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Waldmann V, Bessière F, Gardey K, Hascoët S, Henaine R, Iserin L, Ladouceur M, Bonnet D, Marijon E, Maltret A, Combes N, de Groot N. Catheter ablation of atrial tachyarrhythmias in patients with atrioventricular septal defect. Europace 2023; 25:euad275. [PMID: 37695311 PMCID: PMC10516589 DOI: 10.1093/europace/euad275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 08/22/2023] [Indexed: 09/12/2023] Open
Abstract
AIMS The incidence of atrial tachyarrhythmias is high in patients with atrioventricular septal defect (AVSD). No specific data on catheter ablation have been reported so far in this population. We aimed to describe the main mechanisms of atrial tachyarrhythmias in patients with AVSD and to analyse outcomes after catheter ablation. METHODS AND RESULTS This observational multi-centric cohort study enrolled all patients with AVSD referred for catheter ablation of an atrial tachyarrhythmia at six tertiary centres from 2004 to 2022. The mechanisms of the different tachyarrhythmias targeted were described and outcomes were analysed. Overall, 56 patients (38.1 ± 17.4 years, 55.4% females) were included. A total of 87 atrial tachyarrhythmias were targeted (mean number of 1.6 per patient). Regarding main circuits involved, a cavo-annular isthmus-dependent intra-atrial re-entrant tachycardia (IART) was observed in 41 (73.2%) patients and an IART involving the right lateral atriotomy in 10 (17.9%) patients. Other tachyarrhythmias with heterogeneous circuits were observed in 13 (23.2%) patients including 11 left-sided and 4 right-sided tachyarrhythmias. Overall, an acute success was achieved in 54 (96.4%) patients, and no complication was reported. During a mean follow-up of 2.8 ± 3.8 years, 22 (39.3%) patients had at least one recurrence. Freedom from atrial tachyarrhythmia recurrences was 77.5% at 1 year. Among 15 (26.8%) patients who underwent repeated ablation procedures, heterogeneous circuits including bi-atrial and left-sided tachyarrhythmias were more frequent. CONCLUSION In patients with AVSD, most circuits involve the cavo-annular isthmus, but complex mechanisms are frequently encountered in patients with repeated procedures. The acute success rate is excellent, although recurrences remain common during follow-up.
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Affiliation(s)
- Victor Waldmann
- Université Paris Cité, Inserm, PARCC, 56 rue Leblanc, F-75015 Paris, France
- Adult Congenital Heart Disease Medico-Surgical Unit, European Georges Pompidou Hospital, 20 rue Leblanc, 75015 Paris, France
- M3C-Necker, Hôpital Universitaire Necker-Enfants malades, APHP, 149 rue de Sèvres, 75015 Paris, France
- Cardiac Electrophysiology Unit, European Georges Pompidou Hospital, 20 rue Leblanc, 75015 Paris, France
| | - Francis Bessière
- Cardiology Department, Louis Pradel Hospital, Hospices Civils de Lyon, Université Lyon 1 Claude Bernard, 50 boulevard Pinel, 69500 Bron, France
| | - Kevin Gardey
- Cardiology Department, Louis Pradel Hospital, Hospices Civils de Lyon, Université Lyon 1 Claude Bernard, 50 boulevard Pinel, 69500 Bron, France
| | - Sébastien Hascoët
- Department of Congenital Heart Diseases, Centre de Référence Malformations Cardiaques Congénitales Complexes M3C, Hôpital Marie Lannelongue, Groupe Hospitalier Paris-Saint Joseph, Plessis-Robinson, Paris, France
| | - Roland Henaine
- Cardiology Department, Louis Pradel Hospital, Hospices Civils de Lyon, Université Lyon 1 Claude Bernard, 50 boulevard Pinel, 69500 Bron, France
| | - Laurence Iserin
- Adult Congenital Heart Disease Medico-Surgical Unit, European Georges Pompidou Hospital, 20 rue Leblanc, 75015 Paris, France
| | - Magalie Ladouceur
- Université Paris Cité, Inserm, PARCC, 56 rue Leblanc, F-75015 Paris, France
- Adult Congenital Heart Disease Medico-Surgical Unit, European Georges Pompidou Hospital, 20 rue Leblanc, 75015 Paris, France
| | - Damien Bonnet
- Université Paris Cité, Inserm, PARCC, 56 rue Leblanc, F-75015 Paris, France
- M3C-Necker, Hôpital Universitaire Necker-Enfants malades, APHP, 149 rue de Sèvres, 75015 Paris, France
| | - Eloi Marijon
- Université Paris Cité, Inserm, PARCC, 56 rue Leblanc, F-75015 Paris, France
- Cardiac Electrophysiology Unit, European Georges Pompidou Hospital, 20 rue Leblanc, 75015 Paris, France
| | - Alice Maltret
- Department of Congenital Heart Diseases, Centre de Référence Malformations Cardiaques Congénitales Complexes M3C, Hôpital Marie Lannelongue, Groupe Hospitalier Paris-Saint Joseph, Plessis-Robinson, Paris, France
| | - Nicolas Combes
- Department of Congenital Heart Diseases, Centre de Référence Malformations Cardiaques Congénitales Complexes M3C, Hôpital Marie Lannelongue, Groupe Hospitalier Paris-Saint Joseph, Plessis-Robinson, Paris, France
- Electrophysiology Unit, Pasteur Clinic, 45 avenue de Lombez, 31300 Toulouse, France
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Wijdeveld L, Pool L, van Weeghel M, Schomakers B, Houtkooper R, de Groot N, Brundel B. The devil is in the details: Metabolomics to characterise the stages of atrial fibrillation. J Mol Cell Cardiol 2022. [DOI: 10.1016/j.yjmcc.2022.08.229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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Li J, Qi X, Ramos KS, Lanters E, Keijer J, de Groot N, Brundel B, Zhang D. Disruption of Sarcoplasmic Reticulum-Mitochondrial Contacts Underlies Contractile Dysfunction in Experimental and Human Atrial Fibrillation: A Key Role of Mitofusin 2. J Am Heart Assoc 2022; 11:e024478. [PMID: 36172949 DOI: 10.1161/jaha.121.024478] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background Atrial fibrillation (AF) is the most common and progressive tachyarrhythmia. Diabetes is a common risk factor for AF. Recent research findings revealed that microtubule network disruption underlies AF. The microtubule network mediates the contact between sarcoplasmic reticulum and mitochondria, 2 essential organelles for normal cardiomyocyte function. Therefore, disruption of the microtubule network may impair sarcoplasmic reticulum and mitochondrial contacts (SRMCs) and subsequently cardiomyocyte function. The current study aims to determine whether microtubule-mediated SRMCs disruption underlies diabetes-associated AF. Methods and Results Tachypacing (mimicking AF) and high glucose (mimicking diabetes) significantly impaired contractile function in HL-1 cardiomyocytes (loss of calcium transient) and Drosophila (reduced heart rate and increased arrhythmia), both of which were prevented by microtubule stabilizers. Furthermore, both tachypacing and high glucose significantly reduced SRMCs and the key SRMC tether protein mitofusin 2 (MFN2) and resulted in consequent mitochondrial dysfunction, all of which were prevented by microtubule stabilizers. In line with pharmacological interventions with microtubule stabilizers, cardiac-specific knockdown of MFN2 induced arrhythmia in Drosophila and overexpression of MFN2 prevented tachypacing- and high glucose-induced contractile dysfunction in HL-1 cardiomyocytes and/or Drosophila. Consistently, SRMCs/MFN2 levels were significantly reduced in right atrial appendages of patients with persistent AF compared with control patients, which was aggravated in patients with diabetes. Conclusions SRMCs may play a critical role in clinical AF, especially diabetes-related AF. Furthermore, SRMCs can be regulated by microtubules and MFN2, which represent novel potential therapeutic targets for AF.
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Affiliation(s)
- Jin Li
- Department of Physiology Amsterdam UMC location Vrije Universiteit Amsterdam Amsterdam The Netherlands.,Amsterdam Cardiovascular Sciences Heart Failure and Arrhythmias Amsterdam The Netherlands.,Division of Metabolism, Endocrinology and Diabetes and Department of Internal Medicine University of Michigan Medical School Ann Arbor MI
| | - Xi Qi
- Human and Animal Physiology Wageningen University Wageningen The Netherlands
| | - Kennedy S Ramos
- Department of Physiology Amsterdam UMC location Vrije Universiteit Amsterdam Amsterdam The Netherlands.,Amsterdam Cardiovascular Sciences Heart Failure and Arrhythmias Amsterdam The Netherlands
| | - Eva Lanters
- Department of Cardiology Erasmus Medical Center Rotterdam The Netherlands
| | - Jaap Keijer
- Human and Animal Physiology Wageningen University Wageningen The Netherlands
| | - Natasja de Groot
- Department of Cardiology Erasmus Medical Center Rotterdam The Netherlands
| | - Bianca Brundel
- Department of Physiology Amsterdam UMC location Vrije Universiteit Amsterdam Amsterdam The Netherlands.,Amsterdam Cardiovascular Sciences Heart Failure and Arrhythmias Amsterdam The Netherlands
| | - Deli Zhang
- Department of Physiology Amsterdam UMC location Vrije Universiteit Amsterdam Amsterdam The Netherlands.,Human and Animal Physiology Wageningen University Wageningen The Netherlands
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Lu Z, Geurts S, Arshi B, Tilly MJ, Aribas E, Roeters van Lennep J, de Groot N, Rizopoulos D, Ikram MA, Kavousi M. Longitudinal Anthropometric Measures and Risk of New-Onset Atrial Fibrillation Among Community-Dwelling Men and Women. Mayo Clin Proc 2022; 97:1501-1511. [PMID: 35691705 DOI: 10.1016/j.mayocp.2021.12.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Accepted: 12/28/2021] [Indexed: 11/16/2022]
Abstract
OBJECTIVE To assess the sex-specific evolution of various anthropometric measures and the association of their longitudinal trajectories with new-onset atrial fibrillation (AF). METHODS Among 5266 men and 7218 women free of AF at baseline from the prospective population-based Rotterdam Study, each anthropometric measure was measured 1 to 5 times from 1989 to 2014. Anthropometric measures were standardized to obtain hazard ratios per 1 SD increase to enable comparison. Joint models were used to assess the longitudinal association between anthropometric measures and incident AF. Use of the joint models is a preferred method for simultaneous analyses of repeated measurements and survival data for conferring less biased estimates. RESULTS Mean (SD) age was 63.9 (8.9) years for men and 64.9 (9.8) years for women. Median follow-up time was 10.5 years. Longitudinal evolution of weight, height, waist circumference, hip circumference, and body mass index was associated with an increased risk of new-onset AF in both men and women. In joint models, larger height in men (hazard ratio [95% credible interval] per 1 SD, 1.27 [1.17 to 1.38]) and weight in women (1.24 [1.16 to 1.34]) showed the largest associations with AF. In joint models, waist to hip ratio was significantly associated with incident AF only in women (1.10 [1.03 to 1.18]). CONCLUSION Considering the entire longitudinal trajectories in joint models, anthropometric measures were positively associated with an increased risk for new-onset AF among men and women in the general population. Increase in measure of central obesity showed a stronger association with increased risk of AF onset among women compared with men.
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Affiliation(s)
- Zuolin Lu
- Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, The Netherlands
| | - Sven Geurts
- Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, The Netherlands
| | - Banafsheh Arshi
- Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, The Netherlands
| | - Martijn J Tilly
- Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, The Netherlands
| | - Elif Aribas
- Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, The Netherlands
| | | | - Natasja de Groot
- Department of Cardiology, Erasmus MC, University Medical Center Rotterdam, The Netherlands
| | - Dimitris Rizopoulos
- Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, The Netherlands; Department of Biostatistics, Erasmus MC, University Medical Center Rotterdam, The Netherlands
| | - M Arfan Ikram
- Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, The Netherlands
| | - Maryam Kavousi
- Department of Epidemiology, Erasmus MC, University Medical Center Rotterdam, The Netherlands.
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Baumgartner H, De Backer J, Babu-Narayan SV, Budts W, Chessa M, Diller GP, Iung B, Kluin J, Lang IM, Meijboom F, Moons P, Mulder BJ, Oechslin E, Roos-Hesselink JW, Schwerzmann M, Sondergaard L, Zeppenfeld K, Ernst S, Ladouceur M, Aboyans V, Alexander D, Christodorescu R, Corrado D, D’Alto M, de Groot N, Delgado V, Di Salvo G, Dos Subira L, Eicken A, Fitzsimons D, Frogoudaki AA, Gatzoulis M, Heymans S, Hörer J, Houyel L, Jondeau G, Katus HA, Landmesser U, Lewis BS, Lyon A, Mueller CE, Mylotte D, Petersen SE, Petronio AS, Roffi M, Rosenhek R, Shlyakhto E, Simpson IA, Sousa-Uva M, Torp-Pedersen CT, Touyz RM, Van De Bruaene A. Guía ESC 2020 para el tratamiento de las cardiopatías congénitas del adulto. Rev Esp Cardiol 2021. [DOI: 10.1016/j.recesp.2020.10.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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Knops P, Schram-Serban C, van der Does L, Croes M, Houben R, de Groot N. Impact of atrial programmed electrical stimulation techniques on unipolar electrogram morphology. J Cardiovasc Electrophysiol 2020; 31:943-951. [PMID: 32057165 DOI: 10.1111/jce.14394] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Revised: 01/28/2020] [Accepted: 02/10/2020] [Indexed: 11/30/2022]
Abstract
INTRODUCTION Intra-atrial conduction abnormalities are associated with the development of atrial fibrillation (AF) and cause morphological changes of the unipolar atrial electrogram (U-AEGM). This study examined the impact of different atrial programmed electrical stimulation (APES) protocols on U-AEGM morphology to identify the most optimal APES protocol provoking conduction abnormalities. METHODS APES techniques (14 protocols) were applied in 30 patients referred for an electrophysiology study, consisting of fixed rate, extra, and decremental stimuli at different frequencies. U-AEGM morphologies including width, amplitude, and fractionation for patients without (control group) and with a history of AF (AF group) were examined during APES. In addition, sinus rhythm (SR) U-AEGMs preceding different APES protocols were compared to evaluate the morphology stability over time. RESULTS U-AEGM morphologies during SR before the APES protocols were comparable (all P > .396). Atrial refractoriness was longer in the AF group compared to the control group (298 ± 48 vs 255 ± 33 ms; P ≤ .020), but did not differ between AF patients with and without amiodarone therapy (278 ± 48 vs 311 ± 40 ms; P ≥ .126). Compared to the initial SR morphology, U-AEGM width, amplitude, and fractionation changed significantly during the 14 different APES protocols, particularly in the AF group. In both groups, U-AEGM changes in morphology were most pronounced during fixed-rate stimulation with extra stimuli (8S1-S2 = 400-250 ms). CONCLUSION APES results in significant changes in U-AEGM morphology, including width, amplitude, and fractionation. The impact of APES differed between APES sequence and between patients with and without AF. These findings suggest that APES could be useful to identify AF-related conduction abnormalities in the individual patient.
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Affiliation(s)
- Paul Knops
- Department of Cardiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | | | | | - Marshall Croes
- Department of Cardiology, Erasmus Medical Center, Rotterdam, The Netherlands
| | | | - Natasja de Groot
- Department of Cardiology, Erasmus Medical Center, Rotterdam, The Netherlands
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Frederix I, Caiani EG, Dendale P, Anker S, Bax J, Böhm A, Cowie M, Crawford J, de Groot N, Dilaveris P, Hansen T, Koehler F, Krstačić G, Lambrinou E, Lancellotti P, Meier P, Neubeck L, Parati G, Piotrowicz E, Tubaro M, van der Velde E. ESC e-Cardiology Working Group Position Paper: Overcoming challenges in digital health implementation in cardiovascular medicine. Eur J Prev Cardiol 2019; 26:1166-1177. [DOI: 10.1177/2047487319832394] [Citation(s) in RCA: 123] [Impact Index Per Article: 24.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ines Frederix
- Department of Cardiology, Jessa Hospital, Belgium
- Antwerp University Hospital (UZA), Belgium
- Faculty of Medicine and Life Sciences, Hasselt University, Belgium
- Faculty of Medicine and Health Sciences, Antwerp University, Belgium
| | - Enrico G Caiani
- Department of Electronics, Information, and Bioengineering, Politecnico di Milano, Italy
- Institute of Electronics and Information and Telecommunication Engineering, Consiglio Nazionale delle Ricerche, Italy
| | - Paul Dendale
- Department of Cardiology, Jessa Hospital, Belgium
- Faculty of Medicine and Life Sciences, Hasselt University, Belgium
| | - Stefan Anker
- Division of Cardiology and Metabolism, Berlin–Brandenburg Center for Regenerative Therapies (BCRT), partner site Berlin, Charité Universitätsmedizin Berlin, Germany
| | - Jeroen Bax
- Department of Cardiology, Leiden University Medical Centre (LUMC), The Netherlands
| | - Alan Böhm
- Department of Acute Cardiology, The National Institute of Cardiovascular Diseases, Slovakia
- Faculty of Medicine, Slovak Medical University, Slovakia
| | - Martin Cowie
- National Heart and Lung Institute, Imperial College London, UK
| | - John Crawford
- International Advisory Group, Healthcare Information and Management Systems Society (HIMSS), UK
| | - Natasja de Groot
- Department of Cardiology, Erasmus Medical Center, The Netherlands
| | | | - Tina Hansen
- Department of Cardiology, Zealand University Hospital, Denmark
| | - Friedrich Koehler
- Centre for Cardiovascular Telemedicine, Charité – Universitätsmedizin, Germany
| | | | | | - Patrizio Lancellotti
- University of Liège Hospital, GIGA CardioVascular Sciences, Belgium
- Gruppo Villa Maria Care and Research, Anthea Hospital, Italy
| | - Pascal Meier
- Department of Cardiology, University Hospital Geneva HUG, Switzerland
| | - Lis Neubeck
- School of Health and Social Care, Edinburgh Napier University, UK
| | - Gianfranco Parati
- IRCCS Istituto Auxologico Italiano, University of Milano-Bicocca, Italy
| | | | - Marco Tubaro
- ICCU – Cardiology Division, San Filippo Neri Hospital, Italy
| | - Enno van der Velde
- Department of Cardiology, Leiden University Medical Centre (LUMC), The Netherlands
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van der Does L, Kik C, Allessie M, de Groot N. Endo-epicardial dissociation in conduction. Eur Heart J 2017; 38:1775. [PMID: 27354058 DOI: 10.1093/eurheartj/ehw245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
| | - Charles Kik
- Department of Cardiothoracic Surgery, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Maurits Allessie
- Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands
| | - Natasja de Groot
- Department of Cardiology, Erasmus Medical Center, s-Gravendijkwal 230, Rotterdam 3015CE, The Netherlands
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de Groot N, van der Does L, Yaksh A, Lanters E, Teuwen C, Knops P, van de Woestijne P, Bekkers J, Kik C, Bogers A, Allessie M. Direct Proof of Endo-Epicardial Asynchrony of the Atrial Wall During Atrial Fibrillation in Humans. Circ Arrhythm Electrophysiol 2016; 9:CIRCEP.115.003648. [DOI: 10.1161/circep.115.003648] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 03/25/2016] [Indexed: 12/22/2022]
Abstract
Background—
The presence of focal fibrillation waves during atrial fibrillation (AF) can, besides ectopic activity, also be explained by asynchronous activation of the atrial endo- and epicardial layer and transmurally propagating fibrillation waves. To provide direct proof of endo-epicardial asynchrony, we performed simultaneous high-resolution mapping of the right atrial endo- and epicardial wall during AF in humans.
Method and Results—
Intraoperative mapping of the endo- and epicardial right atrial wall was performed during (induced) AF in 10 patients with AF (paroxysmal: n=3; persistent: n=4; and longstanding persistent: n=3) and 4 patients without a history of AF. A clamp made of 2 rectangular 8×16 electrode arrays (interelectrode distance 2 mm) was inserted into the incision in the right atrial appendage. Recordings of 10 seconds of AF were analyzed to determine the incidence of asynchronous endo-epicardial activation times (≥15 ms) of opposite electrodes. Asynchronous endo-epicardial activation ranged between 0.9 and 55.9% without preference for either side. Focal waves appeared equally frequent at endocardium and epicardium (11% versus 13%;
P
=0.18). Using strict criteria for breakthrough (presence of an opposite wave within 4 mm and ≤14 ms before the origin of the focal wave), the majority (65%) of all focal fibrillation waves could be attributed to endo-epicardial excitation.
Conclusions—
We provided the first evidence for asynchronous activation of the endo-epicardial wall during AF in humans. Endo-epicardial asynchrony may play a major role in the pathophysiology of AF and may offer an explanation why in some patients therapy fails.
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Affiliation(s)
- Natasja de Groot
- From the Department of Cardiology (N.d.G., L.v.d.D., A.Y., E.L., C.T., P.K.) and Department of Cardiothoracic Surgery (P.v.d.W., J.B., C.K., A.B.), Erasmus Medical Center, Rotterdam, The Netherlands; and Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands (M.A.)
| | - Lisette van der Does
- From the Department of Cardiology (N.d.G., L.v.d.D., A.Y., E.L., C.T., P.K.) and Department of Cardiothoracic Surgery (P.v.d.W., J.B., C.K., A.B.), Erasmus Medical Center, Rotterdam, The Netherlands; and Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands (M.A.)
| | - Ameeta Yaksh
- From the Department of Cardiology (N.d.G., L.v.d.D., A.Y., E.L., C.T., P.K.) and Department of Cardiothoracic Surgery (P.v.d.W., J.B., C.K., A.B.), Erasmus Medical Center, Rotterdam, The Netherlands; and Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands (M.A.)
| | - Eva Lanters
- From the Department of Cardiology (N.d.G., L.v.d.D., A.Y., E.L., C.T., P.K.) and Department of Cardiothoracic Surgery (P.v.d.W., J.B., C.K., A.B.), Erasmus Medical Center, Rotterdam, The Netherlands; and Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands (M.A.)
| | - Christophe Teuwen
- From the Department of Cardiology (N.d.G., L.v.d.D., A.Y., E.L., C.T., P.K.) and Department of Cardiothoracic Surgery (P.v.d.W., J.B., C.K., A.B.), Erasmus Medical Center, Rotterdam, The Netherlands; and Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands (M.A.)
| | - Paul Knops
- From the Department of Cardiology (N.d.G., L.v.d.D., A.Y., E.L., C.T., P.K.) and Department of Cardiothoracic Surgery (P.v.d.W., J.B., C.K., A.B.), Erasmus Medical Center, Rotterdam, The Netherlands; and Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands (M.A.)
| | - Pieter van de Woestijne
- From the Department of Cardiology (N.d.G., L.v.d.D., A.Y., E.L., C.T., P.K.) and Department of Cardiothoracic Surgery (P.v.d.W., J.B., C.K., A.B.), Erasmus Medical Center, Rotterdam, The Netherlands; and Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands (M.A.)
| | - Jos Bekkers
- From the Department of Cardiology (N.d.G., L.v.d.D., A.Y., E.L., C.T., P.K.) and Department of Cardiothoracic Surgery (P.v.d.W., J.B., C.K., A.B.), Erasmus Medical Center, Rotterdam, The Netherlands; and Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands (M.A.)
| | - Charles Kik
- From the Department of Cardiology (N.d.G., L.v.d.D., A.Y., E.L., C.T., P.K.) and Department of Cardiothoracic Surgery (P.v.d.W., J.B., C.K., A.B.), Erasmus Medical Center, Rotterdam, The Netherlands; and Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands (M.A.)
| | - Ad Bogers
- From the Department of Cardiology (N.d.G., L.v.d.D., A.Y., E.L., C.T., P.K.) and Department of Cardiothoracic Surgery (P.v.d.W., J.B., C.K., A.B.), Erasmus Medical Center, Rotterdam, The Netherlands; and Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands (M.A.)
| | - Maurits Allessie
- From the Department of Cardiology (N.d.G., L.v.d.D., A.Y., E.L., C.T., P.K.) and Department of Cardiothoracic Surgery (P.v.d.W., J.B., C.K., A.B.), Erasmus Medical Center, Rotterdam, The Netherlands; and Department of Physiology, Cardiovascular Research Institute Maastricht, Maastricht, The Netherlands (M.A.)
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Bhagirath P, van der Graaf M, van Dongen E, de Hooge J, van Driel V, Ramanna H, de Groot N, Götte MJW. Feasibility and Accuracy of Cardiac Magnetic Resonance Imaging-Based Whole-Heart Inverse Potential Mapping of Sinus Rhythm and Idiopathic Ventricular Foci. J Am Heart Assoc 2015; 4:e002222. [PMID: 26467997 PMCID: PMC4845111 DOI: 10.1161/jaha.115.002222] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Background Inverse potential mapping (IPM) noninvasively reconstructs cardiac surface potentials using body surface potentials. This requires a volume conductor model (VCM), usually constructed from computed tomography; however, computed tomography exposes the patient to harmful radiation and lacks information about tissue structure. Magnetic resonance imaging (MRI) is not associated with this limitation and might have advantages for mapping purposes. This feasibility study investigated a magnetic resonance imaging–based IPM approach. In addition, the impact of incorporating the lungs and their particular resistivity values was explored. Methods and Results Three volunteers and 8 patients with premature ventricular contractions scheduled for ablation underwent 65‐electrode body surface potential mapping. A VCM was created using magnetic resonance imaging. Cardiac surface potentials were estimated from body surface potentials and used to determine the origin of electrical activation. The IPM‐defined origin of sinus rhythm corresponded well with the anatomic position of the sinus node, as described in the literature. In patients, the IPM‐derived premature ventricular contraction focus was 3‐dimensionally located within 8.3±2.7 mm of the invasively determined focus using electroanatomic mapping. The impact of lungs on the IPM was investigated using homogeneous and inhomogeneous VCMs. The inhomogeneous VCM, incorporating lung‐specific conductivity, provided more accurate results compared with the homogeneous VCM (8.3±2.7 and 10.3±3.1 mm, respectively; P=0.043). The interobserver agreement was high for homogeneous (intraclass correlation coefficient 0.862, P=0.003) and inhomogeneous (intraclass correlation coefficient 0.812, P=0.004) VCMs. Conclusion Magnetic resonance imaging–based whole‐heart IPM enables accurate spatial localization of sinus rhythm and premature ventricular contractions comparable to electroanatomic mapping. An inhomogeneous VCM improved IPM accuracy.
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Affiliation(s)
- Pranav Bhagirath
- Department of Cardiology, Haga Teaching Hospital, The Hague, The Netherlands (P.B., M.G., E.D., J.H., V.D., H.R., M.W.)
| | - Maurits van der Graaf
- Department of Cardiology, Haga Teaching Hospital, The Hague, The Netherlands (P.B., M.G., E.D., J.H., V.D., H.R., M.W.)
| | - Elise van Dongen
- Department of Cardiology, Haga Teaching Hospital, The Hague, The Netherlands (P.B., M.G., E.D., J.H., V.D., H.R., M.W.)
| | - Jacques de Hooge
- Department of Cardiology, Haga Teaching Hospital, The Hague, The Netherlands (P.B., M.G., E.D., J.H., V.D., H.R., M.W.)
| | - Vincent van Driel
- Department of Cardiology, Haga Teaching Hospital, The Hague, The Netherlands (P.B., M.G., E.D., J.H., V.D., H.R., M.W.)
| | - Hemanth Ramanna
- Department of Cardiology, Haga Teaching Hospital, The Hague, The Netherlands (P.B., M.G., E.D., J.H., V.D., H.R., M.W.)
| | - Natasja de Groot
- Department of Cardiology, Erasmus Medical Centre, Rotterdam, The Netherlands (N.G.)
| | - Marco J W Götte
- Department of Cardiology, Haga Teaching Hospital, The Hague, The Netherlands (P.B., M.G., E.D., J.H., V.D., H.R., M.W.)
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11
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Affiliation(s)
- Maurits Allessie
- Department of Physiology, University of Maastricht, The Netherlands
| | - Natasja de Groot
- Department of Cardiology, Erasmus Medical Center, Rotterdam, The Netherlands
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12
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Affiliation(s)
- Maurits Allessie
- Department of Physiology, University of Maastricht, The Netherlands
| | - Natasja de Groot
- Department of Cardiology, Erasmus Medical Center, Rotterdam, The Netherlands
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Khairy P, Van Hare GF, Balaji S, Berul CI, Cecchin F, Cohen MI, Daniels CJ, Deal BJ, Dearani JA, Groot ND, Dubin AM, Harris L, Janousek J, Kanter RJ, Karpawich PP, Perry JC, Seslar SP, Shah MJ, Silka MJ, Triedman JK, Walsh EP, Warnes CA. PACES/HRS expert consensus statement on the recognition and management of arrhythmias in adult congenital heart disease: developed in partnership between the Pediatric and Congenital Electrophysiology Society (PACES) and the Heart Rhythm Society (HRS). Endorsed by the governing bodies of PACES, HRS, the American College of Cardiology (ACC), the American Heart Association (AHA), the European Heart Rhythm Association (EHRA), the Canadian Heart Rhythm Society (CHRS), and the International Society for Adult Congenital Heart Disease (ISACHD). Can J Cardiol 2014; 30:e1-e63. [PMID: 25262867 DOI: 10.1016/j.cjca.2014.09.002] [Citation(s) in RCA: 143] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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Abstract
Germline mutation determines rates of molecular evolution, genetic diversity, and fitness load. In humans, the average point mutation rate is 1.2 × 10(-8) per base pair per generation, with every additional year of father's age contributing two mutations across the genome and males contributing three to four times as many mutations as females. To assess whether such patterns are shared with our closest living relatives, we sequenced the genomes of a nine-member pedigree of Western chimpanzees, Pan troglodytes verus. Our results indicate a mutation rate of 1.2 × 10(-8) per base pair per generation, but a male contribution seven to eight times that of females and a paternal age effect of three mutations per year of father's age. Thus, mutation rates and patterns differ between closely related species.
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Affiliation(s)
- Oliver Venn
- Wellcome Trust Centre for Human Genetics, Roosevelt Drive, Oxford, OX3 7BN, UK
| | - Isaac Turner
- Wellcome Trust Centre for Human Genetics, Roosevelt Drive, Oxford, OX3 7BN, UK
| | - Iain Mathieson
- Wellcome Trust Centre for Human Genetics, Roosevelt Drive, Oxford, OX3 7BN, UK
| | - Natasja de Groot
- Biomedical Primate Research Centre, Lange Kleiweg 161, 2288 GJ Rijswijk, Netherlands
| | - Ronald Bontrop
- Biomedical Primate Research Centre, Lange Kleiweg 161, 2288 GJ Rijswijk, Netherlands
| | - Gil McVean
- Wellcome Trust Centre for Human Genetics, Roosevelt Drive, Oxford, OX3 7BN, UK.
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15
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Khairy P, Van Hare GF, Balaji S, Berul CI, Cecchin F, Cohen MI, Daniels CJ, Deal BJ, Dearani JA, Groot ND, Dubin AM, Harris L, Janousek J, Kanter RJ, Karpawich PP, Perry JC, Seslar SP, Shah MJ, Silka MJ, Triedman JK, Walsh EP, Warnes CA. PACES/HRS Expert Consensus Statement on the Recognition and Management of Arrhythmias in Adult Congenital Heart Disease: developed in partnership between the Pediatric and Congenital Electrophysiology Society (PACES) and the Heart Rhythm Society (HRS). Endorsed by the governing bodies of PACES, HRS, the American College of Cardiology (ACC), the American Heart Association (AHA), the European Heart Rhythm Association (EHRA), the Canadian Heart Rhythm Society (CHRS), and the International Society for Adult Congenital Heart Disease (ISACHD). Heart Rhythm 2014; 11:e102-65. [PMID: 24814377 DOI: 10.1016/j.hrthm.2014.05.009] [Citation(s) in RCA: 371] [Impact Index Per Article: 37.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Indexed: 02/07/2023]
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16
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Affiliation(s)
- Maurits Allessie
- Department of Physiology, University of Maastricht, Maastricht, The Netherlands
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17
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Affiliation(s)
- Maurits Allessie
- Department of Physiology, University of Maastricht, The Netherlands
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18
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Brugada J, Blom N, Sarquella-Brugada G, Blomstrom-Lundqvist C, Deanfield J, Janousek J, Abrams D, Bauersfeld U, Brugada R, Drago F, de Groot N, Happonen JM, Hebe J, Yen Ho S, Marijon E, Paul T, Pfammatter JP, Rosenthal E. Pharmacological and non-pharmacological therapy for arrhythmias in the pediatric population: EHRA and AEPC-Arrhythmia Working Group joint consensus statement. ACTA ACUST UNITED AC 2013; 15:1337-82. [DOI: 10.1093/europace/eut082] [Citation(s) in RCA: 217] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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Szili-Torok T, van Malderen S, de Groot N. 'Born' with a 'dead'-end-tract resulting in arrhythmias in the aorto-mitral continuity: coincidence, causation, and 'commensuration'. Europace 2012; 14:308-9. [PMID: 22308091 DOI: 10.1093/europace/eur433] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Bauernfeind T, Akca F, Schwagten B, de Groot N, Van Belle Y, Valk S, Ujvari B, Jordaens L, Szili-Torok T. The magnetic navigation system allows safety and high efficacy for ablation of arrhythmias. Europace 2011; 13:1015-21. [PMID: 21508006 PMCID: PMC3120134 DOI: 10.1093/europace/eur073] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
Abstract
Aims We aimed to evaluate the safety and long-term efficacy of the magnetic navigation system (MNS) in a large number of patients. The MNS has the potential for improving safety and efficacy based on atraumatic catheter design and superior navigation capabilities. Methods and results In this study, 610 consecutive patients underwent ablation. Patients were divided into two age- and sex-matched groups. Ablations were performed either using MNS (group MNS, 292) or conventional manual ablation [group manual navigation (MAN), 318]. The following parameters were analysed: acute success rate, fluoroscopy time, procedure time, complications [major: pericardial tamponade, permanent atrioventricular (AV) block, major bleeding, and death; minor: minor bleeding and temporary AV block]. Recurrence rate was assessed during follow-up (15 ± 9.5 months). Subgroup analysis was performed for the following groups: atrial fibrillation, isthmus dependent and atypical atrial flutter, atrial tachycardia, AV nodal re-entrant tachycardia, circus movement tachycardia, and ventricular tachycardia (VT). Magnetic navigation system was associated with less major complications (0.34 vs. 3.2%, P = 0.01). The total numbers of complications were lower in group MNS (4.5 vs. 10%, P = 0.005). Magnetic navigation system was equally effective as MAN in acute success rate for overall groups (92 vs. 94%, P = ns). Magnetic navigation system was more successful for VTs (93 vs. 72%, P < 0.05). Less fluoroscopy was used in group MNS (30 ± 20 vs. 35 ± 25 min, P < 0.01). There were no differences in procedure times and recurrence rates for the overall groups (168 ± 67 vs. 159 ± 75 min, P = ns; 14 vs. 11%, P = ns; respectively). Conclusions Our data suggest that the use of MNS improves safety without compromising efficiency of ablations. Magnetic navigation system is more effective than manual ablation for VTs.
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Affiliation(s)
- Tamas Bauernfeind
- Department of Cardiology, Thoraxcenter, Clinical Electrophysiology, Erasmus MC, Postbus 2040, S Gravendijkwal 230, Kamer BD416, 3000 CA Rotterdam, The Netherlands
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Bhagwandien R, Van Belle Y, de Groot N, Jordaens L. Hemoptysis after pulmonary vein isolation with a cryoballoon: an analysis of the potential etiology. J Cardiovasc Electrophysiol 2011; 22:1067-9. [PMID: 21352395 DOI: 10.1111/j.1540-8167.2011.02031.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
In a series of 359 cryoballoon ablations with a complete registry of complications, clinically important hemoptysis requiring readmission was observed in 2 patients. One patient had preexisting bronchiectasis; the other had no previous history of pulmonary disease. In the first patient the guiding wire was very distal in one of the veins and exceptional low freezing temperatures were recorded in the left inferior pulmonary vein. Similarly, in the second patient exceptional low freezing temperatures were recorded in all 4 veins. Four additional patients mentioned hemoptysis at the 3-month follow-up visit, which resolved after temporary cessation of anticoagulation. Hemoptysis can occur after cryoballoon ablation for several reasons, especially when a stringent anticoagulation regimen is adhered to, and when occlusion is associated with very low freezing temperatures.
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Eckstein J, Verheule S, de Groot N, Allessie M, Schotten U. Mechanisms of perpetuation of atrial fibrillation in chronically dilated atria. Progress in Biophysics and Molecular Biology 2008; 97:435-51. [DOI: 10.1016/j.pbiomolbio.2008.02.019] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Balla-Jhagjhoorsingh SS, Verschoor EJ, de Groot N, Teeuwsen VJP, Bontrop RE, Heeney JL. Specific nature of cellular immune responses elicited by chimpanzees against HIV-1. Hum Immunol 2003; 64:681-8. [PMID: 12826370 DOI: 10.1016/s0198-8859(03)00088-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Recent epidemiologic and phylogenetic analyses suggest that in the human population human immunodeficiency virus (HIV-1) is a relatively new pathogen that arose by zoonotic transmission from chimpanzees. In humans the morbidity and mortality figures due to HIV infection are extremely high. In a very small percentage of the human population, however, individuals have been identified who were infected for more than 20 years and have no evidence of disease progression. In contrast to most infected humans, almost all chimpanzees appear to be resistant to the pathologic effects caused by lentiviruses such as HIV-1. Here we review the characteristics of the HIV-1-specific cell-mediated immune responses mounted by chimpanzees, and we postulate the mechanisms that have evolved that facilitate their resistance to acquired immunodeficiency syndrome.
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Robinson J, Waller MJ, Parham P, de Groot N, Bontrop R, Kennedy LJ, Stoehr P, Marsh SGE. IMGT/HLA and IMGT/MHC: sequence databases for the study of the major histocompatibility complex. Nucleic Acids Res 2003; 31:311-4. [PMID: 12520010 PMCID: PMC165517 DOI: 10.1093/nar/gkg070] [Citation(s) in RCA: 706] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
The IMGT/HLA database (http://www.ebi.ac.uk/imgt/hla) has provided a centralized repository for the sequences of the alleles named by the WHO Nomenclature Committee for Factors of the HLA System for the past four years. Since its initial release the database has grown and is the primary source of information for the study of sequences of the human major histocompatibilty complex. The initial release of the database contained a limited number of tools. As a result of feedback from our users and developments in HLA we have been able to provide new tools and facilities. The HLA sequences have also been extended to include intron sequences and the 3' and 5' untranslated regions in the alignments and also the inclusion of new genes such as MICA. The IMGT/MHC database (http://www.ebi.ac.uk/imgt/mhc) was released in March 2002 to provide a similar resource for other species. The first release of IMGT/MHC contains the sequences of non-human primates (apes, new and old world monkeys), canines and feline sequences. Further species will be added shortly and the database aims to become the primary source of MHC data for non-human sequences.
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Affiliation(s)
- James Robinson
- Anthony Nolan Research Institute and Royal Free Hospital, Pond Street, Hampstead, London NW3 2QG, UK
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Keren-Zur M, Hochberg AA, Groot ND, Lapidot Y. Poly (U, s 4-U) as a synthetic messenger RNA for polyphenylalanine synthesis in a cell-free system derivem derived from rat liver. Nucleic Acids Res 1975; 2:595-601. [PMID: 1169764 PMCID: PMC342866 DOI: 10.1093/nar/2.4.595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
Two different U and S4-U containing polymers with U:s4U ratio of 3:1 and 5:1 were synthesized. Their activity as messenger RNA was studied in an amino acid incorporation cell-free system from rat liver. It was shown that both copolymers can stimulate the incorporation of phenylalanine into oligophynylalamyl-tRNA.
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