World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
96
Citations
28516
World Ranking
9804
National Ranking
5039

A. John Barrett 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 A. John Barrett 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: 610 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: 480 publications — 54th percentile

54% of scientists in this discipline score the same or lower.

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

A. John Barrett 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 A. John Barrett 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: 399 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: 96 D-Index — 53rd percentile

53% of scientists in this discipline score the same or lower.

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

Overview

A. John Barrett is a researcher affiliated with the National Institutes of Health in the United States. Their work primarily focuses on the field of Medicine, with subfields covering Hematology, Oncology, Genetics, Cardiology and Cardiovascular Medicine, as well as Public Health, Environmental and Occupational Health.

The scientist's research topics encompass various aspects of hematologic and oncologic conditions and treatments. These include:

  • CAR-T cell therapy research
  • Virus-based gene therapy research
  • Hematopoietic Stem Cell Transplantation
  • Chemotherapy-induced cardiotoxicity and mitigation
  • Acute Lymphoblastic Leukemia research
  • Acute Myeloid Leukemia Research
  • Pancreatic function and diabetes

Among their recent publications are studies presented across multiple respected journals. The following papers illustrate the scope and variety of their research:

  • "Outcome of donor-derived TAA-T cell therapy in patients with high-risk or relapsed acute leukemia post allogeneic BMT," published in 2022 in Blood Advances
  • "Framingham Risk Score Is an Ineffective Screening Strategy for Coronary Heart Disease in Long-Term Allogeneic Hematopoietic Cell Transplant Survivors," published in 2020 in Clinical Hematology International
  • "Functional Characterization of Glucokinase Variants to Aid Clinical Interpretation of Monogenic Diabetes," published in 2025 in International Journal of Molecular Sciences

Frequent collaborators in Barrett's recent work include Hannah Kinoshita, Kenneth R. Cooke, Melanie Grant, Maja Stanojević, and Carolina Colli Cruz. These co-authors have partnered on studies likely linked to the main avenues of hematology and oncology research that Barrett pursues.

The scientist's publications have appeared repeatedly in journals such as Blood Advances, Clinical Hematology International, and International Journal of Molecular Sciences, indicating ongoing engagement with audiences in clinical hematology, oncology, and molecular biology.

Best Publications

  • Regression of metastatic renal-cell carcinoma after nonmyeloablative allogeneic peripheral-blood stem-cell transplantation.

    Childs R;Chernoff A;Contentin N;Bahceci E

  • Engraftment kinetics after nonmyeloablative allogeneic peripheral blood stem cell transplantation: full donor T-cell chimerism precedes alloimmune responses.

    R. Childs;E. Clave;N. Contentin;D. Jayasekera

  • Severity of chronic graft-versus-host disease: association with treatment-related mortality and relapse

    Stephanie J. Lee;John P. Klein;A. John Barrett;Olle Ringden

  • Infusion of donor-derived CD19-redirected virus-specific T cells for B-cell malignancies relapsed after allogeneic stem cell transplant: a phase 1 study

    Conrad Russell Y. Cruz;Kenneth P. Micklethwaite;Barbara Savoldo;Carlos A. Ramos

  • Graft-versus-leukemia reactions in allogeneic chimeras

    Hans-Jochem Kolb;Hans-Jochem Kolb;Christoph Schmid;Christoph Schmid;A. John Barrett;A. John Barrett;Dolores J. Schendel;Dolores J. Schendel

  • Early cytomegalovirus reactivation remains associated with increased transplant related mortality in the current era: a CIBMTR analysis

    Pierre Teira;Minoo Battiwalla;Muthalagu Ramanathan;A. John Barrett

  • High donor FOXP3-positive regulatory T-cell (Treg) content is associated with a low risk of GVHD following HLA-matched allogeneic SCT.

    Katayoun Rezvani;Stephan Mielke;Mojgan Ahmadzadeh;Yasemin Kilical

  • Leukemia-associated antigen-specific T-cell responses following combined PR1 and WT1 peptide vaccination in patients with myeloid malignancies.

    Katayoun Rezvani;Agnes S.M. Yong;Stephan Mielke;Bipin N. Savani

  • Hepatitis-Associated Aplastic Anemia

    K E Brown;J Tisdale;A J Barrett;C E Dunbar

  • Diagnostic utility of flow cytometric immunophenotyping in myelodysplastic syndrome

    Maryalice Stetler-Stevenson;Diane C. Arthur;Nicholas Jabbour;Xiu Y. Xie

  • HLA-DR15 (DR2) is overrepresented in myelodysplastic syndrome and aplastic anemia and predicts a response to immunosuppression in myelodysplastic syndrome.

    Yogen Saunthararajah;Ryotaro Nakamura;Jun Mo Nam;Jamie Robyn

  • Antithymocyte globulin for patients with myelodysplastic syndrome

    Jeffrey J. Molldrem;Mary Caples;Dimitrios Mavroudis;Michelle Plante

  • Functional leukemia-associated antigen-specific memory CD8+ T cells exist in healthy individuals and in patients with chronic myelogenous leukemia before and after stem cell transplantation.

    Katayoun Rezvani;Matthias Grube;Matthias Grube;Jason M. Brenchley;Jason M. Brenchley;Giuseppe Sconocchia;Giuseppe Sconocchia

  • Prospective Trial of Chemotherapy and Donor Leukocyte Infusions for Relapse of Advanced Myeloid Malignancies After Allogeneic Stem-Cell Transplantation

    John E. Levine;Thomas Braun;Samuel L. Penza;Patrick Beatty

  • Deficient CD4 + CD25 + FOXP3 + T regulatory cells in acquired aplastic anemia

    Elena E. Solomou;Katayoun Rezvani;Stephan Mielke;Daniela Malide

  • Improving the outcome of bone marrow transplantation by using CD52 monoclonal antibodies to prevent graft-versus-host disease and graft rejection.

    Geoff Hale;Mei-Jie Zhang;Donald Bunjes;H. Grant Prentice

  • Cytotoxic T Lymphocytes Specific for a Nonpolymorphic Proteinase 3 Peptide Preferentially Inhibit Chronic Myeloid Leukemia Colony-Forming Units

    Jeffrey J. Molldrem;Emmanuel Clave;Yin Zheng Jiang;Dimitrios Mavroudis

  • Antithymocyte Globulin for Treatment of the Bone Marrow Failure Associated with Myelodysplastic Syndromes

    Jeffrey J. Molldrem;Eric Leifer;Erkut Bahceci;Yogen Saunthararajah

  • Bone marrow transplants from HLA-identical siblings as compared with chemotherapy for children with acute lymphoblastic leukemia in a second remission

    A. John Barrett;Mary M. Horowitz;Bradley H Pollock;Mei Jie Zhang

  • Prospective evaluation of 2 acute graft-versus-host (GVHD) grading systems: a joint Société Française de Greffe de Moëlle et Thérapie Cellulaire (SFGM-TC), Dana Farber Cancer Institute (DFCI), and International Bone Marrow Transplant Registry (IBMTR) prospective study.

    Jean-Yves Cahn;John P. Klein;Stephanie J. Lee;Noël Milpied

Frequent Co-Authors

Bipin N. Savani
Bipin N. Savani Vanderbilt University Medical Center
J. Joseph Melenhorst
J. Joseph Melenhorst University of Pennsylvania
Richard Childs
Richard Childs National Institutes of Health
David Price
David Price University of Aberdeen
Neal S. Young
Neal S. Young National Institutes of Health
Daniel C. Douek
Daniel C. Douek National Institute of Allergy and Infectious Diseases
Susan F. Leitman
Susan F. Leitman National Institutes of Health
Emma Gostick
Emma Gostick Cardiff University
Catherine M. Bollard
Catherine M. Bollard George Washington University
David F. Stroncek
David F. Stroncek National Institutes of Health

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