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"Cardiovascular system"
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Heart
Explains what the heart does, what can go wrong, and how to keep the heart healthy and strong. Includes three-dimensional diagrams.
Book
Exercise benefits in cardiovascular disease: beyond attenuation of traditional risk factors
Despite strong scientific evidence supporting the benefits of regular exercise for the prevention and management of cardiovascular disease (CVD), physical inactivity is highly prevalent worldwide. In addition to merely changing well-known risk factors for systemic CVD, regular exercise can also improve cardiovascular health through non-traditional mechanisms. Understanding the pathways through which exercise influences different physiological systems is important and might yield new therapeutic strategies to target pathophysiological mechanisms in CVD. This Review includes a critical discussion of how regular exercise can have antiatherogenic effects in the vasculature, improve autonomic balance (thereby reducing the risk of malignant arrhythmias), and induce cardioprotection against ischaemia–reperfusion injury, independent of effects on traditional CVD risk factors. This Review also describes how exercise promotes a healthy anti-inflammatory milieu (largely through the release of muscle-derived myokines), stimulates myocardial regeneration, and ameliorates age-related loss of muscle mass and strength, a frequently overlooked non-traditional CVD risk factor. Finally, we discuss how the benefits of exercise might also occur via promotion of a healthy gut microbiota. We argue, therefore, that a holistic view of all body systems is necessary and useful when analysing the role of exercise in cardiovascular health.
Journal Article
The circulatory system
Describes the components of the circulatory system, how the heart functions to pump blood through the human body, and cardiovascular diseases and disorders.
Book
Counter-regulatory renin–angiotensin system in cardiovascular disease
The renin–angiotensin system is an important component of the cardiovascular system. Mounting evidence suggests that the metabolic products of angiotensin I and II — initially thought to be biologically inactive — have key roles in cardiovascular physiology and pathophysiology. This non-canonical axis of the renin–angiotensin system consists of angiotensin 1–7, angiotensin 1–9, angiotensin-converting enzyme 2, the type 2 angiotensin II receptor (AT2R), the proto-oncogene Mas receptor and the Mas-related G protein-coupled receptor member D. Each of these components has been shown to counteract the effects of the classical renin–angiotensin system. This counter-regulatory renin–angiotensin system has a central role in the pathogenesis and development of various cardiovascular diseases and, therefore, represents a potential therapeutic target. In this Review, we provide the latest insights into the complexity and interplay of the components of the non-canonical renin–angiotensin system, and discuss the function and therapeutic potential of targeting this system to treat cardiovascular disease.The non-canonical axis of the renin–angiotensin system (RAS) has an important role in cardiovascular physiology and disease. In this Review, Ocaranza and colleagues discuss the interplay between components of the counter-regulatory RAS and the therapeutic potential of targeting this system to treat cardiovascular disease.
Journal Article
COVID-19 and the cardiovascular system
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infects host cells through ACE2 receptors, leading to coronavirus disease (COVID-19)-related pneumonia, while also causing acute myocardial injury and chronic damage to the cardiovascular system. Therefore, particular attention should be given to cardiovascular protection during treatment for COVID-19.
Journal Article
Neutrophils as regulators of cardiovascular inflammation
Neutrophils have traditionally been viewed as bystanders or biomarkers of cardiovascular disease. However, studies in the past decade have demonstrated the important functions of neutrophils during cardiovascular inflammation and repair. In this Review, we discuss the influence of traditional and novel cardiovascular risk factors on neutrophil production and function. We then appraise the current knowledge of the contribution of neutrophils to the different stages of atherosclerosis, including atherogenesis, plaque destabilization and plaque erosion. In the context of cardiovascular complications of atherosclerosis, we highlight the dichotomous role of neutrophils in pathogenic and repair processes in stroke, heart failure, myocardial infarction and neointima formation. Finally, we emphasize how detailed knowledge of neutrophil functions in cardiovascular homeostasis and disease can be used to generate therapeutic strategies to target neutrophil numbers, functional status and effector mechanisms.In this Review, Soehnlein and colleagues discuss the role of neutrophils in cardiovascular inflammation and repair, describing the effect of cardiovascular risk factors on neutrophil production and function, appraising the contribution of neutrophils to the different stages of atherosclerosis and its clinical manifestations, and highlighting the evolving therapeutic strategies for targeting neutrophil numbers, functional status and effector mechanisms.
Journal Article
Neuropsychology of cardiovascular disease
\"Cardiovascular disease (CVD) is the leading cause of morbidity and mortality in the United States and most westernized nations. Both CVDs and their risk factors confer substantial risk for stroke and dementia, but are also associated with more subtle changes in brain structure and function and cognitive performance prior to such devastating clinical outcomes. It has been suggested that there exists a continuum of brain abnormalities and cognitive difficulties associated with increasingly severe manifestations of cardiovascular risk factors and diseases that precede vascular cognitive impairment and may ultimately culminate in stroke or dementia.This second edition examines the relations of a host of behavioral and biomedical risk factors, in addition to subclinical and clinical CVDs, to brain and cognitive function. Associations with dementia and pre-dementia cognitive performance are reported, described, and discussed with a focus on underlying brain mechanisms. Future research agendas are suggested, and clinical implications are considered. The volume is a resource for professionals and students in neuropsychology, behavioral medicine, neurology, cardiology, cardiovascular and behavioral epidemiology, gerontology, geriatric medicine, nursing, adult developmental psychology, and for other physicians and health care professionals who work with patients with, or at risk for, CVDs\"-- Provided by publisher.
Book
Cytokines as therapeutic targets for cardio- and cerebrovascular diseases
Despite major advances in prevention and treatment, cardiac and cerebral atherothrombotic complications still account for substantial morbidity and mortality worldwide. In this context, inflammation is involved in the chronic process leading atherosclerotic plaque formation and its complications, as well as in the maladaptive response to acute ischemic events. For this reason, modulation of inflammation is nowadays seen as a promising therapeutic strategy to counteract the burden of cardio- and cerebrovascular disease. Being produced and recognized by both inflammatory and vascular cells, the complex network of cytokines holds key functions in the crosstalk of these two systems and orchestrates the progression of atherothrombosis. By binding to membrane receptors, these soluble mediators trigger specific intracellular signaling pathways eventually leading to the activation of transcription factors and a deep modulation of cell function. Both stimulatory and inhibitory cytokines have been described and progressively reported as markers of disease or interesting therapeutic targets in the cardiovascular field. Nevertheless, cytokine inhibition is burdened by harmful side effects that will most likely prevent its chronic use in favor of acute administrations in well-selected subjects at high risk. Here, we summarize the current state of knowledge regarding the modulatory role of cytokines on atherosclerosis, myocardial infarction, and stroke. Then, we discuss evidence from clinical trials specifically targeting cytokines and the potential implication of these advances into daily clinical practice.
Journal Article