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Natriuretic peptide receptor

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https://www.readbyqxmd.com/read/28901418/profilin%C3%A2-1-contributes-to-cardiac-injury-induced-by-advanced-glycation-end%C3%A2-products-in-rats
#1
Dafeng Yang, Weiwei Liu, Liping Ma, Ya Wang, Jing Ma, Minna Jiang, Xu Deng, Fang Huang, Tianlun Yang, Meifang Chen
Cardiac injury, including hypertrophy and fibrosis, induced by advanced glycation end products (AGEs) has an important function in the onset and development of diabetic cardiomyopathy. Profilin‑1, a ubiquitously expressed and multifunctional actin‑binding protein, has been reported to be an important mediator in cardiac hypertrophy and fibrosis. However, whether profilin‑1 is involved in AGE‑induced cardiac hypertrophy and fibrosis remains to be determined. Therefore, the present study aimed to investigate the function of profilin‑1 in cardiac injury induced by AGEs...
September 8, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28900772/clathrin-dependent-internalization-signaling-and-metabolic-processing-of-guanylyl-cyclase-natriuretic-peptide-receptor-a
#2
Naveen K Somanna, Indra Mani, Satyabha Tripathi, Kailash N Pandey
Cardiac hormones, atrial and brain natriuretic peptides (ANP and BNP), have pivotal roles in renal hemodynamics, neuroendocrine signaling, blood pressure regulation, and cardiovascular homeostasis. Binding of ANP and BNP to the guanylyl cyclase/natriuretic peptide receptor-A (GC-A/NPRA) induces rapid internalization and trafficking of the receptor via endolysosomal compartments, with concurrent generation of cGMP. However, the mechanisms of the endocytotic processes of NPRA are not well understood. The present study, using (125)I-ANP binding assay and confocal microscopy, examined the function of dynamin in the internalization of NPRA in stably transfected human embryonic kidney-293 (HEK-293) cells...
September 12, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28899838/design-and-evaluation-of-novel-natriuretic-peptide-derivatives-with-improved-pharmacokinetic-and-pharmacodynamic-properties
#3
Naomi Morozumi, Seiji Sato, Sayaka Yoshida, Yuriko Harada, Mayumi Furuya, Yoshiharu Minamitake, Kenji Kangawa
C-type natriuretic peptide (CNP) and its receptor, natriuretic peptide receptor B (NPR-B), are potent positive regulators of endochondral bone growth, making the CNP pathway one of the most promising therapeutic targets for the treatment of growth failure. However, the administration of exogenous CNP is not fully effective, due to its rapid clearance in vivo. Modification of CNP to potentially druggable derivatives may result in increased resistance to proteolytic degradation, longer plasma half-life (T1/2), and better distribution to target tissues...
September 9, 2017: Peptides
https://www.readbyqxmd.com/read/28892130/fgl2-deteriorates-cardiac-function-in-experimental-autoimmune-myocarditis-rats-through-regulation-of-pd-1-and-inflammatory-cytokines
#4
Zhenzhong Zheng, Yinghui Yu, Ratnakar Potla, Yujing Wu, Hao Wu
PD-1 plays an important role in protecting against inflammation and myocyte damage in T cell mediated myocarditis. To understand whether FGL2 can affect the role of PD-1/PD-L1 pathway in experimental autoimmune myocarditis (EAM),we investigated the cardiac function in EAM rats overexpressing FGL2. Overexpression of FGL2 significantly decreased PD-1 and deteriorated cardiac function in autoimmune myocarditis rats. Histopathology revealed increased inflammatory cell infiltrate in EAM-FGL2 rats compared to the control groups (EAM, EAM-GFP, and NC)...
September 11, 2017: Immunology
https://www.readbyqxmd.com/read/28889107/respite-switching-to-riociguat-in-pulmonary-arterial-hypertension-patients-with-inadequate-response-to-phosphodiesterase-5-inhibitors
#5
Marius M Hoeper, Gérald Simonneau, Paul A Corris, Hossein-Ardeschir Ghofrani, James R Klinger, David Langleben, Robert Naeije, Pavel Jansa, Stephan Rosenkranz, Laura Scelsi, Ekkehard Grünig, Carmine Dario Vizza, MiKyung Chang, Pablo Colorado, Christian Meier, Dennis Busse, Raymond L Benza
A proportion of pulmonary arterial hypertension (PAH) patients do not reach treatment goals with phosphodiesterase-5 inhibitors (PDE5i). RESPITE investigated the safety, feasibility and benefit of switching from PDE5i to riociguat in these patients.RESPITE was a 24-week, open-label, multicentre, uncontrolled study. Patients in World Health Organization (WHO) functional class (FC) III, with 6-min walking distance (6MWD) 165-440 m, cardiac index <3.0 L·min(-1)·m(-2) and pulmonary vascular resistance >400 dyn·s·cm(-5) underwent a 1-3 day PDE5i treatment-free period before receiving riociguat adjusted up to 2...
September 2017: European Respiratory Journal: Official Journal of the European Society for Clinical Respiratory Physiology
https://www.readbyqxmd.com/read/28864549/atrial-natriuretic-peptide-anp-affects-stimulus-secretion-coupling-of-pancreatic-%C3%AE-cells
#6
Sabrina Undank, Julia Kaiser, Jelena Sikimic, Martina Düfer, Peter Krippeit-Drews, Gisela Drews
ANP influences glucose homeostasis and possibly acts as a link between the cardiovascular system and metabolism, especially in metabolic disorders like diabetes. The present study aimed to evaluate effects of ANP on β-cell function by the use of a β-cell specific knockout of the ANP receptor with guanylate cyclase activity (βGC-A-KO). ANP augmented insulin secretion at the threshold glucose concentration of 6 mM and decreased KATP single channel activity in β-cells of control mice but not of βGC-A-KO mice...
September 1, 2017: Diabetes
https://www.readbyqxmd.com/read/28860791/soluble-st2-correlates-with-some-indicators-of-right-ventricular-function-in-hypertensive-heart-failure
#7
Dike B Ojji, Sandrine Lecour, Olusoji M Adeyemi, Karen Sliwa
PURPOSE: ST2 receptor, which is a member of the Toll-like/interleukin-1 (IL-1) receptor family, has been found to be increased in the serum of patients 1 day after myocardial infarction. Several other studies have shown that soluble ST2 levels correlate with severity of heart failure (HF), left ventricular ejection fraction, creatinine clearance, B-type natriuretic peptide and C-reactive protein, and are predictors of mortality in HF. Most of these studies were not only limited to ischemic heart disease but also concentrated on left-sided HF...
2017: Vascular Health and Risk Management
https://www.readbyqxmd.com/read/28852070/overexpression-of-c-type-natriuretic-peptide-in-endothelial-cells-protects-against-insulin-resistance-and-inflammation-during-diet-induced-obesity
#8
Cho-Rong Bae, Jun Hino, Hiroshi Hosoda, Yuji Arai, Cheol Son, Hisashi Makino, Takeshi Tokudome, Tsutomu Tomita, Toru Kimura, Takashi Nojiri, Kiminori Hosoda, Mikiya Miyazato, Kenji Kangawa
The endogenous peptide C-type natriuretic peptide (CNP) binds its receptor, guanylyl cyclase B (GCB), and is expressed by endothelial cells in diverse tissues. Because the endothelial cells of visceral adipose tissue have recently been reported to play a role in lipid metabolism and inflammation, we investigated the effects of CNP on features of obesity by using transgenic (Tg) mice in which CNP was placed under the control of the Tie2 promoter and was thus overexpressed in endothelial cells (E-CNP). Here we show that increased brown adipose tissue thermogenesis in E-CNP Tg mice increased energy expenditure, decreased mesenteric white adipose tissue (MesWAT) fat weight and adipocyte hypertrophy, and prevented the development of fatty liver...
August 29, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28846808/dna-methylation-dysregulations-in-valvular-atrial-fibrillation
#9
Kangjun Shen, Tao Tu, Zhaoshun Yuan, Jiangfeng Yi, Yangzhao Zhou, Xiaobo Liao, Qiming Liu, Xinmin Zhou
BACKGROUND: The epigenetic changes underlying the development of atrial fibrillation (AF) remain incompletely understood. Limited evidence suggests that abnormal DNA methylation might be involved in the pathogenesis of AF. In the present study, we evaluated the methylation status of genomic DNA from myocardial tissue in AF patients and sinus rhythm (SR) patients systematically. HYPOTHESIS: DNA methylation dysregulations will be associated with valvular AF. METHODS: Right atrial myocardial tissue was obtained from rheumatic valvular patients who had undergone valve replacement surgery (SR group, n = 10; AF group, n = 10)...
August 28, 2017: Clinical Cardiology
https://www.readbyqxmd.com/read/28844335/sacubitril-valsartan-an-important-piece-in-the-therapeutic-puzzle-of-heart-failure
#10
REVIEW
Pedro Marques da Silva, Carlos Aguiar
Sacubitril/valsartan (LCZ696), a supramolecular sodium salt complex of the neprilysin inhibitor prodrug sacubitril and the angiotensin receptor blocker (ARB) valsartan, was recently approved in the EU and the USA for the treatment of chronic heart failure (HF) with reduced ejection fraction (HFrEF) (NYHA class II-IV). Inhibition of chronically activated neurohormonal pathways (the renin-angiotensin-aldosterone system [RAAS] and sympathetic nervous system [SNS]) is central to the treatment of chronic HFrEF. Furthermore, enhancement of the natriuretic peptide (NP) system, with favorable cardiovascular (CV) and renal effects in HF, is a desirable therapeutic goal to complement RAAS and SNS blockade...
August 23, 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28840058/p2x7-receptor-and-apoe-polymorphisms-and-survival-from-heart-failure-a-prospective-study-in-frail-patients-in-a-geriatric-unit
#11
Giuseppe Pasqualetti, Marta Seghieri, Eleonora Santini, Chiara Rossi, Edoardo Vitolo, Livia Giannini, Maria Giovanna Malatesta, Valeria Calsolaro, Fabio Monzani, Anna Solini
Heart failure (HF) is one of the most frequent cause of hospitalization in elderly and often coexists with concurrent geriatric syndromes, like cognitive disturbances; various pathophysiological mechanisms are shared by HF and cognitive decline, notably a substrate of low-grade inflammation. We investigated whether SNPs in the purinergic receptor (P2X7R) and apolipoprotein (APO) E genes, both involved in a series of inflammatory responses, are associated to HF or cognitive impairment and are able to predict post-discharge mortality in the elderly...
July 2017: Aging and Disease
https://www.readbyqxmd.com/read/28831752/longitudinal-assessment-of-the-effect-of-atrasentan-on-thoracic-bioimpedance-in-diabetic-nephropathy-a-randomized-double-blind-placebo-controlled-trial
#12
David J Webb, Blai Coll, Hiddo J L Heerspink, Dennis Andress, Yili Pritchett, John J Brennan, Mark Houser, Ricardo Correa-Rotter, Donald Kohan, Hirofumi Makino, Vlado Perkovic, Giuseppe Remuzzi, Sheldon W Tobe, Robert Toto, Robert Busch, Pablo Pergola, Hans-Henrik Parving, Dick de Zeeuw
BACKGROUND: Fluid retention is a common adverse event in patients who receive endothelin (ET) receptor antagonist therapy, including the highly selective ETA receptor antagonist, atrasentan. OBJECTIVE: We performed longitudinal assessments of thoracic bioimpedance in patients with type 2 diabetes mellitus and nephropathy to determine whether a decrease in bioimpedance accurately reflected fluid retention during treatment with atrasentan. STUDY DESIGN: We conducted a randomized, double-blind, placebo-controlled study in 48 patients with type 2 diabetes mellitus and nephropathy who were receiving stable doses of renin angiotensin system inhibitors and diuretics...
August 22, 2017: Drugs in R&D
https://www.readbyqxmd.com/read/28820968/reduced-activin-receptor-like-kinase-1-activity-promotes-cardiac-fibrosis-in-heart-failure
#13
Kevin J Morine, Xiaoying Qiao, Vikram Paruchuri, Mark J Aronovitz, Emily E Mackey, Lyanne Buiten, Jonathan Levine, Keshan Ughreja, Prerna Nepali, Robert M Blanton, S Paul Oh, Richard H Karas, Navin K Kapur
INTRODUCTION: Activin receptor-like kinase 1 (ALK1) mediates signaling via the transforming growth factor beta-1 (TGFβ1), a pro-fibrogenic cytokine. No studies have defined a role for ALK1 in heart failure. HYPOTHESIS: We tested the hypothesis that reduced ALK1 expression promotes maladaptive cardiac remodeling in heart failure. METHODS AND RESULTS: In patients with advanced heart failure referred for left ventricular (LV) assist device implantation, LV Alk1 mRNA and protein levels were lower than control LV obtained from patients without heart failure...
July 18, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28809748/new-issues-on-measurement-of-b-type-natriuretic-peptides
#14
Aldo Clerico, Martina Zaninotto, Claudio Passino, Mario Plebani
The measurement of the active hormone of B-type natriuretic peptide (BNP) system actually has several analytical limitations and difficulties in clinical interpretations compared to that of inactive peptide N-terminal proBNP (NT-proBNP) because of the different biochemical and pathophysiological characteristics of two peptides and quality specifications of commercial immunoassay methods used for their measurement. Because of the better analytical characteristics of NT-proBNP immunoassays and the easier pathophysiological and clinical interpretations of variations of NT-proBNP levels in patients with heart failure (HF), some authors claimed to measure the inactive peptide NT-proBNP instead of the active hormone BNP for management of HF patients...
August 15, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
https://www.readbyqxmd.com/read/28794054/cardiovascular-event-prediction-by-machine-learning-the-multi-ethnic-study-of-atherosclerosis
#15
Bharath Ambale-Venkatesh, Xiaoying Yang, Colin O Wu, Kiang Liu, W G Hundley, Robyn L McClelland, Antoinette S Gomes, Aaron R Folsom, Steven Shea, Eliseo Guallar, David A Bluemke, João A Lima
Rationale: Machine learning may be useful to characterize cardiovascular risk, predict outcomes and identify biomarkers in population studies. Objective: To test the ability of random survival forests (RF), a machine learning technique, to predict six cardiovascular outcomes in comparison to standard cardiovascular risk scores. Methods and Results: We included participants from the Multi-Ethnic Study of Atherosclerosis (MESA). Baseline measurements were used to predict cardiovascular outcomes over 12 years of follow-up...
August 9, 2017: Circulation Research
https://www.readbyqxmd.com/read/28789938/azilsartan-ameliorates-diabetic-cardiomyopathy-in-young-db-db-mice-through-the-modulation-of-ace-2-ang-1-7-mas-receptor-cascade
#16
Vijayakumar Sukumaran, Hirotsugu Tsuchimochi, Eisuke Tatsumi, Mikiyasu Shirai, James T Pearson
Hyperglycemia up-regulates intracellular angiotensin II (ANG-II) production in cardiac myocytes. This study investigated the hemodynamic and metabolic effects of azilsartan (AZL) treatment in a mouse model of diabetic cardiomyopathy and whether the cardioprotective effects of AZL are mediated by the angiotensin converting enzyme (ACE)-2/ANG 1-7/Mas receptor (R) cascade. Control db/+ and db/db mice (n=5 per group) were treated with vehicle or AZL (1 or 3mg/kg/d oral gavage) from the age of 8 to 16weeks. Echocardiography was then performed and myocardial protein levels of ACE-2, Mas R, AT1R, AT2R, osteopontin, connective tissue growth factor (CTGF), atrial natriuretic peptide (ANP) and nitrotyrosine were measured by Western blotting...
August 5, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28780894/gene-therapy-for-hypertension
#17
Ludovit Paulis, Heinrich Franke, Fedor Simko
The control of hypertension and the resulting cardiovascular events is still insufficient. Thus, the search for novel means for blood pressure (BP) reduction remains worth further clinical and research attention. The advances in vector and construct design sketch the use of gene therapy in hypertension. Areas covered: We have searched for studies using gene therapy in hypertension reporting BP outcomes. We have identified 63 experimental studies demonstrating feasible targeting of the classical and new renin-angiotensin-aldosterone system, β1-adrenergic receptor, NO-cGMP axis, endothelin, natriuretic peptides, kallikrein system, cytochrome P-450 hydroxylase, oncogenes, growth factors, interleukins, angiopoietin-1, adrenomedullin or Klotho in small rodents...
August 17, 2017: Expert Opinion on Biological Therapy
https://www.readbyqxmd.com/read/28780577/drug-treatment-effects-on-outcomes-in-heart-failure-with-preserved-ejection-fraction-a-systematic-review-and-meta-analysis
#18
Sean Lee Zheng, Fiona T Chan, Adam A Nabeebaccus, Ajay M Shah, Theresa McDonagh, Darlington O Okonko, Salma Ayis
BACKGROUND: Clinical drug trials in patients with heart failure and preserved ejection fraction have failed to demonstrate improvements in mortality. METHODS: We systematically searched Medline, Embase and the Cochrane Central Register of Controlled Trials for randomised controlled trials (RCT) assessing pharmacological treatments in patients with heart failure with left ventricular (LV) ejection fraction≥40% from January 1996 to May 2016. The primary efficacy outcome was all-cause mortality...
August 5, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28769873/targeting-obesity-and-diabetes-to-treat-heart-failure-with-preserved-ejection-fraction
#19
REVIEW
Raffaele Altara, Mauro Giordano, Einar S Nordén, Alessandro Cataliotti, Mazen Kurdi, Saeed N Bajestani, George W Booz
Heart failure with preserved ejection fraction (HFpEF) is a major unmet medical need that is characterized by the presence of multiple cardiovascular and non-cardiovascular comorbidities. Foremost among these comorbidities are obesity and diabetes, which are not only risk factors for the development of HFpEF, but worsen symptoms and outcome. Coronary microvascular inflammation with endothelial dysfunction is a common denominator among HFpEF, obesity, and diabetes that likely explains at least in part the etiology of HFpEF and its synergistic relationship with obesity and diabetes...
2017: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/28765884/enhanced-expression-of-natriuretic-peptide-receptor-a-and-b-in-neutrophils-of-culprit-lesions-in-patients-with-acute-myocardial-infarction
#20
Masashi Nakagawa, Takahiko Naruko, Kenichi Sugioka, Chizuko Kitabayashi, Nobuyuki Shirai, Masahiko Takagi, Minoru Yoshiyama, Masahiko Ohsawa, Makiko Ueda
Natriuretic peptides and their specific receptors have been suggested to have regulatory effects on smooth muscle cell (SMC) growth and inflammatory cell reactions. However, the roles of natriuretic peptide receptor A (NPR‑A) and B (NPR‑B) in unstable plaques remain to be studied in detail. Frozen sections from 82 coronary artery segments were used. These segments were obtained at autopsy from 13 patients with acute myocardial infarction (AMI; 7 ruptured and 6 eroded plaques) and from 30 patients with non‑cardiovascular diseases...
September 2017: Molecular Medicine Reports
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