The Protective Arm of the Renin Angiotensin System (RAS)

The Protective Arm of the Renin Angiotensin System (RAS) PDF Author: Thomas Unger
Publisher: Academic Press
ISBN: 0128014857
Category : Medical
Languages : en
Pages : 312

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Book Description
The Protective Arm of the Renin Angiotensin System: Functional Aspects and Therapeutic Implications is the first comprehensive publication to signal the protective role of a distinct part of the renin–angiotensin system (RAS), providing readers with early insight into a complex system which will become of major medical importance in the near future. Focusing on recent research, The Protective Arm of the Renin Angiotensin System presents a host of new experimental studies on specific components of the RAS, namely angiotensin AT2 receptors (AT2R), the angiotensin (1–7) peptide with its receptor Mas, and the enzyme ACE 2, which exert significant beneficial, health-promoting actions by counterbalancing the well-known harmful arm of the RAS with its classical angiotensin AT1 receptor. This innovative concept of the protective arm of the RAS, examined in this reference, represents an indispensable background and will be a strong support for biomedical students, researchers, cardiologists, surgeons, nephrologists, diabetologists, and endocrinologists, as well as any other physician or researcher concerned with RAS physiology, pathophysiology and clinical implications. Provides a complete understanding of the protective side of the Renin Angiotensin System (RAS) involving angiotensin AT2 receptor, ACE2, and Ang(1-7)/Mas receptor Combines the knowledge of editors who pioneered research on the protective renin angiotensin system including; Dr. Thomas Unger, one of the founders of AT2 receptor research; Dr. Ulrike M. Steckelings, who contributed significantly to first preclinical studies with a novel specific AT2-agonist, and Dr. Robson Santos who pioneered research on angiotensin-(1-7) and its receptor Mas. Shows that the protective RAS axes are able to ameliorate the course of several cardiovascular, renal, metabolic and neurological diseases Provides the basis for the understanding of a novel therapeutic approach to stimulate components of the protective arm of the RAS.

The Protective Arm of the Renin Angiotensin System (RAS)

The Protective Arm of the Renin Angiotensin System (RAS) PDF Author: Thomas Unger
Publisher: Academic Press
ISBN: 0128014857
Category : Medical
Languages : en
Pages : 312

Get Book Here

Book Description
The Protective Arm of the Renin Angiotensin System: Functional Aspects and Therapeutic Implications is the first comprehensive publication to signal the protective role of a distinct part of the renin–angiotensin system (RAS), providing readers with early insight into a complex system which will become of major medical importance in the near future. Focusing on recent research, The Protective Arm of the Renin Angiotensin System presents a host of new experimental studies on specific components of the RAS, namely angiotensin AT2 receptors (AT2R), the angiotensin (1–7) peptide with its receptor Mas, and the enzyme ACE 2, which exert significant beneficial, health-promoting actions by counterbalancing the well-known harmful arm of the RAS with its classical angiotensin AT1 receptor. This innovative concept of the protective arm of the RAS, examined in this reference, represents an indispensable background and will be a strong support for biomedical students, researchers, cardiologists, surgeons, nephrologists, diabetologists, and endocrinologists, as well as any other physician or researcher concerned with RAS physiology, pathophysiology and clinical implications. Provides a complete understanding of the protective side of the Renin Angiotensin System (RAS) involving angiotensin AT2 receptor, ACE2, and Ang(1-7)/Mas receptor Combines the knowledge of editors who pioneered research on the protective renin angiotensin system including; Dr. Thomas Unger, one of the founders of AT2 receptor research; Dr. Ulrike M. Steckelings, who contributed significantly to first preclinical studies with a novel specific AT2-agonist, and Dr. Robson Santos who pioneered research on angiotensin-(1-7) and its receptor Mas. Shows that the protective RAS axes are able to ameliorate the course of several cardiovascular, renal, metabolic and neurological diseases Provides the basis for the understanding of a novel therapeutic approach to stimulate components of the protective arm of the RAS.

Loss of the Protective Arm of Renin-angiotensin-system Results in Hematopoietic Stem

Loss of the Protective Arm of Renin-angiotensin-system Results in Hematopoietic Stem PDF Author: Yaqian Duan
Publisher:
ISBN:
Category :
Languages : en
Pages : 352

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Book Description
Angiotensin-converting enzyme 2 (ACE2) is the primary enzyme of the vasoprotective axis of the renin-angiotensin system (RAS). We tested the hypothesis that the protective arm of the RAS axis can i) act to maintain homeostasis in the diabetic bone marrow stem cell compartment, ii) regulate the reparative function of the hematopoietic stem/progenitor cells (HSPCs) and iii) modulate the gut microbiota composition. All processes could influence the development of diabetic retinopathy. Diabetic ACE2 knockout (KO)/C57BL/6-Ins2WT/C96Y (Akita) mice were examined at 3 and 9 months after the onset of diabetes and compared to age-matched controls. Both ACE2KO-Akita and Akita cohorts showed reduced retinal thickness by optical coherence tomography at 9 months of diabetes. The absence of ACE2 in 9-month diabetic mice led to an accelerated increase in acellular capillaries, a hallmark feature of diabetic retinopathy. The absence of ACE2 also caused a reduction of both long-term and short-term repopulating HSPCs in the diabetic bone marrow at 9 months of diabetes. Reparative function studies showed that ACE2KO exacerbated diabetes-induced impairment of lineage-c-kit+ HSPC migration and proliferation as early as 3-month of diabetes. HSPCs from both early and late stage diabetic mice, pretreated with Ang-(1-7) or alamandine (two downstream peptides of ACE2) showed restored migration and proliferation. The gut microbiota has been implicated in the pathogenesis of diabetes. Analysis of the gut microbiome also revealed a distinct bacterial profile in ACE2KO-Akita group, with a great diversity of bacterial types that were previously reported to contribute to diabetic pathogenesis, including Tenericutes at the phylum level and Mollicutes at the class level, and with an activation of peptidoglycan biosynthesis pathways. Flow cytometry analysis showed that loss of ACE2 led to less infiltration of circulating angiogenic cells in the gut which may lead to an increased endothelial cell permeability in the intestinal endothelium. This leakage into the blood may promote systemic inflammation known to contribute to the pathogenesis of diabetic retinopathy. These data suggested a loss of the protective arm of RAS contributes to the impairment of HSPCs and alteration of gut microbiota, both of which may contribute to the development of diabetic retinopathy.

Angiotensin-(1-7)

Angiotensin-(1-7) PDF Author: Robson Augusto Souza Santos
Publisher: Springer Nature
ISBN: 3030226964
Category : Medical
Languages : en
Pages : 240

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Book Description
This is the first book addressing in full the most important aspects of the angiotensin-(1-7), the key peptide of the protective axis and the main component in the new modulatory concept of the renin-angiotensin system. It features a detailed review of angiotensin-(1-7) and its receptor Mas, comprising the historical background, enzymatic pathways for generation, functions, integrative aspects of its protective profile, and its therapeutic potential. It also encompasses a comprehensive presentation of current knowledge about its widespread biological actions on several tissues, as well as the most recent scientific achievements, emerging from preclinical and clinical trials. Dr. Santos is a renowned researcher on the Renin-Angiontensin system, with remarkable achievements regarding the role of peptides such as alamandine and angiontensin-(1-7). He has also worked on the potential clinical applicability of angiotensin-(1-7)-related drugs for cardiovascular diseases. He has an extensive publication record in the field, including the publication of the book The Protective Arm of the Renin Angiotensin System (Academic Press, 2015). Angiotensin-(1-7) will make a unique contribution to the literature and will be an important resource for biomedical students and researchers, medical practitioners and any other professional interested in this peptide and its role in the renin-angiotensin system.

The Local Cardiac Renin-Angiotensin Aldosterone System

The Local Cardiac Renin-Angiotensin Aldosterone System PDF Author: Edward D. Frohlich
Publisher: Springer Science & Business Media
ISBN: 1441905286
Category : Medical
Languages : en
Pages : 187

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Book Description
Until recently, the renin-angiotensin-aldosterone system has been considered a systemic endocrine hormonal system exclusively. It is now known that each component of the renin-angiotensin system is produced, synthesized and indeed, present in many organisms including the heart and vessels. This volume presents the most recent clinical and laboratory experiences of the leading physicians and investigators in the field of the local cardiac renin-angiotensin aldosterone system. Cardiovascular, renal and hypertension oriented physicians, investigators and scientists would find this book of interest. Edward D. Frohlich, M.D., M.A.C.P, F.A.C.C., is the Alton Ochsner Distinguished Scientist at the Ochsner Clinic Foundation in New Orleans, Louisiana. He is also Professor of Medicine and of Physiology at Louisiana State University School of Medicine, New Orleans, and Clinical Professor of Medicine and Adjunct Professor of Pharmacology at Tulane University School of Medicine, New Orleans. He is past Editor-in-Chief of the American Heart Association journal HYPERTENSION. Richard N. Re, M.D., is the Section Head, Hypertension at the Ochsner Clinic Foundation in New Orleans, Louisiana. He is also Ochsner's Scientific Director of Research.

The Renin Angiotensin System in Cardiovascular Disease

The Renin Angiotensin System in Cardiovascular Disease PDF Author: Naranjan S. Dhalla
Publisher: Springer Nature
ISBN: 3031149521
Category : Medical
Languages : en
Pages : 453

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Book Description
This book on “Renin-Angiotensin System in Cardiovascular Disease” includes 25 chapters, which are organized in three sections, namely (i) modulatory aspects, (ii) pathophysiological aspects, and (iii) pharmacotherapeutic aspects. It includes an updated as well as comprehensive knowledge about molecular and cellular aspects for the role of the renin-angiotensin system (RAS) in the pathophysiology and therapy of cardiovascular diseases such as hypertension, atherosclerosis, ischemic heart disease, and heart failure. This book emphasizes the molecular and cellular mechanisms, signaling transduction pathways involved in the development of different cardiovascular diseases due to the prolonged activation of RAS. Furthermore, biochemical mechanisms are outlined for the inhibition of this system by the blockade of angiotensin converting enzyme as well as angiotensin II type 1 receptors in patients suffering from cardiovascular abnormalities. Since cardiovascular disease is the number one cause of death worldwide, leading to approximately 17.9 million deaths each year, there is a keen interest in understanding the pathogenesis and improving its therapy. In this regard, we can attest that this book provides ample information about essential components of RAS and their role in the development of cardiovascular disease. From the selection of recognized global experts in their area of investigation, this book can be seen to cover diverse cardiovascular aspects and molecular and cellular mechanisms of angiotensin II action for the development of different cardiovascular abnormalities. It is our contention that this book will be most suitable for promoting knowledge in the field of RAS biology and will be of great interest to health professionals involved in both experimental and clinical cardiology as well as academic investigators and cardiovascular scientists, graduate students, and fellows worldwide.

Aldosterone-Mineralocorticoid Receptor

Aldosterone-Mineralocorticoid Receptor PDF Author: Brian Harvey
Publisher: BoD – Books on Demand
ISBN: 1839621982
Category : Medical
Languages : en
Pages : 302

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Book Description
This book is an open access dissemination of the EU COST Action ADMIRE in Aldosterone/Mineralocorticoid Receptor (MR) physiology and pathophysiology. Aldosterone is the major hormone regulating blood pressure. Alterations in blood levels of aldosterone and genetic mutations in the MR receptor are major causes of hypertension and comorbidities. Many of the drugs in clinical use, and in development for treating hypertension, target aldosterone and MR actions in the kidney and cardiovascular system. The ADMIRE book assembles review chapters from 16 European ADMIRE laboratories providing the latest insights into mechanisms of aldosterone synthesis/secretion, aldosterone/MR physiology and signaling, and the pathophysiological roles of aldosterone/MR activation.

The Role of the Renin-Angiotensin System in the Central Nervous System

The Role of the Renin-Angiotensin System in the Central Nervous System PDF Author: Natalia P. Rocha
Publisher: Frontiers Media SA
ISBN: 2889713458
Category : Science
Languages : en
Pages : 120

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Book Description


Manual of Hypertension of the European Society of Hypertension, Third Edition

Manual of Hypertension of the European Society of Hypertension, Third Edition PDF Author: Giuseppe Mancia
Publisher: CRC Press
ISBN: 0429581440
Category : Health & Fitness
Languages : en
Pages : 1377

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Book Description
The Manual of Hypertension of the European Society of Hypertension reflects emerging concepts that have the potential to impact diagnostic and therapeutic approaches to hypertension. Updating all material, this new edition also delves into a number of areas that have received heightened interest in recent years or have become a matter of debate due to the controversial interpretation of the available data. FEATURES Reflects emerging concepts impacting diagnostic and therapeutic approaches Explores background, history, epidemiology, and risk factors Describes pharmacological, nonpharmacological, and medical treatments Examines hypertension in special populations and treatment

The Perioperative Neurocognitive Disorders

The Perioperative Neurocognitive Disorders PDF Author: Roderic G. Eckenhoff
Publisher: Cambridge University Press
ISBN: 1107559200
Category : Medical
Languages : en
Pages : 219

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Book Description
A practical guide to perioperative cognitive disorders, the most common complications of anesthesia and surgery in older people.

Prehypertension and Cardiometabolic Syndrome

Prehypertension and Cardiometabolic Syndrome PDF Author: Reuven Zimlichman
Publisher: Springer
ISBN: 331975310X
Category : Medical
Languages : en
Pages : 689

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Book Description
This book sheds new light on the management of patients with borderline cardiovascular risk factors in order to prevent their progression to end organ damage. The book stimulates discussion of this poorly understood condition and lays the groundwork for developing recommendations and guidelines. While the diagnostic and therapeutic approach to full-blown diabetes, hypertension, dyslipidemia and obesity is well defined, there is still a lack of clear understanding and guidelines as far as patients with borderline conditions – especially when multiple – are concerned. Moreover, end-organ damage depends on several factors, including genetic factors, making it difficult to predict its extent. As such, the gradual transition from a healthy subject to one with functional hemodynamic changes, and then one with structurally asymptomatic changes and lastly to overt disease needs further investigation. In order to address these knowledge gaps, the book covers a broad variety of topics, making it a valuable tool for identifying which asymptomatic subjects could profit from being appropriately screened and at what stage. Furthermore it offers insights into better treating these patients to prevent their progression to overt disease. The book appeals to cardiologists, primary care physicians and all those healthcare professional looking to optimize the management of these complex and often undiagnosed cases.