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https://www.readbyqxmd.com/read/28818533/the-association-between-bouted-and-non-bouted-physical-activity-on-retinopathy-prevalence
#1
Emily Frith, Paul D Loprinzi
OBJECTIVE: We evaluated the specific differential association between non-bouted, lifestyle physical activities (vs. structured exercise; i.e., bouted physical activity) on retinopathy prevalence among a national sample of the broader U.S. adult population. METHODS: Data from the 2005-2006 National Health and Nutrition Examination Survey (NHANES) was used to identify 1501 adults, between 40 and 85years. Bouted and non-bouted physical activities were assessed using objective accelerometer monitoring...
August 14, 2017: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/28802249/high-resolution-mapping-of-chromatin-conformation-in-cardiac-myocytes-reveals-structural-remodeling-of-the-epigenome-in-heart-failure
#2
Manuel Rosa-Garrido, Douglas J Chapski, Anthony D Schmitt, Todd H Kimball, Elaheh Karbassi, Emma Monte, Enrique Balderas, Matteo Pellegrini, Tsai-Ting Shih, Elizabeth Soehalim, David A Liem, Peipei Ping, Niels J Galjart, Shuxun Ren, Yibin Wang, Bing Ren, Thomas M Vondriska
Background -Cardiovascular disease is associated with epigenomic changes in the heart, however the endogenous structure of cardiac myocyte chromatin has never been determined. Methods -To investigate the mechanisms of epigenomic function in the heart, genome-wide chromatin conformation capture (Hi-C) and DNA sequencing were performed in adult cardiac myocytes following development of pressure overload-induced hypertrophy. Mice with cardiac-specific deletion of CTCF (a ubiquitous chromatin structural protein) were generated to explore the role of this protein in chromatin structure and cardiac phenotype...
August 11, 2017: Circulation
https://www.readbyqxmd.com/read/28801407/the-boundaries-of-mild-chronic-obstructive-pulmonary-disease-copd-design-of-the-searching-clinical-copd-onset-soon-study
#3
Gonzalo Labarca, Andrea Bustamante, Gonzalo Valdivia, Rodrigo Díaz, Álvaro Huete, Paul Mac Nab, Laura Mendoza, Jaime Leppe, Carmen Lisboa, Fernando Saldías, Orlando Díaz
INTRODUCTION: Clinical onset of chronic obstructive pulmonary disease (COPD) is the point at which the disease is first identifiable by physicians. It is a poorly defined stage which seems to include both mild spirometric and non-spirometric disease, and could be described as early grade COPD, for practical purposes. While dyspnoea; chronic bronchitis and CT imaging evidence of emphysema and airway disease may be present very early, the lone significance of dyspnoea, the most relevant symptom in COPD in identifying these individuals, has been scarcely assessed...
August 11, 2017: BMJ Open
https://www.readbyqxmd.com/read/28782645/marfan-syndrome-a-connective-tissue-disease-at-the-crossroads-of-mechanotransduction-tgf%C3%AE-signaling-and-cell-stemness
#4
REVIEW
Francesco Ramirez, Cristina Caescu, Elisabeth Wondimu, Josephine Galatioto
Mutations in fibrillin-1 cause Marfan syndrome (MFS), the most common heritable disorder of connective tissue. Fibrillin-1 assemblies (microfibrils and elastic fibers) represent a unique dual-function component of the architectural matrix. The first role is structural for they endow tissues with tensile strength and elasticity, transmit forces across them and demarcate functionally discrete areas within them. The second role is instructive in that these macroaggregates modulate a large variety of sub-cellular processes by interacting with mechanosensors, and integrin and syndecan receptors, and by modulating the bioavailability of local TGFβ signals...
August 4, 2017: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/28766834/transseptal-puncture-using-surgical-electrocautery-in-children-and-adults-with-and-without-complex-congenital-heart-disease
#5
Srinath T Gowda, Athar M Qureshi, Daniel Turner, Nitin Madan, Justin Weigand, Richard Lorber, Harinder R Singh
BACKGROUND: Atrial transseptal puncture (TSP) for cardiac catheterization procedures remain challenging in children and adults with complex congenital heart disease (CHD). OBJECTIVES: We sought to evaluate our experience using radiofrequency (RF) current via surgical electrocautery needle for TSP to facilitate diagnostic and interventional procedures. METHODS: Retrospective chart review of all patients (pts) who underwent TSP using RF energy (10-25 W) via surgical electrocautery from three centers from January 2011 to January 2017 were evaluated...
August 2, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28743482/adult-congenital-heart-disease-in-greece-preliminary-data-from-the-challenge-registry
#6
G Giannakoulas, K Vasiliadis, A Frogoudaki, C Ntellos, A Tzifa, S Brili, A Manginas, M Papaphylactou, D Parcharidou, N Kampourides, A Pitsis, A Chamaidi, M Kolios, G Papadopoulos, A Douras, P Davlouros, D Ntiloudi, H Karvounis, A Kalangos, C Tsioufis, S Rammos
BACKGROUND: The majority of patients with congenital heart disease (CHD), nowadays, survives into adulthood and is faced with long-term complications. We aimed to study the basic demographic and clinical characteristics of adult patients with congenital heart disease (ACHD) in Greece. METHODS: A registry named CHALLENGE (Adult Congenital Heart Disease Registry. A registry from Hellenic Cardiology Society) was initiated in January 2012. Patients with structural CHD older than 16years old were enrolled by 16 specialized centers nationwide...
July 13, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28743245/mortality-trends-for-ischemic-heart-disease-in-china-an-analysis-of-102-continuous-disease-surveillance-points-from-1991-to-2009
#7
Xia Wan, Hongyan Ren, Enbo Ma, Gonghuan Yang
BACKGROUND: In the past 20 years, the trends of ischemic heart disease (IHD) mortality in China have been described in divergent claims. This research analyzes mortality trends for IHD by using the data from 102 continuous Disease Surveillance Points (DSP) from 1991 to 2009. METHOD: The 102 continuous DSP covered 7.3 million people during the period 1991-2000, and then were expanded to a population of 52 million in the same areas for 2004-2009. The data were adjusted by using garbage code redistribution and underreporting rate, mapped from international classification of diseases ICD-9 to ICD-10...
July 25, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28740174/plakophilin-2-is-required-for-transcription-of-genes-that-control-calcium-cycling-and-cardiac-rhythm
#8
Marina Cerrone, Jerome Montnach, Xianming Lin, Yan-Ting Zhao, Mingliang Zhang, Esperanza Agullo-Pascual, Alejandra Leo-Macias, Francisco J Alvarado, Igor Dolgalev, Thomas V Karathanos, Kabir Malkani, Chantal J M Van Opbergen, Joanne J A van Bavel, Hua-Qian Yang, Carolina Vasquez, David Tester, Steven Fowler, Fengxia Liang, Eli Rothenberg, Adriana Heguy, Gregory E Morley, William A Coetzee, Natalia A Trayanova, Michael J Ackerman, Toon A B van Veen, Hector H Valdivia, Mario Delmar
Plakophilin-2 (PKP2) is a component of the desmosome and known for its role in cell-cell adhesion. Mutations in human PKP2 associate with a life-threatening arrhythmogenic cardiomyopathy, often of right ventricular predominance. Here, we use a range of state-of-the-art methods and a cardiomyocyte-specific, tamoxifen-activated, PKP2 knockout mouse to demonstrate that in addition to its role in cell adhesion, PKP2 is necessary to maintain transcription of genes that control intracellular calcium cycling. Lack of PKP2 reduces expression of Ryr2 (coding for Ryanodine Receptor 2), Ank2 (coding for Ankyrin-B), Cacna1c (coding for CaV1...
July 24, 2017: Nature Communications
https://www.readbyqxmd.com/read/28735524/characterization-of-cytoskeleton-features-and-maturation-status-of-cultured-human-ipsc-derived-cardiomyocytes
#9
Christian Zuppinger, George Gibbons, Priyanka Dutta-Passecker, Adrian Segiser, Henriette Most, Thomas M Suter
Recent innovations in stem cell technologies and the availability of human induced pluripotent stem cell-derived cardiomyocytes (hiPSC-CMs) have opened new possibilities for studies and drug testing on human cardiomyocytes in vitro. Still, there are concerns about the precise nature of such 'reprogrammed' cells. We have performed an investigation using immunocytochemistry and confocal microscopy on several cellular features using commercially available hiPSC-CMs. For some selected developmentally regulated or cardiac chamber-specific proteins, we have compared the results from hiPSC-derived cardiomyocytes with freshly isolated, ventricular cardiomyocytes from adult rats...
June 21, 2017: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/28730459/fetal-programming-as-a-predictor-of-adult-health-or-disease-the-need-to-reevaluate-fetal-heart-function
#10
REVIEW
Joana O Miranda, Carla Ramalho, Tiago Henriques-Coelho, José Carlos Areias
Epidemiologic and experimental evidence suggests that adverse stimuli during critical periods in utero permanently alters organ structure and function and may have persistent consequences for the long-term health of the offspring. Fetal hypoxia, maternal malnutrition, or ventricular overloading are among the major adverse conditions that can compromise cardiovascular development in early life. With the heart as a central organ in fetal adaptive mechanisms, a deeper understanding of the fetal cardiovascular physiology and of the echocardiographic tools to assess both normal and stressed pregnancies would give precious information on fetal well-being and hopefully may help in early identification of special risk groups for cardiovascular diseases later in life...
July 20, 2017: Heart Failure Reviews
https://www.readbyqxmd.com/read/28727607/new-onset-heart-failure-and-mortality-in-hospital-survivors-of-sepsis-related-left-ventricular-dysfunction
#11
Saraschandra Vallabhajosyula, Jacob C Jentzer, Jeffrey B Geske, Mukesh Kumar, Ankit Sakhuja, Akhil Singhal, Joseph T Poterucha, Kianoush Kashani, Joseph G Murphy, Ognjen Gajic, Rahul Kashyap
BACKGROUND: The association between new-onset left ventricular (LV) dysfunction during sepsis with long-term heart failure outcomes is lesser understood. METHODS: Retrospective cohort study of all adult patients with severe sepsis and septic shock between 2007 and 2014 that underwent echocardiography within 72 hours admitted to the intensive care unit. Patients with prior heart failure, LV dysfunction, and structural heart disease were excluded. LV systolic dysfunction was defined as LV ejection fraction <50% and LV diastolic dysfunction as ≥grade II...
July 19, 2017: Shock
https://www.readbyqxmd.com/read/28714796/effect-of-bariatric-surgery-on-heart-failure
#12
Marcela Rodriguez Flores, Carlos Aguilar Salinas, Marie-Eve Piché, Audrey Auclair, Paul Poirier
Obesity increases the risk of heart failure (HF), which continues to be a significant proportion of all cardiovascular diseases and affects increasingly younger populations. The cross-talk between adipose and the heart involves insulin resistance, adipokine signaling and inflammation, with the capacity of adipose tissue to mediate hemodynamic signals, promoting progressive cardiomyopathy. Areas covered: From a therapeutic perspective, there is not yet a single obesity-related pathway that when addressed, can ameliorate cardiomyopathy in obese patients and this is a matter of ongoing research...
August 2017: Expert Review of Cardiovascular Therapy
https://www.readbyqxmd.com/read/28711883/medical-evaluation-of-efficiency-of-optimized-models-for-early-detection-and-primary-prevention-of-cardiovascular-diseases
#13
Vyacheslav M Zhdan, Irina A Holovanova, Valentina L Filatova, Maxim V Khorosh
INTRODUCTION: Nowadays cardiovascular disease occupies a leading place in the structure of the prevalence, incidence, disability causes and mortality of the adult population in Ukraine and in the whole world. The prevalence of hypertension in the adult population ranges from 25 - 40%, coronary heart disease is almost 20% of people aged 50-59 years while 24.3% of them have a form of silent coronary artery disease. The feasibility of study is justified by the need to perform health institutions Law of Ukraine dated 07...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28709919/morbidity-after-cardiac-surgery-in-patients-with-adult-congenital-heart-disease-in-comparison-with-acquired-disease
#14
Dimos Karangelis, Amine Mazine, Sreekanth Narsupalli, Shamarli Mendis, Gruschen Veldtman, Nicolas Nikolaidis
BACKGROUND: Due to the advancements in congenital cardiac surgery and interventional cardiology in the last five decades, more than 85% of congenital heart patients now survive to adulthood. METHODS: This retrospective study included 135 Adult Congenital Heart Disease (ACHD) patients, who had cardiac surgery at Southampton General Hospital over three consecutive years. We also included 42 patients with a structurally normal heart who had cardiac surgery for acquired cardiac conditions as a control group...
June 28, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28706735/the-importance-of-copy-number-variation-in-congenital-heart-disease
#15
Gregory Costain, Candice K Silversides, Anne S Bassett
Congenital heart disease (CHD) is the most common class of major malformations in humans. The historical association with large chromosomal abnormalities foreshadowed the role of submicroscopic rare copy number variations (CNVs) as important genetic causes of CHD. Recent studies have provided robust evidence for these structural variants as genome-wide contributors to all forms of CHD, including CHD that appears isolated without extra-cardiac features. Overall, a CNV-related molecular diagnosis can be made in up to one in eight patients with CHD...
September 14, 2016: NPJ Genomic Medicine
https://www.readbyqxmd.com/read/28704161/cardiovascular-safety-of-low-dose-fenfluramine-in-dravet-syndrome-a-review-of-its-benefit-risk-profile-in-a-new-patient-population
#16
An-Sofie Schoonjans, Fabienne Marchau, Bernard P Paelinck, Lieven Lagae, Arnold Gammaitoni, Milka Pringsheim, Martin G Keane, Berten Ceulemans
OBJECTIVE: Dravet syndrome (DS) is a rare, treatment-resistant epilepsy syndrome for which current treatment regimens are often ineffective. Fenfluramine is currently in development for treatment of DS based on reports in the 1980s and 1990s of its antiepileptic activity in pediatric patients with intractable epilepsy. However, fenfluramine was withdrawn from global markets in 1997 following reports of its association with pulmonary hypertension and heart valve disease in adult patients treated for obesity...
July 13, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28690296/prevalence-and-spectrum-of-nkx2-5-mutations-associated-with-sporadic-adult-onset-dilated-cardiomyopathy
#17
Jia-Hong Xu, Jian-Yun Gu, Yu-Han Guo, Hong Zhang, Xing-Biao Qiu, Ruo-Gu Li, Hong-Yu Shi, Hua Liu, Xiao-Xiao Yang, Ying-Jia Xu, Xin-Kai Qu, Yi-Qing Yang
Dilated cardiomyopathy (DCM), the most common form of primary myocardial disease, is a leading cause of congestive heart failure and the most common indication for heart transplantation. Recently, NKX2-5 mutations have been involved in the pathogenesis of familial DCM. However, the prevalence and spectrum of NKX2-5 mutations associated with sporadic DCM remain to be evaluated. In this study, the coding regions and flanking introns of the NKX2-5 gene, which encodes a cardiac transcription factor pivotal for cardiac development and structural remodeling, were sequenced in 210 unrelated patients with sporadic adult-onset DCM...
August 3, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28680863/adherence-to-insulin-self-administration-and-associated-factors-among-diabetes-mellitus-patients-at-tikur-anbessa-specialized-hospital
#18
Yusuf Gerada, Zuriyash Mengistu, Asrat Demessie, Atsede Fantahun, Kahsu Gebrekirstos
BACKGROUND: The goals of diabetes treatment are to keep blood glucose levels as near normal as possible while avoiding complications. Despite the benefits of insulin therapy, many people with diabetes don't adhere to treatment. Some avoid insulin therapy or refuse to start it. Several studies investigating adherence to chronic disease treatment have evidenced that patients often discontinue their medications or even do not take them at all because they consider them ineffective or experience untoward side effects...
2017: Journal of Diabetes and Metabolic Disorders
https://www.readbyqxmd.com/read/28678069/echocardiographic-assessment-of-mitral-stenosis-orifice-area-a-comparison-of-a-novel-three-dimensional-method-versus-conventional-techniques
#19
Sergey Karamnov, Nelson Burbano-Vera, Chuan-Chin Huang, John A Fox, Stanton K Shernan
BACKGROUND: A comprehensive evaluation of mitral stenosis (MS) severity commonly utilizes two-dimensional (2D) echocardiography techniques. However, the complex three-dimensional (3D) structure of the mitral valve (MV) poses challenges to accurate measurements of its orifice area by 2D imaging modalities. We aimed to assess MS severity by comparing measurements of the MV orifice area using conventional echocardiography methods to 3D orifice area (3DOA), a novel echocardiographic technique which minimizes geometric assumptions...
September 2017: Anesthesia and Analgesia
https://www.readbyqxmd.com/read/28676244/diagnostic-yield-of-cardiovascular-magnetic-resonance-in-young-middle-aged-patients-with-high-grade-atrio-ventricular-block
#20
A Baritussio, A Ghosh Dastidar, A Frontera, N Ahmed, E De Garate, I Harries, I Diab, E Duncan, G Thomas, A Nisbet, C Bucciarelli-Ducci
BACKGROUND: Atrio-ventricular block (AVB) is a rare finding in young or middle-aged adults, often leading to pacemaker implantation (PM) without further investigation. We sought to assess the diagnostic role of cardiovascular magnetic resonance (CMR) in young and middle-aged adults with high-grade AVB. METHODS: We consecutively enrolled young-middle aged (18-65years) patients with high grade AVB referred to CMR after standard clinical assessment (history, electrocardiogram and cardiac rhythm monitoring) prior to PM implantation...
June 21, 2017: International Journal of Cardiology
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