Conventional risk factors may not fully explain this increased CHD risk in this population. Indeed, South Asians have a unique lipid profile which may predispose them to premature CHD. Dyslipidemia in this patient population seems to be an important contributor to the high incidence of coronary atherosclerosis. The dyslipidemia in South Asians is characterized by elevated levels of triglycerides, low levels of high-density lipoprotein (HDL) cholesterol, elevated lipoprotein(a) levels, and a higher atherogenic particle burden despite comparable low-density lipoprotein cholesterol levels compared with other ethnic subgroups. HDL particles also appear to be smaller, dysfunctional, and proatherogenic in South Asians. Despite the rapid expansion of the current literature with better understanding of the specific lipid abnormalities in this patient population, studies with adequate sample sizes are needed to assess the significance and contribution of a given lipid parameter on overall cardiovascular risk in this population. Specific management goals and treatment thresholds do not exist for South Asians because of paucity of data. Current treatment recommendations are mostly extrapolated from Western guidelines. Lastly, large, prospective studies with outcomes data are needed to assess cardiovascular benefit associated with various lipid-lowering therapies (including combination therapy) in this patient population.     

Dyslipidemia management in primary prevention of cardiovascular disease:Current guidelines and strategies

Cardiovascular disease is the leading cause of death in the United States. In 2010, the Centers for Disease Control and Prevention estimated that $444 billion was spent on cardiovascular diseases alone, about $1 of every $6 spent on health care. As life expectancy continues to increase, this annual cost will also increase, making costeffective primary prevention of cardiovascular disease highly desirable. Because of its role in development of atherosclerosis and clinical events, dyslipidemia management is a high priority in cardiovascular prevention. Multiple major dyslipidemia guidelines have been published around the world recently, four of them by independent organizations in the United States alone. They share the goal of providing clinical guidance on optimal dyslipidemia management, but guidelines differ in their emphasis on pharmacotherapy, stratification of groups, emphasis on lifestyle modification, and use of a fixed target or percentage reduction in low density lipoprotein cholesterol. This review summarizes eight major guidelines for dyslipidemia management and considers the basis for their recommendations. Our primary aim is to enhance understanding of dyslipidemia management guidelines in patient care for primary prevention of future cardiovascular risk.     

Novel epigenetic-based therapies useful in cardiovascular medicine

Epigenetic modifications include DNA methylation, his-tone modifications, and micro RNA. Gene alterations have been found to be associated with cardiovascular diseases, and epigenetic mechanisms are continuously being studied to find new useful strategies for the clinical management of afflicted patients. Numerous cardiovascular disorders are characterized by the abnormal methylation of Cp G islands and so specific drugs that could inhibit DNA methyltransferase directly or by reducing its gene expression(e.g., hydralazine and procainamide) are currently under investigation. The anti-proliferative and anti-inflammatory properties of histone deacetylase inhibitors and their cardio-protective effects have been confirmed in preclinical studies. Furthermore, the regulation of the expression of micro RNA targets through pharmacological tools is still under development. Indeed, large controlled trials are required to establish whether current possible candidate antisense micro RNAs could offer better therapeutic benefits in clinical practice. Here, we updated therapeutic properties, side effects, and feasibility of eme-rging epigenetic-based strategies in cardiovascular diseases by highlighting specific problematic issues that still affect the development of large scale novel therapeutic protocols.     

Stopping the cardiovascular disease continuum: Focus on prevention

The cardiovascular disease continuum (CVDC) is a sequence of events, which begins from a host of cardiovascular risk factors that consists of diabetes mellitus, dyslipidemia, hypertension, smoking and visceral obesity. If it is not intervened with early, it inexorably progresses to atherosclerosis, coronary artery disease, myocardial infarction, left ventricular hypertrophy, and left ventricular dilatation, which lead to left ventricular diastolic or systolic dysfunction and eventually end-stage heart failure and death. Treatment intervention at any stage during its course will either arrest or delay its progress. In this editorial, the cardiovascular risk factors that initiate and perpetuate the CVDC are briefly discussed, with an emphasis on their early prevention or aggressive treatment.     

New advances in lipid-modifying therapies for reducing cardiovascular risk

Over the last 30 years, several epidemiological and prospective studies have identified a number of risk factors for the development of cardiovascular disease. Lipid abnormalities are central among these risk factors, and their correction has been a major target for the medical community. The 3-hydroxy-3-methyl glutaryl coenzyme A reductase (HMG-CoA reductase) inhibitors (statins) are the most widely prescribed and best tolerated of the currently available lipid-modifying therapies. Newer agents in this class (e.g. rosuvastatin) have been developed that have proven to be more effective at lowering levels of low-density lipoprotein cholesterol (LDL-C). New formulations of drugs such as nicotinic acid can improve treatment regimens and reduce unpleasant side-effects, thereby improving patient compliance with this therapy. In terms of developing novel drugs, the introduction of cholesterol absorption inhibitors (e.g. ezetimibe) and ACAT inhibitors (e.g. avasimibe) will provide clinicians with therapies that exploit different therapeutic pathways to those currently being utilised. Combining these agents with statins could produce greater improvements in lipid profile than those seen to date. In addition, advances in our understanding of the pathophysiology of dyslipidaemia have led to the identification of other novel therapeutic targets, including cholesteryl ester transfer protein. Studies with experimental drugs have already demonstrated the potential of these approaches.     

血脂相关性心血管剩留风险控制中国专家共识

近60年来,对心血管疾病危险因素的综合控制取得了显著成效。然而,经目前标准治疗,低密度脂蛋白胆固醇（LDL—C）、血压、血糖等传统危险因素得到控制后,血脂异常患者仍存在较高的心血管事件的剩留风险。     

Assessing cardiovascular risk in hepatitis C: An unmet need

Chronic hepatitis C virus (HCV) is associated with significant morbidity and mortality, as a result of the progression towards cirrhosis and hepatocellular carcinoma. Additionally, HCV seems to be an independent risk factor for cardiovascular diseases (CVD) due to its association with insulin resistance, diabetes and steatosis. HCV infection represents an initial step in the chronic inflammatory cascade, showing a direct role in altering glucose metabolism. After achieving sustained virological response, the incidence of insulin resistance and diabetes dramatically decrease. HCV core protein plays an essential role in promoting insulin resistance and oxidative stress. On the other hand, atherosclerosis is a common disease in which the artery wall thickens due to accumulation of fatty deposits. The main step in the formation of atherosclerotic plaques is the oxidation of low density lipoprotein particles, together with the increased production of proinflammatory markers [tumor necrosis factor-α, interleukin (IL)-6, IL-18 or C-reactive protein]. The advent of new direct acting antiviral therapy has dramatically increased the sustained virological response rates of hepatitis C infection. In this scenario, the cardiovascular risk has emerged and represents a major concern after the eradication of the virus. Consequently, the number of studies evaluating this association is growing. Data derived from these studies have demonstrated the strong link between HCV infection and the atherogenic process, showing a higher risk of coronary heart disease, carotid atherosclerosis, peripheral artery disease and, ultimately, CVD-related mortality.     

勃起功能障碍与心血管疾病

近来发现 ,勃起功能障碍与心血管疾病关系密切。在发病机制上 ,二者呈鲜明的共因和互为因果关系 ;在治疗上 ,二者之间的相互影响十分显著     

普罗布考在心血管疾病中的应用进展

<正>普罗布考(probucol),化学名为丙丁酚,化学式为4,4'-[(1-甲基亚乙基)二双]2,6-二(1,1-二甲基乙基)苯酚,于20世纪7 0年代首先于美国上市并应用于临床,以往认为其主要作用是降低血清胆固醇。近年来研究发现,普罗布考除具有降脂作用外,还具有抗动脉粥样硬化(atherosclerosis,AS)、抗氧化应激、保护血管内皮、预防对比     

心血管疾病中认知衰弱的研究进展

认知衰弱是无痴呆的患者同时存在衰弱和轻度认知障碍的状态。认知衰弱直接影响心血管疾病患者的健康,增加失能、降低生活质量。现对老年心血管疾病患者认知衰弱的概念、评估、流行病学、预后、机制和干预措施进行综述。     

Serum C-peptide as a key contributor to lipid-related residual cardiovascular risk in the elderly

ObjectivesThe serum levels of C-peptide, an important risk factor for cardiovascular disease (CVD), increase with age. This study aimed to investigate the association between serum C-peptide and increased risk for CVD with altered lipid metabolism in the elderly.MethodsThis was a population-based cross-sectional study that included 3091 elderly participants aged ≥65 years. Serum C-peptide and lipid levels were measured according to standard protocols. Sampling weights were used to estimate the characteristics of study participants. Stratified analysis of covariance was used to evaluate the changes in the serum lipid levels according to quartiles of serum C-peptide levels, and the linear trend was assessed using a linear model. The logistic regression model was carried out to determine the association between the serum C-peptide levels and serum lipid levels.ResultsThe results of the analysis of covariance stratified by sex and serum insulin level showed that the serum triglyceride (TG) and high-density lipoprotein cholesterol (HDL-C) levels were significantly associated with changes in the serum C-peptide levels, independent of the serum insulin level. The logistic regression analyses indicated that the serum C-peptide levels were positively associated with the serum TG levels, and negatively associated with the serum HDL-C levels. A significant dose-response association was obtained in both men and women.ConclusionsSerum C-peptide levels were strongly associated with increased serum TG and reduced HDL-C levels in the elderly. Our results suggest that serum C-peptide increases the risk of CVD via a pathway that increases TG or decreases HDL-C levels.     

Increased cardiovascular events in hypertensive patients with insulin resistance: a 13-year follow-up

Insulin resistance (IR) is commonly associated with other cardiovascular risk factors and is considered an independent risk factor for cardiovascular disease and events. The hyperinsulinemic euglycemic clamp technique is considered the gold standard for evaluating IR, but this technique is cumbersome and not easily applicable in large studies. Therefore, there are no long-term follow-up published studies on the relationship between IR determined by this technique and cardiovascular outcome. Thirteen years ago we performed a hyperinsulinemic euglycemic clamp in 31 hypertensive patients, 16 of whom manifested IR and 15 had normal insulin sensitivity.Thirteen years later we were able to re-evaluate or obtain medical records for all these patients. Over these years, 11 of the 16 insulin resistant patients developed cardiovascular disease and events, including two cardiovascular deaths, two myocardial infarctions, one angina pectoris, one peripheral vascular disease, and five carotid plaques or stenosis. Moreover, two patients developed new onset diabetes, one proteinuria and two impaired kidney function. Among insulin-sensitive patients, one developed peripheral vascular disease, one new onset diabetes and one proteinuria.In conclusion, this is the first longitudinal study of the relationship between insulin resistance, measured by the hyperinsulinemic euglycemic clamp and cardiovascular disease and events in a small cohort of patients with essential hypertension. The data suggest that hypertensive patients with IR are at greater risk of developing cardiovascular disease and events than hypertensive patients with normal insulin sensitivity.     

MicroRNAs in cardiovascular disease

Cardiovascular disease (CVD) remains the predominant cause of human morbidity and mortality in developed countries. Currently, microRNAs have been investigated in many diseases as well-promising biomarkers for diagnosis, prognosis, and disease monitoring. Plenty studies have been designed so as to elucidate the properties of microRNAs in the classification and risk stratification of patients with CVD and also to evaluate their potentials in individualized management and guide treatment decisions. Therefore, in this review article, we aimed to present the most recent data concerning the role of microRNAs as potential novel biomarkers for cardiovascular disease.     

Novel biomarkers for cardiovascular risk prediction

Cardiovascular disease (CVD) is the leading cause of death and disability worldwide. The primary prevention of CVD is dependent upon the ability to identify high-risk individuals long before the development of overt events. This highlights the need for accurate risk stratification. An increasing number of novel biomarkers have been identified to predict cardiovascular events. Biomarkers play a critical role in the definition, prognostication, and decision-making regarding the management of cardiovascular events. This review focuses on a variety of promising biomarkers that provide diagnostic and prognostic information. The myocardial tissue-specific biomarker cardiac troponin, high- sensitivity assays for cardiac troponin, and heart-type fatty acid binding proteinall help diagnose myocardial infarction (MI) in the early hours following symptoms. Inflammatory markers such as growth differentiation factor-15, high-sensitivity C-reactive protein, fibrinogen, and uric acid predict MI and death. Pregnancy-associated plasma protein A, myeloperoxidase, and matrix metalloproteinases predict the risk of acute coronary syndrome. Lipoprotein-associated phospholipase A2 and secretory phospholipase A2 predict incident and recurrent cardiovascular events. Finally, elevated natriuretic peptides, ST2, endothelin-1, mid-regional-pro-adrenomedullin, copeptin, and galectin-3 have all been well vali?dated to predict death and heart failure following a MI and provide risk stratification information for heart failure. Rapidly developing new areas, such as assessment of micro-RNA, are also explored. All the biomarkers reflect different aspects of the development of atherosclerosis.