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https://www.readbyqxmd.com/read/27911047/modified-mrna-as-a-therapeutic-tool-to-induce-cardiac-regeneration-in-ischemic-heart-disease
#1
REVIEW
Yoav Hadas, Michael G Katz, Charles R Bridges, Lior Zangi
Ischemic heart disease (IHD) is a leading cause of morbidity and mortality in developed countries. Current pharmacological and interventional therapies provide significant improvement in the life quality of patient; however, they are mostly symptom-oriented and not curative. A high disease and economic burden of IHD requires the search for new therapeutic strategies to significantly improve patients' prognosis and quality of life. One of the main challenges during IHD is the massive loss of cardiomyocytes that possess minimal regenerative capacity...
December 2, 2016: Wiley Interdisciplinary Reviews. Systems Biology and Medicine
https://www.readbyqxmd.com/read/27909891/canola-oil-rich-in-oleic-acid-improves-diastolic-heart-function-in-diet-induced-obese-rats
#2
Sijo Joseph Thandapilly, Pema Raj, Xavier Lieben Louis, Danielle Perera, Prasanga Yamanagedara, Peter Zahradka, Carla G Taylor, Thomas Netticadan
Obesity is a leading cause of cardiovascular disease. It directly affects heart structure and function and contributes to heart failure. Diet is a major factor involved in the development of obesity along with genetic factors. We examined the effects of monounsaturated and polyunsaturated fatty acid-rich oils on cardiac structure and function in the diet-induced rodent model of obesity (DIO). Obese prone (OP) rats were fed a high-fat diet (HF; 55% of kcal) for 12 weeks; Sprague-Dawley rats fed commercial chow served as control...
December 1, 2016: Journal of Physiological Sciences: JPS
https://www.readbyqxmd.com/read/27909515/myocardial-biopsy-in-idiopathic%C3%A2-atrial-fibrillation-and-other-arrhythmias-nosological-diagnosis-clinical-and-morphological-parallels-and-treatment
#3
O V Blagova, A V Nedostup, E A Kogan, V A Sulimov, S A Abugov, A G Kupriyanova, V A Zaydenov, A E Donnikov, E V Zaklyazminskaya, E A Okisheva
BACKGROUND: The nosological nature of "idiopathic" arrhythmias and the effect of etiotropic and pathogenetic treatment are often unknown. METHODS AND RESULTS: 19 patients (42.6±11.3 years, 9 women) with atrial fibrillation (n = 16), supraventricular (n = 10) and ventricular (n = 4) premature beats, supraventricular (n = 2) and ventricular tachycardia (n = 1), left bundle branch block (n= 2), AV block (n = 2) without structural heart changes. Viruses were identified (polymerase chain reaction, PCR) along with measurement of anti-heart antibodies (AHA) and endomyocardial biopsy (EMB)...
June 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27909503/first-and-second-generation-cryoballoon-ablation-efficacy-restoring-and-maintaining-sinus-rhythm-in-patients-electrically-selected-and-treated-for-long-standing-persistent-atrial-fibrillation-after-acute-complete-electrical-disconnection-of-pulmonary-veins
#4
Jesus M Paylos Md PhD, Luis Azcona Md, Lourdes Lacal Md, Marisol Paradela Md, Carmen Cilleros Md, Ildefonso Del Campo Md, Clara Ferrero Rn Carlos Martínez Md PhD, Aracelis Morales Md
Introduction Cryoballoon ablation (CB) has proven effective to treatment of patients (pts) with atrial fibrillation (AF). However, the isolated efficacy of CB to treat pts with long-standing persistent atrial fibrillation (LSPAF) is less know. We analyzed the acute results and the long-term follow-up of our pts suffering LSPAF and initially treated with CB. Methods A cohort of 44 pts, 37 male (84%) mean age (60±10 year) suffering LSPAF were treated with first (CB1): 15pts, and second (CB2): 29 pts, generation CB...
April 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27909479/atrial-fibrillation-ablation-in-adults-with-repaired-congenital-heart-disease
#5
REVIEW
Marta Acena Md, Ignasi Anguera Md PhD, Paolo D Dallaglio Md, Marcos Rodriguez Md, Xavier Sabaté Md PhD
The incidence of atrial fibrillation (AF) in congenital heart disease (CHD) adults has increased in the past decades due to a longer life expectancy of this population where the subjects are exposed to cardiac overflow, overpressure and structural changes for years. The literature regarding AF ablation in repaired CHD adults emphasizes the importance of intracardiac echocardiography (ICE) to perform the transseptal puncture and the ablation procedure in the left atrium (LA), both effectively and safely. In small case control studies, where the predominant congenital cardiomyopathy was the atrial septal defect, the most common strategy for ablation was antral isolation of the pulmonary veins showing results, at one year follow-up, similar to those in the general population...
February 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/27908250/hypoglycemia-and-cardiac-arrhythmia-mechanisms-evidence-base-and-current-recommendations
#6
Sitara Gulrukh Khan, Mohammed Shahriar Huda
BACKGROUND: With the use of intensive insulin therapy and insulin secretagogues to optimize glycemic control in diabetes, hypoglycemia continues to present a clinical challenge. Hypoglycemia has been implicated in nocturnal sudden death in type 1 diabetes, and the mechanism underlying this is postulated to be cardiac arrhythmia. OBJECTIVE: This article reviews the evidence surrounding hypoglycemia and cardiac arrhythmia. METHODS: A structured search of the Pubmed bibliographic database was undertaken, and relevant peer-reviewed articles on the topic were included in the review...
December 1, 2016: Current Diabetes Reviews
https://www.readbyqxmd.com/read/27907850/automated-annotation-and-quantitative-description-of-ultrasound-videos-of-the-fetal-heart
#7
Christopher P Bridge, Christos Ioannou, J Alison Noble
Interpretation of ultrasound videos of the fetal heart is crucial for the antenatal diagnosis of congenital heart disease (CHD). We believe that automated image analysis techniques could make an important contribution towards improving CHD detection rates. However, to our knowledge, no previous work has been done in this area. With this goal in mind, this paper presents a framework for tracking the key variables that describe the content of each frame of freehand 2D ultrasound scanning videos of the healthy fetal heart...
November 19, 2016: Medical Image Analysis
https://www.readbyqxmd.com/read/27906101/characterization-of-a-dmd-egfp-reporter-mouse-as-a-tool-to-investigate-dystrophin-expression
#8
Mina V Petkova, Susanne Morales-Gonzales, Karima Relizani, Esther Gill, Franziska Seifert, Josefine Radke, Werner Stenzel, Luis Garcia, Helge Amthor, Markus Schuelke
BACKGROUND: Dystrophin is a rod-shaped cytoplasmic protein that provides sarcolemmal stability as a structural link between the cytoskeleton and the extracellular matrix via the dystrophin-associated protein complex (DAPC). Mutations in the dystrophin-encoding DMD gene cause X-linked dystrophinopathies with variable phenotypes, the most severe being Duchenne muscular dystrophy (DMD) characterized by progressive muscle wasting and fibrosis. However, dystrophin deficiency does not only impair the function of skeletal and heart muscle but may also affect other organ systems such as the brain, eye, and gastrointestinal tract...
July 5, 2016: Skeletal Muscle
https://www.readbyqxmd.com/read/27904925/breaking-sitting-with-light-activities-vs-structured-exercise-a-randomised-crossover-study-demonstrating-benefits-for-glycaemic-control-and-insulin-sensitivity-in-type-2-diabetes
#9
Bernard M F M Duvivier, Nicolaas C Schaper, Matthijs K C Hesselink, Linh van Kan, Nathalie Stienen, Bjorn Winkens, Annemarie Koster, Hans H C M Savelberg
AIMS/HYPOTHESIS: We aimed to examine the effects of breaking sitting with standing and light-intensity walking vs an energy-matched bout of structured exercise on 24 h glucose levels and insulin resistance in patients with type 2 diabetes. METHODS: In a randomised crossover study, 19 patients with type 2 diabetes (13 men/6 women, 63 ± 9 years old) who were not using insulin each followed three regimens under free-living conditions, each lasting 4 days: (1) Sitting: 4415 steps/day with 14 h sitting/day; (2) Exercise: 4823 steps/day with 1...
December 1, 2016: Diabetologia
https://www.readbyqxmd.com/read/27904846/complete-congenital-heart-block-in-a-neonate-with-a-complex-congenital-heart-defect-in-africa
#10
Clovis Nkoke, Edvine Yonta Wawo, Liliane Kuate Mfeukeu, Larissa Makamte, Sandrine Dikosso Edie, Flore Esiene Balana
Congenital heart block (CHB) is rare disorder that has a higher mortality when associated with structural congenital heart defects. Very few cases have been reported in Sub-Saharan Africa (SSA). We present a case of complete CHB associated with a complex congenital heart defect in a neonate in Cameroon. A 1-month-old neonate in Cameroon was referred for the evaluation of bradycardia. The obstetrical ultrasound done during pregnancy revealed fetal bradycardia without further evaluation. Clinical examination showed well a developed neonate with bradycardia at 62 beats/minute, and mild cyanosis with oxygen saturation at 93% at room air...
October 2016: Cardiovascular Diagnosis and Therapy
https://www.readbyqxmd.com/read/27903369/-go-hand-in-hand-compose-a-new-chapter-the-guiding-value-of-multiple-imaging-modalities-on-the-interventional-treatment-of-structural-heart-disease
#11
S H Zhao
No abstract text is available yet for this article.
October 24, 2016: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/27903111/electric-stimulation-enhances-cardiac-differentiation-of-human-induced-pluripotent-stem-cells-for-myocardial-infarction-therapy
#12
Ruilian Ma, Jialiang Liang, Wei Huang, Linlin Guo, WenFeng Cai, Lei Wang, Christian Paul, Huang-Tian Yang, Ha Won Kim, Yigang Wang
AIM: Electrical stimulation (EleS) can promote cardiac differentiation, but the underlying mechanism is not well known. This study investigated the effect of EleS on cardiomyocyte (CM) differentiation of human induced pluripotent stem cells (hiPSCs) and evaluated the therapeutic effects for the treatment of myocardial infarction (MI). RESULTS: Cardiac differentiation of hiPSCs was induced with EleS after embryoid body formation. Spontaneously beating hiPSCs were observed as early at 2 days when treated with EleS as compared to control treatment...
November 30, 2016: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/27900454/intact-imaging-of-human-heart-structure-using-x-ray-phase-contrast-tomography
#13
Yukihiro Kaneko, Gen Shinohara, Masato Hoshino, Hiroyuki Morishita, Kiyozo Morita, Yoshihiro Oshima, Masashi Takahashi, Naoto Yagi, Yutaka Okita, Takuro Tsukube
Structural examination of human heart specimens at the microscopic level is a prerequisite for understanding congenital heart diseases. It is desirable not to destroy or alter the properties of such specimens because of their scarcity. However, many of the currently available imaging techniques either destroy the specimen through sectioning or alter the chemical and mechanical properties of the specimen through staining and contrast agent injection. As a result, subsequent studies may not be possible. X-ray phase-contrast tomography is an imaging modality for biological soft tissues that does not destroy or alter the properties of the specimen...
November 30, 2016: Pediatric Cardiology
https://www.readbyqxmd.com/read/27900330/structural-comparison-between-the-right-and-left-atrial-appendages-using-multidetector-computed-tomography
#14
Koichi Shinoda, Shogo Hayashi, Daisuke Fukuoka, Ryo Torii, Tsuneo Watanabe, Takashi Nakano
The three-dimensional (3D) structures of the right atrial appendage (RAA) and left atrial appendage (LAA) were compared to clarify why thrombus formation less frequently occurs in RAA than in LAA. Morphological differences between RAA and LAA of 34 formalin-preserved cadaver hearts were investigated. Molds of RAA and LAA specimens were made and the neck areas, volumes of the atrial appendages (AA), and amount of pectinate muscles (PMs) were analyzed using multidetector computed tomography. In RAA, most PMs were connected to one another and formed a "dendritic" appearance and the inner surface area was smaller than in LAA...
2016: BioMed Research International
https://www.readbyqxmd.com/read/27899864/right-ventricle-mimics-right-atrium-at-first-glance-a-rare-case-of-congenital-right-sided-partial-pericardial-defect
#15
Meitzu Wang, Tien-Yu Chang, Wei-Hsian Yin, Yung-Nien Yang
Among heart irregularities, congenital pericardial defect is an unusual anomaly, and is typically left dominant. However, cases of right pericardial defect with heart herniation are extremely rare. This is a case of congenital right pericardial defect with herniation of the right ventricle free wall and right ventricular outflow tract. The patient is asymptomatic and refused further intervention but even indolent discomfort underscores the risks of iatrogenic injuries to the heart and sudden death caused by mechanical pathogenesis due to changes in anatomical positions of the cardiac structures...
November 2016: Acta Cardiologica Sinica
https://www.readbyqxmd.com/read/27899284/defective-lymphatic-valve-development-and-chylothorax-in-mice-with-a-lymphatic-specific-deletion-of-connexin43
#16
Stephanie J Munger, Michael J Davis, Alexander M Simon
Lymphatic valves (LVs) are cusped luminal structures that permit the movement of lymph in only one direction and are therefore critical for proper lymphatic vessel function. Congenital valve aplasia or agenesis can, in some cases, be a direct cause of lymphatic disease. Knowledge about the molecular mechanisms operating during the development and maintenance of LVs may thus aid in the establishment of novel therapeutic approaches to treat lymphatic disorders. In this study, we examined the role of Connexin43 (Cx43), a gap junction protein expressed in lymphatic endothelial cells (LECs), during valve development...
November 26, 2016: Developmental Biology
https://www.readbyqxmd.com/read/27899163/human-fetal-and-adult-epicardial-derived-cells-a-novel-model-to-study-their-activation
#17
Asja T Moerkamp, Kirsten Lodder, Tessa van Herwaarden, Esther Dronkers, Calinda K E Dingenouts, Fredrik C Tengström, Thomas J van Brakel, Marie-José Goumans, Anke M Smits
BACKGROUND: The epicardium, a cell layer covering the heart, plays an important role during cardiogenesis providing cardiovascular cell types and instructive signals, but becomes quiescent during adulthood. Upon cardiac injury the epicardium is activated, which includes induction of a developmental gene program, epithelial-to-mesenchymal transition (EMT) and migration. However, the response of the adult epicardium is suboptimal compared to the active contribution of the fetal epicardium to heart development...
November 29, 2016: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/27898729/rna-contaminates-glycosaminoglycans-extracted-from-cells-and-tissues
#18
Jasper J van Gemst, Markus A Loeven, Mark J J de Graaf, Jo H M Berden, Ton J Rabelink, Cornelis H Smit, Johan van der Vlag
Glycosaminoglycans (GAGs) are linear negatively charged polysaccharides and important components of extracellular matrices and cell surface glycan layers such as the endothelial glycocalyx. The GAG family includes sulfated heparin, heparan sulfate (HS), dermatan sulfate (DS), chondroitin sulfate (CS), keratan sulfate, and non-sulfated hyaluronan. Because relative expression of GAGs is dependent on cell-type and niche, isolating GAGs from cell cultures and tissues may provide insight into cell- and tissue-specific GAG structure and functions...
2016: PloS One
https://www.readbyqxmd.com/read/27898719/myocardial-gene-expression-profiling-to-predict-and-identify-cardiac-allograft-acute-cellular-rejection-the-get-study
#19
Diane Bodez, Hakim Hocini, Nicolas Tchitchek, Pascaline Tisserand, Nicole Benhaiem, Caroline Barau, Mounira Kharoubi, Aziz Guellich, Soulef Guendouz, Costin Radu, Jean-Paul Couetil, Bijan Ghaleh, Jean-Luc Dubois-Randé, Emmanuel Teiger, Luc Hittinger, Yves Levy, Thibaud Damy
AIMS: Serial invasive endomyocardial biopsies (EMB) remain the gold standard for acute cellular rejection (ACR) diagnosis. However histological grading has several limitations. We aimed to explore the value of myocardial Gene Expression Profiling (GEP) for diagnosing and identifying predictive biomarkers of ACR. METHODS: A case-control study nested within a retrospective heart transplant patients cohort included 126 patients with median (IQR) age 50 (41-57) years and 111 (88%) males...
2016: PloS One
https://www.readbyqxmd.com/read/27896622/caveolin-proteins-a-molecular-insight-into-disease
#20
REVIEW
Hongli Yin, Tianyi Liu, Ying Zhang, Baofeng Yang
Caveolae are a kind of specific cystic structures of lipid rafts in the cytoplasmic membrane and are rich in cholesterol and sphingolipids. In recent years, many researchers have found that both caveolins and caveolae play a role in the development of various human diseases, including coronary heart disease, hypertension, and nervous system disorders. The specific mechanisms by which caveolins induce diseases have been a topic of interest. However, a number of detailed molecular mechanisms remain poorly understood...
November 28, 2016: Frontiers of Medicine
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