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https://www.readbyqxmd.com/read/28444195/dna-methylome-analysis-reveals-distinct-epigenetic-patterns-of-ascending-aortic-dissection-and-bicuspid-aortic-valve
#1
Sun Pan, Hao Lai, Yiru Shen, Charles Breeze, Stephan Beck, Tao Hong, Chunsheng Wang, Andrew E Teschendorff
Epigenetics may mediate the effects of environmental risk factors on disease, including heart disease. Thus, measuring the DNA methylome offers the opportunity to identify novel disease biomarkers and novel insights into disease mechanisms. The DNA methylation landscape of ascending aortic dissection (AD) and bicuspid aortic valve (BAV) with aortic aneurysmal dilatation remain uncharacterized. The present study aimed to explore the genome-wide DNA methylation landscape underpinning these two diseases. Methods and results: We used Illumina 450k DNA methylation beadarrays to analyze 21 ascending aorta samples, including 10 cases with AD, 5 with BAV and 6 healthy controls...
April 19, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28434646/factors-determining-aortic-valve-dysfunction-in-korean-subjects-with-a-bicuspid-aortic-valve
#2
Soo Youn Lee, Chi Young Shim, Darae Kim, Iksung Cho, Geu-Ru Hong, Jong-Won Ha, Namsik Chung
Bicuspid aortic valve (BAV) disease has a male predominance of approximately 3:1 and shows diverse presentations about aortic valve dysfunction. This study aimed to find independent determinants for significant aortic stenosis (AS) or significant aortic regurgitation (AR) in adults with BAV. We retrospectively investigated the medical records of 1,073 subjects (773 men, mean age 55 ± 14 years) who were first diagnosed with BAV disease by transthoracic echocardiography. We excluded 52 subjects with both significant AS and significant AR...
March 29, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28429692/pulmonary-artery-and-right-ventricle-function-in-patients-with-bicuspid-aortic-valve
#3
Çetin Geçmen, Gamze Babür Güler, Suzan Hatipoğlu, Muzaffer Kahyaoğlu, Murat Çap, Servet İzci, Çağatay Önal, Emrah Erdoğan, Aykun Hakgör, Özkan Candan, Arzu Kalaycı, Tuba Unkun, İbrahim Akın İzgi
OBJECTIVE: Bicuspid aortic valve (BAV) is a complex developmental anomaly caused by abnormal aortic leaflet formation during valvulogenesis. The present study is an assessment of the effects of BAV disease on the ascending aorta and pulmonary artery (PA), and an evaluation of the consequences for systolic and diastolic functioning of the left and right ventricles. METHODS: Total of 66 patients were eligible for inclusion. Pulmonary artery maximum diameter (PAD) was obtained 1 cm distal to the pulmonary annulus...
April 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28420669/a-possible-early-biomarker-for-bicuspid-aortopathy-circulating-transforming-growth-factor-beta-1-to-soluble-endoglin-ratio
#4
Amalia Forte, Ciro Bancone, Gilda Cobellis, Marianna Buonocore, Giuseppe Santarpino, Theodor Fischlein, Marilena Cipollaro, Marisa De Feo, Alessandro Della Corte
Rationale: The pathogenesis of bicuspid aortic valve (BAV)-associated aortopathy is poorly understood and no prognostic biomarker is currently available. Objective: We aimed to identify putative circulating biomarkers pathogenetically and prognostically linked to bicuspid aortopathy. Methods and Results: By RT-PCR, we evaluated gene expression variations (versus normal aorta) of transforming growth factor-beta1 (TGF-β1), connective tissue growth factor (CTGF), matrix metalloproteinase-2 (MMP-2), MMP-14, endoglin (ENG) and superoxide dismutase 3 (SOD3) in ascending aorta samples from 50 tricuspid and 70 BAV patients undergoing surgery for aortic stenosis (aorta diameter ≤45mm: BAVnon-dil or >45mm: BAVdil)...
April 18, 2017: Circulation Research
https://www.readbyqxmd.com/read/28399937/specific-circulating-microrna-signature-of-bicuspid-aortic-valve-disease
#5
Neus Martínez-Micaelo, Raúl Beltrán-Debón, Isabel Baiges, Marta Faiges, Josep M Alegret
BACKGROUND: We aimed to determine the circulating miRNA expression profile associated with BAV and aortic dilation to provide diagnostic and prognostic biomarkers for BAV and/or aortic dilation. METHODS AND RESULTS: We applied a miRNome-wide microarray approach using plasma samples (n = 24) from healthy tricuspid aortic valve individuals, BAV patients and BAV patients with aortic dilation to compare and identify the specific miRNAs associated with BAV and aortic dilation...
April 11, 2017: Journal of Translational Medicine
https://www.readbyqxmd.com/read/28390180/valve-mediated-hemodynamics-and-their-association-with-distal-ascending-aortic-diameter-in-bicuspid-aortic-valve-subjects
#6
Vrishank Raghav, Alex J Barker, Daniel Mangiameli, Lucia Mirabella, Michael Markl, Ajit P Yoganathan
PURPOSE: Valve mediated hemodynamics have been postulated to contribute to pathology of the ascending aorta (AAo). The objective of this study is to assess the association of aortic valve morphology and hemodynamics with downstream AAo size in subjects with bicuspid aortic valve (BAV) disease. MATERIALS AND METHODS: Four-dimensional flow MRI at 1.5 or 3 Tesla was used to evaluate the hemodynamics in the proximal AAo of 52 subjects: size-matched controls with tricuspid aortic valves (n = 24, mid ascending aorta [MAA] diameter = 38...
April 8, 2017: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/28387797/genetic-abnormalities-in-bicuspid-aortic-valve-root-phenotype-preliminary-results%C3%A2
#7
Evaldas Girdauskas, Lisa Geist, Kushtrim Disha, Iliaz Kazakbaev, Tatiana Groß, Solveig Schulz, Martin Ungelenk, Thomas Kuntze, Hermann Reichenspurner, Ingo Kurth
OBJECTIVES: Genetic defects associated with bicuspid aortopathy have been infrequently analysed. Our goal was to examine the prevalence of rare genetic variants in patients with a bicuspid aortic valve (BAV) with a root phenotype using next-generation sequencing technology. METHODS: We investigated a total of 124 patients with BAV with a root dilatation phenotype who underwent aortic valve ± proximal aortic surgery at a single institution (BAV database, n  = 812) during a 20-year period (1995-2015)...
April 6, 2017: European Journal of Cardio-thoracic Surgery
https://www.readbyqxmd.com/read/28379458/mid-term-results-of-bicuspid-aortic-valve-repair-guided-by-morphology-and-function-assessment
#8
Khalil Fattouch, Marco Moscarelli, Sebastiano Castrovinci, Giacomo Murana, Pietro Dioguardi, Francesco Guccione, Giuseppe Nasso, Giuseppe Speziale, Patrizio Lancellotti
OBJECTIVES: Bicuspid aortic valve (BAV) is frequently associated with aortic insufficiency (AI) due to cusp disease and/or aortic root dilatation. Based on functional classification and morphology, a systematic surgical approach was used for aortic valve repair (AVr). METHODS: : From 2004 to 2014, 152 consecutive patients (mean age 55 ± 7 years) with BAV underwent AVr with or without concomitant aortic root surgery. Cusp pathology was treated with central plication in 60 (39...
April 3, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28377475/diagnosis-imaging-and-clinical-management-of-aortic-coarctation
#9
REVIEW
Elles J Dijkema, Tim Leiner, Heynric B Grotenhuis
Coarctation of the aorta (CoA) is a well-known congenital heart disease (CHD), which is often associated with several other cardiac and vascular anomalies, such as bicuspid aortic valve (BAV), ventricular septal defect, patent ductus arteriosus and aortic arch hypoplasia. Despite echocardiographic screening, prenatal diagnosis of CoA remains difficult. Most patients with CoA present in infancy with absent, delayed or reduced femoral pulses, a supine arm-leg blood pressure gradient (>20 mm Hg), or a murmur due to rapid blood flow across the CoA or associated lesions (BAV)...
April 4, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28377231/prevalence-and-impact-of-coexistent-bicuspid-aortic-valve-in-hypertrophic-cardiomyopathy
#10
Ratnasari Padang, Bernard J Gersh, Steve R Ommen, Jeffrey B Geske
BACKGROUND: The association between bicuspid aortic valve (BAV) and hypertrophic cardiomyopathy (HCM) has been reported but its true prevalence is unknown. This study investigated the prevalence and clinical impact of coexistent BAV in a large referral HCM population. METHODS: Retrospective analysis of 3765 echocardiograms between 2004 and 2014 in 2640 consecutive patients with HCM was performed to assess for BAV. Patients with coexistent conditions were studied...
March 8, 2017: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/28377189/outcomes-of-hemodynamic-support-with-impella-in-very-high-risk-patients-undergoing-balloon-aortic-valvuloplasty-results-from-the-global-cvad-registry
#11
Vikas Singh, Pradeep K Yadav, Marvin H Eng, Francisco Yuri Macedo, Guilherme V Silva, Rodrigo Mendirichaga, Amit P Badiye, Rahul Sakhuja, Sammy Elmariah, Ignacio Inglessis, Carlos E Alfonso, Theodore L Schreiber, Mauricio Cohen, Igor Palacios, William W O'Neill
BACKGROUND: Reports on the role of hemodynamic support devices in patients with severe aortic stenosis (AS) and left ventricular (LV) dysfunction undergoing balloon aortic valvuloplasty (BAV) are limited. METHODS: Patients were identified from the cVAD registry, an ongoing multicenter voluntary registry at selected sites in North America that have used Impella in >10 patients. RESULTS: A total of 116 patients with AS who underwent BAV with Impella support were identified...
March 22, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/28368359/how-to-name-and-classify-your-phage-an-informal-guide
#12
Evelien Adriaenssens, J Rodney Brister
With this informal guide, we try to assist both new and experienced phage researchers through two important stages that follow phage discovery; that is, naming and classification. Providing an appropriate name for a bacteriophage is not as trivial as it sounds, and the effects might be long-lasting in databases and in official taxon names. Phage classification is the responsibility of the Bacterial and Archaeal Viruses Subcommittee (BAVS) of the International Committee on the Taxonomy of Viruses (ICTV). While the BAVS aims at providing a holistic approach to phage taxonomy, for individual researchers who have isolated and sequenced a new phage, this can be a little overwhelming...
April 3, 2017: Viruses
https://www.readbyqxmd.com/read/28367857/rate-of-stenotic-bicuspid-aortic-valve-aortic-dilatation-after-aortic-valve-replacement-calculated-using-a-3-dimensional-reconstruction-tool
#13
Kaoru Hattori, Ikuo Fukuda, Kazuyuki Daitoku, Masahito Minakawa, Hiroyuki Itaya
BACKGROUND: Progression of asymmetric dilated aorta associated with bicuspid aortic valve (BAV) is difficult to evaluate conventionally. The aim of the study was to calculate the rate of progression of the dilated BAV aorta after aortic valve replacement (AVR) using a 3-dimensional (3-D) reconstruction tool.Methods and Results:Fourteen stenotic BAV and 14 stenotic tricuspid aortic valve (TAV) patients with mildly dilated ascending aorta were reviewed. A patient-specific 3-D aortic model was reconstructed from preoperative and postoperative computed tomography data (BAV, 2...
March 31, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28367850/clinical-characteristics-and-surgical-treatment-of-infective-endocarditis-with-bicuspid-aortic-valve
#14
Jinmiao Chen, Shuyang Lu, Kui Hu, Zhaohua Yang, Sun Pan, Tao Hong, Chunsheng Wang
This study aimed to evaluate the clinical characteristics and surgical treatment of bicuspid aortic valve (BAV) infective endocarditis (IE) compared with tricuspid aortic valve (TAV) IE in China.The relevant pre-, intra- and post-operative materials of all IE patients undergoing cardiac surgery in our center between January 2003 and December 2012 were investigated and analyzed retrospectively.From January 2003 to December 2012, 345 consecutive IE patients received surgery in our center. A total of 171 native aortic valve IE patients were enrolled in this study, accounting for 49...
March 27, 2017: International Heart Journal
https://www.readbyqxmd.com/read/28344201/stenotic-bicuspid-and-tricuspid-aortic-valves%C3%A3-micro-computed-tomography-and-biological-indices-of-calcification
#15
Piotr Mazur, Ewa Wypasek, Bogusław Gawęda, Dorota Sobczyk, Przemysław Kapusta, Joanna Natorska, Krzysztof Piotr Malinowski, Jacek Tarasiuk, Maciej Bochenek, Sebastian Wroński, Katarzyna Chmielewska, Bogusław Kapelak, Anetta Undas
BACKGROUND: Valve calcification is well estimated by ex-vivo micro-computed tomography (micro-CT). The objective of this study was to investigate the associations between micro-CT findings and biological indices of calcification in aortic stenosis (AS), as well as differences between bicuspid aortic valve (BAV) and tricuspid aortic valve (TAV).Methods and Results:Aortic valves and plasma were obtained from patients undergoing valve surgery. Valves were dissected and underwent micro-CT, genetic analyses, and calcium content assessment...
March 24, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28342250/does-the-removal-of-the-temporary-pacer-wire-for-bav-and-tavr-really-simplify-the-procedure
#16
EDITORIAL
Arie Steinvil, Lowell Satler
No abstract text is available yet for this article.
March 1, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28339299/the-10th-gcc-closed-forum-rejected-data-gcp-in-bioanalysis-extract-stability-bav-processed-batch-acceptance-matrix-stability-critical-reagents-eln-and-data-integrity-and-counteracting-fraud
#17
Stephanie Cape, Rafiq Islam, Corey Nehls, John Allinson, Afshin Safavi, Patrick Bennett, James Hulse, Chris Beaver, Masood Khan, Shane Karnik, Maria Cruz Caturla, Steve Lowes, Adriana Iordachescu, Luigi Silvestro, Rabab Tayyem, Ron Shoup, Stephanie Mowery, Anahita Keyhani, Andrea Wakefield, Yinghe Li, Jennifer Zimmer, Javier Torres, Philippe Couerbe, Ardeshir Khadang, James Bourdage, Nicola Hughes, Kayode Awaiye, Brent Matthews, Saadya Fatmi, Rhonda Johnson, Christina Satterwhite, Mathilde Yu, Jenny Lin, Laura Cojocaru, Michele Fiscella, Eric Thomas, Kai Kurylak, John Kamerud, Zhongping John Lin, Wei Garofolo, Natasha Savoie, Mike Buonarati, Nadine Boudreau, Clark Williard, Yansheng Liu, Dominic Warrino, Prashant Kale, Neil Adcock, Radha Shekar, Edward O'Connor, Hanna Ritzen, Christina Sanchez, Roger Hayes, Mohammed Bouhajib, Simona Rizea Savu, Bruce Stouffer, Edward Tabler, Jing Tu, Chad Briscoe, Barry van der Strate, Paul Rhyne, Phyllis Conliffe, Ira DuBey, Jim Yamashita, Daniel Tang, Elizabeth Groeber, Jenifer Vija, Michele Malone, Mohamed Osman
The 10th Global CRO Council (GCC) Closed Forum was held in Orlando, FL, USA on 18 April 2016. In attendance were decision makers from international CRO member companies offering bioanalytical services. The objective of this meeting was for GCC members to meet and discuss scientific and regulatory issues specific to bioanalysis. The issues discussed at this closed forum included reporting data from failed method validation runs, GCP for clinical sample bioanalysis, extracted sample stability, biomarker assay validation, processed batch acceptance criteria, electronic laboratory notebooks and data integrity, Health Canada's Notice regarding replicates in matrix stability evaluations, critical reagents and regulatory approaches to counteract fraud...
March 24, 2017: Bioanalysis
https://www.readbyqxmd.com/read/28329312/first-experience-with-transfemoral-transcatheter-aortic-valve-implantation-without-prior-balloon-pre-dilatation-using-a-latest-generation-repositionable-and-retrievable-transcatheter-heart-valve%C3%A2
#18
Andreas Schaefer, Eva Harmel, Moritz Seiffert, Daniel Reichart, Florian Deuschl, Niklas Schofer, Yvonne Schneeberger, Stefan Blankenberg, Hermann Reichenspurner, Ulrich Schaefer, Lenard Conradi
OBJECTIVES: : The aim of this study was to prove technical feasibility and document haemodynamic and clinical outcomes of transcatheter aortic valve implantation (TAVI) with the latest generation repositionable and retrievable Lotus™ transcatheter heart valve (THV) without prior balloon-aortic valvuloplasty (BAV). It has been demonstrated for self-expandable and balloon-expandable THV that implantation without prior BAV is not only feasible and safe but also results in lower fluoroscopy times and amounts of contrast agent while yielding non-inferior haemodynamic and clinical outcome...
February 6, 2017: Interactive Cardiovascular and Thoracic Surgery
https://www.readbyqxmd.com/read/28318856/balloon-aortic-valvuloplasty-in-the-transcatheter-aortic-valve-implantation-era-a-single-center-registry
#19
Ana Rita G Francisco, Miguel Nobre Menezes, Pedro Carrilho Ferreira, Cláudia Jorge, Doroteia Silva, Eduardo Infante de Oliveira, Fausto J Pinto, Pedro Canas da Silva
INTRODUCTION: Percutaneous balloon aortic valvuloplasty (BAV) has been limited by the risk of complications and restenosis. However, growing use of transcatheter aortic valve implantation (TAVI) has revived interest in this technique. We analyzed the current indications for BAV and outcomes in a single center. METHODS: Acute results and long-term outcomes were analyzed in a retrospective single-center registry of patients undergoing BAV between January 2013 and January 2016...
April 2017: Portuguese Journal of Cardiology: An Official Journal of the Portuguese Society of Cardiology
https://www.readbyqxmd.com/read/28318133/transcatheter-aortic-valve-implantation-with-the-self-expandable-venus-a-valve-and-corevalve-devices-preliminary-experiences-in-china
#20
COMPARATIVE STUDY
Yan-Biao Liao, Zhen-Gang Zhao, Xin Wei, Yuan-Ning Xu, Zhi-Liang Zuo, Yi-Jian Li, Ming-Xia Zheng, Yuan Feng, Mao Chen
BACKGROUND: Transcatheter aortic valve implantation (TAVI) has been demonstrated to be an effective alternative to surgical aortic valve replacement (SAVR) in patients with aortic stenosis who are deemed high risk or inoperable. Currently, TAVI procedures in China mostly make use of the domestic Venus A-Valve and the CoreValve; however, there is no data on their comparative performance. METHODS: Consecutive patients undergoing TAVI with the aforementioned devices were included...
March 2017: Catheterization and Cardiovascular Interventions
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