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primary aldosteronism

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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/29348113/genetics-in-endocrinology-the-expanding-genetic-horizon-of-primary-aldosteronism
#2
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/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
#3
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/29343424/igf1-mapk-erk-signaling-pathway-mediated-programming-alterations-of-adrenal-cortex-cell-proliferation-by-prenatal-caffeine-exposure-in-male-offspring-rats
#4
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/29335324/prevalence-of-primary-aldosteronism-in-primary-care-a-cross-sectional-study
#5
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/29321380/renin-angiotensin-aldosterone-system-activation-in-long-standing-type-1-diabetes
#6
Julie A Lovshin, Geneviève Boulet, Yuliya Lytvyn, Leif E Lovblom, Petter Bjornstad, Mohammed A Farooqi, Vesta Lai, Leslie Cham, Josephine Tse, Andrej Orszag, Daniel Scarr, Alanna Weisman, Hillary A Keenan, Michael H Brent, Narinder Paul, Vera Bril, Bruce A Perkins, David Zi Cherney
BACKGROUND: In type 1 diabetes (T1D), adjuvant treatment with inhibitors of the renin-angiotensin-aldosterone system (RAAS), which dilate the efferent arteriole, is associated with prevention of progressive albuminuria and renal dysfunction. Uncertainty still exists as to why some individuals with long-standing T1D develop diabetic kidney disease (DKD) while others do not (DKD resistors). We hypothesized that those with DKD would be distinguished from DKD resistors by the presence of RAAS activation...
January 11, 2018: JCI Insight
https://www.readbyqxmd.com/read/29311039/sodium-reduced-meat-and-poultry-products-contain-a-significant-amount-of-potassium-from-food-additives
#7
Arti Sharma Parpia, Marc B Goldstein, JoAnne Arcand, France Cho, Mary R L'Abbé, Pauline B Darling
BACKGROUND: Sodium-reduced packaged food products are increasingly available to consumers; however, it is not clear whether they are suitable for inclusion in a potassium-reduced diet. For individuals with impaired renal potassium excretion caused by chronic kidney disease and for those taking certain medications that interfere with the rennin-angiotensin aldosterone axis, the need to limit dietary potassium is important in view of the risk for development of hyperkalemia and fatal cardiac arrhythmias...
January 6, 2018: Journal of the Academy of Nutrition and Dietetics
https://www.readbyqxmd.com/read/29310997/neurohormonal-imbalance-a-neglected-problem-and-potential-therapeutic-target-in-acute-heart-failure
#8
Steven R Goldsmith, Bradley A Bart, Ileana L Piña
Decompensated or acute heart failure (AHF) is characterized by increased ventricular and atrial pressures which may lead to and be caused by circulatory congestion. Unless due to a primary decrease in cardiac function, congestion arises from volume expansion or vasoconstriction. In turn, volume expansion and vasoconstriction are due to neurohormonal imbalance since both result from activation of the sympathetic nervous system, the renin-angiotensin-aldosterone axis and excess secretion of arginine vasopressin...
December 16, 2017: Current Problems in Cardiology
https://www.readbyqxmd.com/read/29307549/favorable-effects-of-statins-in-the-treatment-of-heart-failure-with-preserved-ejection-fraction-in-patients-without-ischemic-heart-disease
#9
Tetsuro Tsujimoto, Hiroshi Kajio
BACKGROUND: The effects of statins in patients with heart failure with preserved ejection fraction (HFpEF) remain unclear. This study aimed to assess whether statin therapy is associated with a decreased risk of mortality in patients with HFpEF. METHODS: We used data from the Treatment of Preserved Cardiac Function Heart Failure with an Aldosterone Antagonist (TOPCAT) trial. The primary outcome was all-cause mortality. We analyzed hazard ratios (HRs) for outcomes with 95% confidence intervals (95% CIs) in patients taking statins compared with those not taking statins using multivariable Cox proportional hazard models...
January 4, 2018: International Journal of Cardiology
https://www.readbyqxmd.com/read/29303601/the-effect-of-adrenalectomy-on-exercise-response-of-the-renin-angiotensin-aldosterone-system-and-exercise-tolerance-in-primary-aldosteronism
#10
V Tuka, M Matoulek, J Rosa, O Petrák, O Mikeš, Z Krátká, B Štrauch, R Holaj, T Zelinka, J Widimský
Primary aldosteronism (PA) is associated with objectively measured lower physical fitness and blunted response of the renin-angiotensin-aldosterone system to exercise. The purpose of this pilot study was to objectively measure exercise response of the renin-angiotensin-aldosterone system and cardiopulmonary fitness changes after laparoscopic adrenalectomy (ADE) in patients with unilateral PA. We examined a total of 14 patients with confirmed PA before and after ADE, by means of spiroergometry and hormonal evaluation...
January 5, 2018: Physiological Research
https://www.readbyqxmd.com/read/29300995/evaluation-of-the-saline-infusion-test-and-the-captopril-challenge-test-in-chinese-patients-with-primary-aldosteronism
#11
Xiao Meng, Yanyan Li, Xiaohao Wang, Jianwei Li, Yuping Liu, Yerong Yu
Context: The aim of this study was to determine whether the diagnosis cutoff values associated with the saline infusion test (SIT) and captopril challenge test (CCT) in The Endocrine Society guidelines are applicable to Chinese subjects. Objective and Design: We performed a head-to-head comparison of the SIT and CCT among Chinese subjects with primary aldosteronism (PA) and essential hypertension (EH). Participants and Setting: 164 hypertensive patients were enrolled...
December 28, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29288290/complete-remission-of-hypertension-in-a-hemodialysis-patient-after-adrenalectomy-for-primary-aldosteronism-and-renal-transplantation
#12
Daisuke Watanabe, Satoshi Morimoto, Noriyoshi Takano, Shihori Kimura, Yasufumi Seki, Kanako Bokuda, Midori Sasaki-Yatabe, Junichi Yatabe, Hiromi Onizuka, Tomoko Yamamoto, Takashi Ando, Atsuhiro Ichihara
A 64-year-old man was admitted to our hospital for the hormonal evaluation of a right adrenal adenoma. He had been diagnosed with severe proteinuria and hypertension, and antihypertensive treatment was started at the age of 60. His renal function gradually declined, and hemodialysis was begun at the age of 64. Since his blood pressure was uncontrollable and resistant to antihypertensive treatment, an endocrinological examination was performed for an incidental right adrenal mass detected by computed tomography...
December 29, 2017: CEN Case Reports
https://www.readbyqxmd.com/read/29287775/regulation-of-aldosterone-production-by-ion-channels-from-basal-secretion-to-primary-aldosteronism
#13
Tingting Yang, Min He, Changlong Hu
Aldosterone is produced by zona glomerulosa (ZG) cells of the adrenal cortex and plays a key role in balancing water and electrolytes levels. Autonomous overproduction of aldosterone leads to primary aldosteronism (PA), which is the most common form of secondary endocrine hypertension. Recently, significant progress has been made towards understanding the genetic basis of PA, where increasing clinical evidence suggests that mutations in ion channels appear to be the major cause of aldosterone-producing adenomas...
December 26, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29279502/giant-cavernous-hemangioma-of-the-adrenal-gland-in-an-elderly-patient
#14
Ayana Hashimoto, Hiroshi Yoshino, Fukumi Yoshikawa, Naoki Kumashiro, Yasuyo Ando, Fumito Yamabe, Yuri Akishima-Fukasawa, Naoko Honma, Hiroshi Uchino, Takahisa Hirose
Cavernous hemangioma is a rare, non-functional, benign adrenal tumor. Adrenal cavernous hemangioma is often diagnosed after surgery with a histologic examination. A 70-year-old man complaining of appetite loss was admitted to our hospital. An incidental large left adrenal mass was found by computed tomography (CT). There were no clinical signs of adrenogenital syndrome, Cushing's syndrome or primary aldosteronism. Total resection was carried out. The pathological diagnosis was cavernous hemangioma. The differentiation of adrenal tumor is necessary in cases of large tumors, and resection is desirable given the risks of hemorrhaging and rupture...
December 27, 2017: Internal Medicine
https://www.readbyqxmd.com/read/29279316/targeting-cxcr4-cxc-chemokine-receptor-type-4-for-molecular-imaging-of-aldosterone-producing-adenoma
#15
Britta Heinze, Carmina T Fuss, Paolo Mulatero, Felix Beuschlein, Martin Reincke, Mona Mustafa, Andreas Schirbel, Timo Deutschbein, Tracy Ann Williams, Yara Rhayem, Marcus Quinkler, Nada Rayes, Silvia Monticone, Vanessa Wild, Celso E Gomez-Sanchez, Anna-Carinna Reis, Stephan Petersenn, Hans-Juergen Wester, Saskia Kropf, Martin Fassnacht, Katharina Lang, Ken Herrmann, Andreas K Buck, Christina Bluemel, Stefanie Hahner
Primary aldosteronism is the most frequent cause of secondary hypertension and is associated with increased morbidity and mortality compared with hypertensive controls. The central diagnostic challenge is the differentiation between bilateral and unilateral disease, which determines treatment options. Bilateral adrenal venous sampling, currently recommended for differential diagnosis, is an invasive procedure with several drawbacks, making it desirable to develop novel noninvasive diagnostic tools. When investigating the expression pattern of chemokine receptors by quantitative real-time polymerase chain reaction and immunohistochemistry, we observed high expression of CXCR4 (CXC chemokine receptor type 4) in aldosterone-producing tissue in normal adrenals, adjacent adrenal cortex from adrenocortical adenomas, and in aldosterone-producing adenomas (APA), correlating strongly with the expression of CYP11B2 (aldosterone synthase)...
December 26, 2017: Hypertension
https://www.readbyqxmd.com/read/29279269/renin-angiotensin-aldosterone-system-raas-blockers-usage-among-type-ii-diabetes-mellitus-patients-a-retrospective-study
#16
Yen Ping Ng, Ganesh Pandian Balasubramanian, Yi Ping Heng, Meera Kalaiselvan, Yu Wen Teh, Kin Man Cheong, Muhammad Faiz Bin Abdul Hadi, Rosmaliza Bt Othman
AIMS: Recent data showed an alarming rise of new dialysis cases secondary to diabetic nephropathy despite the growing usage of RAAS blockers. Primary objective of this study is to explore the prevalence of RAAS blockers usage among type II diabetic patients, secondary objectives are to compare the prescribing pattern of RAAS blocker between primary and tertiary care center and to explore if the dose of RAAS blocker prescribed was at optimal dose as suggested by trials. MATERIALS AND METHODS: This is a retrospective study conducted at one public tertiary referral hospital and one public health clinic in Sungai Petani, Kedah, Malaysia...
December 21, 2017: Diabetes & Metabolic Syndrome
https://www.readbyqxmd.com/read/29277469/the-seisicat-study-a-pilot-study-assessing-efficacy-and-safety-of-spironolactone-in-cats-with-congestive-heart-failure-secondary-to-cardiomyopathy
#17
Rachel James, Emilie Guillot, Catherine Garelli-Paar, Jacqueline Huxley, Vanessa Grassi, Malcolm Cobb
INTRODUCTION: The pathophysiology of heart failure involves activation of several neurohormonal systems including the renin-angiotensin-aldosterone system. The mineralocorticoid receptor antagonist spironolactone has been shown to be beneficial in humans and dogs with heart failure. The objective of this pilot study was to investigate the efficacy and safety of spironolactone in cats with heart failure secondary to cardiomyopathy already treated with furosemide and an angiotensin-converting enzyme inhibitor...
December 22, 2017: Journal of Veterinary Cardiology: the Official Journal of the European Society of Veterinary Cardiology
https://www.readbyqxmd.com/read/29275380/double-hit-a-unique-case-of-resistant-hypertension
#18
Kristen Elizabeth DeCarlo, Nidhi Agrawal
A middle-aged woman with obesity, hyperlipidaemia and diet-controlled diabetes was referred for resistant hypertension. Her blood pressure (BP) was uncontrolled on five medications, including a diuretic. Physical exam revealed a systolic ejection murmur, and ECHO demonstrated moderate hypertrophy. Laboratory examination revealed elevated aldosterone level (20.7 ng/dL) and elevated aldosterone:renin ratio (41.4 (ng/dL)/(ng/mL/h)), meeting criteria for primary aldosteronism (PA), and confirmed by saline infusion testing...
December 22, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29249599/analysis-of-postoperative-biochemical-values-and-clinical-outcomes-after-adrenalectomy-for-primary-aldosteronism
#19
Andrew J Swearingen, Bora Kahramangil, Rosebel Monteiro, Vikram Krishnamurthy, Judy Jin, Joyce Shin, Allan Siperstein, Eren Berber
BACKGROUND: Primary aldosteronism causes hypertension and hypokalemia and is often surgically treatable. Diagnosis includes elevated plasma aldosterone, suppressed plasma renin activity, and elevated aldosterone renin ratio. Adrenalectomy improves hypertension and hypokalemia. Postoperative plasma aldosterone and plasma renin activity may be useful in documenting cure or failure. METHOD: A retrospective analysis of patients who underwent adrenalectomy for primary aldosteronism from 2010 to 2016 was performed, analyzing preoperative and postoperative plasma aldosterone, plasma renin activity, hypertension, and hypokalemia...
December 14, 2017: Surgery
https://www.readbyqxmd.com/read/29244537/role-of-renin-angiotensin-aldosterone-system-on-short-term-blood-pressure-variability-in-hypertensive-patients
#20
Minako Inoue, Kiyoshi Matsumura, Yoshie Haga, Yasuo Kansui, Kenichi Goto, Toshio Ohtsubo, Takanari Kitazono
The relationship between the renin-angiotensin aldosterone system and short-term blood pressure variability has not been well elucidated. Here, we investigated whether blood pressure variability determined by ambulatory blood pressure monitoring differed among patients with primary aldosteronism (PA), renovascular hypertension (RVHT), and essential hypertension (EHT). We examined 25 patients with PA, 28 patients with RVHT, and 18 patients with EHT. Ambulatory blood pressure monitoring was conducted in all patients...
December 15, 2017: Clinical and Experimental Hypertension: CHE
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