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https://www.readbyqxmd.com/read/29156869/impact-of-ggcx-polymorphisms-on-warfarin-dose-requirements-in-atrial-fibrillation-patients
#1
Nian-Xin Jiang, Ying-Hui Xu, Jing-Wen Xia, Bing Jiang, Yan-Song Li
Background/aim: Warfarin is a common anticoagulant with large interindividual differences and a narrow therapeutic range. The polymorphisms of gamma-glutamyl carboxylase (GGCX) are important genetic factors for warfarin dose requirements. Materials and methods: Polymerase chain reaction and direct sequencing methods were used to detect the GGCX rs699664 genotype in 215 atrial fibrillation (AF) patients with warfarin administration. The effects on warfarin dose by different genotypes were analyzed. A warfarin dosing algorithm was developed based on age, height, CYP2C9, VKORC1, and GGCX genotype...
August 23, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/29156571/studies-for-improving-a-rat-model-of-alzheimer-s-disease-icv-administration-of-well-characterized-%C3%AE-amyloid-1-42-oligomers-induce-dysfunction-in-spatial-memory
#2
Ágnes Kasza, Botond Penke, Zsuzsanna Frank, Zsolt Bozsó, Viktor Szegedi, Ákos Hunya, Klaudia Németh, Gábor Kozma, Lívia Fülöp
During the past 15 years, several genetically altered mouse models of human Alzheimer's disease (AD) have been developed. These costly models have greatly facilitated the evaluation of novel therapeutic approaches. Injecting synthetic β-amyloid (Aβ) 1-42 species into different parts of the brain of non-transgenic rodents frequently provided unreliable results, owing to a lack of a genuine characterization of the administered Aβ aggregates. Previously, we have published a new rat AD-model in which protofibrillar-fibrillar Aβ1-42 was administered into rat entorhinal cortex (Sipos 2007)...
November 18, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29156015/european-prospective-multicentre-study-of-hybrid-thoracoscopic-and-transcatheter-ablation-of-persistent-atrial-fibrillation-the-historic-af-trial
#3
Claudio Muneretto, Gianluigi Bisleri, Fabrizio Rosati, Ralf Krakor, Laura Giroletti, Lorenzo Di Bacco, Alberto Repossini, Massimo Moltrasio, Antonio Curnis, Claudio Tondo, Gianluca Polvani
OBJECTIVES: The HISTORIC-AF trial is a prospective, multicentre, single-arm study designed to evaluate the outcomes of a staged endoscopic and transcatheter ablation in patients with stand-alone, persistent or long-standing persistent atrial fibrillation (AF). METHODS: From 2012 to 2015, 100 consecutive patients were enrolled and underwent thoracoscopic left atrial epicardial isolation ('box lesion') followed by transcatheter ablation in case of AF recurrency. The safety end point was the composite outcome of freedom from major adverse events at 30-days, while efficacy end points were: (i) primary: freedom from AF and stable sinus rhythm following isolated thoracospic ablation >60% and (ii) secondary: freedom from AF and stable sinus rhythm >80% following hybrid ablation (as per HRS criteria)...
October 1, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/29155923/atrial-fibrillation-ablation-long-term-outcomes-is-there-light-at-the-end-of-the-tunnel
#4
Vikas Kuriachan, Carlos A Morillo
No abstract text is available yet for this article.
November 16, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29155887/effects-of-an-a%C3%AE-antibody-fragment-on-a%C3%AE-aggregation-and-astrocytic-uptake-are-modulated-by-apolipoprotein-e-and-j-mimetic-peptides
#5
Laia Montoliu-Gaya, Sandra D Mulder, Robert Veerhuis, Sandra Villegas
Aβ-Immunotherapy has long been studied in the treatment of Alzheimer's disease (AD), but not how other molecules involved in the disease can affect antibody performance. We previously designed an antibody fragment, scFv-h3D6, and showed that it precludes Aβ-induced cytotoxicity by withdrawing Aβ oligomers from the amyloid pathway towards a non-toxic, worm-like pathway. ScFv-h3D6 was effective at the behavioral, cellular, and molecular levels in the 3xTg-AD mouse model. Because scFv-h3D6 treatment restored apolipoprotein E (apoE) and J (apoJ) concentrations to non-pathological values, and Aβ internalization by glial cells was found to be decreased in the presence of these apolipoproteins, we now aimed to test the influence of scFv-h3D6 on Aβ aggregation and cellular uptake by primary human astrocytes in the presence of therapeutic apoE and apoJ mimetic peptides (MPs)...
2017: PloS One
https://www.readbyqxmd.com/read/29155884/the-importance-of-mean-time-in-therapeutic-range-for-complication-rates-in-warfarin-therapy-of-patients-with-atrial-fibrillation-a-systematic-review-and-meta-regression-analysis
#6
Anne Sig Vestergaard, Flemming Skjøth, Torben Bjerregaard Larsen, Lars Holger Ehlers
BACKGROUND: \Anticoagulation is used for stroke prophylaxis in non-valvular atrial fibrillation, amongst other by use of the vitamin K antagonist, warfarin. Quality in warfarin therapy is often summarized by the time patients spend within the therapeutic range (percent time in therapeutic range, TTR). The correlation between TTR and the occurrence of complications during warfarin therapy has been established, but the influence of patient characteristics in that respect remains undetermined...
2017: PloS One
https://www.readbyqxmd.com/read/29155738/imaging-amyloid-tissues-stained-with-luminescent-conjugated-oligothiophenes-by-hyperspectral-confocal-microscopy-and-fluorescence-lifetime-imaging
#7
Sofie Nyström, Marcus Bäck, K Peter R Nilsson, Per Hammarström
Proteins that deposit as amyloid in tissues throughout the body can be the cause or consequence of a large number of diseases. Among these we find neurodegenerative diseases such as Alzheimer's and Parkinson's disease afflicting primarily the central nervous system, and systemic amyloidosis where serum amyloid A, transthyretin and IgG light chains deposit as amyloid in liver, carpal tunnel, spleen, kidney, heart, and other peripheral tissues. Amyloid has been known and studied for more than a century, often using amyloid specific dyes such as Congo red and Thioflavin T (ThT) or Thioflavin (ThS)...
October 20, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29155027/serum-level-of-transforming-growth-factor-beta-1-is-associated-with-left-atrial-voltage-in-patients-with-chronic-atrial-fibrillation
#8
Shilu Zhao, Mingfang Li, Weizhu Ju, Lingyun Gu, Fengxiang Zhang, Hongwu Chen, Kai Gu, Bing Yang, Minglong Chen
BACKGROUND: Atrial tissue fibrosis can cause electrical or structural remodeling in patients with atrial fibrillation. Transforming growth factor beta 1(TGF-β1) signaling acts as a central role in fibroblast activation. In this report, we aimed to investigate the relationship between serum level of TGF-β1 and mean left atrial voltage in patients with chronic atrial fibrillation (CAF). METHODS: A total of 16 consecutive adult patients with CAF who underwent catheter ablation were enrolled...
November 15, 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29154815/vitamin-d-and-new-onset-atrial-fibrillation-a-meta-analysis-of-randomized-controlled-trials
#9
REVIEW
Wei-Ling Huang, Jun Yang, Jian Yang, Hui-Bo Wang, Chao-Jun Yang, Ying Yang
OBJECTIVES: To research vitamin D levels in the prevention of new-onset atrial fibrillation(AF), we conducting a systematic review of randomised controlled trials (RCTs). METHODS: The MEDLINE, EMBASE and Cochrane Library were searched for English-language RCTs published before September 2016.We focus on the vitamin D levels in the prevention of new-onset AF. The outcomes assessed were vitamin D levels, left ventricular ejection fraction (LVEF) and Left atrium diameter...
November 14, 2017: Hellenic Journal of Cardiology: HJC, Hellēnikē Kardiologikē Epitheōrēsē
https://www.readbyqxmd.com/read/29154445/long-term-cardiovascular-morbidity-and-mortality-in-patients-treated-for-differentiated-thyroid-cancer
#10
Nelli Pajamäki, Saara Metso, Tommi Hakala, Tapani Ebeling, Heini Huhtala, Essi Ryödi, Juhani Sand, Arja Jukkola-Vuorinen, Pirkko-Liisa Kellokumpu-Lehtinen, Pia Jaatinen
OBJECTIVE: Thyroid hormone suppression therapy has been widely used in the treatment of thyroid cancer, but concerns have been raised about the cardiovascular risks of this treatment. The objective of this study was to evaluate long-term cardiovascular morbidity and mortality in patients treated for differentiated thyroid cancer (DTC) and to assess the effect of TSH suppression and radioiodine (RAI) treatment on the cardiovascular outcome. DESIGN: Retrospective cohort study...
November 20, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/29153994/incident-atrial-fibrillation-and-the-risk-of-congestive-heart-failure-myocardial-infarction-end-stage-kidney-disease-and-mortality-among-patients-with-a-decreased%C3%A2-estimated-gfr
#11
David Massicotte-Azarniouch, John Paul Kuwornu, Juan-Jesus Carrero, Ngan N Lam, Amber O Molnar, Deborah Zimmerman, Megan K McCallum, Amit X Garg, Manish M Sood
BACKGROUND: The association of atrial fibrillation (AF), estimated glomerular filtration rate (eGFR), and adverse events. STUDY DESIGN: Population-based retrospective cohort study from Ontario, Canada. SETTING & PARTICIPANTS: 1,422,978 million adult residents with eGFRs < 90mL/min/1.73m(2) from April 1, 2006, through March 31, 2015. FACTOR: A diagnosis of AF at hospitalization. OUTCOMES: Congestive heart failure (CHF), myocardial infarction (MI), end-stage kidney disease, all-cause mortality...
November 16, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/29153773/spectrum-and-outcome-of-patients-who-have-undergone-implantation-of-an-implantable-cardioverter-defibrillator-after-aborted-sudden-cardiac-arrest
#12
Fabrice Extramiana, Benjamin Stordeur, Vincent Furioli, Estelle Gandjbakhch, Nicolas Lellouche, Vincent Algalarrondo, Emilie Varlet, Anne Messali, Eloi Marijon, Antoine Leenhardt
Most of implantable cardioverter defibrillator (ICD) secondary prevention studies have been published 2 decades ago. We aimed to describe a contemporary cohort of patients who have undergone implantation of an ICD after an aborted-sudden cardiac arrest (SCA). We retrospectively evaluated consecutive patients referred to our centers between 2005 and 2013. Predictors of overall mortality or heart transplant were analyzed using Cox proportional hazards models. A total of 250 patients (76.4% male, 48.7 ± 16...
October 20, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29153771/outcome-of-patients-with-in-hospital-ventricular-tachycardia-and-ventricular-fibrillation-arrest-while-using-a-wearable-cardioverter-defibrillator
#13
Kenneth A Ellenbogen, Chingping Wan, David M Shavelle
In-hospital sudden cardiac arrests occurring during nighttime and weekend hours or within unmonitored hospital areas have been reported to have a poorer outcomes than monitored cardiac arrest. This study sought to assess the outcome of in-hospital ventricular tachycardia (VT) and ventricular fibrillation (VF) arrest by time of day, day of week, and within-hospital location when using a wearable cardioverter defibrillator (WCD). We retrospectively identified and reviewed consecutive in-hospital VT/VF arrests from January 2011 to May 2015 experienced by patients wearing a WCD using the manufacturer's postmarket registry...
November 16, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29153742/direct-oral-anticoagulants-for-japanese-atrial-fibrillation-in-the-elderly
#14
EDITORIAL
Yusuke Kondo, Keitaro Senoo, Yoshio Kobayashi
No abstract text is available yet for this article.
November 16, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/29153741/left-atrial-function-in-patients-with-light-chain-amyloidosis-a-transthoracic-3d-speckle-tracking-imaging-study
#15
Dania Mohty, Vincent Petitalot, Julien Magne, Bahaa M Fadel, Cyrille Boulogne, Dounia Rouabhia, Chahrazed ElHamel, David Lavergne, Thibaud Damy, Victor Aboyans, Arnaud Jaccard
BACKGROUND: Systemic light chain amyloidosis (AL) is characterized by the extracellular deposition of amyloid fibrils. Transthoracic echocardiography is the modality of choice to assess cardiac function in patients with AL. Whereas left ventricular (LV) function has been well studied in this patient population, data regarding the value of left atrial (LA) function in AL patients are lacking. In this study, we aim to examine the impact of LA volumes and function on survival in AL patients as assessed by real-time 3D echocardiography...
November 16, 2017: Journal of Cardiology
https://www.readbyqxmd.com/read/29153576/coronary-artery-calcium-and-long-term%C3%A2-risk-of-death-myocardial%C3%A2-infarction-and-stroke-the-walter-reed-cohort-study
#16
Joshua D Mitchell, Robert Paisley, Patrick Moon, Eric Novak, Todd C Villines
OBJECTIVES: This study aimed to assess the long-term risk of death and atherosclerotic cardiovascular disease (ASCVD) outcomes, including stroke, in a real-world cohort that underwent coronary artery calcium (CAC) scoring. BACKGROUND: Large-scale, long-term studies assessing the independent relationship of CAC for prediction of ASCVD events, to include stroke, in young, low-risk patients are uncommon outside of the clinical trial setting. METHODS: A total of 23,637 consecutive subjects without ASCVD who underwent CAC scoring from 1997 to 2009 were studied...
November 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29153561/use-of-atrial-strain-to-predict-atrial-fibrillation-after-cerebral-ischemia
#17
Faraz Pathan, Eswar Sivaraj, Kazuaki Negishi, Rifly Rafiudeen, Shahab Pathan, Nicholas D'Elia, John Galligan, Samuel Neilson, Ricardo Fonseca, Thomas H Marwick
OBJECTIVES: This study sought to identify whether atrial strain could be used as an imaging biomarker to predict atrial fibrillation (AF). BACKGROUND: AF is found in up to 30% of cryptogenic cerebrovascular accidents (CVAs), which themselves account for 30% to 40% of ischemic CVA. METHODS: This observational study evaluated all patients who had an echocardiogram (transthoracic echocardiogram [TTE]) following presentation with cryptogenic CVA from 2010 to 2014...
November 10, 2017: JACC. Cardiovascular Imaging
https://www.readbyqxmd.com/read/29153246/usefulness-of-the-american-heart-association-s-life-simple-7-to-predict-the-risk-of-atrial-fibrillation-from-the-reasons-for-geographic-and-racial-differences-in-stroke-regards-study
#18
Parveen K Garg, Wesley T O'Neal, Adedotun Ogunsua, Evan L Thacker, George Howard, Elsayed Z Soliman, Mary Cushman
The American Heart Association has identified metrics of ideal cardiovascular (CV) health known as Life's Simple 7 (LS7). We determined the prospective relationship between the LS7 and the incident atrial fibrillation (AF) in a biracial cohort. The REasons for Geographic And Racial Differences in Stroke (REGARDS) study enrolled non-Hispanic black and white adults 45 years or older. This analysis included 9,576 REGARDS participants (mean age 63 ± 8.4 years; 57% women; 30% black) who were free of AF at baseline and completed a follow-up examination 9...
October 19, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/29153212/-new-treatments-for-heart-failure
#19
Clément Venner, Olivier Huttin, Christine Selton-Suty, Yves Juillière
New direct oral anticoagulants are recommended as first-line therapy in case of atrial fibrillation within a heart failure. In the absence of atrial fibrillation, the role for new direct oral anticoagulants would have to be confirmed in the next years. Sacubitril/valsartan, angiotansin II receptor neprilysin inhibitor, presents with an efficacy superior to that of angiotensin converting enzyme inhibitors. It is now recommended in the treatment of heart failure as a third-line therapy. Modalities of prescription are strict, and safety is good...
November 2017: Soins; la Revue de Référence Infirmière
https://www.readbyqxmd.com/read/29153107/interictal-cardiac-autonomic-nervous-system-disturbances-in-dogs-with-idiopathic-epilepsy
#20
M Musteata, D Mocanu, G D Stanciu, M Armasu, G Solcan
Autonomic nervous system (ANS) activity in the interictal period (InIp) in dogs with presumed idiopathic epilepsy (pIE) was assessed using heart rate variability (HRV) analysis. The HRVs obtained from 28 pIE dogs with interictal epileptic discharges (InIEd; 11 with treatment and 17 without treatment) detected on electroencephalography (EEG) were compared with those obtained from 13 healthy dogs. On electrocardiographic (ECG) study, the P wave dispersion (PWD; P<0.001), P max (P=0.004) and corrected QT interval (QTc; P=0...
October 2017: Veterinary Journal
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