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Author: Stanislas U. Sys
Publisher:
ISBN:
Category : Medical
Languages : en
Pages : 154
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Book Description
Places the discovery of the key role of cardiac endothelial cells in the control and modulation of heart performance in historical perspective, emphasizing the contributions of numerous investigators since 1986. Summarizes the major morphological, embryological, and comparative physiological features of the cells, and details the two main hypotheses for understanding the underlying mechanisms of the interaction between cardiac endothelial cells and cardiomyocytes. Includes bandw photos. Annotation copyright by Book News, Inc., Portland, OR
Author: Stanislas U. Sys
Publisher:
ISBN:
Category : Medical
Languages : en
Pages : 154
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Book Description
Places the discovery of the key role of cardiac endothelial cells in the control and modulation of heart performance in historical perspective, emphasizing the contributions of numerous investigators since 1986. Summarizes the major morphological, embryological, and comparative physiological features of the cells, and details the two main hypotheses for understanding the underlying mechanisms of the interaction between cardiac endothelial cells and cardiomyocytes. Includes bandw photos. Annotation copyright by Book News, Inc., Portland, OR
Author: Michel Félétou
Publisher: Morgan & Claypool Publishers
ISBN: 1615041230
Category : Science
Languages : en
Pages : 309
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Book Description
The endothelium, a monolayer of endothelial cells, constitutes the inner cellular lining of the blood vessels (arteries, veins and capillaries) and the lymphatic system, and therefore is in direct contact with the blood/lymph and the circulating cells. The endothelium is a major player in the control of blood fluidity, platelet aggregation and vascular tone, a major actor in the regulation of immunology, inflammation and angiogenesis, and an important metabolizing and an endocrine organ. Endothelial cells controls vascular tone, and thereby blood flow, by synthesizing and releasing relaxing and contracting factors such as nitric oxide, metabolites of arachidonic acid via the cyclooxygenases, lipoxygenases and cytochrome P450 pathways, various peptides (endothelin, urotensin, CNP, adrenomedullin, etc.), adenosine, purines, reactive oxygen species and so on. Additionally, endothelial ectoenzymes are required steps in the generation of vasoactive hormones such as angiotensin II. An endothelial dysfunction linked to an imbalance in the synthesis and/or the release of these various endothelial factors may explain the initiation of cardiovascular pathologies (from hypertension to atherosclerosis) or their development and perpetuation. Table of Contents: Introduction / Multiple Functions of the Endothelial Cells / Calcium Signaling in Vascular Cells and Cell-to-Cell Communications / Endothelium-Dependent Regulation of Vascular Tone / Conclusion / References
Author: Stanislas U. Sys
Publisher: R G Landes Company
ISBN: 9781570592362
Category : Endocardium
Languages : en
Pages : 130
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Book Description
Author: Malcolm J Lewis
Publisher: CRC Press
ISBN: 1000717526
Category : Medical
Languages : en
Pages : 269
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Book Description
Paracrine and autocrine regulation of cardiac function by "endothelial" mediators is becoming important both physiologically and pathophysiologically. This volume brings the researcher completely up to date with all aspects of endothelial regulation and cardiac function. Acknowledged experts in each field have contributed, making this work indispensable for researchers and of great interest to the clinical cardiologist. The Endothelial Cell Research Series publishes significant reviews by experts in the field. The individual volumes provide invaluable guides to researchers studying endothelial cells and are effective reference texts for anyone working in the general areas of vascular biology and neurotransmission. Endothelium was originally considered to be an inert lining for the blood vessels, but during the last fifteen years, this view has had to be completely revised. It is now accepted that the endothelium plays an important role in many diverse functions. This volume concentrates on the effect of the endothelium on cardiac function. It has been widely demonstrated that the endothelium exerts a paracrine influence on contraction of adjacent cardiac muscle through the release of several mediators, such as endothelin and nitric oxide. Recent studies also show that the effects of such mediators upon the heart are not limited to contraction alone.
Author: H. G. Evans
Publisher:
ISBN:
Category : Heart
Languages : en
Pages : 168
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Book Description
Author: Luc Andries
Publisher: R G Landes Company
ISBN: 9781570590726
Category : Medical
Languages : en
Pages : 143
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Book Description
Devoted to the functional morphology of endocardial endothelium (EE), this text reviews the embryological development and comparative morphology of the EE and discusses EE cell structure. To investigate the structure of EE the authors took advantage of the en face optical sectioning capacity of the confocal scanning laser microscope, which enabled them to elucidate EE cell shape, the organization of its cytoskeleton and differences compared to vascular endothelium. Permeability properties, distribution of gap junctions, von Willebrand factors, and structure of the Golgi complex are also discussed.
Author: Michel Félétou
Publisher: Biota Publishing
ISBN: 1615041249
Category : Science
Languages : en
Pages : 308
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Book Description
The endothelium, a monolayer of endothelial cells, constitutes the inner cellular lining of the blood vessels (arteries, veins and capillaries) and the lymphatic system, and therefore is in direct contact with the blood/lymph and the circulating cells. The endothelium is a major player in the control of blood fluidity, platelet aggregation and vascular tone, a major actor in the regulation of immunology, inflammation and angiogenesis, and an important metabolizing and an endocrine organ. Endothelial cells controls vascular tone, and thereby blood flow, by synthesizing and releasing relaxing and contracting factors such as nitric oxide, metabolites of arachidonic acid via the cyclooxygenases, lipoxygenases and cytochrome P450 pathways, various peptides (endothelin, urotensin, CNP, adrenomedullin, etc.), adenosine, purines, reactive oxygen species and so on. Additionally, endothelial ectoenzymes are required steps in the generation of vasoactive hormones such as angiotensin II. An endothelial dysfunction linked to an imbalance in the synthesis and/or the release of these various endothelial factors may explain the initiation of cardiovascular pathologies (from hypertension to atherosclerosis) or their development and perpetuation. Table of Contents: Introduction / Multiple Functions of the Endothelial Cells / Calcium Signaling in Vascular Cells and Cell-to-Cell Communications / Endothelium-Dependent Regulation of Vascular Tone / Conclusion / References
Author: M. Simionescu
Publisher: Springer Science & Business Media
ISBN: 1489907211
Category : Medical
Languages : en
Pages : 562
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Book Description
Noted experts survey and evaluate the latest research in the growing field of endothelial cell involvement in the initiation and development of various diseases. Research-oriented chapters span a diversity of topics, including endothelial cell response to various injuries and its crucial role in inflammation, immunity, viral infection, hypertension, hyperlipidemia, atherosclerosis, diabetes mellitus, neoplasia, and metastasis.
Author: Michel F. L. Tou
Publisher: Morgan & Claypool Publishers
ISBN: 1615043373
Category : Science
Languages : en
Pages : 211
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Book Description
The endothelium controls vascular tone by releasing various vasoactive substances. Additionally, another pathway associated with the hyperpolarization of both endothelial and vascular smooth muscle cells contributes also to endothelium-dependent relaxations (EDHF-mediated responses). These responses involve an increase in the intracellular Ca concentration of the endothelial cells followed by the opening of Ca-activated K channels of small and intermediate conductances (SKCa and IKCa). These channels show a distinct subcellular distribution, suggesting that their activation could be elicited by distinct stimuli. Following KCa activation, the endothelial hyperpolarization can be conducted to the underlying smooth muscle cells by electrical coupling through myo-endothelial gap junctions. In addition, the potassium efflux can lead to the accumulation of potassium ions in the intercellular space and the subsequent activation of smooth muscle Kir2.1 and/or Na/K-ATPase. The hyperpolarization of the smooth muscle cells produces vascular relaxation, predominantly by closing voltage-gated calcium channels, and vasodilatation. EDHFmediated responses are altered in various pathologies or, conversely, act as a compensating mechanism when other endothelial pathways are impaired. A better characterization of EDHF-mediated responses should allow determining whether or not new drugable targets can be identified within this endothelial pathway for the treatment of cardiovascular diseases. Table of Contents: Endothelium-Dependent Hyperpolarizations: The Classical "EDHF" Pathway / Conclusion / References
Author: Michel Félétou
Publisher: Biota Publishing
ISBN: 1615043365
Category : Science
Languages : en
Pages : 208
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Book Description
The endothelium controls vascular tone by releasing various vasoactive substances. Additionally, another pathway associated with the hyperpolarization of both endothelial and vascular smooth muscle cells contributes also to endothelium-dependent relaxations (EDHF-mediated responses). These responses involve an increase in the intracellular Ca concentration of the endothelial cells followed by the opening of Ca-activated K channels of small and intermediate conductances (SKCa and IKCa). These channels show a distinct subcellular distribution, suggesting that their activation could be elicited by distinct stimuli. Following KCa activation, the endothelial hyperpolarization can be conducted to the underlying smooth muscle cells by electrical coupling through myo-endothelial gap junctions. In addition, the potassium efflux can lead to the accumulation of potassium ions in the intercellular space and the subsequent activation of smooth muscle Kir2.1 and/or Na/K-ATPase. The hyperpolarization of the smooth muscle cells produces vascular relaxation, predominantly by closing voltage-gated calcium channels, and vasodilatation. EDHFmediated responses are altered in various pathologies or, conversely, act as a compensating mechanism when other endothelial pathways are impaired. A better characterization of EDHF-mediated responses should allow determining whether or not new drugable targets can be identified within this endothelial pathway for the treatment of cardiovascular diseases. Table of Contents: Endothelium-Dependent Hyperpolarizations: The Classical "EDHF" Pathway / Conclusion / References
