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Aldosteronism

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https://www.readbyqxmd.com/read/28545803/impact-of-a-multidisciplinary-heart-failure-postdischarge-management-clinic-on-medication-adherence
#1
Lingyun Lu, Cynthia A Jackevicius, Noelle K de Leon, Alberta L Warner, Donald S Chang, Freny Vaghaiwalla Mody
PURPOSE: Disease management programs have been associated with improved adherence to heart failure (HF) medications. However, there remain limited data on the benefit of a comprehensive multidisciplinary HF postdischarge management (PDM) clinic that promptly follows HF-related hospitalization on evidence-based HF medication adherence. OBJECTIVE: The aim of this study was to evaluate the effects of an HF-PDM clinic on adherence to evidence-based HF medication therapy...
May 22, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28545792/living-alone-and-activation-of-the-renin-angiotensin-aldosterone-system-differential-effects-depending-on-alexithymic-personality-features
#2
Jan Terock, Anke Hannemann, Deborah Janowitz, Henry Völzke, Matthias Nauck, Harald-Jürgen Freyberger, Henri Wallaschofski, Hans Jörgen Grabe
OBJECTIVE: Living alone is considered as a chronic stress factor predicting different health conditions and particularly cardiovascular disease (CVD). Alexithymia is associated with increased psychological distress, less social skills and fewer close relationships, making alexithymic subjects particularly susceptible to chronic stress imposed by "living alone". Only few studies investigated the renin-angiotensin-aldosterone-system (RAAS) activity in response to chronic stress. We aimed at evaluating the effects of "living alone" as a paradigm for chronic stress on RAAS activity and putatively differential effects depending on alexithymic personality features...
May 2017: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/28542926/effect-of-spironolactone-on-exercise-tolerance-and-arterial-function-in-older-adults-with-heart-failure-with-preserved-ejection-fraction
#3
Bharathi Upadhya, William G Hundley, Peter H Brubaker, Timothy M Morgan, Kathryn P Stewart, Dalane W Kitzman
OBJECTIVES: To evaluate the effects of an aldosterone antagonist on exercise intolerance in older adults with heart failure and preserved ejection fraction (HFpEF). DESIGN: Randomized, placebo-controlled, double-blind trial. SETTING: Academic medical center, Winston-Salem, North Carolina. PARTICIPANTS: Older adults (N = 80, aged 71 ± 1; 80% female) with stable compensated HFpEF and controlled blood pressure (BP)...
May 19, 2017: Journal of the American Geriatrics Society
https://www.readbyqxmd.com/read/28541811/future-drug-discovery-in-renin-angiotensin-aldosterone-system-intervention
#4
Maria Tamargo, Juan Tamargo
Renin-angiotensin- aldosterone system inhibitors (RAASIs), including angiotensin-converting enzyme inhibitors, angiotensin AT1 receptor blockers and mineralocorticoid receptor antagonists (MRAs), are the cornerstone for the treatment of cardiovascular and renal diseases. Areas covered: The authors searched MEDLINE, PubMed and ClinicalTrials.gov to identify eligible full-text English language papers. Herein, the authors discuss AT2-receptor agonists and ACE2/angiotensin-(1- 7)/Mas-receptor axis modulators, direct renin inhibitors, brain aminopeptidase A inhibitors, biased AT1R blockers, chymase inhibitors, multitargeted drugs, vaccines and aldosterone receptor antagonists as well as aldosterone synthase inhibitors...
May 25, 2017: Expert Opinion on Drug Discovery
https://www.readbyqxmd.com/read/28540934/monozygotic-twins-discordant-for-primary-aldosteronism-a-case-report
#5
Y Kobayashi, K Yatsu, K Nakata-Shimokihara, N Inoue, T Fujikawa, N Hirawa, S Umemura, F Satoh, G P Rossi, K Tamura
No abstract text is available yet for this article.
May 25, 2017: Journal of Human Hypertension
https://www.readbyqxmd.com/read/28540931/hyperkalemia-in-both-surgically-and-medically-treated-patients-with-primary-aldosteronism
#6
N Wada, Y Shibayama, H Umakoshi, T Ichijo, Y Fujii, K Kamemura, T Kai, R Sakamoto, A Ogo, Y Matsuda, T Fukuoka, M Tsuiki, T Suzuki, M Naruse
Hyperkalemia is an important complication of adrenalectomy for patients with primary aldosteronism (PA). The frequency of hyperkalemia after medication using mineralocorticoid receptor antagonists (MRAs) for PA is unclear. The aim of this study is to investigate the frequency and the risk factors of hyperkalemia after surgery and medication for PA. The data of 376 patients with PA registered in a multicentre-collaborative study in Japan, including surgically treated patients (group A; n=142) and medically treated patients with MRAs (group B; n=234) were studied...
May 25, 2017: Journal of Human Hypertension
https://www.readbyqxmd.com/read/28540892/aldosterone-synthase-gene-is-not-a-major-susceptibility-gene-for-progression-of-chronic-kidney-disease-in-patients-with-autosomal-dominant-polycystic-kidney-disease
#7
Gnanasambandan Ramanathan, Ramprasad Elumalai, Soundararajan Periyasamy, Bhaskar V K S Lakkakula
Autosomal dominant polycystic kidney disease (ADPKD) is the most common heritable kidney disease and is characterized by bilateral renal cysts. Hypertension is a frequent cause of chronic kidney disease (CKD) and mortality in patients with ADPKD. The aldosterone synthase gene polymorphisms of the renin-angiotensin-aldosterone system have been extensively studied as hypertension candidate genes. The present study is aimed to investigate the potential modifier effect of CYP11B2 gene on the progression of CKD in ADPKD...
May 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28540887/evaluation-of-medication-use-in-malaysian-predialysis-patients
#8
Muhammad Salman, Amer Hayat Khan, Azreen Syazril Adnan, Syed Azhar Syed Sulaiman, Naureen Shehzadi, Nauman Asif, Khalid Hussain, Fahad Saleem, Muhammed Hussnain Raza, Muhammad Shahid Farooq
Chronic kidney disease (CKD) patients suffer from multiple comorbidities and complications as a cause or consequence of kidney disease. Information regarding medication- prescribing patterns in predialysis patients is sparse. We conducted a retrospective study to evaluate the medication prescription patterns among predialysis patients. Medical records (both paper based and computerized) of patients at CKD Resource Centre, Hospital Universiti Sains Malaysia, were reviewed. A total of 615 eligible cases were included in the study...
May 2017: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/28539577/new-insights-into-tolvaptan-treatment-and-the-renin-angiotensin-aldosterone-system
#9
Keisuke Kida
No abstract text is available yet for this article.
May 23, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28537227/association-of-cyp17a1-genetic-polymorphisms-and-susceptibility-to-essential-hypertension-in-the-southwest-han-chinese-population
#10
Qian Li, Tangxin Gao, Yuncang Yuan, Yanrui Wu, Qionglin Huang, Fei Xie, Pengzhan Ran, Lijuan Sun, Chunjie Xiao
BACKGROUND The CYP17A1 gene encodes for cytochrome P450 enzyme CYP17A1, which is involved with the steroidogenic pathway including mineralocorticoids. The CYP17A1 polymorphisms might affect enzyme activity, then leading to a state of mineralocorticoid 11-deoxycorticosterone excess characterized by hypertension, suppressed plasma renin activity, and low aldosterone concentrations. The aim of this study was to investigate the contribution of CYP17A1 polymorphisms in inducing the susceptibility to essential hypertension among the Southwest Han Chinese population...
May 24, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28533421/mineralocorticoid-receptor-activation-and-specificity-conferring-mechanisms-a-short-history
#11
John W Funder
The mineralocorticoid receptor (henceforth MR) was first characterized 45 years ago (Funder 1972, Rousseau 1972), a decade and a half before its successful cloning (Arriza 1987) to which this issue of the Journal is dedicated. Aldosterone had been isolated and characterized 20 years before the MR: its initial name was electrocortin, reflecting its ability to promote electrolyte transport across epithelial membranes, rapidly changed to its familiar, current name aldosterone. What prompted the change was the finding of a unique aldehyde group at carbon18 of the steroid molecule, the physiological significance of which only became clear many years later (Funder 1988, Edwards 1988)...
May 22, 2017: Journal of Endocrinology
https://www.readbyqxmd.com/read/28533088/a-ubiquitin-proteasome-inhibitor-bortezomib-suppresses-the-expression-of-cyp11b2-a-key-enzyme-of-aldosterone-synthesis-as-revealed-by-chemical-screening
#12
Ryo Ito, Ikuko Sato, Tadayuki Tsujita, Atsushi Yokoyama, Akira Sugawara
CYP11B2 is a key enzyme involved in the synthesis of the mineralocorticoid aldosterone. CYP11B2 expression in the adrenal glands is controlled by the renin-angiotensin system (RAS), and plays an important role in the maintenance of electrolyte metabolism in higher organisms. Abnormal overexpression of CYP11B2 results in the disruption of mineral balance and can lead to hypertension. Though the molecular mechanism of the regulation of CYP11B2 expression has remained elusive, we hypothesize that compounds that prevent CYP11B2 expression could represent a novel class of antihypertensive drugs...
May 19, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28529209/quantitative-value-of-aldosterone-renin-ratio-for-detection-of-aldosterone-producing-adenoma-the-aldosterone-renin-ratio-for-primary-aldosteronism-aquarr-study
#13
Giuseppe Maiolino, Giacomo Rossitto, Valeria Bisogni, Maurizio Cesari, Teresa Maria Seccia, Mario Plebani, Gian Paolo Rossi
BACKGROUND: Current guidelines recommend use of the aldosterone-renin ratio (ARR) for the case detection of primary aldosteronism followed by confirmatory tests to exclude false-positive results from further diagnostic workup. We investigated the hypothesis that this could be unnecessary in patients with a high ARR value if the quantitative information carried by the ARR is taken into due consideration. METHODS AND RESULTS: We interrogated 2 large data sets of prospectively collected patients studied with the same predefined protocol, which included the captopril challenge test...
May 21, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28527699/at1-receptor-signaling-pathways-in-the-cardiovascular-system
#14
REVIEW
Tatsuo Kawai, Steven J Forrester, Shannon O'Brien, Ariele Baggett, Victor Rizzo, Satoru Eguchi
The importance of the renin angiotensin aldosterone system in cardiovascular physiology and pathophysiology has been well described whereas the detailed molecular mechanisms remain elusive. The angiotensin II type 1 receptor (AT1 receptor) is one of the key players in the renin angiotensin aldosterone system. The AT1 receptor promotes various intracellular signaling pathways resulting in hypertension, endothelial dysfunction, vascular remodeling and end organ damage. Accumulating evidence shows the complex picture of AT1 receptor-mediated signaling; AT1 receptor-mediated heterotrimeric G protein-dependent signaling, transactivation of growth factor receptors, NADPH oxidase and ROS signaling, G protein-independent signaling, including the β-arrestin signals and interaction with several AT1 receptor interacting proteins...
May 17, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28526806/the-relationship-among-cardiac-structure-dietary-salt-and-aldosterone-in-patients-with-primary-aldosteronism
#15
Chi-Sheng Hung, Xue-Ming Wu, Ching-Way Chen, Ying-Hsien Chen, Vin-Cent Wu, Che-Wei Liao, Yi-Yao Chang, Ruh-Fang Yen, Ching-Chu Lu, Mao-Yuan M Su, Kao-Lang Liu, Chin-Chen Chang, Li-Yu Daisy Liu, Kwan-Dun Wu, Yen-Hung Lin
Salt intake is highly associated with cardiac structure in patients with primary aldosteronism (PA). We investigated the association among dietary salt intake, aldosterone and left ventricular mass in patients with PA. We enrolled 158 patients with PA and 158 patients with essential hypertension. We measured 24-hour urinary sodium (UNa) and aldosterone (UAldo) level and echocardiography parameters. In patients with PA, the UAldo level was positively correlated with left ventricular mass index (LVMI; r=0.231, p=0...
April 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28523441/progress-in-the-presence-of-failure-updates-in-chronic-systolic-heart-failure-management
#16
REVIEW
Katie M Murphy, Julie L Rosenthal
The therapeutic heart failure armamentarium has evolved from drugs to transplantation to devices through further understanding of its complex pathophysiology and pathogenesis. Current medications capitalize on our evolving understanding of the sympathetic and renin-angiotensin-aldosterone systems that subsequently promote both beneficial and maladaptive responses that ultimately yield a decrease in cardiac function. Despite these advancements, the prevalence of heart failure continues to rise and carries a significant burden on our patients and health care system...
July 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28520883/effect-of-isotonic-versus-hypotonic-maintenance-fluid-therapy-on-urine-output-fluid-balance-and-electrolyte-homeostasis-a-crossover-study-in-fasting-adult-volunteers
#17
N Van Regenmortel, T De Weerdt, A H Van Craenenbroeck, E Roelant, W Verbrugghe, K Dams, M L N G Malbrain, T Van den Wyngaert, P G Jorens
Background.: Daily and globally, millions of adult hospitalized patients are exposed to maintenance i.v. fluid solutions supported by limited scientific evidence. In particular, it remains unclear whether fluid tonicity contributes to the recently established detrimental effects of fluid, sodium, and chloride overload. Methods.: This crossover study consisted of two 48 h study periods, during which 12 fasting healthy adults were treated with a frequently prescribed solution (NaCl 0...
May 16, 2017: British Journal of Anaesthesia
https://www.readbyqxmd.com/read/28520568/endothelin-a-receptor-antagonists-in-diabetic-kidney-disease
#18
Panagiotis I Georgianos, Rajiv Agarwal
PURPOSE OF REVIEW: Despite optimal therapy of diabetic nephropathy with agents blocking the renin-angiotensin-aldosterone system, the residual risk of nephropathy progression to end-stage renal disease (ESRD) remains high. The purpose of this review is to discuss the potential role of endothelin antagonism as a therapeutic tool to reduce residual proteinuria and delay kidney injury progression among patients with diabetic nephropathy. RECENT FINDINGS: Preclinical studies have shown that endothelin receptor antagonists (ERAs) exert proteinuria lowering and nephroprotective actions in experimental models of diabetic nephropathy...
May 17, 2017: Current Opinion in Nephrology and Hypertension
https://www.readbyqxmd.com/read/28520450/-at1-blockers-comparability-with-ace-inhibitors
#19
Václav Monhart
The reduction in overall mortality, cardiovascular mortality and the occurrence of myocardial infarction in patients treated with AT1 blockers is comparable with the use of ACE inhibitors. In addition, there is a lower proportion of AT1 blockers withdrawal of treatment due to adverse reactions.Key words: ACE inhibitors - AT1 blockers - cardioprotection - hypertension - renin-angiotensin-aldosteron system.
2017: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/28515448/involvement-of-vascular-aldosterone-synthase-in-phosphate-induced-osteogenic-transformation-of-vascular-smooth-muscle-cells
#20
Ioana Alesutan, Jakob Voelkl, Martina Feger, Denise V Kratschmar, Tatsiana Castor, Sobuj Mia, Michael Sacherer, Robert Viereck, Oliver Borst, Christina Leibrock, Meinrad Gawaz, Makoto Kuro-O, Stefan Pilz, Andreas Tomaschitz, Alex Odermatt, Burkert Pieske, Carsten A Wagner, Florian Lang
Vascular calcification resulting from hyperphosphatemia is a major determinant of mortality in chronic kidney disease (CKD). Vascular calcification is driven by aldosterone-sensitive osteogenic transformation of vascular smooth muscle cells (VSMCs). We show that even in absence of exogenous aldosterone, silencing and pharmacological inhibition (spironolactone, eplerenone) of the mineralocorticoid receptor (MR) ameliorated phosphate-induced osteo-/chondrogenic transformation of primary human aortic smooth muscle cells (HAoSMCs)...
May 17, 2017: Scientific Reports
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