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https://www.readbyqxmd.com/read/29426039/prohormones-in-the-early-diagnosis-of-cardiac-syncope
#1
Patrick Badertscher, Thomas Nestelberger, Jeanne du Fay de Lavallaz, Martin Than, Beata Morawiec, Damian Kawecki, Òscar Miró, Beatriz López, F Javier Martin-Sanchez, José Bustamante, Nicolas Geigy, Michael Christ, Salvatore Di Somma, W Frank Peacock, Louise Cullen, François Sarasin, Dayana Flores, Michael Tschuck, Jasper Boeddinghaus, Raphael Twerenbold, Karin Wildi, Zaid Sabti, Christian Puelacher, Maria Rubini Giménez, Nikola Kozhuharov, Samyut Shrestha, Ivo Strebel, Katharina Rentsch, Dagmar I Keller, Imke Poepping, Andreas Buser, Wanda Kloos, Jens Lohrmann, Michael Kuehne, Stefan Osswald, Tobias Reichlin, Christian Mueller
BACKGROUND: The early detection of cardiac syncope is challenging. We aimed to evaluate the diagnostic value of 4 novel prohormones, quantifying different neurohumoral pathways, possibly involved in the pathophysiological features of cardiac syncope: midregional-pro-A-type natriuretic peptide (MRproANP), C-terminal proendothelin 1, copeptin, and midregional-proadrenomedullin. METHODS AND RESULTS: We prospectively enrolled unselected patients presenting with syncope to the emergency department (ED) in a diagnostic multicenter study...
December 14, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29422070/copeptin-levels-and-commonly-used-laboratory-parameters-in-hospitalised-patients-with-severe-hypernatraemia-the-co-med-study
#2
Nicole Nigro, Bettina Winzeler, Isabelle Suter-Widmer, Philipp Schuetz, Birsen Arici, Martina Bally, Julie Refardt, Matthias Betz, Gani Gashi, Sandrine A Urwyler, Lukas Burget, Claudine A Blum, Andreas Bock, Andreas Huber, Beat Müller, Mirjam Christ-Crain
BACKGROUND: Hypernatraemia is common in inpatients and is associated with substantial morbidity. Its differential diagnosis is challenging, and delayed treatment may have devastating consequences. The most important hormone for the regulation of water homeostasis is arginine vasopressin, and copeptin, the C-terminal portion of the precursor peptide of arginine vasopressin, might be a reliable new parameter with which to assess the underlying cause of hypernatraemia. METHODS: In this prospective, multicentre, observational study conducted in two tertiary referral centres in Switzerland, 92 patients with severe hyperosmolar hypernatraemia (Na + > 155 mmol/L) were included...
February 9, 2018: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/29421020/effects-of-hyperoxia-on-myocardial-injury-following-cardioversion-a-randomized-clinical-trial
#3
Kasper Glerup Lauridsen, Anders Sjørslev Schmidt, Kasper Adelborg, Leif Bach, Nete Hornung, Simon Munkesø Jepsen, Charles D Deakin, Hans Rickers, Bo Løfgren
Oxygen has long been assumed beneficial for all ill and injured patients. However, hyperoxia may be harmful and aggravate myocardial injury such as that caused by myocardial infarction. We aimed to investigate if hyperoxia increases myocardial injury following direct current cardioversion compared with room air. METHODS: Patients undergoing elective biphasic cardioversion for atrial fibrillation or atrial flutter were randomized to receive room air or oxygen (10-15 L/min) during the procedure...
February 2018: American Heart Journal
https://www.readbyqxmd.com/read/29403357/surge-of-peripheral-arginine-vasopressin-in-a-rat-model-of-birth-asphyxia
#4
Milla Summanen, Susanne Bäck, Juha Voipio, Kai Kaila
Mammalian birth is accompanied by a period of obligatory asphyxia, which consists of hypoxia (drop in blood O2 levels) and hypercapnia (elevation of blood CO2 levels). Prolonged, complicated birth can extend the asphyxic period, leading to a pathophysiological situation, and in humans, to the diagnosis of clinical birth asphyxia, the main cause of hypoxic-ischemic encephalopathy (HIE). The neuroendocrine component of birth asphyxia, in particular the increase in circulating levels of arginine vasopressin (AVP), has been extensively studied in humans...
2018: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/29371289/elevated-vasopressin-in-pregnant-mice-induces-t-helper-subset-alterations-consistent-with-human-preeclampsia
#5
Sabrina M Scroggins, Donna A Santillan, Jenna M Lund, Jeremy A Sandgren, Lindsay K Krotz, Wendy S Hamilton, Eric J Devor, Heather A Davis, Gary L Pierce, Katherine N Gibson-Corley, Curt D Sigmund, Justin L Grobe, Mark K Santillan
The pathogenesis of preeclampsia, a hypertensive disorder of pregnancy, involves imbalanced T helper (TH) cell populations and resultant changes in pro- and anti-inflammatory cytokine release. Elevated copeptin (an inert biomarker of arginine vasopressin (AVP)), secretion precedes the development of symptoms in preeclampsia in humans, and infusion of AVP proximal to and throughout gestation is sufficient to initiate cardiovascular and renal phenotypes of preeclampsia in wild-type C57BL/6J mice. We hypothesize that AVP infusion in wild-type mice is sufficient to induce the immune changes observed in human preeclampsia...
January 25, 2018: Clinical Science (1979-)
https://www.readbyqxmd.com/read/29364700/angiotensin-at1a-receptors-expressed-in-vasopressin-producing-cells-of-the-supraoptic-nucleus-contribute-to-the-osmotic-control-of-vasopressin
#6
Jeremy A Sandgren, Danny W Linggonegoro, Shao Yang Zhang, Sarah A Sapouckey, Kristin E Claflin, Nicole A Pearson, Mariah R Leidinger, Gary L Pierce, Mark K Santillan, Katherine N Gibson-Corley, Curt D Sigmund, Justin L Grobe
Angiotensin II (ANG) stimulates the release of arginine vasopressin (AVP) from the neurohypophysis through activation of AT1 receptors within the brain, though it remains unclear whether AT1 receptors expressed on AVP-expressing neurons directly mediate this control. We explored the hypothesis that ANG acts through AT1A receptors expressed directly upon AVP-producing cells to regulate AVP secretion. In-situ hybridization and transgenic mice demonstrated localization of AVP and AT1A mRNA in the supraoptic nucleus (SON) and the paraventricular nucleus (PVN), but co-expression of both AVP and AT1A mRNA was only observed in the SON...
January 24, 2018: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29359279/hypothalamic-pituitary-adrenocortical-axis-activity-in-alcohol-dependent-patients-during-treatment-with-high-dose-baclofen
#7
Olga Geisel, Ludwig Schlemm, Rainer Hellweg, Klaus Wiedemann, Christian A Müller
AIMS: Activity of the hypothalamic-pituitary-adrenocortical (HPA) axis has been reported to be affected in alcohol use disorder (AUD). It has been suggested that pharmacological relapse prevention in AUD might exert its effects partly by modulation of HPA axis activity. Here, we assessed the effects of high-dose treatment with baclofen on HPA axis activity in alcohol-dependent patients within a 24-week randomized, placebo-controlled trial (BACLAD study). METHODS: Plasma levels of copeptin, adrenocorticotropic hormone (ACTH), and cortisol were measured at 3 timepoints in alcohol-dependent patients during the study...
January 22, 2018: Pharmacopsychiatry
https://www.readbyqxmd.com/read/29350536/diagnostic-accuracy-of-functional-imaging-and-biochemical-tests-for-patients-presenting-with-chest-pain-to-the-emergency-department-a-systematic-review-and-meta-analysis
#8
Mario Iannaccone, Sebastiano Gili, Ovidio De Filippo, Salvatore D'Amico, Marco Gagliardi, Maurizio Bertaina, Silvia Mazzilli, Sara Rettegno, Federica Bongiovanni, Paolo Gatti, Fabrizio Ugo, Giacomo G Boccuzzi, Salvatore Colangelo, Silvia Prato, Claudio Moretti, Maurizio D'Amico, Patrizia Noussan, Roberto Garbo, David Hildick-Smith, Fiorenzo Gaita, Fabrizio D'Ascenzo
BACKGROUND: Non-invasive ischaemia tests and biomarkers are widely adopted to rule out acute coronary syndrome in the emergency department. Their diagnostic accuracy has yet to be precisely defined. METHODS: Medline, Cochrane Library CENTRAL, EMBASE and Biomed Central were systematically screened (start date 1 September 2016, end date 1 December 2016). Prospective studies (observational or randomised controlled trial) comparing functional/imaging or biochemical tests for patients presenting with chest pain to the emergency department were included...
January 1, 2018: European Heart Journal. Acute Cardiovascular Care
https://www.readbyqxmd.com/read/29343179/b-type-natriuretic-peptide-for-prediction-of-incident-clinically-significant-abdominal-aortic-aneurysm-a-population-based-prospective-study
#9
Stefan Acosta, Anders Gottsäter, Gunnar Engström, Olle Melander, Moncef Zarrouk, Peter M Nilsson, J Gustav Smith
Pathogenesis of abdominal aortic aneurysm (AAA) is unclear. The aim of this study was to evaluate inflammatory and hemodynamic plasma biomarkers as predictors for AAA in the prospective longitudinal cohort of middle-aged individuals from the cardiovascular cohort of the Malmö Diet and Cancer Study ( n=5551; 1991-94). C-reactive protein, cystatin C, copeptin, N-terminal pro-B-type natriuretic peptide (N-BNP), midregional pro-atrial natriuretic peptide (MR-proANP) and conventional risk factors at baseline were measured in patients with incident AAA during follow-up and compared to individuals without a diagnosis of AAA...
January 1, 2018: Vascular Medicine
https://www.readbyqxmd.com/read/29334742/-diagnostic-and-prognostic-biomarkers-in-acute-coronary-syndrome
#10
Petr Kuběna, Jindřich Špinar, Milan Dastych, Petr Lokaj, Jiří Pařenica
Acute myocardial infarction (AMI) is an important cause of mortality and morbidity worldwide. Early diagnostics of this disease helps in the appropriate treatment of patients. Great attention is paid to the diagnostic and risk stratification of patients according to circulating biomarkers. There are a lot of scientific publications describing this topic. The aim of this article is to provide a comprehensive overview of the most important and most examined biomarkers in acute coronary syndrome. Meanwhile troponin takes a fundamental place for AMI diagnostic (mostly the high-sensitive methods) in preference to MB-fraction of creatine kinase and myoglobin...
2018: Vnitr̆ní Lékar̆ství
https://www.readbyqxmd.com/read/29295870/effect-of-liraglutide-on-atrial-natriuretic-peptide-adrenomedullin-and-copeptin-in-pcos
#11
Signe Frøssing, Malin Nylander, Caroline Kistorp, Sven O Skouby, Jens Faber
CONTEXT: Women with polycystic ovary syndrome (PCOS) have an increased risk of cardiovascular disease (CVD), and biomarkers can be used to detect early subclinical CVD. Midregional-pro-adrenomedullin (MR-proADM), midregional-pro-atrial natriuretic peptide (MR-proANP) and copeptin are all associated with CVD and part of the delicate system controlling fluid and hemodynamic homeostasis through vascular tonus and diuresis. The GLP-1 receptor agonist liraglutide, developed for treatment of type 2 diabetes (T2D), improves cardiovascular outcomes in patients with T2D including a decrease in particular MR-proANP...
January 2018: Endocrine Connections
https://www.readbyqxmd.com/read/29242971/effects-of-hydration-on-plasma-copeptin-glycemia-and-gluco-regulatory-hormones-a-water-intervention-in-humans
#12
Sofia Enhörning, Irina Tasevska, Ronan Roussel, Nadine Bouby, Margaretha Persson, Philippe Burri, Lise Bankir, Olle Melander
PURPOSE: High plasma copeptin, a marker of vasopressin, predicts diabetes mellitus. We tested if copeptin could be suppressed by increased water intake in healthy individuals, and if a water-induced change in copeptin was accompanied by altered concentrations of glucose, insulin or glucagon. METHODS: Thirty-nine healthy individuals underwent, in random order, 1 week of high water intake (3 L/day on top of habitual intake) and 1 week of normal (habitual) fluid intake (control)...
December 14, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/29241593/rapid-differential-diagnosis-of-diabetes-insipidus-in-a-7-month-old-infant-the-copeptin-approach
#13
J Vergier, J Fromonot, A Alvares De Azevedo Macedo, A Godefroy, E Marquant, R Guieu, M Tsimaratos, R Reynaud
INTRODUCTION: Diabetes insipidus is characterized by hypoosmotic polyuria related to deficiency of arginine-vasopressin (AVP) secretion (central diabetes insipidus, CDI) or renal insensitivity to AVP (nephrogenic diabetes insipidus, NDI). The water deprivation test with assessment of AVP activity is currently the gold standard for differential diagnosis in patients presenting polyuria-polydipsia syndrome. Nevertheless, it can be dangerous without proper surveillance and its interpretation may be challenging...
January 2018: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/29238569/transient-cardiac-dysfunction-but-elevated-cardiac-and-kidney-biomarkers-24%C3%A2-h-following-an-ultra-distance-running-event-in-mexican-tarahumara
#14
Dirk L Christensen, Diana Espino, Rocío Infante-Ramírez, Mónica S Cervantes-Borunda, Rosa P Hernández-Torres, Antonio E Rivera-Cisneros, Daniel Castillo, Kate Westgate, Dijana Terzic, Soren Brage, Christian Hassager, Jens P Goetze, Jesper Kjaergaard
Background: The Mexican Tarahumara are accustomed to running ultra-distance races. No data exist on the acute physiological changes following ultra-distance running and physiological-biomarker associations in this population. Thus, we aimed to investigate the acute impact (≤ 24 h) on functional and biochemical changes of the cardiac muscle and biochemical changes associated with kidney function following a 63-km ultra-distance race with an altitude difference of 1800 m in Mexican Tarahumara athletes...
2017: Extreme Physiology & Medicine
https://www.readbyqxmd.com/read/29235050/copeptin-and-insulin-resistance-effect-modification-by-age-and-11-%C3%AE-hsd2-activity-in-a-population-based-study
#15
S Canivell, M Mohaupt, D Ackermann, M Pruijm, I Guessous, G Ehret, G Escher, A Pechère-Bertschi, B Vogt, O Devuyst, M Burnier, P-Y Martin, B Ponte, M Bochud
PURPOSE: Arginine vasopressin (AVP) may be involved in metabolic syndrome (MetS) by altering liver glycogenolysis, insulin and glucagon secretion, and pituitary ACTH release. Moreover, AVP stimulates the expression of 11β-hydroxysteroid-dehydrogenase-type 2 (11β-HSD2) in mineralocorticosteroid cells. We explored whether apparent 11β-HSD2 activity, estimated using urinary cortisol-to-cortisone ratio, modulates the association between plasma copeptin, as AVP surrogate, and insulin resistance/MetS in the general adult population...
December 12, 2017: Journal of Endocrinological Investigation
https://www.readbyqxmd.com/read/29215538/cortisol-outperforms-novel-cardiovascular-inflammatory-and-neurohumoral-biomarkers-in-the-prediction-of-outcome-in-acute-pancreatitis
#16
Christian A Nebiker, Sebastian Staubli, Juliane Schäfer, Roland Bingisser, Mirjam Christ-Crain, Salome Dell-Kuster, Christian Mueller, Karla Scamardi, Carsten T Viehl, Dieter Kolleth, Urs von Holzen, Daniel Oertli, Rachel Rosenthal
OBJECTIVES: The aims of this study were to assess whether copeptin, pro-atrial natriuretic peptide, proadrenomedullin, and cortisol are associated with disease severity in patients with acute pancreatitis (AP) and to compare their ability in predicting organ failure or death. METHODS: From April 2011 to January 2015, 142 patients with AP were included in this prospective single-center study and observed for 4 days. Disease severity was rated by the Atlanta 1992 and 2012 criteria and organ failure by the modified Marshall score...
January 2018: Pancreas
https://www.readbyqxmd.com/read/29190613/n-terminal-prohormone-of-brain-natriuretic-peptide-but-not-c-terminal-pre-pro-vasopressin-copeptin-level-is-associated-with-the-response-to-antihypertensive-therapy-in-haemodialysis-patients
#17
Katarzyna Wyskida, Joanna Ficek, Rafał Ficek, Dagmara Adamska, Patrycja Jędrzejowska, Jarosław Wajda, Dariusz Klein, Joanna Witkowicz, Sylwia Rotkegel, Urszula Spiechowicz-Zatoń, Joanna Kocemba-Dyczek, Jarosław Ciepał, Andrzej Więcek, Magdalena Olszanecka-Glinianowicz, Jerzy Chudek
BACKGROUND/AIMS: Volume overload, frequently clinically asymptomatic is considered as a causative factor limiting the effectiveness of antihypertensive therapy in haemodialysis (HD) patients. Therefore, the aim of this study was to assess plasma levels of N-terminal fragment of the prohormone brain natriuretic peptide (NT-proBNP) and a C-terminal portion of the precursor of vasopressin (CT-proAVP, copeptin), surrogate markers of volume overload in HD patients in relation to the number of antihypertensive drugs used in the hypertension treatment...
November 30, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/29173679/cardiac-biomarkers-in-emergency-care
#18
REVIEW
Richard Body, Cara Hendry
This article critically reviews the latest evidence to guide the use of biomarkers for the diagnosis of acute coronary syndromes in practice. It shows how modern cardiac troponin assays can enable diagnoses to be ruled in or ruled out with a single blood test, with many more diagnoses confirmed or refuted in as little as 1 hour later. Finally, this article appraises the latest evidence for other cardiac biomarkers, such as heart-type fatty acid-binding protein and copeptin.
February 2018: Cardiology Clinics
https://www.readbyqxmd.com/read/29154425/influence-of-renal-impairment-on-aldosterone-status-calcium-metabolism-and-vasopressin-activity-in-outpatients-with-systolic-heart-failure
#19
Helle Bosselmann, Niels Tonder, György Sölétormos, Freja Gaborit, Kasper Rossing, Kasper Iversen, Jens Peter Goetze, Finn Gustafsson, Morten Schou
AIMS: Renal dysfunction (RD) is associated with increased morbidity and mortality in heart failure (HF). At present, no specific treatment for patients with RD, to prevent progression of HF, has been developed. How different hormone axes-and thereby potential treatment options-are affected by RD in HF warrants further investigations. METHODS AND RESULTS: Patients with left ventricular ejection fraction (LVEF) <0.45% were enrolled prospectively from an outpatient HF clinic...
November 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/29148047/plasma-copeptin-levels-in-patients-with-restless-legs-syndrome
#20
S Topaloglu Tuac, S Ozben, M Koseoglu Bitnel, A Koksal, E Kucuksayan, A Hanikoğlu, T Ozben
OBJECTIVES: Copeptin, the C-terminal fragment of antidiuretic hormone, is a new biomarker that has been found to be elevated in several disorders and could be related with prognosis. This study aimed to compare plasma copeptin levels in patients with restless legs syndrome (RLS) with healthy individuals and to investigate whether plasma copeptin levels were associated with the severity of disease. MATERIAL AND METHODS: 41 patients with primary RLS, who were followed in Bakirkoy Psychiatry and Neurology Research and Training Hospital and 41 age- and sex-matched healthy individuals were included into the study...
November 17, 2017: Acta Neurologica Scandinavica
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