World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
119
Citations
50002
World Ranking
3908
National Ranking
2137

Roger J. Hajjar publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Roger J. Hajjar sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 611 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 795 publications — 87th percentile

87% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

Roger J. Hajjar D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where Roger J. Hajjar sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 400 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 119 D-Index — 81st percentile

81% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Research.com Recognitions

  • Member of the Association of American Physicians
  • Member of the Association of American Physicians

Overview

Roger J. Hajjar is affiliated with the Icahn School of Medicine at Mount Sinai in the United States. Their research spans multiple domains within medicine, with a particular focus on cardiology and cardiovascular medicine, molecular biology, genetics, surgery, and biomedical engineering.

The scientist's primary fields of study include:

  • Medicine (91 publications)
  • Biochemistry, Genetics and Molecular Biology (63 publications)

Their subfields of specialization incorporate:

  • Cardiology and Cardiovascular Medicine (59 publications)
  • Molecular Biology (43 publications)
  • Genetics (17 publications)
  • Surgery (9 publications)
  • Biomedical Engineering (6 publications)

Main research topics covered by their work include:

  • Virus-based gene therapy research (28 publications)
  • Cardiac electrophysiology and arrhythmias (26 publications)
  • Cardiomyopathy and Myosin Studies (24 publications)
  • Viral Infections and Immunology Research (22 publications)
  • CRISPR and Genetic Engineering (18 publications)
  • Cardiac Fibrosis and Remodeling (12 publications)
  • Cardiovascular Effects of Exercise (12 publications)

Frequent publication venues for their work are:

  • Circulation (9 publications)
  • bioRxiv (Cold Spring Harbor Laboratory) (6 publications)
  • Circulation Research (4 publications)
  • Molecular Therapy (3 publications)
  • Journal of Molecular and Cellular Cardiology (3 publications)

They have collaborated frequently with several researchers, including:

  • Evangelia G. Kranias (12 joint publications)
  • Elena Chepurko (9 joint publications)
  • Lior Zangi (9 joint publications)
  • Dongtak Jeong (9 joint publications)
  • Anthony S. Fargnoli (8 joint publications)

Selected recent papers illustrate the scope of their research:

  • "Pkm2 Regulates Cardiomyocyte Cell Cycle and Promotes Cardiac Regeneration," 2020, Circulation
  • "Altering Sphingolipid Metabolism Attenuates Cell Death and Inflammatory Response After Myocardial Infarction," 2020, Circulation
  • "Global genome analysis reveals a vast and dynamic anellovirus landscape within the human virome," 2021, Cell Host & Microbe
  • "Investigation of the safety and feasibility of AAV1/SERCA2a gene transfer in patients with chronic heart failure supported with a left ventricular assist device - the SERCA-LVAD TRIAL," 2020, Gene Therapy
  • "Extracellular Vesicle-Encapsulated Adeno-Associated Viruses for Therapeutic Gene Delivery to the Heart," 2023, Circulation

Roger J. Hajjar has been recognized as a member of the Association of American Physicians.

Best Publications

  • Apoptosis in Myocytes in End-Stage Heart Failure

    J Narula;N Haider;R Virmani;T G DiSalvo

  • Calcium Upregulation by Percutaneous Administration of Gene Therapy in Cardiac Disease (CUPID) A Phase 2 Trial of Intracoronary Gene Therapy of Sarcoplasmic Reticulum Ca2+-ATPase in Patients With Advanced Heart Failure

    Mariell Jessup;Barry Greenberg;Donna Mancini;Thomas Cappola

  • Akt Activation Preserves Cardiac Function and Prevents Injury After Transient Cardiac Ischemia In Vivo

    Takashi Matsui;Jingzang Tao;Federica del Monte;Kyung-Han Lee

  • Accelerated atherosclerosis, aortic aneurysm formation, and ischemic heart disease in apolipoprotein E/endothelial nitric oxide synthase double-knockout mice

    Peter J. Kuhlencordt;Robert Gyurko;Fred Han;Marielle Scherrer-Crosbie

  • Periostin induces proliferation of differentiated cardiomyocytes and promotes cardiac repair

    Bernhard Kühn;Federica del Monte;Roger J Hajjar;Roger J Hajjar;Yuh-Shin Chang

  • Patient-Specific Induced Pluripotent Stem Cells as a Model for Familial Dilated Cardiomyopathy

    Ning Sun;Masayuki Yazawa;Jianwei Liu;Leng Han

  • Adenoviral gene transfer of SERCA2a improves left-ventricular function in aortic-banded rats in transition to heart failure

    Michael I. Miyamoto;Federica del Monte;Ulrich Schmidt;Thomas S. DiSalvo

  • Calcium Upregulation by Percutaneous Administration of Gene Therapy in Cardiac Disease (CUPID Trial), a First-in-Human Phase 1/2 Clinical Trial

    Brian E. Jaski;Mariell L. Jessup;Donna M. Mancini;Thomas P. Cappola

  • Restoration of Contractile Function in Isolated Cardiomyocytes From Failing Human Hearts by Gene Transfer of SERCA2a

    Federica del Monte;Sian E. Harding;Ulrich Schmidt;Takashi Matsui

  • Modulation of Cardiac Contractility by the Phopholamban/SERCA2a Regulatome

    Evangelia G. Kranias;Roger J. Hajjar

  • Improvement in Survival and Cardiac Metabolism After Gene Transfer of Sarcoplasmic Reticulum Ca2+-ATPase in a Rat Model of Heart Failure

    Federica del Monte;Eric Williams;Djemal Lebeche;Ulrich Schmidt

  • Glycogen Synthase Kinase-3β Is a Negative Regulator of Cardiomyocyte Hypertrophy

    Syed Haq;Gabriel Choukroun;Zhao Bin Kang;Hardeep Ranu

  • Differential Activation of Signal Transduction Pathways in Human Hearts With Hypertrophy Versus Advanced Heart Failure

    Syed Haq;Gabriel Choukroun;Hae Lim;Kevin M. Tymitz

  • Functional Consequences of Caspase Activation in Cardiac Myocytes

    Catherine Communal;Marius Sumandea;Pieter de Tombe;Jagat Narula

  • Endothelial to mesenchymal transition is common in atherosclerotic lesions and is associated with plaque instability

    Solene M Evrard;Laura Lecce;Katherine C Michelis;Aya Nomura-Kitabayashi

  • Empagliflozin Ameliorates Adverse Left Ventricular Remodeling in Nondiabetic Heart Failure by Enhancing Myocardial Energetics.

    Carlos G. Santos-Gallego;Carlos G. Santos-Gallego;Juan Antonio Requena-Ibanez;Rodolfo San Antonio;Kiyotake Ishikawa

  • FTO-Dependent N 6 -Methyladenosine Regulates Cardiac Function During Remodeling and Repair.

    Prabhu Mathiyalagan;Marta Adamiak;Joshua Mayourian;Yassine Sassi

  • Titin Isoform Switch in Ischemic Human Heart Disease

    Ciprian Neagoe;Michael Kulke;Federica del Monte;Judith K. Gwathmey

  • Inhibition of miR-25 improves cardiac contractility in the failing heart

    Christine Wahlquist;Dongtak Jeong;Agustin Rojas-Muñoz;Changwon Kho

  • Adenoviral gene transfer of activated phosphatidylinositol 3'-kinase and Akt inhibits apoptosis of hypoxic cardiomyocytes in vitro

    Takashi Matsui;Ling Li;Federica del Monte;Yasuhisa Fukui

Frequent Co-Authors

Valentin Fuster
Valentin Fuster Icahn School of Medicine at Mount Sinai
Juan J. Badimon
Juan J. Badimon Icahn School of Medicine at Mount Sinai
Evangelia G. Kranias
Evangelia G. Kranias University of Cincinnati Medical Center
Anthony Rosenzweig
Anthony Rosenzweig Harvard University
Ronald A. Li
Ronald A. Li University of Hong Kong
John V. Frangioni
John V. Frangioni Beth Israel Deaconess Medical Center
Zahi A. Fayad
Zahi A. Fayad Icahn School of Medicine at Mount Sinai
Ronglih Liao
Ronglih Liao Stanford University
Jagat Narula
Jagat Narula Icahn School of Medicine at Mount Sinai

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