نتایج جستجو برای: aldosterone

تعداد نتایج: 11259  

Journal: :Clinical chemistry 2013
Jacob A Udell David A Morrow Eugene Braunwald Karl Swedberg Christoph Bode Nader Rifai Patrick C Brunel Margaret F Prescott Fang Ren Elaine B Hoffman Benjamin M Scirica

BACKGROUND Acute coronary syndrome (ACS) activates neurohormonal pathways, including elevations in circulating aldosterone, with deleterious cardiovascular effects. We aimed to determine if early, more complete renin-angiotensin-aldosterone system inhibition (RAASI) in post-ACS patients without ventricular dysfunction or heart failure would result in a graded reduction in aldosterone concentrat...

Journal: :The Journal of clinical investigation 1976
Q Al-Awqati L H Norby A Mueller P R Steinmetz

Aldosterone stimulates not only Na+ absorption but also urinary acidification. In this investigation the effects of aldosterone on H+ transport are examined in vitro in turtle bladder, a urinary membrane in which several of the factors controlling H+ transport have been defined. H+ transport was increased in bladder halves exposed to aldosterone compared to control halves. Stimulation of H+ se...

2017
Bertille Elodie Edinga-Melenge Vicky J Ama Moor Jobert Richie N Nansseu Romance Nguetse Djoumessi Michel K Mengnjo Jean-Claude Katte Jean Jacques N Noubiap Eugene Sobngwi

BACKGROUND The renin-angiotensin-aldosterone system may be altered in patients with resistant hypertension. This study aimed to evaluate the relation between renin-angiotensin-aldosterone system activity and resistant hypertension in Cameroonian diabetes patients with resistant hypertension. METHODS We carried out a case-control study including 19 diabetes patients with resistant hypertension...

Journal: :Life and science 2023

Pseudohypoaldosteronism (PHA) type 1 is a heterogeneous group of disorder electrolyte metabolism characterized by apparent renal tubular unresponsiveness to aldosterone action. PHA-1 manifested hyponatremia, hyperkalemia, metabolic acidosis and may present as salt wasting crisis with elevated levels renin aldosterone. subdivided into two types varying degree severity. The earliest sign both poo...

Journal: :Circulation 2003
Nancy J Brown

Data from animal studies and clinical trials indicate that aldosterone causes cardiovascular and renal injury through mineralocorticoid receptor-dependent mechanisms. However, although aldosterone receptor antagonism reduces mortality in patients with congestive heart failure, the progestational and antiandrogenic side effects of the nonspecific aldosterone receptor antagonist, spironolactone, ...

Journal: :American journal of physiology. Renal physiology 2007
Sophie de Seigneux Jakob Nielsen Emma T B Olesen Henrik Dimke Tae-Hwan Kwon Jørgen Frøkiaer Søren Nielsen

The purpose of the present studies was to determine the effects of high-dose aldosterone and dDAVP treatment on renal aquaporin-2 (AQP2) regulation and urinary concentration. Rats were treated for 6 days with either vehicle (CON; n = 8), dDAVP (0.5 ng/h, dDAVP, n = 10), aldosterone (Aldo, 150 microg/day, n = 10) or combined dDAVP and aldosterone treatment (dDAVP+Aldo, n = 10) and had free acces...

Journal: :Hypertension 2004
Hans Oberleithner Thomas Ludwig Christoph Riethmüller Uta Hillebrand Lars Albermann Claudia Schäfer Victor Shahin Hermann Schillers

Aldosterone has long been known to control water and electrolyte balance by acting on mineralocorticoid receptors in kidney. However, recent studies demonstrated the presence of these receptors in nonclassical locations, including the cardiovascular system. We tested the hypothesis whether endothelial cells respond to aldosterone with changes in cell volume, a measure for ion-mediated water mov...

2004
Qing Wang Sophie Clement Giulio Gabbiani Jean-Daniel Horisberger Michel Burnier Bernard C. Rossier Edith Hummler

Primary aldosteronism causes severe hypertension in human (Conn's syndrome) with cardiac hypertrophy, characterized by a fibrosis more severe than the one observed in patients with essential hypertension. This suggests that aldosterone by itself may have specific and direct effects on cardiac remodeling through the activation of the cardiac mineralocorticoid receptor. Experimental evidence obta...

2014
Muhammad Umar Cheema Helle Hasager Damkier Jakob Nielsen Ebbe Toftgaard Poulsen Jan J. Enghild Robert A. Fenton Jeppe Praetorius

Prolonged elevations of plasma aldosterone levels are associated with renal pathogenesis. We hypothesized that renal distress could be imposed by an augmented aldosterone-induced protein turnover challenging cellular protein degradation systems of the renal tubular cells. Cellular accumulation of specific protein aggregates in rat kidneys was assessed after 7 days of aldosterone administration....

Journal: :Clinical science 1998
K M Yee A D Struthers

1. Recent animal evidence suggests that aldosterone, like angiotensin II, may possess detrimental autonomic modulating properties. Aldosterone has been shown to impair the baroreflex response in animal models. This study is designed to test the hypothesis that aldosterone directly attenuates the baroreflex in vivo in man.2. Fourteen healthy male volunteers [mean age (S.D.) 25 (9) years] receive...

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