World's Best Scientists 2026 revealed!

D-Index & Metrics

Neuroscience

D-Index
54
Citations
9867
World Ranking
4941
National Ranking
2216

Paula Grammas 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 Paula Grammas 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: 158 publications — 46th percentile

46% of scientists in this discipline score the same or lower.

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

Paula Grammas 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 Paula Grammas 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: 54 D-Index — 50th percentile

50% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2017 - Fellow of the American Association for the Advancement of Science (AAAS)

Overview

Paula Grammas is affiliated with the University of Rhode Island in the United States. Their research primarily focuses on the intersections of medicine and neuroscience, with an emphasis on physiology, neurology, hematology, cardiology, cardiovascular medicine, and molecular biology.

The main topics covered in Grammas's work include:

  • Alzheimer's disease research and treatments
  • Blood coagulation and thrombosis mechanisms
  • Neuroinflammation and neurodegeneration mechanisms
  • Coagulation, bradykinin, polyphosphates, and angioedema
  • Renin-angiotensin system studies
  • Cholesterol and lipid metabolism
  • Acute ischemic stroke management

Frequent co-authors in their publications include:

  • Jaclyn Iannucci
  • Abhik Sen
  • Shelby L. Johnson
  • Navindra P. Seeram
  • Haripriya Vittal Rao

Grammas has contributed research to several publication venues, including:

  • Frontiers in Neuroscience
  • Current Issues in Molecular Biology
  • Cells
  • Plant Foods for Human Nutrition
  • International Journal of Molecular Sciences

Selected papers authored or co-authored by Grammas include:

  • "Thrombin, a Mediator of Coagulation, Inflammation, and Neurotoxicity at the Neurovascular Interface: Implications for Alzheimer's Disease" (2020), Frontiers in Neuroscience
  • "Isoform-Specific Effects of Apolipoprotein E on Markers of Inflammation and Toxicity in Brain Glia and Neuronal Cells In Vitro" (2021), Current Issues in Molecular Biology
  • "Equol, a Blood-Brain Barrier Permeable Gut Microbial Metabolite of Dietary Isoflavone Daidzein, Exhibits Neuroprotective Effects against Neurotoxins Induced Toxicity in Human Neuroblastoma SH-SY5Y Cells and Caenorhabditis elegans" (2020), Plant Foods for Human Nutrition
  • "Thrombin, a Key Driver of Pathological Inflammation in the Brain" (2023), Cells
  • "Sex Differences in Metabolic Indices and Chronic Neuroinflammation in Response to Prolonged High-Fat Diet in ApoE4 Knock-In Mice" (2022), International Journal of Molecular Sciences

Grammas's research output demonstrates a consistent focus on mechanisms linking coagulation, neuroinflammation, and neurodegenerative diseases such as Alzheimer's disease.

In 2017, they were recognized as a Fellow of the American Association for the Advancement of Science (AAAS).

Best Publications

  • Strategies to advance translational research into brain barriers

    Edward Neuwelt;N Joan Abbott;Lauren Abrey;William A Banks

  • Neurovascular dysfunction, inflammation and endothelial activation: implications for the pathogenesis of Alzheimer's disease.

    Paula Grammas

  • Inflammatory factors are elevated in brain microvessels in Alzheimer’s disease

    Paula Grammas;Roma Ovase

  • Nitric Oxide Synthase Activity Is Elevated in Brain Microvessels in Alzheimer′s Disease

    M.A. Dorheim;W.R. Tracey;J.S. Pollock;P. Grammas

  • Message and protein-level elevation of tumor necrosis factor α (TNFα) and TNFα-modulating cytokines in spinal cords of the G93A-SOD1 mouse model for amyotrophic lateral sclerosis

    Kenneth Hensley;Joe Fedynyshyn;Scott Ferrell;Robert A Floyd;Robert A Floyd

  • Blood-based biomarkers in Alzheimer disease: Current state of the science and a novel collaborative paradigm for advancing from discovery to clinic.

    Sid E. O'Bryant;Michelle M. Mielke;Robert A. Rissman;Simone Lista;Simone Lista

  • Guidelines for the standardization of preanalytic variables for blood-based biomarker studies in Alzheimer's disease research

    Sid E. O'Bryant;Veer Gupta;Kim Henriksen;Melissa Edwards

  • Thrombin and inflammatory proteins are elevated in Alzheimer's disease microvessels: Implications for disease pathogenesis

    Paula Grammas;Pezhman Ghatreh Samany;Lakshmi Thirumangalakudi

  • Cerebral microvascular endothelium and the pathogenesis of neurodegenerative diseases.

    Paula Grammas;Joseph Martinez;Bradley Miller

  • HIV-1 gp120 proteins alter tight junction protein expression and brain endothelial cell permeability: implications for the pathogenesis of HIV-associated dementia.

    Georgette D. Kanmogne;Charles Primeaux;Paula Grammas

  • RANTES upregulation in the Alzheimer's disease brain: A possible neuroprotective role

    Debjani Tripathy;Lakshmi Thirumangalakudi;Paula Grammas

  • Cerebrovascular Transforming Growth Factor-β Contributes to Inflammation in the Alzheimer’s Disease Brain

    Paula Grammas;Roma Ovase

  • The nitration product 5-nitro-gamma-tocopherol is increased in the Alzheimer brain.

    Kelly S. Williamson;S. Prasad Gabbita;Shenyun Mou;Melinda West

  • The arachidonic acid 5-lipoxygenase inhibitor nordihydroguaiaretic acid inhibits tumor necrosis factor alpha activation of microglia and extends survival of G93A-SOD1 transgenic mice.

    Melinda West;Molina Mhatre;Alex Ceballos;Robert A. Floyd

  • Angiogenic proteins are expressed by brain blood vessels in Alzheimer's disease.

    Lakshmi Thirumangalakudi;Pezhman Ghatreh Samany;Akinkunle Owoso;Brandt Wiskar

  • Thrombin, a mediator of neurotoxicity and memory impairment

    Molina Mhatre;Albert Nguyen;Shabnam Kashani;Tracy Pham

  • Brain Endothelial Cells Synthesize Neurotoxic Thrombin in Alzheimer’s Disease

    Xiangling Yin;Jill Wright;Trevor Wall;Paula Grammas

  • Mechanisms of cell death in primary cortical neurons and PC12 cells.

    Ulrich Reimann-Philipp;Roma Ovase;Paul H. Weigel;Paula Grammas

  • Microvessels from Alzheimer’s Disease Brains Kill Neurons in Vitro

    Paula Grammas;Pete Moore;Paul H. Weigel

  • Acetaminophen inhibits neuronal inflammation and protects neurons from oxidative stress.

    Debjani Tripathy;Paula Grammas

  • A damaged microcirculation contributes to neuronal cell death in Alzheimer’s disease☆

    Paula Grammas

  • Thrombin, a mediator of cerebrovascular inflammation in AD and hypoxia

    Debjani Tripathy;Alma Sanchez;Xiangling Yin;Jinhua Luo

Frequent Co-Authors

Kenneth Hensley
Kenneth Hensley University of Toledo
Robert A. Floyd
Robert A. Floyd Oklahoma Medical Research Foundation
Harald Hampel
Harald Hampel Eisai (United States)
Paul H. Weigel
Paul H. Weigel University of Oklahoma Health Sciences Center
Suzanne M. de la Monte
Suzanne M. de la Monte Brown University
Monique M.B. Breteler
Monique M.B. Breteler German Center for Neurodegenerative Diseases
Douglas M. Stocco
Douglas M. Stocco Texas Tech University Health Sciences Center
Robert A. Rissman
Robert A. Rissman University of California, San Diego
Leslie M. Shaw
Leslie M. Shaw University of Pennsylvania
John Q. Trojanowski
John Q. Trojanowski University of Pennsylvania

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