World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
78
Citations
43531
World Ranking
17793
National Ranking
8879

Gregory A. Jicha 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 Gregory A. Jicha 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: 434 publications — 46th percentile

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

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

Gregory A. Jicha 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 Gregory A. Jicha 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: 78 D-Index — 12th percentile

12% of scientists in this discipline score the same or lower.

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

Overview

Gregory A. Jicha is affiliated with the University of Kentucky in the United States and has a substantial body of research within the field of Medicine. Their work covers several subfields including Psychiatry and Mental Health, Neurology, Physiology, Cognitive Neuroscience, and Public Health, Environmental and Occupational Health.

The main topics of their research focus on dementia and cognitive impairment, Alzheimer's disease research and treatments, neurological disease mechanisms and treatments, cerebrovascular and carotid artery diseases, health systems including economic evaluations and quality of life, functional brain connectivity studies, and frailty in older adults.

The scientist's recent published papers include the following:

  • Prevalence and Clinical Phenotype of Quadruple Misfolded Proteins in Older Adults, 2020, JAMA Neurology
  • Brain arteriolosclerosis, 2020, Acta Neuropathologica
  • MarkVCID cerebral small vessel consortium: I. Enrollment, clinical, fluid protocols, 2021, Alzheimer's & Dementia
  • Limbic-predominant age-related TDP-43 encephalopathy differs from frontotemporal lobar degeneration, 2020, Brain
  • Water exchange rate across the blood-brain barrier is associated with CSF amyloid-β 42 in healthy older adults, 2021, Alzheimer's & Dementia

Frequent co-authors collaborating with them include:

  • Erin L. Abner
  • Donna M. Wilcock
  • Peter T. Nelson
  • Justin M. Barber
  • Brian T. Gold

Their research is published predominantly in the following venues:

  • Alzheimer's & Dementia
  • Innovation in Aging
  • Neurology
  • Journal of Alzheimer's Disease
  • Alzheimer's & Dementia Translational Research & Clinical Interventions

Best Publications

  • Research criteria for the diagnosis of Alzheimer's disease: revising the NINCDS–ADRDA criteria

    Bruno Dubois;Howard H. Feldman;Claudia Jacova;Steven T. DeKosky

  • Advancing research diagnostic criteria for Alzheimer's disease: the IWG-2 criteria

    Bruno Dubois;Bruno Dubois;Howard H Feldman;Claudia Jacova;Harald Hampel;Harald Hampel

  • Revising the definition of Alzheimer's disease: a new lexicon.

    Bruno Dubois;Howard H. Feldman;Howard H. Feldman;Howard H. Feldman;Claudia Jacova;Jeffrey L. Cummings

  • Correlation of Alzheimer Disease Neuropathologic Changes With Cognitive Status: A Review of the Literature

    Peter T Nelson;Irina Alafuzoff;Eileen H Bigio;Constantin Bouras

  • Common variants at MS4A4/MS4A6E, CD2AP, CD33 and EPHA1 are associated with late-onset Alzheimer's disease.

    Adam C. Naj;Gyungah Jun;Gary W. Beecham;Li-San Wang

  • Analysis of shared heritability in common disorders of the brain

    Verneri Anttila;Verneri Anttila;Brendan Bulik-Sullivan;Brendan Bulik-Sullivan;Hilary K. Finucane;Raymond K. Walters;Raymond K. Walters

  • Primary age-related tauopathy (PART): a common pathology associated with human aging

    John F. Crary;John Q. Trojanowski;Julie A. Schneider;Jose F. Abisambra

  • Limbic-predominant age-related TDP-43 encephalopathy (LATE): consensus working group report.

    Peter T. Nelson;Dennis W. Dickson;John Q. Trojanowski;Clifford R. Jack

  • Neuropathologic features of amnestic mild cognitive impairment.

    Ronald C. Petersen;Joseph E. Parisi;Dennis W. Dickson;Kris A. Johnson

  • A randomized, double-blind, placebo-controlled trial of resveratrol for Alzheimer disease

    R. Scott Turner;Ronald G. Thomas;Suzanne Craft;Christopher H. van Dyck

  • Alz-50 and MC-1, a new monoclonal antibody raised to paired helical filaments, recognize conformational epitopes on recombinant tau.

    Gregory A. Jicha;Robert Bowser;Imrana G. Kazam;Peter Davies

  • Aberrant Expression of Mitotic Cdc2/Cyclin B1 Kinase in Degenerating Neurons of Alzheimer’s Disease Brain

    Inez Vincent;Gregory Jicha;Michelle Rosado;Dennis W. Dickson

  • Neuropathological and Genetic Correlates of Survival and Dementia Onset in Synucleinopathies: A Retrospective Analysis

    David J Irwin;Murray Grossman;Daniel Weintraub;Daniel Weintraub;Howard I Hurtig

  • Aging-related tau astrogliopathy (ARTAG): harmonized evaluation strategy

    Gabor G. Kovacs;Isidro Ferrer;Lea T. Grinberg;Lea T. Grinberg;Irina Alafuzoff

  • Neuropathologic outcome of mild cognitive impairment following progression to clinical dementia.

    Gregory A. Jicha;Joseph E. Parisi;Dennis W. Dickson;Kris Johnson

  • Serum antibodies to periodontal pathogens are a risk factor for Alzheimer’s disease

    Pamela Sparks Stein;Michelle J. Steffen;Charles Smith;Gregory Jicha

  • APOE ε4 increases risk for dementia in pure synucleinopathies.

    Debby Tsuang;James B. Leverenz;Oscar L. Lopez;Ronald L. Hamilton

  • Alzheimer’s disease is not “brain aging”: neuropathological, genetic, and epidemiological human studies

    Peter T. Nelson;Elizabeth Head;Frederick A. Schmitt;Paulina R. Davis

  • Antioxidants for Alzheimer Disease: A Randomized Clinical Trial With Cerebrospinal Fluid Biomarker Measures

    Douglas R. Galasko;Elaine Peskind;Christopher M. Clark;Joseph F. Quinn

  • Common genetic variants in the CLDN2 and PRSS1-PRSS2 loci alter risk for alcohol-related and sporadic pancreatitis

    David C. Whitcomb;Jessica LaRusch;Alyssa M. Krasinskas;Lambertus Klei

Frequent Co-Authors

Peter T. Nelson
Peter T. Nelson University of Kentucky
Frederick A. Schmitt
Frederick A. Schmitt University of Kentucky
Charles D. Smith
Charles D. Smith University of Kentucky
Richard J. Kryscio
Richard J. Kryscio University of Kentucky
Linda J. Van Eldik
Linda J. Van Eldik University of Kentucky
John Q. Trojanowski
John Q. Trojanowski University of Pennsylvania
Walter A. Kukull
Walter A. Kukull Washington University in St. Louis
Julie A. Schneider
Julie A. Schneider Rush University Medical Center
Thomas J. Montine
Thomas J. Montine Stanford University

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