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Article
Sparstolonin B Attenuates Hypoxia-Induced Apoptosis, Necrosis and Inflammation in Cultured Rat Left Ventricular Tissue Slices
Ischemia/reperfusion results in tissue damage, a rapid increase in cytokines and chemokines and inflammatory cell infiltration. Herein we investigated the ability of a selective TLR2/4 antagonist, Sparstolonin...
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Chapter
Cardiac Mast Cells as Mediators of Ventricular Remodeling
Mast cells are known to store and release a variety of biologically active mediators including TNF-α, and proteases such as tryptase and chymase. With cardiac chamber distension there is a release of atrial natri...
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Article
Expression of matrix metalloproteinase activity in idiopathic dilated cardiomyopathy: A marker of cardiac dilatation
Background: Idiopathic dilated cardiomyopathy (DCM), ventricular systolic dysfunction and chamber dilatation are accompanied by architectural remodeling, wall thinning and cardiac myocyte slippage. Recent work h...
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Article
The Dynamic Interaction Between Matrix Metalloproteinase Activity and Adverse Myocardial Remodeling
The process of cardiac remodeling in response to cardiac injury and/or persistent elevations in wall stress generally relates to the progressive changes that occur in ventricular chamber dimensions and the var...
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Article
Gender mediated cardiac protection from adverse ventricular remodeling is abolished by ovariectomy
Gender differences in the prevalence of cardiovascular disease have been observed both clinically and experimentally. These cardioprotective effects have frequently been attributed to female hormones, however,...
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Chapter
Characteristics and Mechanisms of Angiotensin II-Related Myocardial Damage
Chronic, pathophysiological elevations of angiotensin (Ang) II cause myocyte necrosis and coronary vascular damage. These adverse effects are mediated by the angiotensin II type 1 (AT1) receptor and are, therefor...
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Chapter
Introduction
To meet the metabolic requirements of the body over a wide range of physical activity, the heart must be capable of increasing its cardiac output seven-to eightfold. This is accomplished by acute increases in ...
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Chapter
Myocardial Interstitial Collagen Matrix Remodeling in Response to a Chronic Elevation in Ventricular Preload or Afterload
Fibrillar collagen is an essential component of the extracellular matrix of the heart that surrounds and interconnects the coronary microcirculation, individual myocytes, groups of cardiac myofibrils, muscle f...
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Progressive Ventricular Dilatation in Heart Failure: The Role of Myocardial Collagenase
Fibrillar collagen is an integral component of the extracellular matrix of the heart, linking the numerous myocardial components and ensuring an efficient functioning organ. Specifically it provides for muscle...
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Chapter
Structural and Functional Consequences of Myocardial Collagen Remodeling
Myocardial fibrillar collagens provide for muscle fiber and cardiac myocyte alignment and impart a tensile strength to the myocardium that maintains ventricular shape and size, and governs tissue stiffness. Th...
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Chapter
Myocardial Fibrosis: Structural Basis for Diastolic Dysfunction
Left ventricular hypertrophy (LVH) is the single most important prognostic factor associated with adverse cardiovascular events, including heart failure and sudden death, attributable to cardiovascular disease...
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Chapter
Left Ventricular Systolic Resistance and Its Role in Coupling the Ventricle to the Arterial Circulation
The overall performance of the left ventricle coupled to the arterial circulation is dependent on the intrinsic mechanical properties of the individual subsystems and their mutual interaction. The myocardium o...
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Chapter
Influence of Extracardiac Forces on the Cardiopulmonary Unit
The cardiopulmonary unit consists of the heart and lungs. It is responsible for the transport and exchange of oxygen and carbon dioxide between the metabolizing tissues and the atmosphere (Weber et al. 1983). ...
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Chapter
Left ventricular performance and its systolic mechanical properties
The myocardium is a viscoelastic material whose mechanical properties are reflected in the pum** behavior of the ventricular chamber. Hence, the relationships between left ventricular (LV) pressure, volume, ...