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https://www.readbyqxmd.com/read/28342806/molecular-regulation-of-mitochondrial-dynamics-in-cardiac-disease
#1
REVIEW
Jinliang Nan, Wei Zhu, M S Rahman, Mingfei Liu, Dan Li, Shengan Su, Na Zhang, Xinyang Hu, Hong Yu, Mahesh P Gupta, Jian''an Wang
Mitochondrial homeostasis is critical for keeping functional heart in response to metabolic or environmental stresses. Mitochondrial fission and fusion (mitochondrial dynamics) play essential roles in maintaining mitochondrial homeostasis, defects in mitochondrial dynamics lead to cardiac diseases such as ischemia-reperfusion injury (IRI), heart failure and diabetic cardiomyopathy. Mitochondrial dynamics is determined by mitochondrial fission and fusion proteins, including OPA1, mitofusins and Drp1. These proteins are tightly regulated by a series of signaling pathways through different aspects such as transcription, post translation modifications (PTMs) and proteasome-dependent protein degradation...
March 22, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28342631/systematic-review-impact-of-the-new-task-force-criteria-in-the-diagnosis-of-arrhythmogenic-right-ventricular-cardiomyopathy
#2
Giuseppe Femia, Raymond W Sy, Rajesh Puranik
BACKGROUND: Arrhythmogenic right ventricular cardiomyopathy (ARVC) is an inherited disorder of cardiac desmosomes associated with ventricular arrhythmias and sudden cardiac death. The clinical diagnosis is problematic and relies on a complex criteria composed of clinical and non-clinical parameters. In 2010, the original 1994 Task Force Criteria (TFC) was revised with particular attention given to the imaging parameters. METHODS: Five retrospective studies compared the diagnostic concordance between the 1994 and 2010 TFC...
March 19, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28340470/calcifying-giant-cell-cardiomyopathy-a-possible-new-entity-images-in-cardiovascular-pathology
#3
Ke-Yong Wang, Sohsuke Yamada, Shohei Shimajiri, Ryuji Nakano, Naoki Yamashita, Tetsuya So, Akihide Tanimoto
We demonstrated an extremely unusual case of an 83-year-old male's sudden death secondary to characteristic myocardial necrosis and fibrosis with calcification and multinucleated giant cells infiltration, possibly due to sepsis and Stage IV pulmonary pleomorphic carcinoma-induced cachexia after postmortem study. We propose that this calcifying giant cell cardiomyopathy (CGC) would be a new entity especially from the pathological viewpoints and should be considered in the classification of noninfectious myocarditis...
March 12, 2017: Cardiovascular Pathology: the Official Journal of the Society for Cardiovascular Pathology
https://www.readbyqxmd.com/read/28340197/the-evolution-and-benefit-of-device-therapy-in-patients-listed-for-heart-transplant
#4
Bert Vandenberk, Mark Hinderks, Gabor Voros, Christophe Garweg, Johan Vanhaecke, Rik Willems
Aims: The latest 2015 ESC Guidelines on the prevention of sudden cardiac death make a Class IIa recommendation for ICD implantation in patients listed for heart transplantation. This recommendation was based on expert consensus in view of the sparsity of data. Methods and results: All patients listed for heart transplantation at the University Hospitals of Leuven from 2002 until 2014 were studied retrospectively. Exclusion criteria were age <16 years, cardiac disease other than ischaemic or dilated cardiomyopathy and re-transplantation...
March 9, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28340096/dual-vs-single-chamber-defibrillators-for-primary-prevention-of-sudden-cardiac-death-long-term-follow-up-of-the-d%C3%A3-fibrillateur-automatique-implantable-pr%C3%A3-vention-primaire-registry
#5
Pascal Defaye, Serge Boveda, Didier Klug, Frankie Beganton, Olivier Piot, Kumar Narayanan, Marie-Cécile Périer, Daniel Gras, Laurent Fauchier, Pierre Bordachar, Vincent Algalarrondo, Dominique Babuty, Jean-Claude Deharo, Christophe Leclercq, Eloi Marijon, Nicolas Sadoul
Aims: Implantable cardioverter defibrillators (ICDs) are an effective primary prevention of sudden cardiac death. We examined whether dual-chamber (DC) ICDs confer a greater benefit than single-chamber (SC) ICDs, and compared the long-term outcomes of recipients of each type of device implanted for primary prevention. Methods and results: Between 2002 and 2012, the DAI-PP registry consecutively enrolled 1258 SC- and 1280 DC-ICD recipients at 12 French medical centres...
March 8, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28340038/coincidental-coronary-artery-disease-impairs-outcome-in-patients-with-takotsubo-cardiomyopathy
#6
V Bill, I El-Battrawy, K Schramm, U Ansari, U Hoffmann, D Haghi, J Kuschyk, M Borggrefe, I Akin
Background and aim: Takotsubo cardiomyopathy (TC) is an important differential diagnosis of coronary artery disease (CAD), mimicking acute coronary syndrome in clinical symptoms, biomarker profiles and ST-elevation in ECG. Absence of occlusive coronary disease is an essential criterion distinguishing both diseases. The aim of the study was to explore the influence of co-existing incidental CAD on poorer clinical outcomes and all-cause mortality in TC. Design, methods and results: Our mono-centric study cohort constituted 114 consecutive patients diagnosed with TC between 2003 and 2015...
March 14, 2017: QJM: Monthly Journal of the Association of Physicians
https://www.readbyqxmd.com/read/28339842/epicardial-ablation-may-not-be-necessary-in-all-patients-with-arrhythmogenic-right-ventricular-dysplasia-cardiomyopathy-and-frequent-ventricular-tachycardia
#7
A Müssigbrodt, E Efimova, H Knopp, L Bertagnolli, N Dagres, S Richter, D Husser, A Bollmann, G Hindricks, A Arya
No abstract text is available yet for this article.
February 28, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339731/obesity-associated-cardiac-pathogenesis-in-broiler-breeder-hens-development-of-metabolic-cardiomyopathy2-3
#8
C Y Chen, Y F Huang, Y J Ko, Y J Liu, Y H Chen, R L Walzem, S E Chen
Feed intake is typically restricted (R) in broiler hens to avoid obesity and improve egg production and livability. To determine whether improved heart health contributes to improved livability, fully adult 45-week-old R hens were allowed to consume feed to appetite (ad libitum; AL) up to 10 wk (70 d). Mortality, contractile functions, and morphology at 70 d, and measurements of cardiac hypertrophic remodeling at 7 d and 21 d were made and compared between R and AL hens. Outcomes for cardiac electrophysiology and mortality, reported separately, found increased mortality in AL hens in association with cardiac pathological hypertrophy and contractile dysfunction...
February 22, 2017: Poultry Science
https://www.readbyqxmd.com/read/28339565/association-of-cardiac-resynchronization-therapy-with-the-incidence-of-appropriate-implantable-cardiac-defibrillator-therapies-in-ischaemic-and-non-ischaemic-cardiomyopathy
#9
Gerard Loughlin, Pablo Avila, Jose B Martinez-Ferrer, Javier Alzueta, Xavier Vinolas, Josep Brugada, Jose M Arizon, Ignacio Fernandez-Lozano, Enrique García-Campo, Nuria Basterra, Joaquin Fernandez De La Concha, Angel Arenal
Aims: Cardiac resynchronization therapy (CRT) reduces the incidence of sudden cardiac death and the use of appropriate implantable cardioverter-defibrillator (ICD) therapies (AICDTs); however, this antiarrhythmic effect is only observed in certain groups of patients. To gain insight into the effects of CRT on ventricular arrhythmia (VA) burden, we compared the incidence of AICDT use in four groups of patients: patients with ischaemic cardiomyopathy vs. non-ischaemic dilated cardiomyopathy (NIDC) and patients implanted with an ICD vs...
October 6, 2016: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28339476/transgenic-mice-overexpressing-desmocollin-2-dsc2-develop-cardiomyopathy-associated-with-myocardial-inflammation-and-fibrotic-remodeling
#10
Andreas Brodehl, Darrell D Belke, Lauren Garnett, Kristina Martens, Nelly Abdelfatah, Marcela Rodriguez, Catherine Diao, Yong-Xiang Chen, Paul M K Gordon, Anders Nygren, Brenda Gerull
BACKGROUND: Arrhythmogenic cardiomyopathy is an inherited heart muscle disorder leading to ventricular arrhythmias and heart failure, mainly as a result of mutations in cardiac desmosomal genes. Desmosomes are cell-cell junctions mediating adhesion of cardiomyocytes; however, the molecular and cellular mechanisms underlying the disease remain widely unknown. Desmocollin-2 is a desmosomal cadherin serving as an anchor molecule required to reconstitute homeostatic intercellular adhesion with desmoglein-2...
2017: PloS One
https://www.readbyqxmd.com/read/28339083/health-risk-assessment-of-environmental-selenium-emerging-evidence-and-challenges-review
#11
Marco Vinceti, Tommaso Filippini, Silvia Cilloni, Annalisa Bargellini, Anna Valeria Vergoni, Aristides Tsatsakis, Margherita Ferrante
New data have been accumulated in the scientific literature in recent years which allow a more adequate risk assessment of selenium with reference to human health. This new evidence comes from environmental studies, carried out in populations characterized by abnormally high or low selenium intakes, and from high-quality and large randomized controlled trials with selenium recently carried out in the US and in other countries. These trials have consistently shown no beneficial effect on cancer and cardiovascular risk, and have yielded indications of unexpected toxic effects of selenium exposure...
March 24, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28338606/dystrophic-cardiomyopathy-potential-role-of-calcium-in-pathogenesis-treatment-and-novel-therapies
#12
REVIEW
Victoria P A Johnstone, Helena M Viola, Livia C Hool
Duchenne muscular dystrophy (DMD) is caused by defects in the DMD gene and results in progressive wasting of skeletal and cardiac muscle due to an absence of functional dystrophin. Cardiomyopathy is prominent in DMD patients, and contributes significantly to mortality. This is particularly true following respiratory interventions that reduce death rate and increase ambulation and consequently cardiac load. Cardiomyopathy shows an increasing prevalence with age and disease progression, and over 95% of patients exhibit dilated cardiomyopathy by the time they reach adulthood...
March 24, 2017: Genes
https://www.readbyqxmd.com/read/28338377/sodium-potassium-adenosine-triphosphatase-na-k-atpase-as-a-therapeutic-target-for-uremic-cardiomyopathy
#13
Xiaoliang Wang, Jiang Liu, Christopher A Drummond, Joseph Shapiro
Clinically, patients with significant reductions in renal function present with cardiovascular dysfunction typically termed, uremic cardiomyopathy. It is a progressive series of cardiac pathophysiological changes, including left ventricular diastolic dysfunction and hypertrophy (LVH) which sometimes progress to left ventricular dilation (LVD) and systolic dysfunction in the setting of chronic kidney disease (CKD). Uremic cardiomyopathy is almost ubiquitous in patients afflicted with end stage renal disease (ESRD)...
March 24, 2017: Expert Opinion on Therapeutic Targets
https://www.readbyqxmd.com/read/28338349/clinical-features-of-children-and-adults-with-a-muscular-dystrophy-using-powered-indoor-outdoor-wheelchairs-disease-features-comorbidities-and-complications-of-disability
#14
Andrew Oliver Frank, Lorraine H De Souza
PURPOSE: To describe the clinical features of electric powered indoor/outdoor wheelchair users with a muscular dystrophy, likely to influence optimal prescription; reflecting features of muscular dystrophies, conditions secondary to disability, and comorbidities impacting on equipment provision. METHODS: Cross-sectional retrospective case note review of recipients of electric powered indoor/outdoor wheelchairs provided by a specialist regional wheelchair service...
February 25, 2017: Disability and Rehabilitation
https://www.readbyqxmd.com/read/28338096/identification-of-cardiac-hemo-vascular-precursors-and-their-requirement-of-sphingosine-1-phosphate-receptor-1-for-heart-development
#15
Yan Hu, Brian C Belyea, Minghong Li, Joachim R Göthert, R Ariel Gomez, Maria Luisa S Sequeira-Lopez
The cardiac endothelium plays a crucial role in the development of a functional heart. However, the precise identification of the endocardial precursors and the mechanisms they require for their role in heart morphogenesis are not well understood. Using in vivo and in vitro cell fate tracing concomitant with specific cell ablation and embryonic heart transplantation studies, we identified a unique set of precursors which possess hemogenic functions and express the stem cell leukemia (SCL) gene driven by its 5' enhancer...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28337901/cardiopathy-and-osteoporosis-the-epidemiology-in-a-region-of-italy
#16
A Notarnicola, G Maccagnano, L Moretti, S Tafuri, B Moretti
Cardiopathies and osteoporosis are inter-related due to pathogenetic, hormonal, genetic features as well as an increased risk of fragility. An important feature is attributed to the process of atherosclerosis, which is responsible for an osteopenia effect and degeneration of vascular walls. To date the study populations have been limited. To verify the incidence of cardio-vascular disease in a larger osteoporotic population, we designed a retrospective clinical study analyzing the “Hospital Discharge Data” (HDD) in Apulia between 2006 and 2010...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28337834/retinal-dystrophy-in-two-boys-with-costello-syndrome-due-to-the-hras-p-gly13cys-mutation
#17
Mary Ella Pierpont, Mary Richards, W Keith Engel, Nancy J Mendelsohn, C Gail Summers
Features of Costello Syndrome, a systemic disorder caused by germline mutations in the proto-oncogene HRAS from the RAS/MAPK pathway, include failure-to-thrive, short stature, coarse facial features, cardiac defects including hypertrophic cardiomyopathy, intellectual disability, and predisposition to neoplasia. Two unrelated boys with Costello syndrome and an HRAS mutation (p.Gly13Cys) are presented with their ophthalmologic findings. Both had early symptoms of nystagmus, photophobia, and vision abnormalities...
March 23, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28337717/injectable-bioengineered-hydrogel-therapy-in-the-treatment-of-ischemic-cardiomyopathy
#18
REVIEW
John W MacArthur, Amanda N Steele, Andrew B Goldstone, Jeffrey E Cohen, William Hiesinger, Y Joseph Woo
Over the past two decades, the field of cardiovascular medicine has seen the rapid development of multiple different modalities for the treatment of ischemic myocardial disease. Most research efforts have focused on strategies aimed at coronary revascularization, with significant technological advances made in percutaneous coronary interventions as well as coronary artery bypass graft surgery. However, recent research efforts have shifted towards ways to address the downstream effects of myocardial infarction on both cellular and molecular levels...
April 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28337255/combined-therapy-with-melatonin-and-exendin-4-effectively-attenuated-the-deterioration-of-renal-function-in-rat-cardiorenal-syndrome
#19
Kuan-Hung Chen, Chih-Hung Chen, Christopher Glenn Wallace, Yen-Ta Chen, Chih-Chao Yang, Pei-Hsun Sung, Hsin-Ju Chiang, Yi-Ling Chen, Sarah Chua, Hon-Kan Yip, Jiin-Tsuey Cheng
This study tested the hypothesis that combined therapy with melatonin (Mel) and exendin-4 (Ex4) would be superior to either therapy alone for preventing the deterioration of renal function in cardiorenal syndrome (CRS). Male adult Sprague Dawley rats (n = 48) were randomly and equally divided into sham-control (SC), chronic kidney disease (CKD; induced by 5/6 nephrectomy), CRS (CKD + dilated cardiomyopathy, DCM; induced by doxorubicin 7 mg/kg i.p. every 5 days, 4 doses), CRS-Mel (20 mg/kg/day), CRS-Ex4 (10 µg/kg/day) and CRS-Mel-Ex4...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28337097/neuromuscular-disease-mimicking-myasthenia-gravis-in-a-nigerian-female-adolescent-could-this-be-nemaline-rod-disease
#20
O A Oyinlade, I A Lagunju, B E Adebayo
BACKGROUND: Nemaline rod disease is a congenital myopathy, presentation of which may mimic myasthenia gravis. METHOD: We report a suspected case of nemaline rod disease in a female adolescent who presented with features similar to myasthenia gravis but failed to respond effectively to its conventional management. She had features of respiratory failure and cardiomyopathy. RESULTS: Patient had a turbulent clinical course and finally succumbed to illness on the fifth day of admission...
December 2016: Annals of Ibadan Postgraduate Medicine
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