View clinical trials related to Hyperaldosteronism.
Filter by:The purpose of this study is to figure out how decreasing the activity of 11-beta hydroxysteroid dehydrogenase (11-beta HSD) will affect your blood vessel function. 11-beta HSD, which is found in the kidneys and blood vessels, is a natural protein that when active helps to keep your blood pressure under control.
Primary aldosteronism (PA), characterized by an inappropriate production of aldosterone, is far more common than is usually perceived. The overall prevalence of PA is 11.2% of the newly diagnosed hypertensive patients and 4.8% was curable aldosterone producing adenoma (APA), and adrenalectomy is considered the treatment of choice for APA. The potential curability and prevention of excess cardiovascular damage and events also underscores the need to develop accurate strategies for the timely diagnosis of APA.This study aimed to determine the effects of endothelium function change ( PWV, progenitor cell,..) before and post-adrenalectomy or taking spironolactone in patients with aldosteronism. Autonomous elevated aldosterone will increase the glomerular filtration rate and renal damage in patients with primary aldosteronism (PA). But clinical evidence of the role of endothelium function on post-adrenalectomy or taking spirolactone is still limited.
The purpose of this study is to determine if LCI699, thorough reductions in aldosterone, can lower BP in patients with Primary hyperaldosteronism.
The pathogenesis of adrenal tumors is still not fully elucidated and the treatment options for malignant tumors are poor. The current study investigates different aspects of the pathogenesis of adrenal tumors and evaluates different therapeutic options in patients with adrenocortical carcinoma.
It is well known that Aldosterone (aldo) can cause hypertension (HBP). Since aldo is known to cause the kidney to retain sodium (Na) and Na retention is known to cause HBP, it has been thought that the mechanism by which aldo causes HBP is by Na retention. Recent studies have suggested that aldo has many effects in addition to its ability to cause the kidney to retain Na. To test the hypothesis that aldo can cause HBP in a manner which does not involve Na retention, we plan, in this protocol, to give Eplerenone, a specific aldo antagonist, to patients on dialysis who have HBP. A positive effect of Eplerenone to lower HBP in these patients would support this hypothesis.
Apparent mineralocorticoid excess (AME) is a rare inherited disease that can cause severe high blood pressure and low blood potassium in children and adults. It is caused by abnormal hormone metabolism and can be fatal. This study will focus on the genetic basis, natural history, disease progression, and survival of people with AME.
we propose that bromocriptine may be an alternative treatment of primary aldosteronism, both APA and BAH.
This study aims to evaluate the diagnostic value of the Aldosterone-Renin Ratio (ARR)as a screening test for primary aldosteronism among hypertensives. The test characteristics will be studied. Furthermore, the effect of eplerenone, a selective aldosterone-receptor antagonist will be studied.
Primary aldosteronism (PA) is occasionally associated with impaired glucose tolerance. Glucose intolerance, in general metabolic syndrome is caused by suppression of insulin release from the pancreas and suppression of insulin sensitivity of the target tissues. Several studies have suggested that impaired glucose tolerance in primary aldosteronism is due to an inability of the beta cells to release insulin by potassium depletion. It was suggested glucose intolerance in PA is caused by the suppression of insulin release related to hypopotassemia and compensatory increase of insulin sensitivity is observed in PA. The increased insulin secretory capacity associated with correction of negative potassium balance may account for the increase in plasma leptin after curing primary aldosteronism. The conclusion with respect to the possible causal relationship between diabetes mellitus (DM) and PA, however, can be obtained after the evaluation of the effect of surgical /pharmacological treatment of PA.
The tissue kallikrein-kinin (KKS) and renin-angiotension-aldosterone system (RAAS) had been implicated in regulating blood pressure and electrolyte homeostasis. Both of the KKS and RAAS may work coordinately to regulate salt metabolism, local blood flow. Thus, we conducted this study to elucidate, first, whether some alterations in components of the kallikrein-kinin system could do effect on aldosterone secretion. Previous study has shown the post captopril plasma aldosterone concentration (PAC)/ plasma rennin activity (PRA) ration (ARR) was a reliable method for diagnosis of primary aldosteronism (PA). The ARR change by angiotensin II receptor blockade was reported to be significantly higher than that by ACE inhibitor. This study assessed whether angiotensin II receptor blockade offers any additional advantage in the diagnosis of PA. Clinically we evaluated the sensitivity and specificity of captopril (angiotensin-converting enzyme inhibition) and losartan (angiotensin II type 1 receptor blocker) test in PA patient. This interaction mechanism, in term, could further explain the interaction of KKS and RAAS.