Research Topics
| Jonathan LeorSummaryAffiliation: Tel Aviv University Country: Israel Publications
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Detail Information
Publications
Cell transplantation and genetic engineering: new approaches to cardiac pathologyJonathan Leor
Neufeld Cardiac Research Institute, Tel Aviv University, Sheba Medical Center, Tel Hashomer 52621, Israel
Expert Opin Biol Ther 3:1023-39. 2003..The present review will focus on selected topics related to the promise and obstacles associated with cell transplantation, with and without genetic manipulation, for myocardial repair...
Human embryonic stem cell transplantation to repair the infarcted myocardiumJonathan Leor
Neufeld Cardiac Research Institute, Sheba Medical Centre, Tel Aviv University, Tel Hashomer, Israel
Heart 93:1278-84. 2007....
Myocardial tissue engineering: creating a muscle patch for a wounded heartJonathan Leor
Neufeld Cardiac Research Institute, Tel Aviv University, Sheba Medical Center, Tel Hashomer 52621, Israel
Ann N Y Acad Sci 1015:312-9. 2004..Here, we present an up-to-date summary of research studies in cardiac tissue engineering, with an emphasis on the critical design principles...
Cells, scaffolds, and molecules for myocardial tissue engineeringJonathan Leor
Neufeld Cardiac Research Institute, Tel Aviv University, Sheba Medical Center, Tel Hashomer 52621, Israel
Pharmacol Ther 105:151-63. 2005..The purpose of our review is to describe the principles, status, and challenges of myocardial tissue engineering with emphasize on the concept of in situ cardiac tissue engineering and regeneration...
Renovation of the injured heart with myocardial tissue engineeringJonathan Leor
Sheba Medical Center, Neufeld Cardiac Research Institute, Tel Aviv University, Tel Hashomer 52621, Israel
Expert Rev Cardiovasc Ther 4:239-52. 2006..In addition, the new strategy of in situ and injectable tissue engineering for myocardial repair and regeneration is presented...
Human umbilical cord blood-derived CD133+ cells enhance function and repair of the infarcted myocardiumJonathan Leor
Neufeld Cardiac Research Institute, Sheba Medical Center, Tel Aviv University, Tel Hashomer, Israel
Stem Cells 24:772-80. 2006..In conclusion, the present work suggests that, after MI, intravenous delivery of human UCB-derived CD133+ cells can produce functional recovery by preventing scar thinning and LV systolic dilatation...
Intracoronary injection of in situ forming alginate hydrogel reverses left ventricular remodeling after myocardial infarction in SwineJonathan Leor
Neufeld Cardiac Research Institute, Sheba Medical Center, Tel Aviv University, Tel Hashomer 52621, Israel
J Am Coll Cardiol 54:1014-23. 2009..This study sought to determine whether alginate biomaterial can be delivered effectively into the infarcted myocardium by intracoronary injection to prevent left ventricular (LV) remodeling early after myocardial infarction (MI)...
Reprogramming cells for transplantationJonathan Leor
Neufeld Cardiac Research Institute, Sheba Medical Center, Tel Hashomer, Israel
Heart Fail Rev 8:285-92. 2003....
Underuse of standard care and outcome of patients with acute myocardial infarction and chronic renal insufficiencyAriel Tessone
Neufeld Cardiac Research Institute, Tel Aviv University, Tel Hashomer, Israel
Cardiology 108:193-9. 2007..To investigate characteristics, management and outcome of patients with acute myocardial infarction (AMI) and chronic renal insufficiency (CRI)...
Effect of injectable alginate implant on cardiac remodeling and function after recent and old infarcts in ratNatali Landa
Neufeld Cardiac Research Institute, Sheba Medical Center, Tel Aviv University, Tel Hashomer 52621, Israel
Circulation 117:1388-96. 2008..We hypothesized that injection of in situ-forming alginate hydrogel into recent and old infarcts would provide a temporary scaffold and attenuate adverse cardiac remodeling and dysfunction...
Patient characteristics and cell source determine the number of isolated human cardiac progenitor cellsAyelet Itzhaki-Alfia
Neufeld Cardiac Research Institute, Sheba Medical Center, Tel Hashomer, Israel
Circulation 120:2559-66. 2009..Using a novel method to isolate human cardiac progenitor cells, we aimed to define the optimal source and association between their number and patient characteristics...
Evaluation of a peritoneal-generated cardiac patch in a rat model of heterotopic heart transplantationGabriel Amir
Neufeld Cardiac Research Institute, Sheba Medical Center, Tel Aviv University, Tel Hashomer, Israel
Cell Transplant 18:275-82. 2009..Our study also offers a viable rat model for screening and evaluating new concepts in cardiac reconstruction and engineering...
Systemic delivery of bone marrow-derived mesenchymal stem cells to the infarcted myocardium: feasibility, cell migration, and body distributionIsrael M Barbash
Neufeld Cardiac Research Institute, Sheba Medical Center, Tel-Hashomer 52621, Israel
Circulation 108:863-8. 2003..Direct left ventricular cavity infusion enhances migration and colonization of the cells preferentially to the ischemic myocardium...
Functional capacity impairment in patients with coronary artery disease: prevalence, risk factors and prognosisAlexander Tenenbaum
Cardiac Rehabilitation Institute, Chaim Sheba Medical Center, Tel Hashomer 52621, Israel
Cardiology 100:207-15. 2003..The present study was aimed to evaluate the outcome of CAD-related functional capacity impairment in patients with and without a history of MI over a 7.7-year follow-up...
Cellular cardiomyoplasty of cardiac fibroblasts by adenoviral delivery of MyoD ex vivo: an unlimited source of cells for myocardial repairSharon Etzion
Neufeld Cardiac Research Institute, Tel-Aviv University, Sheba Medical Center, Tel-Hashomer, Israel
Circulation 106:I125-30. 2002..CONCLUSIONS: Our work shows that it is possible to exploit the unique capacity of MyoD to activate myogenesis in fibroblasts ex vivo and to create a vast source of autologous myogenic cells for transplantation...
Ex vivo activated human macrophages improve healing, remodeling, and function of the infarcted heartJonathan Leor
Neufeld Cardiac Research Institute, Tel Aviv University, Israel
Circulation 114:I94-100. 2006..Activated macrophages have a significant role in wound healing and damaged tissue repair. We sought to explore the ability of ex vivo activated macrophages to promote healing and repair of the infarcted myocardium...
Refractoriness and conduction interaction during modulation of non-ischemic ventricular fibrillation by flecainideGiora Amitzur
Neufeld Cardiac Research Institute, Tel Aviv University, Israel
Cardiovasc Drugs Ther 17:237-47. 2003..To study refractoriness and conduction interaction during modulation of non-ischemic ventricular fibrillation (VF) by flecainide...
Effect of bezafibrate on incidence of type 2 diabetes mellitus in obese patientsAlexander Tenenbaum
Cardiac Rehabilitation Institute, Chaim Sheba Medical Center, Tel Hashomer 52621, Israel
Eur Heart J 26:2032-8. 2005..To assess the effect of fibric acid derivative bezafibrate on incidence of type 2 diabetes in obese patients over a median 6.3 years follow-up period...
Iron-oxide labeling and outcome of transplanted mesenchymal stem cells in the infarcted myocardiumYoram Amsalem
Neufeld Cardiac Research Institute, Sheba Medical Center, Tel Hashomer 52621, Israel
Circulation 116:I38-45. 2007..We sought to determine whether mesenchymal stem cell (MSC) outcome is affected by SPIO labeling in a rat model of myocardial infarction...
Effect of bundle branch block patterns on mortality in hospitalized patients with heart failureAlon Barsheshet
Heart Institute, Sheba Medical Center, and Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
Am J Cardiol 101:1303-8. 2008..In conclusion, RBBB rather than LBBB is an independent predictor of mortality in hospitalized patients with systolic HF. This prognostic marker could be used for risk stratification and the selection of treatment...
Outcome of myocardial infarction in patients treated with aspirin is enhanced by pre-hospital administrationIsrael M Barbash
Neufeld Cardiac Research Institute, Tel-Aviv University, Sheba Medical Center, Tel-Hashomer, Israel
Cardiology 98:141-7. 2002..CONCLUSIONS: Outcome of AMI patients treated with aspirin is improved by pre-hospital administration. Our findings suggest that emergency pre-hospital aspirin might facilitate early reperfusion...
Is hypoglycaemia a marker for increased long-term mortality risk in patients with coronary artery disease? An 8-year follow-upEnrique Z Fisman
Cardiac Rehabilitation Institute, Chaim Medical Center, Tel Hashomer, and Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
Eur J Cardiovasc Prev Rehabil 11:135-43. 2004..We aimed to investigate the relationship between hypoglycaemia and all-cause, cardiovascular and cancer mortality in a large population of patients with CAD...
Myocardial regeneration by adult stem cellsIsrael M Barbash
Neufeld Cardiac Research Institute, Sheba Medical Center, Tel Hashomer, Israel
Isr Med Assoc J 8:283-7. 2006..The present review aims to describe the potential, the current status and the future challenges of myocardial regeneration by adult stem cells...
Prevalence and significance of unrecognized renal insufficiency in patients with heart failureYoram Amsalem
Neufeld Cardiac Research Institute, Sheba Medical Center, Tel Aviv University, Tel Hashomer 52621, Israel
Eur Heart J 29:1029-36. 2008..Renal insufficiency (RI) is a strong predictor of adverse outcome in patients with heart failure (HF). We aimed to determine the prevalence of RI being unrecognized and its significance in patients hospitalized with HF...
Effect of matrix metalloproteinase inhibition by doxycycline on myocardial healing and remodeling after myocardial infarctionAriel Tessone
Neufeld Cardiac Research Institute, Sheba Medical Center, Tel-Aviv University, Tel Hashomer, Israel
Cardiovasc Drugs Ther 19:383-90. 2005..Our findings caution against aggressive, non-selective inhibition of MMPs in the early healing phase after MI...
Admission blood glucose level and mortality among hospitalized nondiabetic patients with heart failureAlon Barsheshet
Neufeld Cardiac Research Institute, Sheba Medical Center, Tel Hashomer 52621, Israel
Arch Intern Med 166:1613-9. 2006..CONCLUSIONS: Elevated admission blood glucose levels are associated with increased in-hospital and 60-day mortality, but not 6-month or 1-year mortality, in nondiabetic patients hospitalized because of HF...
Functional class in patients with heart failure is associated with the development of diabetesAlexander Tenenbaum
Cardiac Rehabilitation Institute, Neufeld Cardiac Research Institute, The Chaim Sheba Medical Center, Tel Hashomer, 52621 Israel
Am J Med 114:271-5. 2003..We followed patients with coronary artery disease who participated in the Bezafibrate Infarction Prevention study to determine the incidence of diabetes by baseline functional status during a 7.7-year follow-up...
Comparison of effectiveness of angiotensin-converting enzyme inhibitors after acute myocardial infarction in diabetic versus nondiabetic patientsShmuel Gottlieb
Neufeld Cardiac Research Institute Sheba Medical Center, Tel Hashomer, Israel
Am J Cardiol 92:1020-5. 2003..56 to 1.15). Thus, treatment with ACE inhibitors after AMI appears to be particularly beneficial in diabetic patients. The beneficial effect observed supports the widespread use of ACE inhibitors in diabetic patients after AMI...
Protocols for myocardial infarction repair using fetal cardiac myocytesSharon Etzion
Neufeld Cardiac Research Institute, Tel-Aviv University, Sheba Medical Center, Tel-Hashomer, Israel
Methods Mol Med 112:205-21. 2005..We describe methods of cell isolation, culture, labeling, and assessment of the influence of the engrafted cells on left ventricular remodeling and function...
Evaluation of the pro-angiogenic effect of factor XIII in heterotopic mouse heart allografts and FXIII-deficient miceRima Dardik
Institute of Thrombosis and Hemostasis, Sheba Medical Center, Tel Hashomer, Israel
Thromb Haemost 95:546-50. 2006..The results of this study provide substantial in vivo evidence for the proangiogenic activity of FXIIIa...
Association of elevated homocysteine levels with a higher risk of recurrent coronary events and mortality in patients with acute myocardial infarctionShlomi Matetzky
Heart Institute, Sheba Medical Center, Tel Hashomer, Israel
Arch Intern Med 163:1933-7. 2003....
Effects of a vildagliptin/metformin combination on markers of atherosclerosis, thrombosis, and inflammation in diabetic patients with coronary artery diseaseRobert Klempfner
Cardiac Rehabilitation Institute, Leviev Heart Center, Sheba Medical Center, 52621, Tel Hashomer, Israel
Cardiovasc Diabetol 11:60. 2012..Animal evidence indicates that dipeptidyl peptidase-4 inhibitors have anti-atherosclerotic effects, yet clinical data are scarcely available...
A prospective national survey of management and clinical outcome of acute myocardial infarction in Israel, 2000Solomon Behar
Israel Center for Disease Control, Gertner Institute, Tel Hashomer, Israel
Isr Med Assoc J 5:249-54. 2003..Little information is available on the clinical practice and implementation of guidelines for treating acute myocardial infarction patients in Israel...
The effects of external counter pulsation therapy on circulating endothelial progenitor cells in patients with angina pectorisAlon Barsheshet
Neufeld Cardiac Research Institute, Sheba Medical Center, Tel Hashomer, Israel
Cardiology 110:160-6. 2008..External counter pulsation therapy (ECPT) offers symptomatic relief and improves ischemia in patients with refractory angina pectoris. We aimed to determine the effects of ECPT on circulating endothelial progenitor cells (EPCs)...
Peroxisome proliferator-activated receptor ligand bezafibrate for prevention of type 2 diabetes mellitus in patients with coronary artery diseaseAlexander Tenenbaum
Cardiac Rehabilitation Institute, Chaim Sheba Medical Center, Tel Hashomer, 52621 Israel
Circulation 109:2197-202. 2004..2-year follow-up period...
The management, early and one year outcome in hospitalized patients with heart failure: a national Heart Failure Survey in Israel--HFSIS 2003Moshe Garty
Recanati Center, Rabin Medical Center, Beilinson Campus, Petah Tikva, Israel
Isr Med Assoc J 9:227-33. 2007..Despite improved management of heart failure patients, their prognosis remains poor...
Soluble intercellular adhesion molecule-1 and long-term risk of acute coronary events in patients with chronic coronary heart disease. Data from the Bezafibrate Infarction Prevention (BIP) StudyMoti Haim
Sackler School of Medicine, Tel Aviv University, Tel Aviv, Israel
J Am Coll Cardiol 39:1133-8. 2002..The goal of this study was to assess soluble intercellular adhesion molecule-1 (sICAM-1) level as a predictor of future acute coronary events in patients with chronic coronary heart disease (CHD)...
Cancer cells ablation with irreversible electroporationLiron Miller
Neufeld Cardiac Research Institute, Sheba Medical Center, Tel-Aviv University, Tel-Hashomer, Israel
Technol Cancer Res Treat 4:699-705. 2005..We also find that the use of multiple pulses appears to be more effective for cancer cell ablation than the application of the same energy in one single pulse...
Modulation of ventricular fibrillation in isolated perfused heart by dofetilideGiora Amitzur
Neufeld Cardiac Research Institute, Sheba Medical Center, Tel Hashomer 52621, Israel
J Cardiovasc Pharmacol 41:838-48. 2003..These changes in fibrillation suggest that these effects are mainly associated with refractoriness prolongation and do not seem to be attenuated by conduction suppression...
Prolonged 24-hour subzero preservation of heterotopically transplanted rat hearts using antifreeze proteins derived from arctic fishGabriel Amir
Heart Transplantation Unit, Department of Cardiac Surgery, Sheba Medical Center, Tel Hashomer, Israel
Ann Thorac Surg 77:1648-55. 2004..We report 24-hour storage of mammalian hearts for transplantation at subzero temperatures using AFPs derived from arctic fish...
Timing of aspirin administration as a determinant of survival of patients with acute myocardial infarction treated with thrombolysisDov Freimark
The Heart Institute, Sheba Medical Center, Tel-Aviv University, Tel-Hashomer, Israel
Am J Cardiol 89:381-5. 2002..39, 95% confidence interval 0.17 to 0.82), and at 1 year (odds ratio 0.41, 95% confidence interval 0.21 to 0.74). Our study proposes a time-dependent benefit from aspirin in patients with AMI treated with thrombolysis...
Influence of the new definition of acute myocardial infarction on coronary care unit admission, discharge diagnosis, management and outcome in patients with non-ST elevation acute coronary syndromes: a national surveyDoron Zahger
Department of Cardiology, Soroka Medical Center, Beer Sheva, Israel
Int J Cardiol 106:164-9. 2006..Major changes occurred recently in the definition and recommended management of non-ST segment elevation acute coronary syndromes (NSTE ACS). The impact of these changes on the coronary care unit (CCU) is incompletely characterized...
Optimization of cardiac cell seeding and distribution in 3D porous alginate scaffoldsAyelet Dar
Department of Biotechnology Engineering and The Institute for Applied Biosciences, Ben-Gurion University of the Negev, Beer-Sheva 84105 Israel
Biotechnol Bioeng 80:305-12. 2002..This may enable the development of cardiac cocultures, without domination of cardiofibroblasts with time...
Myocardial repair: from salvage to tissue reconstructionEmil Ruvinov
Department of Biotechnology Engineering, Ben Gurion University of the Negev, Beer Sheva 84105, Israel
Expert Rev Cardiovasc Ther 6:669-86. 2008..Finally, we consider novel approaches to myocardial tissue engineering as a platform for the integration of various modalities in an attempt to rejuvenate infarcted tissue in vivo...
Cardiomyocyte transplantation into the failing heart-new therapeutic approach for heart failure?Thorsten Reffelmann
The Heart Institute, Good Samaritan Hospital, University of Southern California, Los Angeles, CA 90017 2395, USA
Heart Fail Rev 8:201-11. 2003..In this review, we critically evaluate the potential value of cardiomyocyte transplantation as a new approach in the treatment of the syndrome of "heart failure"...
Editorial: regeneration hope to grow a new heart muscleJonathan Leor
Heart Fail Rev 8:197-9. 2003
Autospecies and post-myocardial infarction sera enhance the viability, proliferation, and maturation of 3D cardiac cell cultureRan Schwarzkopf
Department of Biotechnology Engineering, Ben-Gurion University of the Negev, Beer-Sheva, Israel
Tissue Eng 12:3467-75. 2006..The results presented in this study indicate that media supplemented with post-MI adult rat serum and normal adult rat serum compared to FCS have a significant advantage in the regeneration of injured cardiac tissue...
Rebuilding broken hearts. Biologists and engineers working together in the fledgling field of tissue engineering are within reach of one of their greatest goals: constructing a living human heart patchSmadar Cohen
Ben-Gurion University of the Negev, Isreal
Sci Am 291:44-51. 2004..Unlike liver or skin, heart tissue cannot regenerate, so the scar left after a heart attack remains a noncontractile dead zone...
Trends in management, hospital and long-term outcomes of elderly patients with acute myocardial infarctionShmuel Gottlieb
Cardiology Department, Bikur Cholim Hospital, Jerusalem Hashomer
Am J Med 120:90-7. 2007..Several studies have reported a decline in mortality after myocardial infarction; however, the magnitude of the decline among the elderly has not been fully investigated...
Characteristics, management and outcome of patients with prior coronary bypass surgery presenting with acute myocardial infarctionDoron Zahger
Soroka Medical Center, Beer Sheva, Israel
Cardiology 99:105-10. 2003..Coronary angiography is associated with improved outcome in these patients but is currently used to the same extent as in patients without prior surgery...
Late mortality and determinants in patients with heart failure and preserved systolic left ventricular function: the Israel Nationwide Heart Failure SurveyBasil S Lewis
Department of Cardiovascular Medicine, Lady Davis Carmel Medical Center, Haifa, Israel
Isr Med Assoc J 9:234-8. 2007..Heart failure with preserved systolic left ventricular function is a major cause of cardiac disability...
Coronary intervention for persistent occlusion after myocardial infarctionJudith S Hochman
Cardiovascular Clinical Research Center, Leon Charney Division of Cardiology, New York University School of Medicine, New York 10016, USA
N Engl J Med 355:2395-407. 2006..ClinicalTrials.gov number, NCT00004562 [ClinicalTrials.gov].)...
Endothelial progenitors: a new Tower of Babel?Jonathan Leor
J Am Coll Cardiol 48:1588-90. 2006
Status of glucose metabolism in patients with heart failure secondary to coronary artery diseaseAlexander Tenenbaum
Cardiac Rehabilitation Institute, Tel-Aviv, Israel
Am J Cardiol 90:529-32. 2002
Recommendations for the structure, organization, and operation of intensive cardiac care unitsYonathan Hasin
Poria Medical Center, M P Lower Galilee, Tiberias, Israel
Eur Heart J 26:1676-82. 2005..The desired function is discussed, namely, the patients to be admitted, the length of stay, and the relocation policy. A uniformed electronic chart for ICCUs is advised, anticipating a common European database...
Presenting symptoms, admission electrocardiogram, management, and prognosis in acute coronary syndromes: differences by ageShlomo Stern
Heiden Department of Cardiology, Bikur Cholim Hospital, Jerusalem, Israel
Am J Geriatr Cardiol 13:188-96. 2004..Seven-day, 30-day, and 1-year mortality increased with advancing age. No anginal pain/atypical symptoms on presentation were associated with an increased early and late mortality in all three age subgroups...
