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Atrial natriuretic factor

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https://www.readbyqxmd.com/read/27918330/preoperative-echocardiographic-indices-of-diastolic-dysfunction-and-brain-natriuretic-peptide-in-predicting-postoperative-atrial-fibrillation-after-noncardiac-surgery
#1
Oren Brecher, Harleena Gulati, Nancy Roistacher, Hao Zhang, Weiji Shi, Howard T Thaler, David Amar
BACKGROUND: We have shown previously that either echocardiographic indices of diastolic dysfunction or increased preoperative brain natriuretic peptide (BNP) predict postoperative atrial fibrillation (POAF). Because these 2 predictors of POAF have not been evaluated together, our goal was to further elucidate their concurrent role in patients undergoing noncardiac thoracic surgery. METHODS: We retrospectively identified 191 patients who had a preoperative transthoracic echocardiogram and serum BNP level collected as part of routine care before major lung or esophageal resection...
December 1, 2016: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/27908653/molecular-changes-in-children-with-heart-failure-undergoing-left-ventricular-assist-device-therapy
#2
Elizabeth Medina, Carmen C Sucharov, Penny Nelson, Shelley D Miyamoto, Brian L Stauffer
OBJECTIVE: To determine whether left ventricular assist device (LVAD) treatment in children with heart failure would result in the modification of molecular pathways involved in heart failure pathophysiology. STUDY DESIGN: Forty-seven explanted hearts from children were studied (16 nonfailing control, 20 failing, and 11 failing post-LVAD implantation [F-LVAD]). Protein expression and phosphorylation states were determined by receptor binding assays and Western blots...
November 29, 2016: Journal of Pediatrics
https://www.readbyqxmd.com/read/27896626/cheyne-stokes-respiration-during-wakefulness-in-patients-with-chronic-heart-failure
#3
Wolfram Grimm, Karl Kesper, Werner Cassel, Nina Timmesfeld, Olaf Hildebrandt, Ulrich Koehler
PURPOSE: Cheyne-Stokes respiration (CSR) during sleep has been studied extensively in patients with chronic heart failure (CHF). Prevalence and prognostic significance of CSR during wakefulness in CHF, however, are largely unknown. METHODS: CSR during wakefulness with an apnea-hypopnea cut-off ≥5/h and moderate to severe CSR with an apnea-hypopnea cutoff ≥15/h were analyzed using polysomnographic recordings in 267 patients with stable CHF with reduced left ventricular (LV) ejection fraction at our institution...
November 28, 2016: Sleep & Breathing, Schlaf & Atmung
https://www.readbyqxmd.com/read/27884747/novel-function-of-%C3%AE-1d-l-type-calcium-channel-in-the-atria
#4
Ujala Srivastava, Ademuyiwa S Aromolaran, Frank Fabris, Deana Lazaro, John Kassotis, Yongxia Qu, Mohamed Boutjdir
Ca entry through atrial L-type Calcium channels (α1C and α1D) play an important role in muscular contraction, regulation of gene expression, and release of hormones including atrial natriuretic peptide (ANP), and brain natriuretic peptide (BNP). α1D Ca channel is exclusively expressed in atria, and has been shown to play a key role in the pathogenesis of atrial fibrillation. Recent data have shown that the small conductance calcium-activated potassium channel, SK4 is also atrial specific and also contributes prominently to the secretion of ANP and BNP...
November 22, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27884008/left-ventricular-plication-reduces-wall-stress-and-cardiomyocyte-hypertrophy-in-a-rat-model-of-ischemic-cardiomyopathy
#5
Hidetsugu Asai, Yasushige Shingu, Tomoji Yamakawa, Haruki Niwano, Satoru Wakasa, Tomonori Ooka, Hiroki Kato, Tsuyoshi Tachibana, Yoshiro Matsui
BACKGROUND: The indications of left-ventricular plication (LVP) are controversial, although several studies have reported favorable outcomes in heart failure patients. The aim of this study was to assess left-ventricular (LV) wall stress and myocardial remodeling after LVP in a rat model of myocardial infarction (MI). METHODS: Sixteen rats underwent LVP by excluding the LV anterior wall scar 4 weeks after ligation of the left anterior descending artery. After 4 weeks, LV wall stress was assessed using transthoracic echocardiography and an LV catheter...
November 25, 2016: European Surgical Research. Europäische Chirurgische Forschung. Recherches Chirurgicales Européennes
https://www.readbyqxmd.com/read/27876310/impact-of-atrial-natriuretic-peptide-value-for-predicting-paroxysmal-atrial-fibrillation-in-ischemic-stroke-patients
#6
Hiroshi Shiroto, Hirofumi Tomita, Joji Hagii, Norifumi Metoki, Ayaka Fujita, Takaatsu Kamada, Koki Takahashi, Shin Saito, Satoko Sasaki, Hiroyasu Hitomi, Satoshi Seino, Yoshiko Baba, Takamitsu Uchizawa, Manabu Iwata, Shigeo Matsumoto, Minoru Yasujima, Ken Okumura
INTRODUCTION: The impact of atrial natriuretic peptide (ANP) value for predicting paroxysmal atrial fibrillation (pAF) in ischemic stroke patients remains uncertain. METHODS: The consecutive 222 ischemic stroke patients (median 77 [IQR 68-83] years old, 93 females) within 48 hours after onset were retrospectively studied. Plasma ANP and brain natriuretic peptide (BNP) levels were simultaneously measured at admission. Of all, 158 patients had no evidence of atrial fibrillation (AF) (sinus rhythm [SR] group), 25 patients had pAF (pAF group), and the other 39 patients had chronic AF (cAF group)...
November 18, 2016: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/27864431/apol1-mediated-cell-injury-involves-disruption-of-conserved-trafficking-processes
#7
Etty Kruzel-Davila, Revital Shemer, Ayala Ofir, Ira Bavli-Kertselli, Ilona Darlyuk-Saadon, Pazit Oren-Giladi, Walter G Wasser, Daniella Magen, Eid Zaknoun, Maya Schuldiner, Adi Salzberg, Daniel Kornitzer, Zvonimir Marelja, Matias Simons, Karl Skorecki
APOL1 harbors C-terminal sequence variants (G1 and G2), which account for much of the increased risk for kidney disease in sub-Saharan African ancestry populations. Expression of the risk variants has also been shown to cause injury to podocytes and other cell types, but the underlying mechanisms are not understood. We used Drosophila melanogaster and Saccharomyces cerevisiae to help clarify these mechanisms. Ubiquitous expression of the human APOL1 G1 and G2 disease risk alleles caused near-complete lethality in D...
November 18, 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/27855811/heart-failure-with-preserved-ejection%C3%A2-fraction-and%C3%A2-atrial-fibrillation-vicious-twins
#8
REVIEW
Dipak Kotecha, Carolyn S P Lam, Dirk J Van Veldhuisen, Isabelle C Van Gelder, Adriaan A Voors, Michiel Rienstra
Heart failure with preserved ejection fraction (HFpEF) and atrial fibrillation (AF) are age-related conditions that are increasing in prevalence, commonly coexist, and share clinical features. This review provides a practical update on the epidemiology, pathophysiology, diagnosis, and management of patients with concomitant HFpEF and AF. Epidemiological studies highlight the close and complex links between HFpEF and AF, the shared risk factors, the high AF occurrence in the natural history of HFpEF, and the independent contribution of each condition to poor outcomes...
November 15, 2016: Journal of the American College of Cardiology
https://www.readbyqxmd.com/read/27847152/endurance-exercise-induced-changes-in-bnp-concentrations-in-cardiovascular-patients-versus-healthy-controls
#9
Vincent L Aengevaeren, Maria T E Hopman, Dick H J Thijssen, Roland R van Kimmenade, Menko-Jan de Boer, Thijs M H Eijsvogels
BACKGROUND: Healthy athletes demonstrated increased B-type natriuretic peptide (BNP) concentrations following exercise, but it is unknown whether these responses are exaggerated in individuals with cardiovascular risk factors (CVRF) or disease (CVD). We compared exercise-induced increases in BNP between healthy controls (CON) and individuals with CVRF or CVD. Furthermore, we aimed to identify predictors for BNP responses. METHODS: Serum BNP concentrations were measured in 191 participants (60±12yrs) of the Nijmegen Marches before (baseline) and immediately after 4 consecutive days of walking exercise (30-50km/day)...
November 8, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27836303/prevalence-and-correlates-of-left-ventricular-diastolic-dysfunction-and-heart-failure-with-preserved-ejection-fraction-in-elderly-community-residents
#10
Xiaotong Cui, Jingmin Zhou, Xuejuan Jin, Jun Zhou, Michael Fu, Kai Hu, Aijun Sun, Junbo Ge
BACKGROUND: Left ventricular diastolic dysfunction (LVDD) is closely related to heart failure with preserved ejection fraction (HFpEF), while the prevalence and correlates of either LVDD or HFpEF in elderly population remain largely unknown. METHODS: The study was performed in 1274 community residents (769 women, aged ≥65years) who participated in the Shanghai Heart Health Study. Demographic, laboratory and echocardiographic data were obtained to analyze correlates of LVDD and HFpEF using univariate and multivariate Logistic analysis...
October 17, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27826974/can-n-terminal-pro-b-type-natriuretic-peptide-neutrophil-to-lymphocyte-ratio-c-reactive-protein-help-to-predict-short-and-long-term-mortality
#11
I Ozmen, Z Karakurt, C Salturk, F Kargin, H B Takir, E Aksoy, R Sari, E Celik, E A Tuncay, E Yildirim, O Y Mocin, N Adiguzel, S Oztas, S Gungor, G Gungor
BACKGROUND: There is limited data about ICU, short and long-term mortality prediction of severe CAP with neutrophil-to-lymphocyte ratio (NLR): N-terminal proB- type natriuretic peptide (NT-proBNP): C-reactive protein (CRP). AIM: Besides the known severity indexes of ICU, can NLR, NT-proBNP, CRP predict ICU, short and long term mortality? METHODS: A retrospective cohort study was carried out in a level III ICU of a tertiary training hospital for chest diseases and thoracic surgery...
2016: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/27811208/application-of-biomarkers-for-risk-stratification-in-patients-with-atrial-fibrillation
#12
REVIEW
Ziad Hijazi, Jonas Oldgren, Agneta Siegbahn, Lars Wallentin
BACKGROUND: Atrial fibrillation is the most common sustained arrhythmia and an important contributor to cardiovascular morbidity and mortality. Several strategies have been proposed for prediction of outcomes and individualization of treatments to better balance the benefits of stroke prevention and risks of bleeding during anticoagulation. CONTENT: The availability of analytically more specific and sensitive methods to measure circulating biomarkers of cellular and organ stress and dysfunction has led to testing of their utility in several cardiovascular conditions...
November 3, 2016: Clinical Chemistry
https://www.readbyqxmd.com/read/27796324/myocyte-specific-enhancer-factor-2c-a-novel-target-gene-of-mir-214-3p-in-suppressing-angiotensin-ii-induced-cardiomyocyte-hypertrophy
#13
Chun-Mei Tang, Fang-Zhou Liu, Jie-Ning Zhu, Yong-Heng Fu, Qiu-Xiong Lin, Chun-Yu Deng, Zhi-Qin Hu, Hui Yang, Xi-Long Zheng, Jian-Ding Cheng, Shu-Lin Wu, Zhi-Xin Shan
The role of microRNA-214-3p (miR-214-3p) in cardiac hypertrophy was not well illustrated. The present study aimed to investigate the expression and potential target of miR-214-3p in angiotensin II (Ang-II)-induced mouse cardiac hypertrophy. In mice with either Ang-II infusion or transverse aortic constriction (TAC) model, miR-214-3p expression was markedly decreased in the hypertrophic myocardium. Down-regulation of miR-214-3p was observed in the myocardium of patients with cardiac hypertrophy. Expression of miR-214-3p was upregulated in Ang-II-induced hypertrophic neonatal mouse ventricular cardiomyocytes...
October 31, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27793890/heart-peptide-hormones-adjunct-and-primary-treatments-of-cancer
#14
REVIEW
David L Vesely
: Four heart hormones, namely atrial natriuretic peptide (ANP), long-acting natriuretic peptide (LANP), vessel dilator and kaliuretic peptide reduce up to 97% of cancer cells in vitro. These four cardiac hormones eliminate up to 80% of human pancreatic adenocarcinomas, two-thirds of human breast carcinomas and up to 86% of human small-cell lung carcinomas growing in athymic mice. ANP given intravenously for 3 hours after 'curative' lung surgery as an adjunct to surgery results in a 2-year relapse-free survival of 91% compared to 75% for those treated with surgery alone...
November 2016: Anticancer Research
https://www.readbyqxmd.com/read/27774267/the-clinical-significance-of-plasma-neopterin-in-heart-failure-with-preserved-left-ventricular-ejection-fraction
#15
Eiichiro Yamamoto, Yoshihiro Hirata, Takanori Tokitsu, Hiroaki Kusaka, Noriaki Tabata, Kenichi Tsujita, Megumi Yamamuro, Koichi Kaikita, Hiroshi Watanabe, Seiji Hokimoto, Toru Maruyama, Hisao Ogawa
AIMS: Although inflammation plays an important role in the pathogenesis of heart failure (HF), the precise pathophysiological role of inflammation in HF with preserved left ventricular ejection fraction (HFpEF) still remains unclear. Hence, we examined the clinical significance of plasma neopterin, an inflammatory biomarker, in HFpEF patients. METHODS AND RESULTS: In the present study, we recruited consecutive HFpEF patients hospitalized in Kumamoto University Hospital, and further measured plasma neopterin by high-performance liquid chromatography and serum derivatives of reactive oxidative metabolites (DROM), a new biomarker of reactive oxygen species...
March 2016: ESC Heart Failure
https://www.readbyqxmd.com/read/27766748/chronic-heart-failure-as-a-state-of-reduced-effectiveness-of-the-natriuretic-peptide-system-implications-for-therapy
#16
Javier Díez
Natriuretic peptides (NPs) promote diuresis, natriuresis and vasodilation in early chronic heart failure (CHF), countering renin-angiotensin-aldosterone system (RAAS) and sympathetic nervous system (SNS) overstimulation. Despite dramatic increases in circulating NP concentrations as CHF progresses, their effects become blunted. Increases in diuresis, natriuresis, and vasodilation after administration of exogenous atrial (ANP) or brain (BNP) natriuretic peptides are attenuated in patients with advanced CHF compared with controls...
October 21, 2016: European Journal of Heart Failure
https://www.readbyqxmd.com/read/27753992/ed-05-4-natriuretic-peptides-metabolic-syndrome-and-hypertension-an-integrated-view
#17
Riccardo Sarzani
Atrial natriuretic peptide (ANP) and B-type natriuretic peptide (BNP) are the cardiac natriuretic peptides (NP), true "cardiometabolic" hormones well known for their renal, endocrine and cardiovascular activities leading to reduced sodium reabsorption and arterial blood pressure. These effects are mainly mediated by the second messenger cGMP that also stimulates lipolysis, mitochondriogenesis and a thermogenic program with potency similar to catecholamines. Two distinct NP receptors modulate the final response to cardiac NP: the cGMP-signaling receptor NPRA and the clearance receptor NPRC...
September 2016: Journal of Hypertension
https://www.readbyqxmd.com/read/27744089/insulin-like-growth-factor-binding-protein-7-as-a-biomarker-of-diastolic-dysfunction-and-functional-capacity-in-heart-failure-with-preserved-ejection-fraction-results-from-the-relax-trial
#18
Parul U Gandhi, Hanna K Gaggin, Margaret M Redfield, Horng H Chen, Susanna R Stevens, Kevin J Anstrom, Marc J Semigran, Peter Liu, James L Januzzi
OBJECTIVES: This study sought to investigate relationships between insulin-like growth factor-binding protein 7 (IGFBP7) and parameters of diastolic function or functional capacity in patients with heart failure and preserved ejection fraction (HFpEF) who were randomized to receive sildenafil or placebo. BACKGROUND: IGFBP7 was previously found to be associated with diastolic function in heart failure with reduced ejection fraction, but it is unclear whether these associations are present in HFpEF...
September 29, 2016: JACC. Heart Failure
https://www.readbyqxmd.com/read/27716961/left-ventricular-stiffness-estimated-by-diastolic-wall-strain-is-associated-with-paroxysmal-atrial-fibrillation-in-structurally-normal-hearts
#19
Shunsuke Uetake, Mitsunori Maruyama, Teppei Yamamoto, Katsuhito Kato, Yasushi Miyauchi, Yoshihiko Seino, Wataru Shimizu
BACKGROUND: Left ventricular (LV) diastolic dysfunction depends on an impaired relaxation and stiffness. Abnormal LV relaxation contributes to the development of atrial fibrillation (AF), but the role of LV stiffness in AF remains unclear. HYPOTHESIS: Diastolic wall strain (DWS), a load-independent, noninvasive direct measure of LV stiffness, correlates with prevalent AF. METHODS: This study included 328 consecutive subjects with structurally normal hearts: 164 paroxysmal AF patients and 164 age- and sex-matched (1:1) controls...
October 7, 2016: Clinical Cardiology
https://www.readbyqxmd.com/read/27707782/functional-improvement-after-successful-catheter-ablation-for-long-standing-persistent-atrial-fibrillation
#20
Martin Fiala, Veronika Bulková, Libor Škňouřil, Renáta Nevřalová, Ondřej Toman, Jaroslav Januška, Jindřich Špinar, Dan Wichterle
AIMS: Identifying patients who benefit from restored sinus rhythm (SR) would optimize the selection of candidates for ablation of long-standing persistent atrial fibrillation (LSPAF). This prospective study sought to identify the hitherto unknown factors associated with global functional improvement after successful radiofrequency catheter ablation of LSPAF. METHODS AND RESULTS: In 171 LSPAF patients (84% of the total consecutive 203 patients) who were examined in SR 12 months after ablation, the individual per cent change from baseline value in maximum oxygen consumption at exercise test (VO2 max), left ventricular ejection fraction (LVEF), N-terminal prohormone of brain natriuretic peptide (NT-proBNP), and five-dimensional descriptive system (EQ-5D) of quality-of-life questionnaire were classified in quartiles by 0 (worse) to 3 (best) grades...
October 5, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
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