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Aldosterone producing adenoma

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https://www.readbyqxmd.com/read/28332723/evidence-for-persistent-organochlorine-pollutants-in-the-human-adrenal-cortex
#1
Enza Fommei, Roberta Turci, Andrea Ripoli, Silvana Balzan, Fabrizio Bianchi, Luca Morelli, Alessio Coi
Environmental pollutants may act as endocrine disruptors in animals. Organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) enter the food chain and may accumulate in the fatty animal tissues, including adrenals. To our knowledge, no previous study has investigated their presence in the human normal adrenal (NA) cortex and aldosterone-producing adenomas (APA). Surgical fragments of APA from 11 patients and NA from 8 kidney donors were analyzed for 16 PCBs congeners and 10 OCPs. A Matrix Solid-Phase Dispersion (MSPD) method for simultaneous determination of the target compounds in cortex homogenates was developed...
March 23, 2017: Journal of Applied Toxicology: JAT
https://www.readbyqxmd.com/read/28293914/a-late-diagnosis-of-primary-aldosteronism
#2
Francesco Zorzi, Oliviero Olivieri, Paolo Brazzarola, Francesca Pizzolo
We report the case of a 41-year-old male patient with juvenile onset refractory hypertension while taking four drugs including a diuretic. Fourteen years before he underwent a complete investigation for secondary hypertension (including the aldosterone to renin ratio-ARR) that was negative. Since that, hypertension control gradually worsened, hypertensive organ damage aggravated and hypokalemia developed in spite of ACE inhibitor treatment. At the re-evaluation ARR was elevated, and the further workup for primary aldosteronism demonstrated an unilateral aldosterone producing adenoma that was surgically removed, with subsequent optimal blood pressure control with two anti-hypertensive drugs...
March 14, 2017: High Blood Pressure & Cardiovascular Prevention: the Official Journal of the Italian Society of Hypertension
https://www.readbyqxmd.com/read/28276424/-11-c-metomidate-pet-ct-scanning-can-identify-aldosterone-producing-adenomas-after-unsuccessful-lateralisation-with-ct-mri-and-adrenal-venous-sampling
#3
J Ouyang, R Hardy, M Brown, T Helliwell, M Gurnell, D J Cuthbertson
No abstract text is available yet for this article.
March 9, 2017: Journal of Human Hypertension
https://www.readbyqxmd.com/read/28248752/radiofrequency-ablation-treatment-for-aldosterone-producing-adenomas
#4
Barry A Sacks, Ari C Sacks, Salomao Faintuch
PURPOSE OF REVIEW: To review the current status of radiofrequency ablation as a primary treatment for hyperfunctioning adrenal nodules, predominantly aldosterone-producing adenomas (APAs). RECENT FINDINGS: Radiofrequency ablation is an established treatment for focal benign and malignant lesions, including metastatic disease to the adrenal gland. Hyperaldosteronism is the leading cause of secondary hypertension with up to 80% due to APA, statistically the most common functioning adrenal nodule...
February 28, 2017: Current Opinion in Endocrinology, Diabetes, and Obesity
https://www.readbyqxmd.com/read/28222463/changes-in-body-mass-index-in-pheochromocytoma-patients-following-adrenalectomy
#5
Ariadni Spyroglou, Christian Adolf, Stefanie Hahner, Marcus Quinkler, Roland Ladurner, Martin Reincke, Felix Beuschlein
Catecholamine excess from pheochromocytoma results in cardiovascular symptoms such as arterial hypertension and tachycardia and induces metabolic alterations including glucose intolerance and increase in resting metabolic rate. The objective of our study was to investigate the effect of surgical cure of pheochromocytoma on body-mass-index and the correlation of body-mass-index changes to preoperative endocrine parameters. Pheochromocytoma patients from the Munich ENSAT Registry were matched (1:2) for age and gender to patients from the German Conn's Registry, who had undergone surgery for aldosterone-producing-adenomas...
February 21, 2017: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
https://www.readbyqxmd.com/read/28111697/assessment-of-the-aldosteronona-resolution-score-as-a-predictive-resolution-score-of-hypertension-after-adrenalectomy-for-aldosteronoma-in-french-patients
#6
Ludwig Pasquier, Medhi Kirouani, Florian Fanget, Claire Nomine, Cécile Caillard, Vincent Arnault, Jean-Baptiste Finel, Niki Christou, Muriel Mathonnet, Christophe Trésallet, Antoine Hamy, Loïc de Calan, Laurent Brunaud, Fabrice Menegaux, Jean Christophe Lifante, Jean Benoit Hardouin, Delphine Drui, Éric Mirallié, Claire Blanchard
PURPOSE: Aldosteronoma Resolution Score (ARS) is a predictive score for cure of hypertension after adrenalectomy for hyperaldosteronism and has been validated in American patients. The aim of the study was to validate this score in a French population. METHOD: Data concerning patients operated from 2002 to 2015 in 7 French University Hospitals were retrospectively collected. Diagnosis of Aldosterone-producing adenoma (APA) was confirmed with clinical and biochemical hyperaldosteronism and adrenal nodule on CT scan...
March 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28111382/aldosterone-excess-may-inhibit-insulin-secretion-a-comparative-study-on-glucose-metabolism-pre-and-post-adrenalectomy-in-patients-with-primary-aldosteronism
#7
Yuya Tsurutani, Chiho Sugisawa, Akiko Ishida, Kosuke Inoue, Jun Saito, Masao Omura, Shoichiro Nagasaka, Tetsuo Nishikawa
Conflicting data have been published on the effects of aldosterone excess on glucose metabolism. Specifically, there are limited data on whether adrenalectomy in patients with aldosterone-producing adenomas (APA) can improve glucose metabolism. In this study we evaluated changes in glucose metabolism, before and after surgery for APA. The subjects were 61 patients treated with unilateral adrenalectomy, localized by adrenal venous sampling. A 75g-oral glucose tolerance test (OGTT) was performed before and 1 year after adrenalectomy...
January 20, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28102204/the-prevalence-of-ctnnb1-mutations-in-primary-aldosteronism-and-consequences-for-clinical-outcomes
#8
Vin-Cent Wu, Shuo-Meng Wang, Shih-Chieh Jeff Chueh, Shao-Yu Yang, Kuo-How Huang, Yen-Hung Lin, Jian-Jhong Wang, Rory Connolly, Ya-Hui Hu, Celso E Gomez-Sanchez, Kang-Yung Peng, Kwan-Dun Wu
Constitutive activation of the Wnt pathway/β-catenin signaling may be important in aldosterone-producing adenoma (APA). However, significant gaps remain in our understanding of the prevalence and clinical outcomes after adrenalectomy in APA patients harboring CTNNB1 mutations. The molecular expression of CYP11B2 and gonadal receptors in adenomas were also explored. Adenomas from 219 APA patients (95 men; 44.2%; aged 50.5 ± 11.9 years) showed a high rate of somatic mutations (n = 128, 58.4%). The majority of them harbored KCNJ5 mutations (n = 116, 52...
January 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/27975056/is-laparoendoscopic-single-site-adrenalectomy-a-feasible-alternative-in-treating-aldosterone-producing-adenoma
#9
Che-Hsiung Wu, Leay-Kiaw Er, Ya-Hui Hu, Chia Da Lin, Shih-Chieh Chueh, Yao-Chou Tsai
Objective. To compare laparoendoscopic single-site (LESS) and conventional multiport adrenalectomy in patients with aldosterone-producing adenoma (APA). Material and Methods. We retrospectively reviewed patients who had been clinically confirmed with unilateral APA and who underwent LESS or multiport adrenalectomy between 2009 and 2014. Perioperative data were obtained for all patients. Blood pressure and the levels of serum aldosterone, renin, and potassium were checked periodically. Results. We identified 45 APA patients in the LESS group and 71 in the multiport group...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27974594/complement-mediated-inhibition-of-adiponectin-regulates-perivascular-inflammation-and-vascular-injury-in-hypertension
#10
Cheng-Chao Ruan, Yu Ma, Qian Ge, Yan Li, Li-Min Zhu, Ying Zhang, Ling-Ran Kong, Qi-Hong Wu, Fanghong Li, Lixian Cheng, Allan Z Zhao, Ding-Liang Zhu, Ping-Jin Gao
Perivascular adipose tissue (PVAT)-derived adiponectin (APN) is a secreted adipokine that protects against hypertension-related cardiovascular injury. However, the regulation of APN expression in hypertension remains to be explored. In this study, we demonstrated that down-regulation of APN was associated with complement activation in the PVAT of desoxycorticosterone acetate (DOCA)-salt hypertensive mice. Complement 3-deficient hypertensive mice were protected from ANP decrease in the PVAT. APN deficiency blockaded the protective effects of complement inhibition against hypertensive vascular injury...
December 14, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27917596/plasma-adrenocorticotropic-hormone-but-not-aldosterone-is-correlated-with-blood-pressure-in-patients-with-aldosterone-producing-adenomas
#11
Hiroki Kobayashi, Akira Haketa, Ueno Takahiro, Hiromasa Otsuka, Sho Tanaka, Yoshinari Hatanaka, Yukihiro Ikeda, Masanori Abe, Noboru Fukuda, Masayoshi Soma
Although plasma aldosterone concentration (PAC) varies depending on primary aldosteronism (PA) subtypes, patients with different subtypes may have similar blood pressure (BP). The authors hypothesized that hormones other than aldosterone might influence BP in PA patients. A total of 73 PA cases, including 30 cases of aldosterone-producing adenomas (APAs), 29 cases of bilateral hyperaldosteronism, and 24 control cases of essential hypertension were enrolled retrospectively. The authors examined the levels of aldosterone, cortisol, renin, and adrenocorticotropic hormone (ACTH) measured at 12 am, 6 am, 12 pm, and 6 pm and BP in the early morning (6 am to 7 am), late morning (9 am to 11 am), and early evening (5 pm to 7 pm)...
December 5, 2016: Journal of Clinical Hypertension
https://www.readbyqxmd.com/read/27864864/genetics-of-adrenocortical-tumours
#12
T Åkerström, T Carling, F Beuschlein, P Hellman
The recently available genomic sequencing techniques have led to breakthroughs in understanding of the underlying genetic mechanisms in adrenocortical tumours. Disease-causing mutations have been described for aldosterone-producing adenomas, cortisol-producing adenomas and adrenocortical carcinomas. Further, knowledge gained from transcriptome analyses and methylation arrays has provided new insights into the development of these tumours. Elucidation of the genomic landscape of adrenocortical tumours and improved techniques may in the future be useful for early diagnosis through the detection of mutated DNA in the circulation...
December 2016: Journal of Internal Medicine
https://www.readbyqxmd.com/read/27862984/of-channels-and-pumps-different-ways-to-boost-the-aldosterone
#13
REVIEW
S Bandulik
The mineralocorticoid aldosterone is a major factor controlling the salt and water balance and thereby also the arterial blood pressure. Accordingly, primary aldosteronism (PA) characterized by an inappropriately high aldosterone secretion is the most common form of secondary hypertension. The physiological stimulation of aldosterone synthesis in adrenocortical glomerulosa cells by angiotensin II and an increased plasma K(+) concentration depends on a membrane depolarization and an increase in the cytosolic Ca(2+) activity...
November 15, 2016: Acta Physiologica
https://www.readbyqxmd.com/read/27862274/risk-of-fracture-in-primary-aldosteronism-a-population-based-cohort-study
#14
Vin-Cent Wu, Chia-Hui Chang, Cheng-Yi Wang, Yen-Hung Lin, Tze-Wah Kao, Po-Chih Lin, Tzong-Shinn Chu, Yuan-Shian Chang, Likwang Chen, Kwan-Dun Wu, Shih-Chieh Jeff Chueh
Primary aldosteronism (PA) is associated with increased urinary calcium excretion and osteoporosis prevalence. We studied the long-term effect of hyperaldosterone on fracture risk and possible risk mitigation via treatments, by comparing PA patients and their essential hypertension (EH) counterparts extracted by propensity score match. We used a longitudinal population database from the Taiwan National Health Insurance, and used a validated algorithm to identify PA patients diagnosed in 1997-2010. Our sample included 2533 PA patients, including 921 patients with aldosterone-producing adenoma (APA)...
November 10, 2016: Journal of Bone and Mineral Research: the Official Journal of the American Society for Bone and Mineral Research
https://www.readbyqxmd.com/read/27853054/expression-of-cyp11b2-in-aldosterone-producing-adrenocortical-adenoma-regulatory-mechanisms-and-clinical-significance
#15
Yasuhiro Nakamura, Yuto Yamazaki, Yuta Tezuka, Fumitoshi Satoh, Hironobu Sasano
Aldosterone-producing adrenocortical adenoma (APA) is responsible for the majority of cases clinically diagnosed as primary aldosteronism. Aldosterone synthase (CYP11B2) is one of the enzymes that play essential roles in aldosterone synthesis and is involved in the pathogenesis of APA. Recent studies have demonstrated that various factors and regulators influence the expression and function of CYP11B2 in APA. In particular, somatic mutations, such as gain-of-function and loss-of-function mutations, have been identified in several genes, each of which encodes a pivotal protein that affects the calcium signaling pathway, the expression of CYP11B2, and aldosterone production...
2016: Tohoku Journal of Experimental Medicine
https://www.readbyqxmd.com/read/27834080/cardiac-dysfunction-in-association-with-increased-inflammatory-markers-in-primary-aldosteronism
#16
Jung Soo Lim, Sungha Park, Sung Il Park, Young Taik Oh, Eunhee Choi, Jang Young Kim, Yumie Rhee
BACKGROUND: Oxidative stress in primary aldosteronism (PA) is thought to worsen aldosterone-induced damage by activating proinflammatory processes. Therefore, we investigated whether inflammatory markers associated with oxidative stress is increased with negative impacts on heart function as evaluated by echocardiography in patients with PA. METHODS: Thirty-two subjects (mean age, 50.3±11.0 years; 14 males, 18 females) whose aldosterone-renin ratio was more than 30 among patients who visited Severance Hospital since 2010 were enrolled...
December 2016: Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27777363/transcriptome-pathway-analysis-of-pathological-and-physiological-aldosterone-producing-human-tissues
#17
Junhua Zhou, Brian Lam, Sudeshna G Neogi, Giles S H Yeo, Elena A B Azizan, Morris J Brown
Primary aldosteronism is present in ≈10% of hypertensives. We previously performed a microarray assay on aldosterone-producing adenomas and their paired zona glomerulosa and fasciculata. Confirmation of top genes validated the study design and functional experiments of zona glomerulosa selective genes established the role of the encoded proteins in aldosterone regulation. In this study, we further analyzed our microarray data using AmiGO 2 for gene ontology enrichment and Ingenuity Pathway Analysis to identify potential biological processes and canonical pathways involved in pathological and physiological aldosterone regulation...
December 2016: Hypertension
https://www.readbyqxmd.com/read/27776721/primary-aldosteronism-diagnosis-and-management
#18
REVIEW
Geeta Gyamlani, Carol M Headley, Adnan Naseer, Ganpat S Valaulikar, Stephen A Geraci
Primary aldosteronism (PA) is an important and commonly unrecognized cause of secondary hypertension. Idiopathic hyperaldosteronism and aldosterone-producing adenomas account for more than 95% of PA and are characterized, respectively, by bilateral or unilateral involvement of the adrenal glands. When there is suspicion for the presence of PA, a plasma aldosterone to renin ratio should be obtained initially. Localization to determine adrenal gland involvement is done by imaging, with computerized tomography or magnetic resonance imaging...
October 2016: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/27759849/long-term-results-after-ct-guided-percutaneous-ethanol-ablation-for-the-treatment-of-hyperfunctioning-adrenal-disorders
#19
Nathan Elie Frenk, Fernando Sebastianes, Antonio Marcondes Lerario, Maria Candida Barisson Villares Fragoso, Berenice Bilharinho Mendonca, Marcos Roberto de Menezes
OBJECTIVES: To evaluate the safety and long-term efficacy of computed tomography-guided percutaneous ethanol ablation for benign primary and secondary hyperfunctioning adrenal disorders. METHOD: We retrospectively evaluated the long-term results of nine patients treated with computed tomography-guided percutaneous ethanol ablation: eight subjects who presented with primary adrenal disorders, such as pheochromocytoma, primary macronodular adrenal hyperplasia and aldosterone-producing adenoma, and one subject with Cushing disease refractory to conventional treatment...
October 1, 2016: Clinics
https://www.readbyqxmd.com/read/27754862/hypomethylation-of-cyp11b2-in-aldosterone-producing-adenoma
#20
Yoko Yoshii, Kenji Oki, Celso E Gomez-Sanchez, Haruya Ohno, Kiyotaka Itcho, Kazuhiro Kobuke, Masayasu Yoneda
The purpose of this study was to evaluate the DNA methylation levels of steroidogenic enzyme genes in aldosterone-producing adenoma (APA) and the effects of gene mutations in APA on the DNA methylation levels. DNA methylation array analysis was conducted using nonfunctioning adrenocortical adenoma (n=12) and APA (n=35) samples, including some with a KCNJ5 mutation (n=21), an ATP1A1 mutation (n=5), and without the known mutations (n=9). The quantitative polymerase chain reaction assay was performed for the detection of CYP11B2 and CYP11B1 expression levels in nonfunctioning adrenocortical adenoma and APA...
December 2016: Hypertension
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