Angiotensin II and Arterial Pressure Regulation in Hypertension PDF Download

Author: Corinn Marie Pawloski
Publisher:
ISBN:
Category : Angiotensins
Languages : en
Pages : 384

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Author: Joseph Harding
Publisher: Elsevier
ISBN: 0323159117
Category : Medical
Languages : en
Pages : 251

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Angiotensin and Blood Pressure Regulation examines the role of angiotensin in blood pressure regulation, with emphasis on its ability to influence the inotropic state directly via activation of myocardial receptors and indirectly by potentiating the release of catecholamines from sympathetic nerve terminals. The book also explains how angiotensin acts directly to regulate thirst and sodium appetite, and via antidiuretic hormone to control water reabsorption in the kidney. This book is comprised of eight chapters and begins with a review of the neuronal actions of angiotensin, primarily those in the brain, as well as the location and function of brain angiotensin II receptors. The effects of angiotensin on elements of the vascular wall and myocardium are also discussed, along with its function in hypovolemia, reproduction, and neurotransmission. Subsequent chapters explore some basic and functional considerations of the renin-angiotensin system in the brain; the biochemical processing that is required for angiotensin activation and inactivation; how angiotensin affects peripheral resistance; and the potency of angiotensin III as a pressor and dipsogenic agent in normotensive and hypertensive animal models. This monograph will be a useful resource for pharmacologists and physiologists.

Author: Hiromichi Suzuki (M.D.)
Publisher: Karger Medical and Scientific Publishers
ISBN: 3805577516
Category : Medical
Languages : en
Pages : 181

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Chronic kidney disease is one of the world's major public health problems, and the prevalence of kidney failure is rising steadily. Among the risk factors for a faster progression of renal disease are hypertension and proteinuria, many studies clearly demonstrating that hypertension is both a cause and consequence of chronic kidney disease. Namely, renal blood pressure regulation seems to be involved in five major pathophysiological mechanisms (all closely related to the renin-angiotensin system): Pressure-natriuresis, renal sympathetic nervous system, renal blood flow, intraglomerular pressure and tubuloglomerular feedback. This book reviews experimental data which form the basis of our current understanding of the association between hypertension and kidney diseases: The pathogenesis of increased blood pressure, the mechanisms by which systemic hypertension promotes progressive kidney failure, and the impact of antihypertensive agents on experimental renal mechanisms involved in hypertension. Furthermore, the role of angiotensin II receptor blockers in both the control of systemic blood pressure and the reduction of proteinuria is examined in an attempt to define optimal therapeutic strategies to prevent the otherwise inexorable deterioration of renal function in patients with chronic kidney disease.

Author: National Heart, Lung, and Blood Institute. Hypertension Task Force
Publisher:
ISBN:
Category :
Languages : en
Pages : 198

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Author: J. H. Laragh
Publisher: Springer Science & Business Media
ISBN: 1461258995
Category : Medical
Languages : en
Pages : 634

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reached full definition in the 1940s by Kempner diet. The important role of adrenal aldosterone and associates in demonstrating the beneficial ef secretion in supporting human hypertension is now fects of a low salt rice diet for treating hypertensive well recognized as are the beneficial effects of patients. It became apparent that the value of rice blockade, especially in low-renin patients who ex was wholly related to its sodium content. A rice hibit inappropriate or absolute excesses of aldoste diet, or any other stringent low sodium diet, rone secretion. Further definition of the more sub greatly improves or completely corrects the hyper tle participation of aldosterone and of the factors tension of about ~ or so of all patients with essen that control aldosterone secretion in hypertensive subjects are promising areas for further research. tial hypertension. However, what is often forgotten is that little or no benefit accrues to the remaining THE NERVOUS SYSTEM majority of patients. Parallel studies of animal models has demon Besides the endocrine and excretory functions of strated the amplifying effect of a high sodium diet the kidney and the influence of dietary sodium on blood pressure and vice versa. Strains of rats and of aldosterone secretion, there has been long were developed which are especially sensitive to standing agreement about the important role of the pressor effects of a high sodium diet. In a way, the nervous system in blood pressure control.

Author: T.G. Coleman
Publisher: Springer Science & Business Media
ISBN: 9401513287
Category : Medical
Languages : en
Pages : 264

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The way in which blood pressure is controlled is not well understood. I offer as evidence the spirited debates among scientists that have occurred in the past and that will probably continue for some time to come. Consider also that hypertension is a disease of significant morbidity and mortality, yet in the majority of instances the cause of the pressure elevation is unknown. And further, the wide variety of antihypertensive drugs currently used, often without a full understanding of the mechanisms involved, suggests that we often know as little about what decreases blood pressure with antihypertensive therapy as we know about what increases pressure in the first place. This ignorance has fostered and probably justified extensive inquiries into outstanding problems of blood pressure control. The pace has quickened in the last one or two decades, and published reports germaine to the subject appear to be accumulating at an exponential rate. Hence, speaking for myself, the reviewer is faced with too little understanding and too much information.

Author: National Heart, Lung, and Blood Institute. Hypertension Task Force
Publisher:
ISBN:
Category : Hypertension
Languages : en
Pages : 200

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Author: Naranjan S. Dhalla
Publisher: Springer Science & Business Media
ISBN: 1461557437
Category : Medical
Languages : en
Pages : 607

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The relationship between angiotensin II and hypertension was established in 1898 when angiotensin II was shown to modulate systemic blood pressure. Over the intervening decades, a complete characterization of the renin-angiotensin system (RAS) has been achieved, and our understanding of its biochemistry and physiology has led to the directed development of agents such ·as ACE inhibitors and receptor antagonists capable of controlling hypertension. More recently, it was shown that angiotensin II is secreted within certain tissues and that these tissue-specific systems operate independently of the systemic RAS. The novel concept that angiotensin II regulates a number of cardiovascular processes that are unrelated to blood pressure has renewed the interest of both basic and clinical scientists in angiotensin II. The association between angiotensin II and cardiac growth, in particular, has indicated that therapies currently in use for hypertension may have direct application to the treatment of heart failure. The Manitoba Cardiovascular Forum on Angiotensin Receptor Blockade in Winnipeg was convened October 18-20, 1996 to examine the clinical and basic aspects of angiotensin receptor biology as they apply to hypertension and heart failure. In addition, the potential treatment of these conditions using specific angio tensin receptor antagonists was addressed within the context of their immediate therapeutic application and future potential.

Author: Michael Fernandes
Publisher:
ISBN:
Category : Medical
Languages : en
Pages : 520

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Author:
Publisher:
ISBN:
Category : Blood pressure
Languages : en
Pages : 52

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