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Janina Ratajczak

D-Index & Metrics

Biology and Biochemistry

D-Index
85
Citations
28802
World Ranking
3123
National Ranking
1580

Medicine

D-Index
85
Citations
28803
World Ranking
14530
National Ranking
7351

Janina Ratajczak publication distribution in Biology and Biochemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Biology and Biochemistry in 2026. The highlighted bar marks where Janina Ratajczak sits on this spectrum.

47–56 publications: 8 scientists 57–66 publications: 35 scientists 67–76 publications: 106 scientists 77–86 publications: 231 scientists 87–96 publications: 414 scientists 97–106 publications: 546 scientists 107–116 publications: 704 scientists 117–126 publications: 849 scientists 127–136 publications: 980 scientists 137–146 publications: 942 scientists 147–156 publications: 969 scientists 157–166 publications: 950 scientists 167–176 publications: 951 scientists 177–186 publications: 915 scientists 187–196 publications: 787 scientists 197–206 publications: 841 scientists 207–216 publications: 735 scientists 217–226 publications: 709 scientists 227–236 publications: 651 scientists 237–246 publications: 605 scientists 247–256 publications: 510 scientists 257–266 publications: 524 scientists 267–276 publications: 434 scientists 277–286 publications: 418 scientists 287–296 publications: 350 scientists 297–306 publications: 363 scientists 307–316 publications: 315 scientists 317–326 publications: 296 scientists 327–336 publications: 261 scientists 337–346 publications: 240 scientists 347–356 publications: 219 scientists 357–366 publications: 197 scientists 367–376 publications: 154 scientists 377–386 publications: 161 scientists 387–396 publications: 155 scientists 397–406 publications: 145 scientists 407–416 publications: 124 scientists 417–426 publications: 112 scientists 427–436 publications: 132 scientists 437–446 publications: 116 scientists 447–456 publications: 99 scientists 457–466 publications: 81 scientists 467–476 publications: 91 scientists 477–486 publications: 80 scientists 487–496 publications: 80 scientists 497–506 publications: 60 scientists 507–516 publications: 36 scientists 517–526 publications: 46 scientists 527–536 publications: 54 scientists 537–546 publications: 44 scientists 547–556 publications: 43 scientists 557–566 publications: 43 scientists 567–576 publications: 42 scientists 577–586 publications: 25 scientists 587–596 publications: 34 scientists 597–606 publications: 23 scientists 607–616 publications: 33 scientists 617–626 publications: 31 scientists 627–636 publications: 27 scientists 637–646 publications: 25 scientists 647–656 publications: 28 scientists 657–666 publications: 34 scientists 667–676 publications: 18 scientists 677–686 publications: 16 scientists 687–696 publications: 10 scientists 697–706 publications: 12 scientists 707–716 publications: 21 scientists 717–726 publications: 12 scientists 727–736 publications: 12 scientists 737–746 publications: 10 scientists 747–756 publications: 7 scientists 757–766 publications: 13 scientists 767–776 publications: 15 scientists 777–786 publications: 13 scientists 787–796 publications: 9 scientists 797–806 publications: 9 scientists 807–816 publications: 7 scientists 817–826 publications: 4 scientists 827–836 publications: 9 scientists 837–846 publications: 7 scientists 847–856 publications: 3 scientists 857–866 publications: 5 scientists 867–876 publications: 5 scientists 877–886 publications: 11 scientists 887–896 publications: 3 scientists 897–906 publications: 4 scientists 907–916 publications: 7 scientists 917–926 publications: 5 scientists 927–936 publications: 6 scientists 937–946 publications: 6 scientists 947–956 publications: 3 scientists 957–966 publications: 7 scientists 967–976 publications: 2 scientists 977–986 publications: 2 scientists 987–996 publications: 1 scientists 997–1,006 publications: 5 scientists 1,007–1,016 publications: 2 scientists 1,017–1,026 publications: 2 scientists 1,027 publications: 1 scientists 1,028+ publications: 100 scientists
47 publications 1,028+

This scientist: 333 publications — 83rd percentile

83% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,028 publications or more.

Janina Ratajczak D-index placement in Biology and Biochemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Biology and Biochemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Janina Ratajczak sits on this spectrum.

40–41 D-Index: 80 scientists 42–43 D-Index: 183 scientists 44–45 D-Index: 317 scientists 46–47 D-Index: 504 scientists 48–49 D-Index: 718 scientists 50–51 D-Index: 900 scientists 52–53 D-Index: 1,026 scientists 54–55 D-Index: 1,150 scientists 56–57 D-Index: 1,236 scientists 58–59 D-Index: 1,253 scientists 60–61 D-Index: 1,163 scientists 62–63 D-Index: 1,131 scientists 64–65 D-Index: 1,032 scientists 66–67 D-Index: 897 scientists 68–69 D-Index: 814 scientists 70–71 D-Index: 715 scientists 72–73 D-Index: 709 scientists 74–75 D-Index: 596 scientists 76–77 D-Index: 512 scientists 78–79 D-Index: 473 scientists 80–81 D-Index: 412 scientists 82–83 D-Index: 373 scientists 84–85 D-Index: 358 scientists 86–87 D-Index: 285 scientists 88–89 D-Index: 273 scientists 90–91 D-Index: 227 scientists 92–93 D-Index: 208 scientists 94–95 D-Index: 193 scientists 96–97 D-Index: 153 scientists 98–99 D-Index: 157 scientists 100–101 D-Index: 148 scientists 102–103 D-Index: 120 scientists 104–105 D-Index: 113 scientists 106–107 D-Index: 100 scientists 108–109 D-Index: 86 scientists 110–111 D-Index: 67 scientists 112–113 D-Index: 72 scientists 114–115 D-Index: 73 scientists 116–117 D-Index: 64 scientists 118–119 D-Index: 53 scientists 120–121 D-Index: 60 scientists 122–123 D-Index: 54 scientists 124–125 D-Index: 43 scientists 126–127 D-Index: 38 scientists 128–129 D-Index: 49 scientists 130–131 D-Index: 26 scientists 132–133 D-Index: 18 scientists 134–135 D-Index: 23 scientists 136–137 D-Index: 32 scientists 138–139 D-Index: 32 scientists 140–141 D-Index: 27 scientists 142–143 D-Index: 19 scientists 144–145 D-Index: 22 scientists 146–147 D-Index: 12 scientists 148–149 D-Index: 16 scientists 150–151 D-Index: 14 scientists 152–153 D-Index: 10 scientists 154–155 D-Index: 13 scientists 156–157 D-Index: 10 scientists 158–159 D-Index: 7 scientists 160–161 D-Index: 9 scientists 162–163 D-Index: 13 scientists 164–165 D-Index: 4 scientists 166 D-Index: 4 scientists 167+ D-Index: 98 scientists
40 D-Index 167+

This scientist: 85 D-Index — 84th percentile

84% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 167 D-Index or more.

Overview

Janina Ratajczak is affiliated with the University of Louisville in the United States. Their research spans multiple fields, including biochemistry, genetics and molecular biology, medicine, and immunology and microbiology. The scientist's work also covers specialized subfields such as molecular biology, immunology, physiology, hematology, and pulmonary and respiratory medicine.

The main topics of Janina Ratajczak's research focus on inflammasome and immune disorders, hematopoietic stem cell transplantation, adenosine and purinergic signaling, the complement system in diseases, neonatal respiratory health research, immune cell function and interaction, and immune response and inflammation.

Frequent coauthors collaborating with Janina Ratajczak include:

  • Mariusz Z. Ratajczak
  • Magda Kucia
  • Kamila Bujko
  • Mateusz Adamiak
  • Arjun Thapa

Publications by Janina Ratajczak appear regularly in prominent scientific venues. The most common publication venues include:

  • Stem Cell Reviews and Reports
  • Blood
  • Leukemia
  • Purinergic Signalling
  • Frontiers in Bioengineering and Biotechnology

Examples of recent papers by Janina Ratajczak include:

  • "Extracellular microvesicles/exosomes: discovery, disbelief, acceptance, and the future?" (2020, Leukemia)
  • "The Nlrp3 inflammasome as a "rising star" in studies of normal and malignant hematopoiesis" (2020, Leukemia)
  • "An evidence that SARS-Cov-2/COVID-19 spike protein (SP) damages hematopoietic stem/progenitor cells in the mechanism of pyroptosis in Nlrp3 inflammasome-dependent manner" (2021, Leukemia)
  • "Nlrp3 Inflammasome Signaling Regulates the Homing and Engraftment of Hematopoietic Stem Cells (HSPCs) by Enhancing Incorporation of CXCR4 Receptor into Membrane Lipid Rafts" (2020, Stem Cell Reviews and Reports)
  • "Innate Immunity Communicates Using the Language of Extracellular Microvesicles" (2021, Stem Cell Reviews and Reports)

Best Publications

  • Embryonic stem cell-derived microvesicles reprogram hematopoietic progenitors: evidence for horizontal transfer of mRNA and protein delivery.

    J Ratajczak;K Miekus;M Kucia;J Zhang

  • Membrane-derived microvesicles: important and underappreciated mediators of cell-to-cell communication.

    J Ratajczak;M Wysoczynski;F Hayek;A Janowska-Wieczorek

  • Haploinsufficiency of CBFA2 causes familial thrombocytopenia with propensity to develop acute myelogenous leukaemia

    W.-J. Song;M. G. Sullivan;R. D. Legare;S. Hutchings

  • A population of very small embryonic-like (VSEL) CXCR4 + SSEA-1 + Oct-4 + stem cells identified in adult bone marrow

    M Kucia;R Reca;F R Campbell;E Zuba-Surma

  • Trafficking of Normal Stem Cells and Metastasis of Cancer Stem Cells Involve Similar Mechanisms: Pivotal Role of the SDF-1–CXCR4 Axis

    Magda Kucia;Ryan Reca;Katarzyna Miekus;Jens Wanzeck

  • CXCR4-SDF-1 signalling, locomotion, chemotaxis and adhesion.

    Magda Kucia;Kacper Jankowski;Ryan Reca;Marcin Wysoczynski

  • Migration of bone marrow and cord blood mesenchymal stem cells in vitro is regulated by stromal-derived factor-1-CXCR4 and hepatocyte growth factor-c-met axes and involves matrix metalloproteinases.

    Bo‐Ra Son;Leah A. Marquez‐Curtis;Magda Kucia;Marcin Wysoczynski

  • Microvesicles derived from activated platelets induce metastasis and angiogenesis in lung cancer.

    Anna Janowska-Wieczorek;Marcin Wysoczynski;Marcin Wysoczynski;Jacek Kijowski;Jacek Kijowski;Leah Marquez-Curtis;Leah Marquez-Curtis

  • Numerous growth factors, cytokines, and chemokines are secreted by human CD34(+) cells, myeloblasts, erythroblasts, and megakaryoblasts and regulate normal hematopoiesis in an autocrine/paracrine manner.

    Marcin Majka;Marcin Majka;Anna Janowska-Wieczorek;Anna Janowska-Wieczorek;Janina Ratajczak;Janina Ratajczak;Karen Ehrenman;Karen Ehrenman

  • The pleiotropic effects of the SDF-1-CXCR4 axis in organogenesis, regeneration and tumorigenesis.

    Mariusz Z Ratajczak;Ewa Zuba-Surma;Magda Kucia;Ryan Reca

  • Cells Expressing Early Cardiac Markers Reside in the Bone Marrow and Are Mobilized Into the Peripheral Blood After Myocardial Infarction

    Magda Kucia;Buddhadeb Dawn;Greg Hunt;Yiru Guo

  • Stem cell plasticity revisited: CXCR4-positive cells expressing mRNA for early muscle, liver and neural cells ‘hide out’ in the bone marrow

    M Z Ratajczak;M Kucia;M Kucia;R Reca;M Majka

  • Platelet-derived microparticles bind to hematopoietic stem/progenitor cells and enhance their engraftment

    Anna Janowska-Wieczorek;Marcin Majka;Jacek Kijowski;Monika Baj-Krzyworzeka

  • Platelet-derived microparticles stimulate proliferation, survival, adhesion, and chemotaxis of hematopoietic cells.

    Monika Baj-Krzyworzeka;Marcin Majka;Domenico Pratico;Janina Ratajczak

  • Pivotal role of paracrine effects in stem cell therapies in regenerative medicine: can we translate stem cell-secreted paracrine factors and microvesicles into better therapeutic strategies?

    M Z Ratajczak;M Kucia;T Jadczyk;N J Greco

  • Platelet- and megakaryocyte-derived microparticles transfer CXCR4 receptor to CXCR4-null cells and make them susceptible to infection by X4-HIV.

    Tomasz Rozmyslowicz;Marcin Majka;Jacek Kijowski;Samuel L Murphy

  • Tissue-specific muscle, neural and liver stem/progenitor cells reside in the bone marrow, respond to an SDF-1 gradient and are mobilized into peripheral blood during stress and tissue injury

    Magda Kucia;Janina Ratajczak;Janina Ratajczak;Ryan Reca;Ryan Reca;Anna Janowska-Wieczorek;Anna Janowska-Wieczorek

  • Novel insight into stem cell mobilization-Plasma sphingosine-1-phosphate is a major chemoattractant that directs the egress of hematopoietic stem progenitor cells from the bone marrow and its level in peripheral blood increases during mobilization due to activation of complement cascade/membrane attack complex

    Mariusz Z. Ratajczak;HakMo Lee;Marcin Wysoczynski;Wu Wan

  • Incorporation of CXCR4 into membrane lipid rafts primes homing-related responses of hematopoietic stem/progenitor cells to an SDF-1 gradient.

    Marcin Wysoczynski;Ryan Reca;Janina Ratajczak;Magda Kucia

  • A hypothesis for an embryonic origin of pluripotent Oct-4+ stem cells in adult bone marrow and other tissues

    M Z Ratajczak;B Machalinski;W Wojakowski;J Ratajczak

Frequent Co-Authors

Mariusz Z. Ratajczak
Mariusz Z. Ratajczak University of Louisville
Magda Kucia
Magda Kucia Medical University of Warsaw
Ewa K. Zuba-Surma
Ewa K. Zuba-Surma Jagiellonian University
Anna Janowska-Wieczorek
Anna Janowska-Wieczorek University of Alberta
Marcin Majka
Marcin Majka Jagiellonian University
Alan M. Gewirtz
Alan M. Gewirtz University of Pennsylvania
Mortimer Poncz
Mortimer Poncz Children's Hospital of Philadelphia
Suzanne T. Ildstad
Suzanne T. Ildstad University of Louisville
Roberto Bolli
Roberto Bolli University of Louisville
Andrew J. Morris
Andrew J. Morris University of Kentucky

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Best Scientists Citing Janina Ratajczak

Mariusz Z. Ratajczak

Mariusz Z. Ratajczak

University of Louisville

Publications: 220

Giovanni Camussi

Giovanni Camussi

University of Turin

Publications: 88

Maria Chiara Deregibus

Maria Chiara Deregibus

University of Turin

Publications: 48

Anna Janowska-Wieczorek

Anna Janowska-Wieczorek

University of Alberta

Publications: 45

Ewa K. Zuba-Surma

Ewa K. Zuba-Surma

Jagiellonian University

Publications: 44

Marcin Majka

Marcin Majka

Jagiellonian University

Publications: 42

Magda Kucia

Magda Kucia

Medical University of Warsaw

Publications: 42

Ciro Tetta

Ciro Tetta

Fresenius Medical Care (Germany)

Publications: 40

Stefania Bruno

Stefania Bruno

University of Turin

Publications: 38

Peter J. Quesenberry

Peter J. Quesenberry

Brown University

Publications: 34

Mortimer Poncz

Mortimer Poncz

Children's Hospital of Philadelphia

Publications: 33

Catherine M. Verfaillie

Catherine M. Verfaillie

KU Leuven

Publications: 31

Motomi Osato

Motomi Osato

National University of Singapore

Publications: 30

Tsvee Lapidot

Tsvee Lapidot

Weizmann Institute of Science

Publications: 28

Christian Weber

Christian Weber

Ludwig-Maximilians-Universität München

Publications: 27

Antonin de Fougerolles

Antonin de Fougerolles

Alnylam Pharmaceuticals (United States)

Publications: 26

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