keyword
MENU ▼
Read by QxMD icon Read
search

Atrial Fibrillation Genes

keyword
https://www.readbyqxmd.com/read/29776386/impact-of-vkorc1-cyp4f2-and-nqo1-gene-variants-on-warfarin-dose-requirement-in-han-chinese-patients-with-catheter-ablation-for-atrial-fibrillation
#1
Jiao Li, Wenlong Yang, Zhonghui Xie, Kun Yu, Yuhua Chen, Kaijun Cui
BACKGROUND: The anticoagulation of atrial fibrillation catheter ablation during the perioperative stage does matter and should be treated with discretion. We aimed to assess impact of three important genes participating in vitamin K cycle (i.e. VKORC1 rs9923231, CYP4F2 rs2108622 and NQO1 rs1800566) on the daily stable warfarin dose requirement in Sichuan Han Chinese patients with catheter ablation of atrial fibrillation. METHODS: A total of 222 atrial fibrillation patients taking stable warfarin therapy after catheter ablation operation were enrolled in this study...
May 18, 2018: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/29754254/interplay-between-cardiac-transcription-factors-and-non-coding-rnas-in-predisposing-to-atrial-fibrillation
#2
REVIEW
Alexander T Mikhailov, Mario Torrado
There is growing evidence that putative gene regulatory networks including cardio-enriched transcription factors, such as PITX2, TBX5, ZFHX3, and SHOX2, and their effector/target genes along with downstream non-coding RNAs can play a potentially important role in the process of adaptive and maladaptive atrial rhythm remodeling. In turn, expression of atrial fibrillation-associated transcription factors is under the control of upstream regulatory non-coding RNAs. This review broadly explores gene regulatory mechanisms associated with susceptibility to atrial fibrillation-with key examples from both animal models and patients-within the context of both cardiac transcription factors and non-coding RNAs...
May 12, 2018: Journal of Molecular Medicine: Official Organ of the "Gesellschaft Deutscher Naturforscher und Ärzte"
https://www.readbyqxmd.com/read/29731429/electrophysiologic-characterization-of-calcium-handling-in-human-induced-pluripotent-stem-cell-derived-atrial-cardiomyocytes
#3
Mariana Argenziano, Erin Lambers, Liang Hong, Arvind Sridhar, Meihong Zhang, Brandon Chalazan, Ambili Menon, Eleonora Savio-Galimberti, Joseph C Wu, Jalees Rehman, Dawood Darbar
Human induced pluripotent stem cell (hiPSC)-derived atrial cardiomyocytes (CMs) hold great promise for elucidating underlying cellular mechanisms that cause atrial fibrillation (AF). In order to use atrial-like hiPSC-CMs for arrhythmia modeling, it is essential to better understand the molecular and electrophysiological phenotype of these cells. We performed comprehensive molecular, transcriptomic, and electrophysiologic analyses of retinoic acid (RA)-guided hiPSC atrial-like CMs and demonstrate that RA results in differential expression of genes involved in calcium ion homeostasis that directly interact with an RA receptor, chicken ovalbumin upstream promoter-transcription factor 2 (COUP-TFII)...
April 28, 2018: Stem Cell Reports
https://www.readbyqxmd.com/read/29723239/analysis-of-the-microrna-signature-in-left-atrium-from-patients-with-valvular-heart-disease-reveals-their-implications-in-atrial-fibrillation
#4
Rosa Doñate Puertas, Audrey Jalabert, Emmanuelle Meugnier, Vanessa Euthine, Philippe Chevalier, Sophie Rome
BACKGROUND: Among the potential factors which may contribute to the development and perpetuation of atrial fibrillation, dysregulation of miRNAs has been suggested. Thus in this study, we have quantified the basal expressions of 662 mature human miRNAs in left atrium (LA) from patients undergoing cardiac surgery for valve repair, suffering or not from atrial fibrillation (AF) by using TaqMan® Low Density arrays (v2.0). RESULTS: Among the 299 miRNAs expressed in all patients, 42 miRNAs had altered basal expressions in patients with AF...
2018: PloS One
https://www.readbyqxmd.com/read/29717772/connexin-43-reduces-susceptibility-to-sympathetic-atrial-fibrillation
#5
Beibei Luo, Yifei Yan, Zhiyu Zeng, Zhengnan Zhang, Haide Liu, Hao Liu, Jinyi Li, Weiqiang Huang, Jiangtao Wu, Yan He
Atrial fibrillation (AF) is the most common arrhythmia reported in clinical practice. Connexin 43 (Cx43) is a member of the connexin protein family, which serves important roles in signal transduction in vivo. The aim of the present study was to investigate the role of Cx43 in the induction and maintenance of atrial fibrillation by using an animal model of sympathomimetic atrial fibrillation. Cx43 was successfully knocked down in the myocardium with gene‑specific small interfering (si)RNA via lentiviral infection...
April 30, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29714131/functional-consequences-of-genetic-variation-in-sodium-channel-modifiers-in-early-onset-lone-atrial-fibrillation
#6
Federico Denti, Christian Paludan-Müller, Søren-Peter Olesen, Stig Haunsø, Jesper Hastrup Svendsen, Morten Salling Olesen, Bo Hjorth Bentzen, Nicole Schmitt
AIM: We investigated the effect of variants in genes encoding sodium channel modifiers SNTA1 and GPD1L found in early onset atrial fibrillation (AF) patients. PATIENTS & METHODS: Genetic screening in patients with early onset lone AF revealed three variants in GPD1L and SNTA1 in three AF patients. Functional analysis was performed by patch-clamp electrophysiology. RESULTS: Co-expression of GPD1L or its p.A326E variant with NaV 1.5 did not alter INa density or current kinetics...
March 2018: Personalized Medicine
https://www.readbyqxmd.com/read/29706494/is-there-a-role-for-genes-in-exercise-induced-atrial-cardiomyopathy
#7
REVIEW
Diane Fatkin, Charles D Cox, Inken G Huttner, Boris Martinac
In endurance athletes, prolonged high intensity exercise participation can have deleterious effects on the myocardium with subsequent structural and electrical remodelling. In a subset of athletes, there is a predilection for atrial involvement and the risk of atrial fibrillation (AF) is increased. The mechanisms underpinning exercise-induced atrial cardiomyopathy have yet to be fully elucidated and the contribution of an individual's genetic makeup is unknown. Some athletes may have rare genetic variants that are sufficient to cause AF irrespective of exercise exposure...
April 9, 2018: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/29692210/caffeine-intake-reduces-incident-atrial-fibrillation-at-a-population-level
#8
Edoardo Casiglia, Valérie Tikhonoff, Federica Albertini, Federica Gasparotti, Alberto Mazza, Martina Montagnana, Elisa Danese, Marco Benati, Paolo Spinella, Paolo Palatini
Background The general belief is that caffeine increases the risk of hyperkinetic arrhythmias, including atrial fibrillation. The aim of this study is to investigate the effect of chronic caffeine intake on incident atrial fibrillation in general population. Design and methods A population cohort of 1475 unselected men and women observed for 12 years and left free to intake food or beverages containing caffeine was studied. Subjects were stratified into tertiles of caffeine intake both in the whole cohort and after genotyping for the -163C > A polymorphism of the CYP1A2 gene, regulating caffeine metabolism...
January 1, 2018: European Journal of Preventive Cardiology
https://www.readbyqxmd.com/read/29691431/biological-insights-into-muscular-strength-genetic-findings-in-the-uk-biobank
#9
Emmi Tikkanen, Stefan Gustafsson, David Amar, Anna Shcherbina, Daryl Waggott, Euan A Ashley, Erik Ingelsson
We performed a large genome-wide association study to discover genetic variation associated with muscular strength, and to evaluate shared genetic aetiology with and causal effects of muscular strength on several health indicators. In our discovery analysis of 223,315 individuals, we identified 101 loci associated with grip strength (P <5 × 10-8 ). Of these, 64 were associated (P < 0.01 and consistent direction) also in the replication dataset (N = 111,610). eQTL analyses highlighted several genes known to play a role in neuro-developmental disorders or brain function, and the results from meta-analysis showed a significant enrichment of gene expression of brain-related transcripts...
April 24, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29676832/circulating-mirnas-in-acute-new-onset-atrial-fibrillation-and-their-target-mrna-network
#10
Ananília Medeiros Gomes da Silva, Jéssica Nayara Góes de Araújo, Katiene Macêdo de Oliveira, Ana Eloísa Melo Novaes, Mariana Borges Lopes, Júlio César Vieira de Sousa, Antônio Amorim de Araújo Filho, André Ducati Luchessi, Adriana Augusto de Rezende, Mário Hiroyuki Hirata, Vivian Nogueira Silbiger
BACKGROUND: MicroRNAs (miRNAs) are involved in the pathogenesis of atrial fibrillation (AF), acting on development and progression. Our pilot study investigated the expression of six miRNAs and their miRNA-mRNA interactions in patients with acute new-onset AF, well-controlled AF, and normal sinus rhythm (controls). METHODS AND RESULTS: Plasma of acute new-onset AF patients (n = 5) was collected in the emergency room when patients presented with irregular and fast-atrial fibrillation rhythm...
April 20, 2018: Journal of Cardiovascular Electrophysiology
https://www.readbyqxmd.com/read/29671888/whole-exome-sequencing-reveals-microsatellites-dna-markers-for-response-to-dofetilide-initiation-in-patients-with-persistent-atrial-fibrillation-a-pilot-study
#11
Nick Kinney, Timothy R Larsen, David M Kim, Robin T Varghese, Steven Poelzing, Harold R Garner, Soufian T AlMahameed
BACKGROUND: Dofetilide is a class III antiarrhythmic drug effective for the treatment of atrial fibrillation (AF). Dofetilide initiation (DI) associate with corrected QT (QTc) interval prolongation. Significant QTc prolongation during DI mandates dose adjustment or discontinuation of the drug. Microsatellite DNA are novel genetic markers associate with congenital and acquired health conditions. OBJECTIVE: The purpose of this study was to explore potential genetic markers for QTc prolongation in response to DI in patients with persistent AF METHODS: We performed Whole Exome sequencing in a cohort of patients with persistent AF undergoing DI...
April 19, 2018: Clinical Cardiology
https://www.readbyqxmd.com/read/29658562/microrna%C3%A2-34a-mediates-atrial-fibrillation-through-regulation-of-ankyrin%C3%A2-b-expression
#12
Yun Zhu, Zezhou Feng, Wei Cheng, Yingbin Xiao
Atrial fibrillation (AF) has a high prevalence and recurrence rate, and is associated with substantial mortality. However, its underlying mechanisms are not thoroughly understood. Increasing attention has been paid to the roles of microRNAs (miRs) in the pathogenesis of cardiovascular disease, including miR‑1 and miR‑133 (in the electrophysiological response), and miR‑34a (in cardiac fibrosis). Recently, Ankyrin‑B (Ank‑B), an adaptor protein, has been demonstrated to be associated with AF. As a predicted target gene of miR‑34a, the present study aimed to investigate if miR‑34a has a role in AF via regulation of Ank‑B expression...
April 12, 2018: Molecular Medicine Reports
https://www.readbyqxmd.com/read/29652295/retraction-is-endothelin-gene-polymorphism-associated-with-postoperative-atrial-fibrillation-in-patients-undergoing-coronary-artery-bypass-grafting
#13
(no author information available yet)
[This retracts the article DOI: 10.4103/aca.ACA_264_16].
April 2018: Annals of Cardiac Anaesthesia
https://www.readbyqxmd.com/read/29652036/clinical-effects-of-selective-drug-regulating-vagus-nerve-signal-pathway-in-vagally-mediated-atrial-fibrillation
#14
Xue Lou, Yanmei Lu, Baopeng Tang, Xianhui Zhou
BACKGROUND The cardiac autonomic nervous system plays a crucial role in genesis and development of atrial fibrillation (AF) through the G protein signal transduction pathway. Therefore, intervening in the G protein signal transduction pathway may be a new "selective drug" method to regulate autonomic nerve activity to prevent vagally-mediated AF. MATERIAL AND METHODS Seventeen adult beagles were randomized into 3 groups: shame-operation control group (group A, n=5), empty vector gene control group (group B, n=6), and Gαi2ctp gene experimental group (group C, n=6)...
April 13, 2018: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29648634/personalizing-therapy-for-atrial-fibrillation-the-role-of-stem-cell-and-in-silico-disease-models
#15
Scott Barichello, Jason D Roberts, Peter Backx, Patrick Boyle, Zachary Laksman
Atrial fibrillation (AF) is the most common cardiac arrhythmia and is associated with substantial morbidity. There is considerable inter-patient variability in the pathologic processes that promote AF, and this variability likely has a significant genetic basis. Clinically this is reflected by the observation that anti-arrhythmic drugs (AADs) and interventional procedures have highly variable efficacy, and this highlights the need for adopting a more efficacious personalized approach. We explore recent advancements in both in silico and stem cell disease models that set the stage for a personalized approach...
April 10, 2018: Cardiovascular Research
https://www.readbyqxmd.com/read/29619932/mortality-and-morbidity-in-patients-with-osteogenesis-imperfecta-in-denmark
#16
Lars Folkestad
Ostegenesis imperfecta (OI) is a hereditary disease of the connective tissue caused by mutations to, mainly, the genes that are involved in the biosynthesis of collagen type 1. Patients are grouped according to clinical severity and mode of inheritance according to Sillence's classification (originally 1979, updated 2014). According to our data, the population prevalence of OI in Denmark was 10.3 per 100,000, with 575 patients registered with an OI diagnosis in the National Patient Register and alive at the end of 2012 out of a total population of 5,602,628 persons...
April 2018: Danish Medical Journal
https://www.readbyqxmd.com/read/29606886/influence-of-abcb1-and-cyp3a5-gene-polymorphisms-on-pharmacokinetics-of-apixaban-in-patients-with-atrial-fibrillation-and-acute-stroke
#17
Alexander Valerevich Kryukov, Dmitry Alekseevich Sychev, Denis Anatolevich Andreev, Kristina Anatolievna Ryzhikova, Elena Anatolievna Grishina, Anastasia Vladislavovna Ryabova, Mark Alekseevich Loskutnikov, Valeriy Valerevich Smirnov, Olga Dmitrievna Konova, Irina Andreevna Matsneva, Pavel Olegovich Bochkov
Introduction: Difficulties in non-vitamin K anticoagulant (NOAC) administration in acute stroke can be associated with changes in pharmacokinetic parameters of NOAC such as biotransformation, distribution, and excretion. Therefore, obtaining data on pharmacokinetics of NOAC and factors that affect it may help develop algorithms for personalized use of this drug class in patients with acute cardioembolic stroke. Patients and methods: Pharmacokinetics of apixaban in patients with acute stroke was studied earlier by Kryukov et al...
2018: Pharmacogenomics and Personalized Medicine
https://www.readbyqxmd.com/read/29590334/a-rare-missense-mutation-in-myh6-associates-with-non-syndromic-coarctation-of-the-aorta
#18
Thorsteinn Bjornsson, Rosa B Thorolfsdottir, Gardar Sveinbjornsson, Patrick Sulem, Gudmundur L Norddahl, Anna Helgadottir, Solveig Gretarsdottir, Audur Magnusdottir, Ragnar Danielsen, Emil L Sigurdsson, Berglind Adalsteinsdottir, Sverrir I Gunnarsson, Ingileif Jonsdottir, David O Arnar, Hrodmar Helgason, Tomas Gudbjartsson, Daniel F Gudbjartsson, Unnur Thorsteinsdottir, Hilma Holm, Kari Stefansson
Aims: Coarctation of the aorta (CoA) accounts for 4-8% of congenital heart defects (CHDs) and confers substantial morbidity despite treatment. It is increasingly recognized as a highly heritable condition. The aim of the study was to search for sequence variants that affect the risk of CoA. Methods and results: We performed a genome-wide association study of CoA among Icelanders (120 cases and 355 166 controls) based on imputed variants identified through whole-genome sequencing...
March 24, 2018: European Heart Journal
https://www.readbyqxmd.com/read/29579189/cardiac-voltage-gated-sodium-channel-mutations-associated-with-left-atrial-dysfunction-and-stroke-in-children
#19
Adrien Moreau, Alexandre Janin, Gilles Millat, Philippe Chevalier
Aims: Cardiac atrial arrhythmias are the most common type of heart rhythm disorders. Its genetic elucidation remains challenging with poor understanding of cellular and molecular processes. These arrhythmias usually affect elderly population but in rare cases, young children may also suffer from such electrical diseases. Severe complications, including stroke, are commonly age related. This study aims to identify a genetic link between electro-mechanic atrial dysfunction and stroke in children...
March 22, 2018: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29578435/-the-role-of-marker-fibrosis-st2-and-angiotenzinogen-gene-polymorphism-in-heart-failure-progressing-in-patients-with-type-2-diabetes-mellitus
#20
I Rudyk, O Medentseva
Despite the progress in the treatment of HF, its prognosis remains disappointing primarily due to the fact that important subgroups of patients with HF are not sufficiently investigated. This also applies to patients with HF and background metabolic disorders, in particular, type 2 diabetes. It is known that the polymorphism of the rs699 marker of the M235T ATG gene is associated with a tendency to arterial hypertension, coronary heart disease and atrial fibrillation. A relationship was found between the polymorphism of M235T and the risk of HF development...
February 2018: Georgian Medical News
keyword
keyword
102865
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"