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Bum-Rak Choi, Ph.D. - Publications

Affiliations: 
2001 University of Pittsburgh, Pittsburgh, PA, United States 
Area:
Animal Physiology Biology, General Biophysics, Pathology
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41 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2023 Choi BR, Ziv O, Salama G. Conduction delays across the specialized conduction system of the heart: Revisiting atrioventricular node (AVN) and Purkinje-ventricular junction (PVJ) delays. Frontiers in Cardiovascular Medicine. 10: 1158480. PMID 37153461 DOI: 10.3389/fcvm.2023.1158480  0.565
2020 Hwang J, Kim TY, Terentyev D, Zhong M, Kabakov AY, Bronk P, Arunachalam K, Belardinelli L, Rajamani S, Kunitomo Y, Pfeiffer Z, Lu Y, Peng X, Odening KE, Qu Z, ... ... Choi BR, et al. Late I blocker GS967 Suppress Polymorphic VT in a Transgenic Rabbit Model of Long QT Type 2. Circulation. Arrhythmia and Electrophysiology. PMID 32628505 DOI: 10.1161/Circep.118.006875  0.346
2018 Liu W, Kim TY, Huang X, Liu MB, Koren G, Choi BR, Qu Z. Mechanisms linking T-wave alternans to spontaneous initiation of ventricular arrhythmias in rabbit models of long QT syndrome. The Journal of Physiology. PMID 29377142 DOI: 10.1113/Jp275492  0.314
2015 Lau E, Kossidas K, Kim TY, Kunitomo Y, Ziv O, Zhen S, Taylor C, Schofield L, Yammine J, Liu G, Peng X, Qu Z, Koren G, Choi BR. Spatially Discordant Alternans and Arrhythmias in Tachypacing-Induced Cardiac Myopathy in Transgenic LQT1 Rabbits: The Importance of IKs and Ca2+ Cycling. Plos One. 10: e0122754. PMID 25970695 DOI: 10.1371/Journal.Pone.0122754  0.343
2015 Choi B, Li W, Terentyev D, Rees C, Terentieva R, Kim T, Peng X, Qu Z, Karma A, Koren G. Transient Outward K+ Current Underlies Heterogeneity of Action Potential Duration and Early Afterdepolarization from Right Ventricle in Transgenic Rabbit Model of Long QT Type 1 Biophysical Journal. 108: 113a. DOI: 10.1016/J.Bpj.2014.11.636  0.315
2015 Choi B, Kim TY, Grizotte-Lake M, Daley J, Schofield L, Bist K, Yammine J, Kunitomo Y, Lu Y, Peng X, Qu Z, Koren G. Modulation of Action Potential Alternans by IKs in Myocardial Infarction Biophysical Journal. 108: 273a. DOI: 10.1016/J.Bpj.2014.11.1498  0.316
2009 Ziv O, Morales E, Song YK, Peng X, Odening KE, Buxton AE, Karma A, Koren G, Choi BR. Origin of complex behaviour of spatially discordant alternans in a transgenic rabbit model of type 2 long QT syndrome. The Journal of Physiology. 587: 4661-80. PMID 19675070 DOI: 10.1113/Jphysiol.2009.175018  0.311
2009 Ng GA, Mantravadi R, Walker WH, Ortin WG, Choi BR, de Groat W, Salama G. Sympathetic nerve stimulation produces spatial heterogeneities of action potential restitution. Heart Rhythm : the Official Journal of the Heart Rhythm Society. 6: 696-706. PMID 19389655 DOI: 10.1016/J.Hrthm.2009.01.035  0.539
2008 Sims C, Reisenweber S, Viswanathan PC, Choi BR, Walker WH, Salama G. Sex, age, and regional differences in L-type calcium current are important determinants of arrhythmia phenotype in rabbit hearts with drug-induced long QT type 2. Circulation Research. 102: e86-100. PMID 18436794 DOI: 10.1161/Circresaha.108.173740  0.569
2008 Saba S, Mathier MA, Mehdi H, Gursoy E, Liu T, Choi BR, Salama G, London B. Prevention of adverse electrical and mechanical remodeling with biventricular pacing in a rabbit model of myocardial infarction. Heart Rhythm : the Official Journal of the Heart Rhythm Society. 5: 124-30. PMID 18180026 DOI: 10.1016/J.Hrthm.2007.08.021  0.59
2008 Saba S, Mathier MA, Mehdi H, Liu T, Choi BR, London B, Salama G. Dual-dye optical mapping after myocardial infarction: does the site of ventricular stimulation alter the properties of electrical propagation? Journal of Cardiovascular Electrophysiology. 19: 197-202. PMID 17971142 DOI: 10.1111/J.1540-8167.2007.00998.X  0.588
2007 Roell W, Lewalter T, Sasse P, Tallini YN, Choi BR, Breitbach M, Doran R, Becher UM, Hwang SM, Bostani T, von Maltzahn J, Hofmann A, Reining S, Eiberger B, Gabris B, et al. Engraftment of connexin 43-expressing cells prevents post-infarct arrhythmia. Nature. 450: 819-24. PMID 18064002 DOI: 10.1038/Nature06321  0.539
2007 Salama G, Choi BR. Imaging ventricular fibrillation. Journal of Electrocardiology. 40: S56-61. PMID 17993330 DOI: 10.1016/J.Jelectrocard.2007.06.021  0.54
2007 Choi BR, Jang W, Salama G. Spatially discordant voltage alternans cause wavebreaks in ventricular fibrillation. Heart Rhythm : the Official Journal of the Heart Rhythm Society. 4: 1057-68. PMID 17675081 DOI: 10.1016/J.Hrthm.2007.03.037  0.585
2007 Mantravadi R, Gabris B, Liu T, Choi BR, de Groat WC, Ng GA, Salama G. Autonomic nerve stimulation reverses ventricular repolarization sequence in rabbit hearts. Circulation Research. 100: e72-80. PMID 17363699 DOI: 10.1161/01.Res.0000264101.06417.33  0.544
2007 London B, Baker LC, Petkova-Kirova P, Nerbonne JM, Choi BR, Salama G. Dispersion of repolarization and refractoriness are determinants of arrhythmia phenotype in transgenic mice with long QT. The Journal of Physiology. 578: 115-29. PMID 17110412 DOI: 10.1113/Jphysiol.2006.122622  0.526
2007 Salama G, Doran R, Choi B, Kotlikoff M, Tallini YN. Calcium Waves in Embryonic Hearts The Faseb Journal. 21. DOI: 10.1096/Fasebj.21.5.A2-B  0.504
2006 Choi BR, Liu T, Salama G. Calcium transients modulate action potential repolarizations in ventricular fibrillation. Conference Proceedings : ... Annual International Conference of the Ieee Engineering in Medicine and Biology Society. Ieee Engineering in Medicine and Biology Society. Annual Conference. 1: 2264-7. PMID 17946507 DOI: 10.1109/IEMBS.2006.260059  0.556
2006 Hwang SM, Choi BR, Salama G. Monte Carlo simulation of 3D mapping of cardiac electrical activity with spinning slit confocal optics. Conference Proceedings : ... Annual International Conference of the Ieee Engineering in Medicine and Biology Society. Ieee Engineering in Medicine and Biology Society. Annual Conference. 1: 1093-7. PMID 17946022 DOI: 10.1109/IEMBS.2006.259837  0.504
2006 Choi BR, Hatton WJ, Hume JR, Liu T, Salama G. Low osmolarity transforms ventricular fibrillation from complex to highly organized, with a dominant high-frequency source. Heart Rhythm : the Official Journal of the Heart Rhythm Society. 3: 1210-20. PMID 17018354 DOI: 10.1016/J.Hrthm.2006.06.026  0.53
2006 Tallini YN, Ohkura M, Choi BR, Ji G, Imoto K, Doran R, Lee J, Plan P, Wilson J, Xin HB, Sanbe A, Gulick J, Mathai J, Robbins J, Salama G, et al. Imaging cellular signals in the heart in vivo: Cardiac expression of the high-signal Ca2+ indicator GCaMP2. Proceedings of the National Academy of Sciences of the United States of America. 103: 4753-8. PMID 16537386 DOI: 10.1073/Pnas.0509378103  0.573
2006 Mantravadi R, Ng G, Choi B, Gabris B, Liu T, Salama G. P4-11 Heart Rhythm. 3: S222. DOI: 10.1016/J.Hrthm.2006.02.666  0.464
2005 Salama G, Choi BR, Azour G, Lavasani M, Tumbev V, Salzberg BM, Patrick MJ, Ernst LA, Waggoner AS. Properties of new, long-wavelength, voltage-sensitive dyes in the heart. The Journal of Membrane Biology. 208: 125-40. PMID 16645742 DOI: 10.1007/S00232-005-0826-8  0.571
2005 Liu T, Choi BR, Drici MD, Salama G. Sex modulates the arrhythmogenic substrate in prepubertal rabbit hearts with Long QT 2. Journal of Cardiovascular Electrophysiology. 16: 516-24. PMID 15877623 DOI: 10.1046/J.1540-8167.2005.40622.X  0.572
2005 Liu T, Mantravadi R, Choi B, Salama G. The role of Na+/Ca2+ exchanger in eliciting early afterdepolarizations (EADs) and arrhythmias in a rabbit model of drug induced long QT syndrome 2 Heart Rhythm. 2: S298-S299. DOI: 10.1016/J.Hrthm.2005.02.940  0.535
2005 Ng A, Mantravadi R, Choi B, Liu T, Degroat W, Salama G. Action potential duration restitution during sympathetic nerve stimulation versus pacing Heart Rhythm. 2: S257-S258. DOI: 10.1016/J.Hrthm.2005.02.808  0.526
2005 Choi B, Jang W, Salama G. Patterns of wave break locations in ventricular fibrillation Heart Rhythm. 2: S216. DOI: 10.1016/J.Hrthm.2005.02.676  0.502
2005 Choi B, Liu T, Salama G. Swelling-activated Cl- currents influence spatial organization of ventricular fibrillation Heart Rhythm. 2: S177-S178. DOI: 10.1016/J.Hrthm.2005.02.554  0.56
2004 Choi BR, Liu T, Salama G. Adaptation of cardiac action potential durations to stimulation history with random diastolic intervals. Journal of Cardiovascular Electrophysiology. 15: 1188-97. PMID 15485446 DOI: 10.1046/J.1540-8167.2004.04070.X  0.599
2004 Baker LC, Wolk R, Choi BR, Watkins S, Plan P, Shah A, Salama G. Effects of mechanical uncouplers, diacetyl monoxime, and cytochalasin-D on the electrophysiology of perfused mouse hearts. American Journal of Physiology. Heart and Circulatory Physiology. 287: H1771-9. PMID 15191898 DOI: 10.1152/Ajpheart.00234.2004  0.589
2003 Choi BR, Liu T, Lavasani M, Salama G. Fiber orientation and cell-cell coupling influence ventricular fibrillation dynamics. Journal of Cardiovascular Electrophysiology. 14: 851-60. PMID 12890049 DOI: 10.1046/J.1540-8167.2003.02522.X  0.452
2003 London B, Baker LC, Lee JS, Shusterman V, Choi BR, Kubota T, McTiernan CF, Feldman AM, Salama G. Calcium-dependent arrhythmias in transgenic mice with heart failure. American Journal of Physiology. Heart and Circulatory Physiology. 284: H431-41. PMID 12388316 DOI: 10.1152/Ajpheart.00431.2002  0.621
2002 Choi BR, Burton F, Salama G. Cytosolic Ca2+ triggers early afterdepolarizations and Torsade de Pointes in rabbit hearts with type 2 long QT syndrome. The Journal of Physiology. 543: 615-31. PMID 12205194 DOI: 10.1113/Jphysiol.2002.024570  0.586
2002 Choi BR, Nho W, Liu T, Salama G. Life span of ventricular fibrillation frequencies. Circulation Research. 91: 339-45. PMID 12193467 DOI: 10.1161/01.Res.0000031801.84308.F4  0.558
2001 Choi BR, Liu T, Salama G. Ventricular fibrillation: Mother rotor or multiple wavelets? Circulation Research. 89: E30. PMID 11509455  0.507
2001 Choi BR, Liu T, Salama G. The distribution of refractory periods influences the dynamics of ventricular fibrillation. Circulation Research. 88: E49-58. PMID 11249880 DOI: 10.1161/01.Res.88.5.E49  0.622
2001 Choi B, Liu T, Salama G. Letter to the Editor Circulation Research. 89. DOI: 10.1161/Res.89.4.E30  0.594
2000 Salama G, Choi BR. Images of Action Potential Propagation in Heart. News in Physiological Sciences : An International Journal of Physiology Produced Jointly by the International Union of Physiological Sciences and the American Physiological Society. 15: 33-41. PMID 11390873 DOI: 10.1152/Physiologyonline.2000.15.1.33  0.588
2000 Choi BR, Salama G. Simultaneous maps of optical action potentials and calcium transients in guinea-pig hearts: mechanisms underlying concordant alternans. The Journal of Physiology. 529: 171-88. PMID 11080260 DOI: 10.1111/J.1469-7793.2000.00171.X  0.621
2000 Baker LC, London B, Choi BR, Koren G, Salama G. Enhanced dispersion of repolarization and refractoriness in transgenic mouse hearts promotes reentrant ventricular tachycardia. Circulation Research. 86: 396-407. PMID 10700444 DOI: 10.1161/01.Res.86.4.396  0.593
1998 Choi BR, Salama G. Optical mapping of atrioventricular node reveals a conduction barrier between atrial and nodal cells. The American Journal of Physiology. 274: H829-45. PMID 9530194 DOI: 10.1152/Ajpheart.1998.274.3.H829  0.566
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