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Heart failure cardiomyopathy

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https://www.readbyqxmd.com/read/29345426/single-dose-intravenous-iron-in-southeast-asian-heart-failure-patients-a-pilot-randomized-placebo-controlled-study-practice-asia-hf
#1
Tee Joo Yeo, Poh Shuan Daniel Yeo, Farid Abdul Hadi, Timothy Cushway, Kim Yee Lee, Fang Fang Yin, Anne Ching, Ruili Li, Seet Yoong Loh, Shir Lynn Lim, Raymond Ching-Chiew Wong, Bee Choo Tai, Arthur Mark Richards, Carolyn S P Lam
AIMS: Iron deficiency is highly prevalent in Southeast Asians with heart failure (HF) and associated with worse outcomes. This trial aimed to assess the effect of intravenous iron in Southeast Asians hospitalized with decompensated HF. METHODS AND RESULTS: Fifty patients hospitalized for acute decompensated HF, regardless of ejection fraction, with iron deficiency (defined as serum ferritin <300 ng/mL if transferrin saturation is <20%) were randomized to receive either one dose of intravenous ferric carboxymaltose (FCM) 1000 mg or placebo (0...
January 18, 2018: ESC Heart Failure
https://www.readbyqxmd.com/read/29344294/cardiomyocyte-restricted-low-density-lipoprotein-receptor-related-protein-6-lrp6-deletion-leads-to-lethal-dilated-cardiomyopathy-partly-through-drp1-signaling
#2
Zhidan Chen, Yang Li, Ying Wang, Juying Qian, Hong Ma, Xiang Wang, Guoliang Jiang, Ming Liu, Yanpeng An, Leilei Ma, Le Kang, Jianguo Jia, Chunjie Yang, Guoping Zhang, Ying Chen, Wei Gao, Mingqiang Fu, Zheyong Huang, Huiru Tang, Yichun Zhu, Junbo Ge, Hui Gong, Yunzeng Zou
Low density lipoprotein receptor-related protein 6 (LRP6), a wnt co-receptor, regulates multiple functions in various organs. However, the roles of LRP6 in the adult heart are not well understood. Methods: We observed LRP6 expression in heart with end-stage dilated cardiomyopathy (DCM) by western blot. Tamoxifen-inducible cardiac-specific LRP6 knockout mouse was constructed. Hemodynamic and echocardiographic analyses were performed to these mice. Results: Cardiac LRP6 expression was dramatically decreased in patients with end-stage dilated cardiomyopathy (DCM) compared to control group...
2018: Theranostics
https://www.readbyqxmd.com/read/29343862/angiotensin-ii-overstimulation-leads-to-an-increased-susceptibility-to-dilated-cardiomyopathy-and-higher-mortality-in-female-mice
#3
Sophie Mathieu, Nabil El Khoury, Katy Rivard, Pierre Paradis, Mona Nemer, Céline Fiset
Heart failure (HF) is associated with high mortality and affects men and women differently. The underlying mechanisms for these sex-related differences remain largely unexplored. Accordingly, using mice with cardiac-specific overexpression of the angiotensin II (ANGII) type 1 receptor (AT1R), we explored male-female differences in the manifestations of hypertrophy and HF. AT1R mice of both sexes feature electrical and Ca2+ handling alterations, systolic dysfunction, hypertrophy and develop HF. However, females had much higher mortality (21...
January 17, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29343659/cardiac-mr-imaging-of-hypertrophic-cardiomyopathy-techniques-findings-and-clinical-relevance
#4
Yasuo Amano, Mitsunobu Kitamura, Hitoshi Takano, Fumi Yanagisawa, Masaki Tachi, Yasuyuki Suzuki, Shinichiro Kumita, Morimasa Takayama
Hypertrophic cardiomyopathy (HCM) is a relatively common myocardial genetic disease having a wide variety of symptoms and prognoses. The most serious complications of HCM are sudden cardiac death induced by ventricular arrhythmia or inappropriate changes in blood pressure, and heart failure. Cardiac MR imaging is a valuable imaging method for detecting HCM because of its accurate measurement of wall thickness and myocardial mass without limited view and the unique ability of late gadolinium enhancement (LGE) to identify myocardial fibrosis related to the prognosis of HCM...
January 18, 2018: Magnetic Resonance in Medical Sciences: MRMS
https://www.readbyqxmd.com/read/29343624/inhalation-of-peptide-loaded-nanoparticles-improves-heart-failure
#5
Michele Miragoli, Paola Ceriotti, Michele Iafisco, Marco Vacchiano, Nicolò Salvarani, Alessio Alogna, Pierluigi Carullo, Gloria Belén Ramirez-Rodríguez, Tatiana Patrício, Lorenzo Degli Esposti, Francesca Rossi, Francesca Ravanetti, Silvana Pinelli, Rossella Alinovi, Marco Erreni, Stefano Rossi, Gianluigi Condorelli, Heiner Post, Anna Tampieri, Daniele Catalucci
Peptides are highly selective and efficacious for the treatment of cardiovascular and other diseases. However, it is currently not possible to administer peptides for cardiac-targeting therapy via a noninvasive procedure, thus representing scientific and technological challenges. We demonstrate that inhalation of small (<50 nm in diameter) biocompatible and biodegradable calcium phosphate nanoparticles (CaPs) allows for rapid translocation of CaPs from the pulmonary tree to the bloodstream and to the myocardium, where their cargo is quickly released...
January 17, 2018: Science Translational Medicine
https://www.readbyqxmd.com/read/29343412/implementing-genome-driven-personalized-cardiology-in-clinical-practice
#6
REVIEW
Ares Pasipoularides
Genomics designates the coordinated investigation of a large number of genes in the context of a biological process or disease. It may be long before we attain comprehensive understanding of the genomics of common complex cardiovascular diseases (CVDs) such as inherited cardiomyopathies, valvular diseases, primary arrhythmogenic conditions, congenital heart syndromes, hypercholesterolemia and atherosclerotic heart disease, hypertensive syndromes, and heart failure with preserved/reduced ejection fraction. Nonetheless, as genomics is evolving rapidly, it is constructive to survey now pertinent concepts and breakthroughs...
January 14, 2018: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29341478/translational-systems-pharmacology-based-predictive-assessment-of-drug-induced-cardiomyopathy
#7
Dimitris E Messinis, Ioannis N Melas, Junguk Hur, Navya Varshney, Leonidas G Alexopoulos, Jane P F Bai
Drug-induced cardiomyopathy contributes to drug attrition. We compared two pipelines of predictive modeling: (1) applying elastic net (EN) to differentially expressed genes (DEGs) of drugs; (2) applying integer linear programming (ILP) to construct each drug's signaling pathway starting from its targets to downstream proteins, to transcription factors, and to its DEGs in human cardiomyocytes, and then subjecting the genes/proteins in the drugs' signaling networks to EN regression. We classified 31 drugs with availability of DEGs into 13 toxic and 18 nontoxic drugs based on a clinical cardiomyopathy incidence cutoff of 0...
January 17, 2018: CPT: Pharmacometrics & Systems Pharmacology
https://www.readbyqxmd.com/read/29339690/the-rationale-and-design-of-the-national-peripartum-cardiomyopathy-registries-in-turkey-the-artemis-i-and-artemis-ii-studies
#8
Meral Kayıkçıoğlu, Lale Tokgözoğlu, Ferit Onur Mutluer, Dilek Ural, Murat Biteker
OBJECTIVE: Peripartum cardiomyopathy (PPCM) is left ventricular (LV) systolic dysfunction with an ejection fraction of ≤45% occurring in the later stages of pregnancy or soon after delivery. Although various risk factors have been identified, the exact cause of the disease is unknown. Unlike most countries in the European region, Turkey has yet to determine the current PPCM burden. A registry for this purpose does not exist. To close this gap, the A RegisTry of pEripartuM cardIomyopathy in Turkish patientS (ARTEMIS-I and ARTEMIS-II), was planned and endorsed by the Turkish Society of Cardiology...
January 2018: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/29335596/circulating-microrna-signature-for-the-diagnosis-of-childhood-dilated-cardiomyopathy
#9
Meng Jiao, Hong-Zhao You, Xin-Ying Yang, Hui Yuan, Yu-Lin Li, Wen-Xian Liu, Mei Jin, Jie Du
Circulating miRNAs are proposed as a biomarker of heart disease. This study evaluated whether circulating miRNAs could be used as a biomarker for childhood dilated cardiomyopathy (CDCM). A total of 28 participants were enrolled in a discovery set, including patients with CDCM (n = 16) and healthy children (n = 12). The cardiac function of patients with CDCM was characterized by echocardiography and serum miRNA profiles of all participants were assessed by miRNA sequencing. After miRNA profiling, we quantitatively confirmed 148 regulated miRNAs in patients with CDCM compared with healthy subjects, and none were downregulated...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29333691/the-innate-immune-system-in-chronic-cardiomyopathy-a-european-society-of-cardiology-esc-scientific-statement-from-the-working-group-on-myocardial-function-of-the-esc
#10
REVIEW
Stefan Frantz, Ines Falcao-Pires, Jean-Luc Balligand, Johann Bauersachs, Dirk Brutsaert, Michele Ciccarelli, Dana Dawson, Leon J de Windt, Mauro Giacca, Nazha Hamdani, Denise Hilfiker-Kleiner, Emilio Hirsch, Adelino Leite-Moreira, Manuel Mayr, Thomas Thum, Carlo G Tocchetti, Jolanda van der Velden, Gilda Varricchi, Stephane Heymans
Activation of the immune system in heart failure (HF) has been recognized for over 20 years. Initially, experimental studies demonstrated a maladaptive role of the immune system. However, several phase III trials failed to show beneficial effects in HF with therapies directed against an immune activation. Preclinical studies today describe positive and negative effects of immune activation in HF. These different effects depend on timing and aetiology of HF. Therefore, herein we give a detailed review on immune mechanisms and their importance for the development of HF with a special focus on commonalities and differences between different forms of cardiomyopathies...
January 15, 2018: European Journal of Heart Failure
https://www.readbyqxmd.com/read/29332614/serelaxin-for-infant-heart-failure-in-congenital-dilated-cardiomyopathy
#11
Patrick O Myers, Alice Bordessoule, Cécile Tissot
Serelaxin has been studied in trials in adults with acute heart failure, but not in children. We report the first compassionate use of serelaxin in an infant. A 6-month-old girl with dilated cardiomyopathy was placed on extracorporeal membrane oxygenation following cardiac arrest unresponsive to medical treatment. Extracorporeal membrane oxygenation weaning failed despite maximal ino-dilator therapy. During the 48-hour infusion of serelaxin, we observed marked improvement in brain natriuretic peptide, left ventricular systolic function, and dilatation...
January 15, 2018: Cardiology in the Young
https://www.readbyqxmd.com/read/29332241/atrial-fibrillation-is-associated-with-sudden-cardiac-death-a-systematic-review-and-meta-analysis
#12
Pattara Rattanawong, Sikarin Upala, Tanawan Riangwiwat, Veeravich Jaruvongvanich, Anawin Sanguankeo, Wasawat Vutthikraivit, Eugene H Chung
PURPOSE: Recent studies suggest that atrial fibrillation (AF) is associated with increased cardiovascular risk and mortality including sudden cardiac death (SCD). According to the Cardiovascular Heath Study cohort, the incident rate of SCD was higher in the AF population (2.9 per 1000 per year) compared with non-AF controls (1.3 per 1000 per year). In this study, we performed a systematic review and meta-analysis to explore the association between AF and SCD. METHODS: We comprehensively searched the databases of MEDLINE and EMBASE from inception to January 2017...
January 13, 2018: Journal of Interventional Cardiac Electrophysiology: An International Journal of Arrhythmias and Pacing
https://www.readbyqxmd.com/read/29330935/takotsubo-cardiomyopathy-in-a-young-adult-with-transplanted-heart-what-happened-to-denervation
#13
Marcello Chinali, Roberto Formigari, Giorgia Grutter
This manuscript describes the first report of takotsubo cardiomyopathy in a young heart transplant recipient following angry debate. Our patient is a 21-year-old woman with cardiac transplant performed owing to right ventricular failure in congenital heart disease. Positive echocardiography with typical asymmetry of regional function, positive enzymes, and negative biopsy and angiography met the criteria for the diagnosis of takotsubo cardiomyopathy. Patient was discharged after 1 week in good clinical conditions and fully recovered cardiac function...
January 13, 2018: ESC Heart Failure
https://www.readbyqxmd.com/read/29325795/insertional-mutagenesis-confounds-the-mechanism-of-the-morbid-phenotype-of-a-plnr9c-transgenic-mouse-line
#14
Alexander Kraev
BACKGROUND: A mouse line with heterozygous transgenic expression of phospholamban carrying a substitution of cysteine for arginine 9 (TgPLNR9C) under the control of α-myosin heavy chain (αMHC) promoter features dilated cardiomyopathy, heart failure and premature death. METHODS AND RESULTS: Determination of transgene chromosomal localization by conventional methods shows that in this line the transgenic array of 13 PLNR9C expression cassettes, arranged in a head-to-tail tandem orientation, has integrated into the bi-directional promoter of the αMHC (Myh6) gene and the gene for the regulatory non-coding RNA Myheart (Mhrt), both of which are known to be involved in cardiac development and pathology...
January 8, 2018: Journal of Cardiac Failure
https://www.readbyqxmd.com/read/29325362/-predicting-value-of-2014-european-guidelines-risk-prediction-model-for-sudden-cardiac-death-hcm-risk-scd-in-chinese-patients-with-hypertrophic-cardiomyopathy
#15
W X Li, L W Liu, J Wang, L Zuo, F Yang, N Kang, C H Lei
Objective: To evaluate the predicting value of the 2014 European Society of Cardiology (ESC) guidelines risk prediction model for sudden cardiac death (HCM Risk-SCD) in Chinese patients with hypertrophic cardiomyopathy (HCM), and to explore the predictors of adverse cardiovascular events in Chinese HCM patients. Methods: The study population consisted of a consecutive 207 HCM patients admitted in our center from October 2014 to October 2016. All patients were followed up to March 2017. The 5-year SCD probability of each patient was estimated using HCM Risk-SCD model based on electrocardiogram, echocardiography and cardiac magnetic resonance (CMR) examination results...
December 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29324812/identifying-unmet-clinical-need-in-hypertrophic-cardiomyopathy-using-national-electronic-health-records
#16
Mar Pujades-Rodriguez, Oliver P Guttmann, Arturo Gonzalez-Izquierdo, Bram Duyx, Constantinos O'Mahony, Perry Elliott, Harry Hemingway
INTRODUCTION: To evaluate unmet clinical need in unselected hypertrophic cardiomyopathy (HCM) patients to determine the risk of a wide range of subsequent cardiovascular disease endpoints and safety endpoints relevant for trial design. METHODS: Population based cohort (CALIBER, linked primary care, hospital and mortality records in England, period 1997-2010), all people diagnosed with HCM were identified and matched by age, sex and general practice with ten randomly selected people without HCM...
2018: PloS One
https://www.readbyqxmd.com/read/29323769/systolic-heart-failure-after-liver-transplantation-incidence-predictors-and-outcome
#17
Abraham Sonny, Srinivasa R Govindarajan, Wael A Jaber, Jacek B Cywinski
Though most patients presenting for liver transplantation have normal left ventricular function, some develop left ventricular failure after transplantation. The primary objective of our study was to determine the predictors of systolic heart failure occurring immediately after liver transplantation. Its etiology, prospects of recovery and factors associated with non-recovery were also studied. Liver transplantations performed at our institution from 01/2006 to 02/2015 were evaluated using prospectively collected institutional registries...
January 11, 2018: Clinical Transplantation
https://www.readbyqxmd.com/read/29323723/haplo-insufficiency-of-bcl2-associated-athanogene-3-in-mice-results-in-progressive-left-ventricular-dysfunction-%C3%AE-adrenergic-insensitivity-and-increased-apoptosis
#18
Valerie D Myers, Dhanendra Tomar, Muniswamy Madesh, JuFang Wang, Jianliang Song, Xue-Qian Zhang, Manish K Gupta, Farzaneh G Tahrir, Jennifer Gordon, Joseph M McClung, Christopher D Kontos, Kamel Khalili, Joseph Y Cheung, Arthur M Feldman
Bcl2-associated athanogene 3 (BAG3) is a 575 amino acid protein that is found predominantly in the heart, skeletal muscle and many cancers. Deletions and truncations in BAG3 that result in haplo-insufficiency have been associated with the development of dilated cardiomyopathy. To study the cellular and molecular events attributable to BAG3 haplo-insufficiency we generated a mouse in which one allele of BAG3 was flanked by loxP recombination sites (BAG3fl/+ ). Mice were crossed with α-MHC-Cre mice in order to generate mice with cardiac-specific haplo-insufficiency (cBAG3+/-) and underwent bi-weekly echocardiography to assess their cardiac phenotype...
January 11, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29321034/diagnostic-and-prognostic-utility-of-cardiovascular-magnetic-resonance-imaging-in-heart-failure-with-preserved-ejection-fraction-implications-for-clinical-trials
#19
Prathap Kanagala, Adrian S H Cheng, Anvesha Singh, John McAdam, Anna-Marie Marsh, Jayanth R Arnold, Iain B Squire, Leong L Ng, Gerry P McCann
BACKGROUND: Heart failure with preserved ejection fraction (HFpEF) is a poorly characterized condition. We aimed to phenotype patients with HFpEF using multiparametric stress cardiovascular magnetic resonance imaging (CMR) and to assess the relationship to clinical outcomes. METHODS: One hundred and fifty four patients (51% male, mean age 72 ± 10 years) with a diagnosis of HFpEF underwent transthoracic echocardiography and CMR during a single study visit. The CMR protocol comprised cine, stress/rest perfusion and late gadolinium enhancement imaging on a 3T scanner...
January 11, 2018: Journal of Cardiovascular Magnetic Resonance
https://www.readbyqxmd.com/read/29318456/voltage-dependence-of-the-ca2-transient-in-endocardial-and-epicardial-myocytes-from-the-left-ventricle-of-goto-kakizaki-type-2-diabetic-rats
#20
Lina Al Kury, Vadym Sydorenko, Manal M A Smail, Muhammad Anwar Qureshi, Anatoliy Shmygol, Murat Oz, Jaipaul Singh, Frank Christopher Howarth
Diabetes mellitus is a major global health disorder and, currently, over 450 million people have diabetes with 90% suffering from type 2 diabetes. Left untreated, diabetes may lead to cardiovascular diseases which are a leading cause of death in diabetic patients. Calcium is the trigger and regulator of cardiac muscle contraction and derangement in cellular Ca2+ homeostasis, which can result in heart failure and sudden cardiac death. It is of paramount importance to investigate the regional involvement of Ca2+ in diabetes-induced cardiomyopathy...
January 9, 2018: Molecular and Cellular Biochemistry
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