Paul E Torgersen Research Excellence Award.
B.E., Anna University, 2011
Ph.D., Virginia Tech - Wake Forest University, 2016
Chen, Z., Lin, Z., Obaid, S.N., Rytkin, E., George, S.A., Bach, C., Madrid, M., Liu, M., LaPiano, J., Fehr, A., Shi, X., Quirion, N., Russo, B., Knight, H., Aduwari, A., Efimov, I.R., & Lu, L. (2023). Soft, bioresorbable, transparent microelectrode arrays for multimodal spatiotemporal mapping and modulation of cardiac physiology. Sci Adv, 9(27), eadi0757.American Association for the Advancement of Science (AAAS). doi: 10.1126/sciadv.adi0757.
George, S.A., Brennan-McLean, J.A., Trampel, K.A., Rytkin, E., Faye, N.R., Knollmann, B.C., & Efimov, I.R. (2023). Ryanodine receptor inhibition with acute dantrolene treatment reduces arrhythmia susceptibility in human hearts. Am J Physiol Heart Circ Physiol, 325(4), H720-H728.American Physiological Society. doi: 10.1152/ajpheart.00103.2023.
George, S.A., Kiss, A., Trampel, K.A., Obaid, S.N., Tang, L., Efimov, I.R., & Efimova, T. (2023). Anthracycline cardiotoxicity is exacerbated by global p38β genetic ablation in a sexually dimorphic manner but unaltered by cardiomyocyte-specific p38α loss. Am J Physiol Heart Circ Physiol, 325(5), H983-H997.American Physiological Society. doi: 10.1152/ajpheart.00458.2023.
George, S.A., Lin, Z., & Efimov, I.R. (2022). Simultaneous triple-parametric optical mapping of transmembrane potential, intracellular calcium and NADH for cardiac physiology assessment. Commun Biol, 5(1), 319.Springer Science and Business Media LLC. doi: 10.1038/s42003-022-03279-y.
Warhol, A., George, S.A., Obaid, S.N., Efimova, T., & Efimov, I.R. (2021). Differential cardiotoxic electrocardiographic response to doxorubicin treatment in conscious versus anesthetized mice. Physiol Rep, 9(15), e14987.Wiley. doi: 10.14814/phy2.14987.
Miller, J.M., Meki, M.H., Ou, Q., George, S.A., Gams, A., Abouleisa, R.R.E., Tang, X.L., Ahern, B.M., Giridharan, G.A., El-Baz, A., Hill, B.G., Satin, J., Conklin, D.J., Moslehi, J., Bolli, R., Ribeiro, A.J.S., Efimov, I.R., & Mohamed, T.M.A. (2020). Heart slice culture system reliably demonstrates clinical drug-related cardiotoxicity. Toxicology and Applied Pharmacology, 406, 115213.Elsevier BV. doi: 10.1016/j.taap.2020.115213.
Efimov, I.R., & George, S. (2018). Authors’ Reply: Unravelling the Mysteries Of The Human AV Node. Arrhythmia & Electrophysiology Review, 7(1), 64.Radcliffe Group Ltd. doi: 10.15420/aer.2018.7.1.l1.r1.
George, S.A., Faye, N.R., Murillo-Berlioz, A., Lee, K.B., Trachiotis, G.D., & Efimov, I.R. (2017). At the Atrioventricular Crossroads: Dual Pathway Electrophysiology in the Atrioventricular Node and its underlying Heterogeneities. Arrhythmia & Electrophysiology Review, 6(4), 179.Radcliffe Group Ltd. doi: 10.15420/aer.2017.30.1.
Greer-Short, A., George, S.A., Poelzing, S., & Weinberg, S.H. (2017). Revealing the Concealed Nature of Long-QT Type 3 Syndrome. Circulation: Arrhythmia and Electrophysiology, 10(2).Ovid Technologies (Wolters Kluwer Health). doi: 10.1161/circep.116.004400.
George, S.A., & Poelzing, S. (2016). Cardiac conduction in isolated hearts of genetically modified mice – Connexin43 and salts. Progress in Biophysics and Molecular Biology, 120(1-3), 189-198.Elsevier BV. doi: 10.1016/j.pbiomolbio.2015.11.004.
George, S.A., Bonakdar, M., Zeitz, M., Davalos, R.V., Smyth, J.W., & Poelzing, S. (2016). Extracellular sodium dependence of the conduction velocity-calcium relationship: evidence of ephaptic self-attenuation. American Journal of Physiology-Heart and Circulatory Physiology, 310(9), H1129-H1139.American Physiological Society. doi: 10.1152/ajpheart.00857.2015.
George, S.A., Sciuto, K.J., Lin, J., Salama, M.E., Keener, J.P., Gourdie, R.G., & Poelzing, S. (2015). Extracellular sodium and potassium levels modulate cardiac conduction in mice heterozygous null for the Connexin43 gene. Pflügers Archiv - European Journal of Physiology, 467(11), 2287-2297.Springer Science and Business Media LLC. doi: 10.1007/s00424-015-1698-0.
Cathey, B., Obaid, S., Zolotarev, A.M., Pryamonosov, R.A., Syunyaev, R.A., George, S.A., & Efimov, I.R. Open-Source Multiparametric Optocardiography. Scientific Reports, 9(1).Springer Science and Business Media LLC. doi: 10.1038/s41598-018-36809-y.
Entz, M., George, S.A., Zeitz, M.J., Raisch, T., Smyth, J.W., & Poelzing, S. Heart Rate and Extracellular Sodium and Potassium Modulation of Gap Junction Mediated Conduction in Guinea Pigs. Frontiers in Physiology, 7.Frontiers Media SA. doi: 10.3389/fphys.2016.00016.
George, S.A., Brennan, J.A., & Efimov, I.R. Preclinical Cardiac Electrophysiology Assessment by Dual Voltage and Calcium Optical Mapping of Human Organotypic Cardiac Slices. Journal of Visualized Experiments, (160).MyJove Corporation. doi: 10.3791/60781.
George, S.A., Calhoun, P.J., Gourdie, R.G., Smyth, J.W., & Poelzing, S. TNFα Modulates Cardiac Conduction by Altering Electrical Coupling between Myocytes. Frontiers in Physiology, 8.Frontiers Media SA. doi: 10.3389/fphys.2017.00334.
George, S.A., Kiss, A., Obaid, S.N., Venegas, A., Talapatra, T., Wei, C., Efimova, T., & Efimov, I.R. p38δ genetic ablation protects female mice from anthracycline cardiotoxicity. Cold Spring Harbor Laboratory. doi: 10.1101/2020.03.02.973347.
George, S.A., Lin, Z., & Efimov, I.R. Simultaneous Triple-Parametric Optical Mapping of Transmembrane Potential, Intracellular Calcium and NADH for Cardiac Physiology Assessment. Cold Spring Harbor Laboratory. doi: 10.1101/2021.09.09.459667.
George, S.A., Trampel, K.A., Brunner, K., & Efimov, I.R. Moderate Endurance Exercise Increases Arrhythmia Susceptibility and modulates Cardiac Structure and Function in a Sexually Dimorphic manner. Cold Spring Harbor Laboratory. doi: 10.1101/2023.08.21.554195.