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https://www.readbyqxmd.com/read/29352336/who-was-dr-william-c-baum
#1
REVIEW
Mitchell R Ladd, Martha A Zeiger
The first discovery of primary hyperaldosteronism secondary to an aldosterone-secreting adrenal adenoma has been credited solely to Dr. Jerome Conn, an endocrinologist at the University of Michigan and for whom, Conn syndrome was named. Dr. William Baum, a urologist at the University of Michigan, however, was instrumental in the appropriate operation and historical aldosteronoma resection. Despite Dr. Baum's important role in this discovery, he was never included as an author in any of the subsequent papers describing Conn syndrome and, few today would recognize his name...
January 19, 2018: World Journal of Surgery
https://www.readbyqxmd.com/read/29352074/aldosterone-sgk1-and-ion-channels-in-the-kidney
#2
REVIEW
William C Valinsky, Rhian M Touyz, Alvin Shrier
Hyperaldosteronism, a common cause of hypertension, is strongly connected to Na+, K+, and Mg2+ dysregulation. Owing to its steroidal structure, aldosterone is an active transcriptional modifier when bound to the mineralocorticoid receptor (MR) in cells expressing the enzyme 11β-hydroxysteroid dehydrogenase 2, such as those comprising the aldosterone-sensitive distal nephron (ASDN). One such up-regulated protein, the ubiquitous serum and glucocorticoid regulated kinase 1 (SGK1), has the capacity to modulate the surface expression and function of many classes of renal ion channels, including those that transport Na+ (ENaC), K+ (ROMK/BK), Ca2+ (TRPV4/5/6), Mg2+ (TRPM7/6), and Cl- (ClC-K, CFTR)...
January 31, 2018: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29348428/evaluation-of-quantitative-parameters-for-distinguishing-pheochromocytoma-from-other-adrenal-tumors
#3
Youichi Ohno, Masakatsu Sone, Daisuke Taura, Toshinari Yamasaki, Katsutoshi Kojima, Kyoko Honda-Kohmo, Yorihide Fukuda, Koji Matsuo, Toshihito Fujii, Akihiro Yasoda, Osamu Ogawa, Nobuya Inagaki
Adrenal tumors are increasingly found incidentally during imaging examinations. It is important to distinguish pheochromocytomas from other adrenal tumors because of the risk of hypertensive crisis. Although catecholamines and their metabolites are generally used to diagnose pheochromocytoma, false-positive test results are common. An effective screening method to distinguish pheochromocytoma from adrenal incidentalomas is needed. We analyzed 297 consecutive patients with adrenal incidentalomas. Our findings included 162 non-functioning tumors, 47 aldosterone-producing adenomas, 26 metastases, 22 cases of subclinical Cushing's syndrome, 21 pheochromocytomas, 12 cases of Cushing's syndrome, and 7 adrenocortical cancers...
January 18, 2018: Hypertension Research: Official Journal of the Japanese Society of Hypertension
https://www.readbyqxmd.com/read/29348255/hypertension-and-atrial-fibrillation-doubts-and-certainties-from-basic-and-clinical-studies
#4
REVIEW
Paolo Verdecchia, Fabio Angeli, Gianpaolo Reboldi
Hypertension and atrial fibrillation (AF) are 2 important public health priorities. Their prevalence is increasing worldwide, and the 2 conditions often coexist in the same patient. Hypertension and AF are strikingly related to an excess risk of cardiovascular disease and death. Hypertension ultimately increases the risk of AF, and because of its high prevalence in the population, it accounts for more cases of AF than other risk factors. Among patients with established AF, hypertension is present in about 60% to 80% of individuals...
January 19, 2018: Circulation Research
https://www.readbyqxmd.com/read/29348113/genetics-in-endocrinology-the-expanding-genetic-horizon-of-primary-aldosteronism
#5
Silvia Monticone, Fabrizio Buffolo, Martina Tetti, Franco Veglio, Barbara Pasini, Paolo Mulatero
Aldosterone is the main mineralocorticoid hormone in humans and plays a key role in maintaining water and electrolyte homeostasis. Primary aldosteronism (PA), characterized by autonomous aldosterone overproduction by the adrenal glands, affects 6% of the general hypertensive population and can be either sporadic or familial. Aldosterone producing adenoma (APA) and bilateral adrenal hyperplasia (BAH) are the two most frequent subtypes of sporadic PA, and 4 forms of familial hyperaldosteronism (FH-I to FH-IV) have been identified...
January 18, 2018: European Journal of Endocrinology
https://www.readbyqxmd.com/read/29345505/the-pharmacological-management-of-metabolic-syndrome
#6
Julie Rask Larsen, Lorena Dima, Christoph U Correll, Peter Manu
Introduction The metabolic syndrome includes a constellation of several well-established risk factors, which need to be aggressively treated in order to prevent overt type 2 diabetes and cardiovascular disease. While recent guidelines for the treatment of individual components of the metabolic syndrome focus on cardiovascular benefits as resulted from clinical trials, specific recent recommendations on the pharmacological management of metabolic syndrome are lacking. The objective of present paper was to review the therapeutic options for metabolic syndrome and its components, the available evidence related to their cardiovascular benefits, and to evaluate the extent to which they should influence the guidelines for clinical practice...
January 18, 2018: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/29345404/individual-variability-in-response-to-renin-angiotensin-aldosterone-system-inhibition-predicts-cardiovascular-outcome-in-patients-with-type-2-diabetes-a-primary-care-cohort-study
#7
Ellen M Apperloo, Michelle J Pena, Dick de Zeeuw, Petra Denig, Hiddo Jl Heerspink
AIMS: Variability in response to Renin-Angiotensin-Aldosterone System (RAAS) inhibition has been shown in clinical trials but its occurrence and impact in clinical practice are unknown. We assessed variability in systolic blood pressure (SBP) and albuminuria (UACR) responses in patients with type 2 diabetes mellitus initiating RAAS inhibition, and assessed the association of response variability with cardiovascular outcomes. METHODS: We performed an observational cohort study in patients with type 2 diabetes who started RAAS inhibition between 2007 and 2013 (n=1600) were identified from general practices in the Netherlands...
January 18, 2018: Diabetes, Obesity & Metabolism
https://www.readbyqxmd.com/read/29344922/impact-of-renin-angiotensin-aldosterone-system-polymorphisms-on-myocardial-perfusion-correlations-with-myocardial-single-photon-emission-computed-tomography-derived-parameters
#8
George Angelidis, Maria Samara, Maria Papathanassiou, Maria Satra, Varvara Valotassiou, Ioannis Tsougos, Dimitrios Psimadas, Chara Tzavara, Sotiria Alexiou, John Koutsikos, Nikolaos Demakopoulos, Gregory Giamouzis, Filippos Triposkiadis, John Skoularigis, Panagoula Kollia, Panagiotis Georgoulias
BACKGROUND: Renin-angiotensin-aldosterone system (RAAS) has an important role in atherosclerosis. We investigated the effects of six RAAS gene polymorphisms on myocardial perfusion. METHODS AND RESULTS: We examined 810 patients with known or suspected coronary artery disease (CAD) using stress-rest myocardial single-photon emission computed tomography. Summed stress score (SSS), summed rest score (SRS), summed difference score (SDS), transient ischemic dilation (TID), and lung/heart ratio (LHR) were recorded...
January 17, 2018: Journal of Nuclear Cardiology: Official Publication of the American Society of Nuclear Cardiology
https://www.readbyqxmd.com/read/29344085/synthesis-secretion-function-metabolism-and-application-of-natriuretic-peptides-in-heart-failure
#9
REVIEW
Shihui Fu, Ping Ping, Fengqi Wang, Leiming Luo
As a family of hormones with pleiotropic effects, natriuretic peptide (NP) system includes atrial NP (ANP), B-type NP (BNP), C-type NP (CNP), dendroaspis NP and urodilatin, with NP receptor-A (guanylate cyclase-A), NP receptor-B (guanylate cyclase-B) and NP receptor-C (clearance receptor). These peptides are genetically distinct, but structurally and functionally related for regulating circulatory homeostasis in vertebrates. In humans, ANP and BNP are encoded by NP precursor A (NPPA) and NPPB genes on chromosome 1, whereas CNP is encoded by NPPC on chromosome 2...
2018: Journal of Biological Engineering
https://www.readbyqxmd.com/read/29344052/manidipine-an-antihypertensive-drug-with-positive-effects-on-metabolic-parameters-and-adrenergic-tone-in-patients-with-diabetes
#10
REVIEW
Margarita SaizSatjes, Francisco Javier Martinez-Martin
Antihypertensive treatment of patients with diabetes should include those drugs with a positive effect on metabolic parameters. Most patients with diabetes require at least two antihypertensive agents. Combining a dihydropyridine calcium channel blocker with a renin-angiotensin-aldosterone system inhibitor is a rational approach. However, not all dihydropyridines are equal with respect to their effects on metabolic parameters. Thus, manidipine exerts a positive effect on insulin resistance. However, this effect has not been observed with amlodipine...
2018: Drugs in Context
https://www.readbyqxmd.com/read/29343998/rationale-and-design-for-a-monocentric-prospective-study-sleep-apnea-diagnosis-using-a-novel-pacemaker-algorithm-and-link-with-aldosterone-plasma-level-in-patients-presenting-with-diastolic-dysfunction-sapaad-study
#11
Laure Champ-Rigot, Virginie Ferchaud, Jean-Noël Prévost, Pierre Moirot, Arnaud Pellissier, Damien Legallois, Joachim Alexandre, Patrice Scanu, Remy Morello, Eric Saloux, Paul Ursmar Milliez
Previous studies showed good agreement between pacemaker respiratory disturbance index (RDI) and polysomnography for diagnosis of severe sleep apnea (SA). The aim of this study is to investigate the diagnostic accuracy of RDI compared with apnea-hypopnea index (AHI) from a cardiorespiratory sleep study for the diagnosis of severe SA within patients requiring a pacemaker and meeting diastolic dysfunction criteria. Secondary objectives are as follows: correlation between plasma aldosterone level and SA severity, diagnostic accuracy of RDI for moderate SA, prevalence of SA among patients with diastolic dysfunction, occurrence of arrhythmias, and improvement of RDI with continuous positive airway pressure therapy...
2018: Clinical Medicine Insights. Cardiology
https://www.readbyqxmd.com/read/29343424/igf1-mapk-erk-signaling-pathway-mediated-programming-alterations-of-adrenal-cortex-cell-proliferation-by-prenatal-caffeine-exposure-in-male-offspring-rats
#12
Guanghui Chen, Chao Yuan, Fangfang Duan, Yanyan Liu, Jinzhi Zhang, Zheng He, Hegui Huang, Chunjiang He, Hui Wang
Our previous study proposed a glucocorticoid-insulin-like growth factor 1 (GC-IGF1) axis programming mechanism for prenatal caffeine exposure (PCE)-induced adrenal developmental dysfunction. Here, we focused on PCE-induced cell proliferation changes of the adrenal cortex in male offspring rats before and after birth and clarified the intrauterine programming mechanism. On gestational day (GD) 20, the PCE group had an elevated serum corticosterone level reduced fetal bodyweight, maximum adrenal sectional area, and elevated adrenal corticosterone and aldosterone contents...
January 14, 2018: Toxicology and Applied Pharmacology
https://www.readbyqxmd.com/read/29339184/a-novel-stress-hormone-response-gene-in-tadpoles-of-xenopus-tropicalis
#13
Katelin A Schneider, Leena H Shewade, Nicolas Buisine, Laurent M Sachs, Daniel R Buchholz
Previous work identified a transcribed locus, Str. 34945, induced by the frog stress hormone corticosterone (CORT) in Xenopus tropicalis tails. Because thyroid hormone had no influence on its expression, Str. 34945 was dubbed the first "CORT-only" gene known from tadpoles. Here, we examine the genomic annotation for this transcript, hormone specificity, time course of induction, tissue distribution, and developmental expression profile. The location of Str. 34945 on the X. tropicalis genome lies between the genes ush1g (Usher syndrome 1G) and fads6 (fatty acid desaturase 6)...
January 12, 2018: General and Comparative Endocrinology
https://www.readbyqxmd.com/read/29336269/design-synthesis-and-biological-evaluation-of-new-azole-derivatives-as-potent-aromatase-inhibitors-with-potential-effects-against-breast-cancer
#14
Farzin Hadizadeh, Fatemeh Kalalinia, Mohammad Jouya, Alireza Khorsand Komachal, Aboutourabzadeh Seyed Mohammad, Gholamreza Karimi, Javad Behravan, Khalil Abnous, Leila Etemad, Hossein Kamali
PURPOSE: Some aromatase inhibitors are FDA-approved agents as first-line therapy in the treatment of endocrine-responsive breast cancer. In this study, we aimed to develop new azole derivatives with higher specificity and potency. METHODS: New aromatase inhibitors were designed by Molecular Operating Environment (MOE) software and synthesized in a one-step SN2 reaction. These compounds were characterized by melting point, 1H- and 13C-NMR, elemental analysis and mass spectra...
January 15, 2018: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/29335866/balancing-effect-of-biejiajian-oral-liquid-on-ace-ang-ii-at1r-axis-and-ace2-ang-1-7-mas-axis-in-rats-with-ccl4-induced-hepatic-fibrosis
#15
Xiao-Ya Li, Yan Peng, Xia-Wei Bu, Jia Yao, Li Yao
OBJECTIVE: To explore the effect of Biejiajian Oral Liquid (, BOL) on CCl4-induced hepatic fibrosis in rats by detecting the changes in the levels of angiotensin II (Ang II), angiotensin-(1-7) [Ang-(1-7)], angiotensin-converting enzyme (ACE), ACE2, angiotensin II type 1 receptor (AT1R), Mas, etc. METHODS: A total of 180 Wistar rats were randomly divided into two groups by random digital table method: prevention experiment and treatment experiment. Each group was further subdivided into the following 6 subgroups: normal control group, model group, vitamin E [100 mg/(kg•d), VE] group, enalapril [10 mg/(kg•g), Ena] group, high-dosage [20 g/(kg•d)] BOL group, and low-dosage [10 g/(kg•d)] BOL group...
January 15, 2018: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29335324/prevalence-of-primary-aldosteronism-in-primary-care-a-cross-sectional-study
#16
Sabine C Käyser, Jaap Deinum, Wim Jc de Grauw, Bianca Wm Schalk, Hans Jhj Bor, Jacques Wm Lenders, Tjard R Schermer, Marion Cj Biermans
BACKGROUND: Primary aldosteronism (PA) is the most frequent cause of secondary hypertension. Reported prevalences of PA vary considerably because of a large heterogeneity in study methodology. AIM: To examine the proportion of patients with PA among patients with newly diagnosed, never treated hypertension. DESIGN AND SETTING: A cross-sectional study set in primary care. METHOD: GPs measured aldosterone and renin in adult patients with newly diagnosed, never treated hypertension...
January 15, 2018: British Journal of General Practice: the Journal of the Royal College of General Practitioners
https://www.readbyqxmd.com/read/29328453/aldosterone-is-involved-in-the-pathogenesis-of-obesity-related-glomerulopathy-through-activation-of-wnt-%C3%AE-catenin-signaling-in-podocytes
#17
Jia-Jia Zhu, Yi-Pu Chen, Min Yang, Bao-Li Liu, Jing Dong, Hong-Rui Dong, Hong-Liang Rui, Hong Cheng
Obesity-related glomerulopathy (ORG) is morphologically characterized by glomerulomegaly with or without observable focal segmental glomerulosclerosis under light microscope, with decreased podocyte density and number, and with increased foot‑process width observed under electron microscope. The severity of podocyte injury is correlated with the degree of proteinuria and renal dysfunction. However, the pathogenesis of ORG is not well understood. The aim of the present study was to explore the possible pathogenic role of aldosterone (ALDO) in ORG...
January 5, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29328025/the-peculiarities-of-the-state-of-the-autonomic-nervous-system-estimated-by-the-method-of-heart-rate-variability-in-patients-with-cirrhosis-and-syntropic-damages-of-cardiovascular-system
#18
O Abrahamovych, M Abrahamovych, M Farmaha, S Tolopko
In the article the features of the autonomic nervous system state were estimated by the method of heart rate variability in patients with cirrhosis with syntropic damages of cardiovascular system - cardiomyopathy and arterial hypotension. As a result of an examination of 50 patients with liver cirrhosis and cardiomyopathy (investigational group A), 54 patients with liver cirrhosis and arterial hypotension (investigational group B), and 45 patients with liver cirrhosis also those who don't have the damages of cardiovascular system (group of comparison) it was established that: 1) they have the peculiarities of vegetative imbalance the characteristics of which are the low summarized activity of vegetative influence on heart rhythm and special dynamics of indexes of percentage structure of general spectral power; 2) they depend on the clinical variant of this damage - in patients with cirrhosis and syntropic cardiomyopathy the regulating of internal processes involve the humoral-metabolic influence, i...
December 2017: Georgian Medical News
https://www.readbyqxmd.com/read/29327797/potassium-and-the-use-of-renin-angiotensin-aldosterone-system-inhibitors-in-heart-failure-with-reduced-ejection-fraction-data-from-biostat-chf
#19
Joost C Beusekamp, Jasper Tromp, Haye H van der Wal, Stefan D Anker, John G Cleland, Kenneth Dickstein, Gerasimos Filippatos, Pim van der Harst, Hans L Hillege, Chim C Lang, Marco Metra, Leong L Ng, Piotr Ponikowski, Nilesh J Samani, Dirk J van Veldhuisen, Aeilko H Zwinderman, Patrick Rossignol, Faiez Zannad, Adriaan A Voors, Peter van der Meer
BACKGROUND: Hyperkalaemia is a common co-morbidity in patients with heart failure with reduced ejection fraction (HFrEF). Whether it affects the use of renin-angiotensin-aldosterone system inhibitors and thereby negatively impacts outcome is unknown. Therefore, we investigated the association between potassium and uptitration of angiotensin-converting enzyme inhibitors (ACEi)/angiotensin receptor blockers (ARB) and its association with outcome. METHODS AND RESULTS: Out of 2516 patients from the BIOSTAT-CHF study, potassium levels were available in 1666 patients with HFrEF...
January 12, 2018: European Journal of Heart Failure
https://www.readbyqxmd.com/read/29325636/left-atrial-appendage-closure-and-systemic-homeostasis-the-laa-homeostasis-study
#20
Dhanunjaya Lakkireddy, Mohit Turagam, Muhammad Rizwan Afzal, Johnson Rajasingh, Donita Atkins, Buddhadeb Dawn, Luigi Di Biase, Krzysztof Bartus, Saibal Kar, Andrea Natale, David J Holmes
BACKGROUND: The impact of left atrial appendage (LAA) exclusion, comparing an epicardial LAA or an endocardial LAA device, on systemic homeostasis remains unknown. OBJECTIVES: This study compared the effects of epicardial or endocardial LAA devices on the neurohormonal profiles of patients, emphasizing the roles of the renin-angiotensin-aldosterone system and the autonomic nervous system. METHODS: This is a prospective, single-center, observational study including 77 patients who underwent LAA closure by an epicardial (n = 38) or endocardial (n = 39) device...
January 16, 2018: Journal of the American College of Cardiology
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