World's Best Scientists 2026 revealed!

D-Index & Metrics

Medicine

D-Index
99
Citations
37620
World Ranking
8570
National Ranking
4413

Ronald J. Ellis 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 Ronald J. Ellis 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: 454 publications — 50th percentile

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

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

Ronald J. Ellis 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 Ronald J. Ellis 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: 99 D-Index — 58th percentile

58% of scientists in this discipline score the same or lower.

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

Overview

Ronald J. Ellis is affiliated with the University of California, San Diego in the United States. Their research primarily focuses on medicine and immunology and microbiology, with significant contributions to subfields such as virology, infectious diseases, emergency medicine, immunology, and neurology.

Their work extensively explores topics related to HIV research and treatment, addressing HIV-related health complications and treatments, and broader HIV/AIDS research and interventions. Additional research interests include tryptophan and brain disorders, neuroinflammation and neurodegeneration mechanisms, cannabis and cannabinoid research, and immunotherapy and immune responses.

Recent papers authored by Ronald J. Ellis include:

  • Recent cannabis use in HIV is associated with reduced inflammatory markers in CSF and blood, 2020, Neurology Neuroimmunology & Neuroinflammation
  • Mechanisms underlying HIV-associated cognitive impairment and emerging therapies for its management, 2023, Nature Reviews Neurology

Ronald J. Ellis collaborates frequently with several co-authors, including Scott Letendre, Jennifer E. Iudicello, David J. Moore, Robert K. Heaton, and Igor Grant. These collaborations reflect a network of researchers active in overlapping fields related to HIV and neurology.

Publication venues where Ronald J. Ellis has contributed multiple works include:

  • Human Vaccines & Immunotherapeutics
  • Viruses
  • Journal of NeuroVirology
  • Neurology
  • Journal of the International Neuropsychological Society

Best Publications

  • HIV-associated neurocognitive disorders persist in the era of potent antiretroviral therapy: CHARTER Study.

    R. K. Heaton;D. B. Clifford;D. R. Franklin;S. P. Woods

  • HIV-associated neurocognitive disorders before and during the era of combination antiretroviral therapy: differences in rates, nature, and predictors

    Robert K. Heaton;Donald R. Franklin;Ronald J. Ellis;J. Allen McCutchan

  • Validation of the CNS Penetration-Effectiveness rank for quantifying antiretroviral penetration into the central nervous system.

    Scott Letendre;Jennifer Marquie-Beck;Edmund Capparelli;Brookie Best

  • The HNRC 500-Neuropsychology of Hiv infection at different disease stages

    Robert K. Heaton;Igor Grant;Nelson Butters;Desirée A. White

  • The prevalence and incidence of neurocognitive impairment in the HAART era.

    Kevin R. Robertson;Marlene Smurzynski;Thomas D. Parsons;Kunling Wu

  • Dendritic injury is a pathological substrate for human immunodeficiency virus-related cognitive disorders. HNRC Group. The HIV Neurobehavioral Research Center.

    E Masliah;R K Heaton;T D Marcotte;R J Ellis

  • Cerebral amyloid angiopathy in the brains of patients with Alzheimer's disease The CERAD experience, part XV

    R. J. Ellis;John M Olichney;L. J. Thal;S. S. Mirra

  • Smoked medicinal cannabis for neuropathic pain in HIV: a randomized, crossover clinical trial.

    Ronald J Ellis;Will Toperoff;Florin Vaida;Geoffrey van den Brande

  • HIV and antiretroviral therapy in the brain: neuronal injury and repair.

    Ronald Ellis;Dianne Langford;Eliezer Masliah

  • CD4 nadir is a predictor of HIV neurocognitive impairment in the era of combination antiretroviral therapy.

    Ronald J. Ellis;Jayraan Badiee;Florin Vaida;Scott Letendre

  • Neurocognitive Change in the Era of HIV Combination Antiretroviral Therapy: The Longitudinal CHARTER Study

    Robert K. Heaton;Donald R. Franklin;Reena Deutsch;Scott Letendre

  • Impact of combination antiretroviral therapy on cerebrospinal fluid HIV RNA and neurocognitive performance

    Christina M. Marra;Yu Zhao;David B. Clifford;Scott Letendre

  • Cerebrospinal fluid human immunodeficiency virus type 1 RNA levels are elevated in neurocognitively impaired individuals with acquired immunodeficiency syndrome

    Ellis Rj;Hsia K;Spector Sa;Nelson Ja

  • Soluble CD163 Made by Monocyte/Macrophages Is a Novel Marker of HIV Activity in Early and Chronic Infection Prior to and After Anti-retroviral Therapy

    Tricia H. Burdo;Margaret R. Lentz;Patrick Autissier;Anitha Krishnan

  • Continued High Prevalence and Adverse Clinical Impact of Human Immunodeficiency Virus–Associated Sensory Neuropathy in the Era of Combination Antiretroviral Therapy: The CHARTER Study

    Ronald J. Ellis;Debralee Rosario;David B. Clifford;Justin C. McArthur

  • Asymptomatic HIV-associated neurocognitive impairment increases risk for symptomatic decline.

    Igor Grant;Donald R. Franklin;Reena Deutsch;Steven P. Woods

  • Cortical Synaptic Density is Reduced in Mild to Moderate Human Immunodeficiency Virus Neurocognitive Disorder

    IP Everall;RK Heaton;TD Marcotte;RJ Ellis

  • Correction: Corrigendum: Circulating HIV DNA Correlates With Neurocognitive Impairment in Older HIV-infected Adults on Suppressive ART

    Michelli Faria de Oliveira;Ben Murrell;Josué Pérez-Santiago;Milenka Vargas

  • Co-Morbidities in Persons Infected with HIV: Increased Burden with Older Age and Negative Effects on Health-Related Quality of Life

    Alan T Rodriguez-Penney;Jennifer E Iudicello;Patricia K Riggs;Katie Doyle

  • Dementia and neurocognitive disorders due to HIV-1 infection.

    Beau M. Ances;Ronald J. Ellis

Frequent Co-Authors

Igor Grant
Igor Grant University of California, San Diego
Scott Letendre
Scott Letendre University of California, San Diego
Robert K. Heaton
Robert K. Heaton University of California, San Diego
David B. Clifford
David B. Clifford Washington University in St. Louis
J. Allen McCutchan
J. Allen McCutchan University of California, San Diego
Benjamin B. Gelman
Benjamin B. Gelman The University of Texas Medical Branch at Galveston
Donald Franklin
Donald Franklin University of California, San Diego
Susan Morgello
Susan Morgello Icahn School of Medicine at Mount Sinai
Ann C. Collier
Ann C. Collier University of Washington
Mariana Cherner
Mariana Cherner University of California, San Diego

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