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https://www.readbyqxmd.com/read/28944646/acute-blood-glucose-cardiovascular-and-exaggerated-responses-to-high-intensity-interval-training-and-moderate-intensity-continuous-training-in-men-with-type-2-diabetes-mellitus
#1
Shohn G Wormgoor, Lance C Dalleck, Caryn Zinn, Nigel K Harris
BACKGROUND: Optimising exercise-induced physiological responses without increasing the risk of negative exaggerated responses is an important aspect of exercise prescription for people with type 2 diabetes mellitus (T2DM). However, knowledge of acute responses, including exaggerated responses, of different training modalities is limited. AIM: To compare acute physiological responses of moderate-intensity continuous training (MICT) and high-intensity interval training (HIIT) in T2DM...
September 22, 2017: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/28944304/wearable-technology-to-reduce-sedentary-behavior-and-cvd-risk-in-older-adults-design-of-a-randomized-controlled-trial
#2
Lisa M Krehbiel, Andrew S Layne, Bhanuprasad Sandesara, Todd M Manini, Stephen D Anton, Thomas W Buford
Persons aged over 65 years account for over the vast majority of healthcare expenditures and deaths attributable to cardiovascular disease (CVD). Accordingly, reducing CVD risk among older adults is an important public health priority. Structured physical activity (i.e. exercise) is a well-documented method of decreasing CVD risk, but recent large-scale trials suggest that exercise alone is insufficient to reduce CVD events in high-risk populations of older adults. Thus adjuvant strategies appear necessary to reduce CVD risk...
June 2017: Contemporary Clinical Trials Communications
https://www.readbyqxmd.com/read/28944224/the-relationship-between-parental-rearing-behavior-resilience-and-depressive-symptoms-in-adolescents-with-congenital-heart-disease
#3
Ju Ryoung Moon, Jinyoung Song, June Huh, I-Seok Kang, Seung Woo Park, Sung-A Chang, Ji-Hyuk Yang, Tae-Gook Jun
OBJECTIVES: Parental rearing behavior is one factor that influences the strength of resilience. In turn, resilience influences depression. However, it is unclear whether resilience has a mediating effect on the relationship between parental rearing and depression in adolescents with congenital heart disease (CHD). Therefore, the associations between parental rearing behavior and resilience and between rearing behavior and symptoms of depression were investigated with respect to age, gender and disease severity...
2017: Frontiers in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28943262/effectiveness-of-a-patient-education-programme-in-heart-failure-with-preserved-ejection-fraction-results-from-the-odin-cohort-study-using-propensity-score-matching
#4
Nelly Agrinier, Matthieu Schockmel, Nathalie Thilly, Hervé Laborde-Castérot, Patrick Jourdain, François Alla, Christophe Leclercq, François Dany, Justine Druelle, Emilie Drouet, Geneviève Mulak, Yves Juillière
BACKGROUND: Patient education programmes (PEP) are recommended for patients with heart failure but have not been specifically assessed in heart failure with preserved ejection fraction (HFpEF). AIM: To assess the effectiveness of a structured PEP in reducing all-cause mortality in patients with HFpEF. METHODS: Patients with HFpEF were selected from the ODIN cohort, designed to assess PEP effectiveness in patients with HF whatever their ejection fraction, included from 2007 to 2010, and followed up until 2013...
September 21, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28943248/the-medial-preoptic-area-modulates-autonomic-function-under-resting-and-stress-conditions
#5
Aline Fassini, América A Scopinho, Fernando H F Alves, Eduardo A T Fortaleza, Fernando M A Corrêa
The medial preoptic area (mPOA) participates in the temperature and cardiovascular control. The mPOA receives inputs from limbic structures and sends projections to hypothalamus and brainstem. Moreover, stress elicits pronounced neuronal activation in mPOA, suggesting its involvement in central neural pathway mediating stress responses. In the present study, we report the effect of acute mPOA neurotransmission inhibition using cobalt chloride (CoCl2-nonselective synapse blocker) on the mean arterial pressure (MAP), heart rate (HR), body and tail temperature (Tbody and Ttail, respectively), as well as on the HR component of baroreflex...
September 21, 2017: Neuroscience
https://www.readbyqxmd.com/read/28942390/imaging-for-structural-heart-procedures-focus-on-computed-tomography
#6
John Mooney, Stephanie L Sellers, Mickaël Ohana, João L Cavalcante, Chesnal D Arepalli, Rominder Grover, Ung Kim, Kapilan Selvakumar, Philipp Blanke, Jonathon A Leipsic
The success and continued rapid clinical integration of transcatheter valve technologies relies on imaging modalities to guide safe and effective device deployment. In particular, cardiac imaging, using both echocardiography and CT, is an integral resource for the multidisciplinary team. These modalities can provide valuable insight for the proceduralist at each stage of transcatheter-based valve insertion, as they can be used reliably to define the anatomy of interest and its relationship to surrounding structures, determine accurate device sizing, assess patients for valve-in-valve procedures, and screen for adverse features or procedural contraindications...
September 24, 2017: EuroIntervention
https://www.readbyqxmd.com/read/28941705/severe-dcm-phenotype-of-patient-harboring-rbm20-mutation-s635a-can-be-modeled-by-patient-specific-induced-pluripotent-stem-cell-derived-cardiomyocytes
#7
Katrin Streckfuss-Bömeke, Malte Tiburcy, Andrey Fomin, Xiaojing Luo, Wener Li, Claudia Fischer, Cemil Özcelik, Andreas Perrot, Samuel Sossalla, Jan Haas, Ramon Oliveira Vidal, Sabine Rebs, Sara Khadjeh, Benjamin Meder, Stefan Bonn, Wolfgang A Linke, Wolfram-Hubertus Zimmermann, Gerd Hasenfuss, Kaomei Guan
The ability to generate patient-specific induced pluripotent stem cells (iPSCs) provides a unique opportunity for modeling heart disease in vitro. In this study, we generated iPSCs from a patient with dilated cardiomyopathy (DCM) caused by a missense mutation S635A in RNA-binding motif protein 20 (RBM20) and investigated the functionality and cell biology of cardiomyocytes (CMs) derived from patient-specific iPSCs (RBM20-iPSCs). The RBM20-iPSC-CMs showed abnormal distribution of sarcomeric α-actinin and defective calcium handling compared to control-iPSC-CMs, suggesting disorganized myofilament structure and altered calcium machinery in CMs of the RBM20 patient...
September 20, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28941607/impact-of-left-ventricular-vs-biventricular-pacing-on-reverse-remodelling-insights-from-the-evaluation-of-resynchronization-therapy-for-heart-failure-earth-trial
#8
Sabah Skaf, Bernard Thibault, Paul Khairy, Eileen O'Meara, Annik Fortier, Halyna V Vakulenko, Céline Pitre, Michel White, Anique Ducharme
BACKGROUND: Studies comparing biventricular (BiV) cardiac resynchronization therapy (CRT) and left ventricular (LV) pacing alone have yielded conflicting results. We recently reported the results of the Greater Evaluation of Resynchronization Therapy for Heart Failure (GREATER-EARTH) trial demonstrating similar clinical benefits of BiV and LV-CRT on exercise tolerance. We report the prespecified secondary outcomes of the GREATER-EARTH trial, comparing the impact of BiV vs LV-CRT on structural and biochemical cardiac remodelling...
October 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28941606/new-developments-in-hypertrophic-cardiomyopathy
#9
REVIEW
Robert M Cooper, Claire E Raphael, Max Liebregts, Nandan S Anavekar, Josef Veselka
Hypertrophic cardiomyopathy is the leading cause of sudden death in young individuals and an important cause of heart failure at any age. In this review we discuss advances in investigation and management of this heterogenous disease. Improved cardiac imaging has allowed us to detail many of the structural abnormalities whereas the use of new techniques, predominantly in cardiac magnetic resonance imaging, has given us a greater insight in to tissue architecture, mechanism of contractile abnormalities, and function...
October 2017: Canadian Journal of Cardiology
https://www.readbyqxmd.com/read/28940991/guidewire-electrosurgery-assisted-trans-septal-puncture
#10
Jaffar M Khan, Toby Rogers, Marvin H Eng, Robert J Lederman, Adam B Greenbaum
OBJECTIVES: Electrifying a coronary guidewire may be a simple escalation strategy when trans-septal needle puncture is unsuccessful. BACKGROUND: Radiofrequency energy to facilitate trans-septal puncture through a dedicated device is costly and directly through a trans-septal needle may be less safe. Our technique overcomes these limitations. METHODS: The technique was used in patients when trans-septal needle penetration failed despite excessive force or tenting of the atrial septum...
September 20, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28940406/congenital-aortic-valve-repair-using-cormatrix-%C3%A2-a-histologic-evaluation
#11
Michael Hofmann, Martin O Schmiady, Barbara E Burkhardt, Hitendu H Dave, Michael Hübler, Oliver Kretschmar, Peter K Bode
BACKGROUND: The reconstruction of heart valves provides substantial benefits, particularly in the pediatric population. We present our experience using decellularized extracellular matrix (dECM, CorMatrix(®) ) for aortic valve procedures. METHODS: We retrospectively reviewed the case histories of 6 patients (aged from 2 months - 14 years) who underwent surgery for severe aortic valve stenosis (n = 4) or regurgitation (n = 2). Aortic valve repair was performed on all patients using dECM as a leaflet replacement or leaflet extension...
September 22, 2017: Xenotransplantation
https://www.readbyqxmd.com/read/28940232/two-year-extractability-of-novel-left-ventricular-active-fixation-leads-in-the-sheep-model
#12
Stuart Adler, Nicole Kirchhof, Amy E Thompson, Laurie Foerster, Kyle R Marquard, Douglas S Hine
BACKGROUND: A cardiac lead with a side helix for active fixation to the coronary vein wall (Attain Stability®, Model 20066, Medtronic) recently received CE Mark. The lead is designed to improve left ventricular (LV) placement and reduce dislodgment rates. The extractability of this active fixation LV lead has not been studied extensively. METHODS: Seventeen sheep were implanted with either an LV lead with a side helix (Model 20066, Model 20096, Medtronic) or a unipolar LV lead (Model 4193, Medtronic) as a control...
September 21, 2017: Pacing and Clinical Electrophysiology: PACE
https://www.readbyqxmd.com/read/28939714/kidney-disease-measures-and-left-ventricular-structure-and-function-the-atherosclerosis-risk-in-communities-study
#13
Kunihiro Matsushita, Lucia Kwak, Yingying Sang, Shoshana H Ballew, Hicham Skali, Amil M Shah, Josef Coresh, Scott Solomon
BACKGROUND: Heart failure is one of the most important complications of chronic kidney disease (CKD). However, few studies comprehensively investigated left ventricular (LV) structure and function in relation to 2 key CKD measures, estimated glomerular filtration rate (eGFR) and urine albumin/creatinine ratio (ACR). METHODS AND RESULTS: Among 4175 ARIC (Atherosclerosis Risk in Communities) participants (aged 66-90 years during 2011-2013), we quantified the association of eGFR and ACR with echocardiogram parameters of LV mass, size, systolic function, and diastolic function...
September 22, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28939354/a-deep-learning-approach-to-estimate-chemically-treated-collagenous-tissue-nonlinear-anisotropic-stress-strain-responses-from-microscopy-images
#14
Liang Liang, Minliang Liu, Wei Sun
Biological collagenous tissues comprised of networks of collagen fibers are suitable for a broad spectrum of medical applications owing to their attractive mechanical properties. In this study, we developed a noninvasive approach to estimate collagenous tissue elastic properties directly from microscopy images using Machine Learning (ML) techniques. Glutaraldehyde-treated bovine pericardium (GLBP) tissue, widely used in the fabrication of bioprosthetic heart valves and vascular patches, was chosen to develop a representative application...
September 19, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28938726/preparing-interventional-fellows-for-advanced-training-in-structural-heart-disease-interventions
#15
Ankur Kalra, Ali Andalib, Ronnie Ramadan, Abdul Moiz Hafiz, Marie-France Poulin, Hector Tamez, Duane S Pinto, Jeffrey J Popma
No abstract text is available yet for this article.
March 7, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28937256/evaluation-of-left-and-right-ventricular-systolic-and-diastolic-electromechanical-synchrony-in-older-people-a-population-based-observational-study
#16
R Laszlo, H Konz, K Kunz, D Dallmeier, J Klenk, M Denkinger, W Koenig, D Rothenbacher, J M Steinacker
It is unknown whether physiological ageing also goes along with electromechanical asynchrony of contraction. Aim of the study was to evaluate synchrony of contraction in older people with ("non-healthy") or without ("healthy") evidence for structural cardiac disease. In 547 persons (age 76.7+/-5.5 years, 306 male, 241 female) recruited from a population-based cohort of the ActiFE-Um study including a random sample of people >/= 65 years old living in the region of Ulm, Germany, various PW- and TDI-Doppler based markers for asynchrony were obtained by echocardiography...
September 22, 2017: Physiological Research
https://www.readbyqxmd.com/read/28936736/pathological-effects-of-exosomes-in-mediating-diabetic-cardiomyopathy
#17
Esam S B Salem, Guo-Chang Fan
Diabetic subjects are at risk of developing cardiovascular disease, which accounts for 60-80% of diabetes-related mortality. Atherosclerosis is still considered as a leading cause of heart failure in diabetic patients, but it could also be an intrinsic and long-term effect of contractile cardiac cells malfunction, known as diabetic cardiomyopathy (DCM). Pathologically, this cardiac dysfunction is manifested by inflammation, apoptosis, fibrosis, hypertrophy and altered cardiomyocytes metabolism. However, the underlying molecular mechanisms of DCM pathophysiology are not clearly understood...
2017: Advances in Experimental Medicine and Biology
https://www.readbyqxmd.com/read/28935953/very-low-density-lipoprotein-of-metabolic-syndrome-modulates-gap-junctions-and-slows-cardiac-conduction
#18
Hsiang-Chun Lee, Chih-Chieh Chen, Wei-Chung Tsai, Hsin-Ting Lin, Yi-Lin Shiao, Sheng-Hsiung Sheu, Bin-Nan Wu, Chu-Huang Chen, Wen-Ter Lai
Very-low-density lipoproteins (VLDL) is a hallmark of metabolic syndrome (MetS) and each manifestation of MetS is related to atrial fibrillation (AF) risks. Slowed atrial conduction is a mechanism of AF in MetS. We hypothesized that VLDL can modulate and reduce atrial gap junctions. VLDLs were separated from normal (Normal-VLDL) and MetS (MetS-VLDL) individuals. VLDLs (15 µg/g) and equivalent volumes of saline (CTL) were injected respectively to C57BL/6 mice for 6 weeks. Electrocardiograms demonstrated that MetS-VLDL induced prolongation of P wave (P = 0...
September 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28935829/contribution-of-structural-brain-phenotypes-to-the-variance-in-resting-energy-expenditure-in-healthy-caucasian-subjects
#19
Corinna Geisler, Mark Hübers, Oliver Granert, Manfred James Muller
BACKGROUND: Brain gray (GM) and white matter (WM) volumes are related to weight changes. The impact of structural variations in GM and WM on the variance in resting energy expenditure (REE) and the REE on fat free mass (FFM) association is unknown. The aim of this study was to address this in healthy Caucasian subjects. METHODS: Cross-sectional data analysis of 493 healthy Caucasian subjects (age range 6 to 80 years; three age groups) with comprehensive information on FFM, organ and tissue masses and detailed brain composition as assessed by whole body magnetic resonance imaging (MRI) and REE (assessed by indirect calorimetry)...
September 21, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28935198/obesity-in-america
#20
Raul J Rosenthal, John Morton, Stacy Brethauer, Samer Mattar, Eric De Maria, Jennifer K Benz, Jennifer Titus, David Sterrett
BACKGROUND: The prevalence of obesity in America continues to grow significantly. Awareness and understanding of the disease of obesity and treatment options for it appear to be lacking among the general US population. OBJECTIVE: This study aimed to identify misperceptions in diagnosis and treatment of obesity, struggles Americans face in obtaining treatment, consequences of obesity, and perceived barriers to weight loss. SETTING: University hospital, United States...
August 12, 2017: Surgery for Obesity and related Diseases: Official Journal of the American Society for Bariatric Surgery
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