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John J. O'Connor

D-Index & Metrics

Neuroscience

D-Index
39
Citations
6629
World Ranking
8301
National Ranking
31

John J. O'Connor publication distribution in Neuroscience in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Neuroscience in 2026. The highlighted bar marks where John J. O'Connor sits on this spectrum.

38–47 publications: 18 scientists 48–57 publications: 79 scientists 58–67 publications: 193 scientists 68–77 publications: 323 scientists 78–87 publications: 406 scientists 88–97 publications: 452 scientists 98–107 publications: 539 scientists 108–117 publications: 505 scientists 118–127 publications: 522 scientists 128–137 publications: 469 scientists 138–147 publications: 456 scientists 148–157 publications: 459 scientists 158–167 publications: 397 scientists 168–177 publications: 383 scientists 178–187 publications: 350 scientists 188–197 publications: 302 scientists 198–207 publications: 306 scientists 208–217 publications: 262 scientists 218–227 publications: 242 scientists 228–237 publications: 220 scientists 238–247 publications: 203 scientists 248–257 publications: 174 scientists 258–267 publications: 176 scientists 268–277 publications: 175 scientists 278–287 publications: 125 scientists 288–297 publications: 116 scientists 298–307 publications: 127 scientists 308–317 publications: 128 scientists 318–327 publications: 99 scientists 328–337 publications: 89 scientists 338–347 publications: 78 scientists 348–357 publications: 96 scientists 358–367 publications: 66 scientists 368–377 publications: 59 scientists 378–387 publications: 65 scientists 388–397 publications: 54 scientists 398–407 publications: 48 scientists 408–417 publications: 49 scientists 418–427 publications: 34 scientists 428–437 publications: 31 scientists 438–447 publications: 30 scientists 448–457 publications: 31 scientists 458–467 publications: 36 scientists 468–477 publications: 40 scientists 478–487 publications: 35 scientists 488–497 publications: 30 scientists 498–507 publications: 23 scientists 508–517 publications: 26 scientists 518–527 publications: 20 scientists 528–537 publications: 23 scientists 538–547 publications: 20 scientists 548–557 publications: 20 scientists 558–567 publications: 17 scientists 568–577 publications: 14 scientists 578–587 publications: 20 scientists 588–597 publications: 20 scientists 598–607 publications: 19 scientists 608–617 publications: 18 scientists 618–627 publications: 17 scientists 628–637 publications: 11 scientists 638–647 publications: 11 scientists 648–657 publications: 11 scientists 658–667 publications: 8 scientists 668–677 publications: 7 scientists 678–687 publications: 11 scientists 688–697 publications: 10 scientists 698–707 publications: 4 scientists 708–717 publications: 6 scientists 718–727 publications: 5 scientists 728–737 publications: 5 scientists 738–747 publications: 9 scientists 748–757 publications: 9 scientists 758–767 publications: 3 scientists 768–777 publications: 7 scientists 778–787 publications: 7 scientists 788–797 publications: 6 scientists 798–807 publications: 2 scientists 808–817 publications: 2 scientists 818–827 publications: 7 scientists 828–837 publications: 0 scientists 838–847 publications: 9 scientists 848–857 publications: 3 scientists 858–867 publications: 1 scientists 868–877 publications: 3 scientists 878–886 publications: 6 scientists 887+ publications: 100 scientists
38 publications 887+

This scientist: 122 publications — 29th percentile

29% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 887 publications or more.

John J. O'Connor D-index placement in Neuroscience in 2026

The chart shows the D-index (discipline H-index) distribution of Neuroscience scientists ranked by Research.com in 2026. The highlighted bar marks where John J. O'Connor sits on this spectrum.

30–31 D-Index: 42 scientists 32–33 D-Index: 172 scientists 34–35 D-Index: 296 scientists 36–37 D-Index: 435 scientists 38–39 D-Index: 459 scientists 40–41 D-Index: 456 scientists 42–43 D-Index: 467 scientists 44–45 D-Index: 478 scientists 46–47 D-Index: 512 scientists 48–49 D-Index: 435 scientists 50–51 D-Index: 425 scientists 52–53 D-Index: 418 scientists 54–55 D-Index: 392 scientists 56–57 D-Index: 357 scientists 58–59 D-Index: 334 scientists 60–61 D-Index: 328 scientists 62–63 D-Index: 260 scientists 64–65 D-Index: 278 scientists 66–67 D-Index: 239 scientists 68–69 D-Index: 250 scientists 70–71 D-Index: 210 scientists 72–73 D-Index: 200 scientists 74–75 D-Index: 189 scientists 76–77 D-Index: 170 scientists 78–79 D-Index: 146 scientists 80–81 D-Index: 113 scientists 82–83 D-Index: 126 scientists 84–85 D-Index: 100 scientists 86–87 D-Index: 84 scientists 88–89 D-Index: 99 scientists 90–91 D-Index: 84 scientists 92–93 D-Index: 85 scientists 94–95 D-Index: 72 scientists 96–97 D-Index: 76 scientists 98–99 D-Index: 45 scientists 100–101 D-Index: 49 scientists 102–103 D-Index: 43 scientists 104–105 D-Index: 32 scientists 106–107 D-Index: 45 scientists 108–109 D-Index: 50 scientists 110–111 D-Index: 32 scientists 112–113 D-Index: 39 scientists 114–115 D-Index: 32 scientists 116–117 D-Index: 29 scientists 118–119 D-Index: 27 scientists 120–121 D-Index: 19 scientists 122–123 D-Index: 23 scientists 124–125 D-Index: 27 scientists 126–127 D-Index: 16 scientists 128–129 D-Index: 24 scientists 130–131 D-Index: 13 scientists 132–133 D-Index: 21 scientists 134–135 D-Index: 17 scientists 136–137 D-Index: 14 scientists 138–139 D-Index: 15 scientists 140–141 D-Index: 10 scientists 142–143 D-Index: 10 scientists 144–145 D-Index: 13 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 8 scientists 150–151 D-Index: 6 scientists 152–153 D-Index: 6 scientists 154–155 D-Index: 7 scientists 156–157 D-Index: 7 scientists 158–159 D-Index: 10 scientists 160–161 D-Index: 4 scientists 162 D-Index: 8 scientists 163+ D-Index: 100 scientists
30 D-Index 163+

This scientist: 39 D-Index — 15th percentile

15% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 163 D-Index or more.

Overview

John J. O'Connor is affiliated with University College Dublin in Ireland. Their research spans multiple fields within medicine, with a focus on neurology, molecular biology, cancer research, biochemistry, and clinical psychology.

The scientist's main topics of work include:

  • Cancer, Hypoxia, and Metabolism
  • Neurological Disease Mechanisms and Treatments
  • Neuroscience and Neuropharmacology Research
  • Neuroinflammation and Neurodegeneration Mechanisms
  • Biochemical effects in animals
  • Vaccine Coverage and Hesitancy
  • Advanced X-ray and CT Imaging

Frequent co-authors in their research collaborations include Wiremu Woodard, Martina Puzio, Niamh Moreton, Marco Boeri, and Christine Poulos.

John J. O'Connor has published extensively in various scientific venues. The most frequent publication sources are:

  • Ata Journal of Psychotherapy Aotearoa New Zealand
  • Brain Research Bulletin
  • Brain Disorders
  • Transfusion and Apheresis Science
  • Antioxidants

Significant recent papers authored or co-authored by O'Connor include:

  • Neuroprotective strategies for acute ischemic stroke: Targeting oxidative stress and prolyl hydroxylase domain inhibition in synaptic signalling, 2022, Brain Disorders
  • Cold stored platelets - Increasing understanding and acceptance, 2023, Transfusion and Apheresis Science
  • An Electrophysiological and Proteomic Analysis of the Effects of the Superoxide Dismutase Mimetic, MnTMPyP, on Synaptic Signalling Post-Ischemia in Isolated Rat Hippocampal Slices, 2023, Antioxidants
  • The effects of prolyl hydroxylase inhibition during and post, hypoxia, oxygen glucose deprivation and oxidative stress, in isolated rat hippocampal slices, 2023, Brain Research Bulletin
  • The effects of the superoxide dismutase mimetic, MnTMPyP, post hypoxia and oxygen glucose deprivation in isolated rat hippocampal slices, 2022, Brain Research Bulletin

The scientist's work integrates biochemical and physiological processes related to oxidative stress, ischemia, hypoxia, and neuroprotection, often using animal models such as isolated rat hippocampal slices. Their cross-disciplinary focus includes neuroinflammation and mechanisms underlying neurological diseases, alongside studies on cancer metabolism and vaccine-related topics.

Best Publications

  • Interleukin-1β (IL-1β) and tumour necrosis factor (TNF) inhibit long-term potentiation in the rat dentate gyrus in vitro

    A.J. Cunningham;C.A. Murray;L.A.J. O'Neill;M.A. Lynch

  • Actions of TNF‐α on glutamatergic synaptic transmission in the central nervous system

    Mark Pickering;Derval Cumiskey;John J. O'Connor

  • Oxidative damage to mitochondrial DNA and activity of mitochondrial enzymes in chronic active lesions of multiple sclerosis

    Fengmin Lu;Mary Selak;John O’Connor;Sidney Croul

  • Plasma leptin is partly cleared by the kidney and is elevated in hemodialysis patients

    Kumar Sharma;Kumar Sharma;Robert V. Considine;Robert V. Considine;Beckie Michael;Beckie Michael;Stephen R. Dunn;Stephen R. Dunn

  • Dissection of tumor-necrosis factor-alpha inhibition of long-term potentiation (LTP) reveals a p38 mitogen-activated protein kinase-dependent mechanism which maps to early-but not late-phase LTP.

    Marion P. Butler;J.J. O'Connor;Paul N. Moynagh

  • Pro-inflammatory cytokines and their effects in the dentate gyrus.

    Mark Pickering;John J O'Connor

  • Long-lasting enhancement of NMDA receptor-mediated synaptic transmission by metabotropic glutamate receptor activation.

    John J. O'Connor;Michael J. Rowan;Roger Anwyl

  • Oxidative damage to DNA in plaques of MS brains.

    Olga Vladimirova;John O'Connor;Alan Cahill;Hansjuerg Alder

  • P42/44 MAP kinase inhibitor PD98059 attenuates multiple forms of synaptic plasticity in rat dentate gyrus in vitro

    Andrew N. Coogan;Deirdre M. O'Leary;John J. O'Connor

  • The Effects of Hypoxia and Inflammation on Synaptic Signaling in the CNS

    Gatambwa Mukandala;Ronan Tynan;Sinead Lanigan;John J. O’Connor

  • Tetanically induced LTP involves a similar increase in the AMPA and NMDA receptor components of the excitatory postsynaptic current: investigations of the involvement of mGlu receptors

    JJ O'Connor;MJ Rowan;R Anwyl

  • The pro-inflammatory cytokine interleukin-18 impairs long-term potentiation and NMDA receptor-mediated transmission in the rat hippocampus in vitro.

    B Curran;J.J O’Connor

  • The p38 mitogen-activated protein kinase inhibitor SB203580 antagonizes the inhibitory effects of interleukin-1β on long-term potentiation in the rat dentate gyrus in vitro

    A.N. Coogan;L.A.J. O'Neill;J.J. O'Connor

  • A role for c-jun n-terminal kinase in the inhibition of long-term potentiation by interleukin-1β and long-term depression in the rat dentate gyrus in vitro

    B.P Curran;H.J Murray;J.J O’Connor

  • Predominant cone photoreceptor dysfunction in a hyperglycaemic model of non-proliferative diabetic retinopathy.

    Yolanda Alvarez;Kenneth Chen;Alison L. Reynolds;Nora Waghorne

  • Inhibition of NMDA receptor-mediated synaptic transmission in the rat dentate gyrus in vitro by IL-1β

    Coogan A;O'Connor Jj

  • A role for tumor necrosis factor-α in ischemia and ischemic preconditioning.

    Orla Watters;John J O'Connor

  • Actions of the pro-inflammatory cytokine IL-1 beta on central synaptic transmission.

    John J. O'Connor;Andrew N. Coogan

  • Large scale screening of the mitochondrial DNA reveals no pathogenic mutations but a haplotype associated with multiple sclerosis in Caucasians

    B. Kalman;S. Li;D. Chatterjee;D. Chatterjee;J. O'Connor;J. O'Connor

  • CX3CL1 is up-regulated in the rat hippocampus during memory-associated synaptic plasticity.

    Graham K. Sheridan;Graham K. Sheridan;Anita Wdowicz;Mark Pickering;Orla Watters

  • Fast cyclic voltammetry can be used to measure stimulated endogenous 5-hydroxytryptamine release in untreated rat brain slices.

    J.J. O'Connor;Z.L. Kruk

Frequent Co-Authors

Roger Anwyl
Roger Anwyl Trinity College Dublin
Michael J. Rowan
Michael J. Rowan Trinity College Dublin
Michael Carey
Michael Carey University of California, Los Angeles
Zygmunt L. Kruk
Zygmunt L. Kruk University of Portsmouth
Andrew N. Coogan
Andrew N. Coogan National University of Ireland, Maynooth
Patricia Casey
Patricia Casey Mater Misericordiae University Hospital
Finian Martin
Finian Martin University College Dublin
Luke A. J. O'Neill
Luke A. J. O'Neill Trinity College Dublin
Hansjuerg Alder
Hansjuerg Alder The Ohio State University
Rose Anne Kenny
Rose Anne Kenny Trinity College Dublin

External Links

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Related Online Degrees & Career Pathways

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When considering the financial benefits of neuroscience and related fields, it’s worthwhile to review the best bachelor degrees to get for high-paying roles in health science, psychology, and biomedical research.

Best Scientists Citing John J. O'Connor

Marina A. Lynch

Marina A. Lynch

Trinity College Dublin

Publications: 41

Michael J. Rowan

Michael J. Rowan

Trinity College Dublin

Publications: 26

Roger Anwyl

Roger Anwyl

Trinity College Dublin

Publications: 25

Jonathan A. Stamford

Jonathan A. Stamford

Royal London Hospital

Publications: 23

Graham L. Collingridge

Graham L. Collingridge

Lunenfeld-Tanenbaum Research Institute

Publications: 21

Hans Lassmann

Hans Lassmann

Medical University of Vienna

Publications: 19

Diego Centonze

Diego Centonze

University of Rome Tor Vergata

Publications: 18

Annamaria Vezzani

Annamaria Vezzani

Mario Negri Institute for Pharmacological Research

Publications: 17

Steven F. Maier

Steven F. Maier

University of Colorado Boulder

Publications: 16

Ian A. Clark

Ian A. Clark

Australian National University

Publications: 15

Linda R. Watkins

Linda R. Watkins

University of Colorado Boulder

Publications: 15

Mark P. Mattson

Mark P. Mattson

Johns Hopkins University

Publications: 14

Bernhard T. Baune

Bernhard T. Baune

University of Münster

Publications: 13

Zygmunt L. Kruk

Zygmunt L. Kruk

University of Portsmouth

Publications: 13

J. David Sweatt

J. David Sweatt

University of Alabama at Birmingham

Publications: 13

Paul Willner

Paul Willner

Swansea University

Publications: 13

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