World's Best Scientists 2026 revealed!
Shinichi Oka

Shinichi Oka

D-Index & Metrics

Immunology

D-Index
62
Citations
20426
World Ranking
3097
National Ranking
128

Shinichi Oka publication distribution in Immunology in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Immunology in 2026. The highlighted bar marks where Shinichi Oka sits on this spectrum.

62–71 publications: 9 scientists 72–81 publications: 23 scientists 82–91 publications: 40 scientists 92–101 publications: 72 scientists 102–111 publications: 86 scientists 112–121 publications: 108 scientists 122–131 publications: 150 scientists 132–141 publications: 160 scientists 142–151 publications: 159 scientists 152–161 publications: 189 scientists 162–171 publications: 166 scientists 172–181 publications: 181 scientists 182–191 publications: 188 scientists 192–201 publications: 187 scientists 202–211 publications: 178 scientists 212–221 publications: 158 scientists 222–231 publications: 168 scientists 232–241 publications: 159 scientists 242–251 publications: 160 scientists 252–261 publications: 148 scientists 262–271 publications: 116 scientists 272–281 publications: 125 scientists 282–291 publications: 115 scientists 292–301 publications: 111 scientists 302–311 publications: 95 scientists 312–321 publications: 97 scientists 322–331 publications: 97 scientists 332–341 publications: 99 scientists 342–351 publications: 96 scientists 352–361 publications: 68 scientists 362–371 publications: 76 scientists 372–381 publications: 71 scientists 382–391 publications: 71 scientists 392–401 publications: 62 scientists 402–411 publications: 54 scientists 412–421 publications: 41 scientists 422–431 publications: 63 scientists 432–441 publications: 53 scientists 442–451 publications: 31 scientists 452–461 publications: 42 scientists 462–471 publications: 40 scientists 472–481 publications: 29 scientists 482–491 publications: 34 scientists 492–501 publications: 30 scientists 502–511 publications: 23 scientists 512–521 publications: 41 scientists 522–531 publications: 29 scientists 532–541 publications: 28 scientists 542–551 publications: 16 scientists 552–561 publications: 18 scientists 562–571 publications: 18 scientists 572–581 publications: 17 scientists 582–591 publications: 17 scientists 592–601 publications: 17 scientists 602–611 publications: 19 scientists 612–621 publications: 13 scientists 622–631 publications: 12 scientists 632–641 publications: 11 scientists 642–651 publications: 16 scientists 652–661 publications: 9 scientists 662–671 publications: 5 scientists 672–681 publications: 13 scientists 682–691 publications: 12 scientists 692–701 publications: 6 scientists 702–711 publications: 6 scientists 712–721 publications: 9 scientists 722–731 publications: 9 scientists 732–741 publications: 6 scientists 742–751 publications: 11 scientists 752–761 publications: 10 scientists 762–771 publications: 7 scientists 772–781 publications: 12 scientists 782–791 publications: 7 scientists 792–801 publications: 5 scientists 802–806 publications: 1 scientists 807+ publications: 100 scientists
62 publications 807+

This scientist: 617 publications — 95th percentile

95% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 807 publications or more.

Shinichi Oka D-index placement in Immunology in 2026

The chart shows the D-index (discipline H-index) distribution of Immunology scientists ranked by Research.com in 2026. The highlighted bar marks where Shinichi Oka sits on this spectrum.

40–41 D-Index: 28 scientists 42–43 D-Index: 91 scientists 44–45 D-Index: 157 scientists 46–47 D-Index: 192 scientists 48–49 D-Index: 175 scientists 50–51 D-Index: 188 scientists 52–53 D-Index: 177 scientists 54–55 D-Index: 155 scientists 56–57 D-Index: 194 scientists 58–59 D-Index: 201 scientists 60–61 D-Index: 197 scientists 62–63 D-Index: 201 scientists 64–65 D-Index: 173 scientists 66–67 D-Index: 167 scientists 68–69 D-Index: 172 scientists 70–71 D-Index: 199 scientists 72–73 D-Index: 184 scientists 74–75 D-Index: 133 scientists 76–77 D-Index: 162 scientists 78–79 D-Index: 127 scientists 80–81 D-Index: 121 scientists 82–83 D-Index: 125 scientists 84–85 D-Index: 121 scientists 86–87 D-Index: 102 scientists 88–89 D-Index: 96 scientists 90–91 D-Index: 75 scientists 92–93 D-Index: 72 scientists 94–95 D-Index: 74 scientists 96–97 D-Index: 66 scientists 98–99 D-Index: 68 scientists 100–101 D-Index: 49 scientists 102–103 D-Index: 60 scientists 104–105 D-Index: 54 scientists 106–107 D-Index: 36 scientists 108–109 D-Index: 23 scientists 110–111 D-Index: 52 scientists 112–113 D-Index: 41 scientists 114–115 D-Index: 34 scientists 116–117 D-Index: 25 scientists 118–119 D-Index: 28 scientists 120–121 D-Index: 11 scientists 122–123 D-Index: 20 scientists 124–125 D-Index: 27 scientists 126–127 D-Index: 19 scientists 128–129 D-Index: 20 scientists 130–131 D-Index: 16 scientists 132–133 D-Index: 17 scientists 134–135 D-Index: 14 scientists 136–137 D-Index: 15 scientists 138–139 D-Index: 9 scientists 140–141 D-Index: 11 scientists 142–143 D-Index: 9 scientists 144–145 D-Index: 9 scientists 146–147 D-Index: 7 scientists 148–149 D-Index: 7 scientists 150–151 D-Index: 7 scientists 152–153 D-Index: 5 scientists 154–155 D-Index: 8 scientists 156 D-Index: 6 scientists 157+ D-Index: 96 scientists
40 D-Index 157+

This scientist: 62 D-Index — 37th percentile

37% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 157 D-Index or more.

Overview

Shinichi Oka is affiliated with Kumamoto University in Japan and has contributed extensively to research in the fields of Medicine, Immunology, and Microbiology. Their work primarily focuses on Infectious Diseases, Epidemiology, and Virology, with a significant emphasis on HIV research and treatment.

The scientist's research topics cover a range of areas related to HIV/AIDS, including HIV Research and Treatment, HIV/AIDS Research and Interventions, and HIV/AIDS drug development and treatment. Other notable topics within their scope include HIV-related health complications and treatments, HIV, Drug Use, Sexual Risk, Immune Cell Function and Interaction, and Hepatitis C virus research.

Shinichi Oka has collaborated frequently with several co-authors, highlighting strong professional partnerships. These co-authors include Hiroyuki Gatanaga, Daisuke Mizushima, Misao Takano, Yoshimi Kikuchi, and Kôji Watanabe.

Their publication record spans a variety of journals and venues, notably:

  • Global Health & Medicine (22 publications)
  • Scientific Reports (9 publications)
  • Journal of Infection and Chemotherapy (7 publications)
  • Journal of Virology (7 publications)
  • bioRxiv (Cold Spring Harbor Laboratory) (5 publications)

Noteworthy papers authored include:

  • "Long-Acting Cabotegravir and Rilpivirine after Oral Induction for HIV-1 Infection," 2020, New England Journal of Medicine
  • "Metagenomic Identification of Microbial Signatures Predicting Pancreatic Cancer From a Multinational Study," 2022, Gastroenterology
  • "Long-acting cabotegravir plus rilpivirine for treatment in adults with HIV-1 infection: 96-week results of the randomised, open-label, phase 3 FLAIR study," 2021, The Lancet HIV
  • "Population-level Metagenomics Uncovers Distinct Effects of Multiple Medications on the Human Gut Microbiome," 2022, Gastroenterology
  • "Long-Acting Injectable Cabotegravir + Rilpivirine for HIV Maintenance Therapy: Week 48 Pooled Analysis of Phase 3 ATLAS and FLAIR Trials," 2020, JAIDS Journal of Acquired Immune Deficiency Syndromes

Best Publications

  • Circulating microRNAs in sera correlate with soluble biomarkers of immune activation but do not predict mortality in ART treated individuals with HIV-1 infection : a case control study

    Daniel D. Murray;Kazuo Suzuki;Matthew Law;Jonel Trebicka

  • Tenofovir alafenamide versus tenofovir disoproxil fumarate, coformulated with elvitegravir, cobicistat, and emtricitabine, for initial treatment of HIV-1 infection: two randomised, double-blind, phase 3, non-inferiority trials

    Paul E Sax;David Wohl;Michael T Yin;Frank Post

  • Adaptation of HIV-1 to human leukocyte antigen class I

    Y. Kawashima;K. Pfafferott;J. Frater;P. Matthews

  • Long-Acting Cabotegravir and Rilpivirine after Oral Induction for HIV-1 Infection

    Chloe Orkin;Keikawus Arasteh;Miguel Górgolas Hernández-Mora;Vadim Pokrovsky

  • Homozygous CYP2B6 *6 (Q172H and K262R) correlates with high plasma efavirenz concentrations in HIV-1 patients treated with standard efavirenz-containing regimens.

    Kiyoto Tsuchiya;Hiroyuki Gatanaga;Natsuo Tachikawa;Katsuji Teruya

  • Successful Efavirenz Dose Reduction in HIV Type 1-Infected Individuals with Cytochrome P450 2B6 *6 and *26

    Hiroyuki Gatanaga;Tsunefusa Hayashida;Kiyoto Tsuchiya;Munehiro Yoshino

  • Assessment, Diagnosis, and Treatment of HIV-Associated Neurocognitive Disorder: A Consensus Report of the Mind Exchange Program

    Andrea Antinori;Gabriele Arendt;Igor Grant

  • Induction of IFN-λ3 as an additional effect of nucleotide, not nucleoside, analogues: a new potential target for HBV infection.

    Kazumoto Murata;Mai Asano;Akihiro Matsumoto;Masaya Sugiyama

  • HLA-Cw8 primarily associated with hypersensitivity to nevirapine.

    Hiroyuki Gatanaga;Hirohisa Yazaki;Junko Tanuma;Miwako Honda

  • Immunodeficiency at the start of combination antiretroviral therapy in low-, middle-, and high-income countries.

    Dorita Avila;Keri N. Althoff;Catrina Mugglin;Kara Wools-Kaloustian

  • Long-acting cabotegravir plus rilpivirine for treatment in adults with HIV-1 infection: 96-week results of the randomised, open-label, phase 3 FLAIR study

    Chloe Orkin;Shinichi Oka;Patrick Philibert;Cynthia Brinson

  • Influence of human immunodeficiency virus type 1 infection on acute hepatitis A virus infection.

    Setsuko Ida;Natsuo Tachikawa;Aya Nakajima;Manabu Daikoku

  • Functional Expression of the Chemokine Receptor CCR5 on Virus Epitope-Specific Memory and Effector CD8+ T Cells

    Katsuhiko Fukada;Yuji Sobao;Hiroko Tomiyama;Shinichi Oka

  • Identification and characterization of multiple HLA-A24-restricted HIV-1 CTL epitopes: strong epitopes are derived from V regions of HIV-1.

    Yuki Ikeda-Moore;Hiroko Tomiyama;Kiyoshi Miwa;Shinichi Oka

  • Novel Conserved-region T-cell Mosaic Vaccine With High Global HIV-1 Coverage Is Recognized by Protective Responses in Untreated Infection

    Beatrice Ondondo;Hayato Murakoshi;Genevieve Clutton;Genevieve Clutton;Sultan Abdul-Jawad

  • Extensive gut virome variation and its associations with host and environmental factors in a population-level cohort

    Unknown

  • Impact of small body weight on tenofovir-associated renal dysfunction in HIV-infected patients: a retrospective cohort study of Japanese patients

    Takeshi Nishijima;Hirokazu Komatsu;Hiroyuki Gatanaga;Takahiro Aoki

  • Urinary beta2-microglobulin as a possible sensitive marker for renal injury caused by tenofovir disoproxil fumarate.

    Hiroyuki Gatanaga;Natsuo Tachikawa;Yoshimi Kikuchi;Katsuji Teruya

  • Long-Acting Injectable Cabotegravir + Rilpivirine for HIV Maintenance Therapy: Week 48 Pooled Analysis of Phase 3 ATLAS and FLAIR Trials.

    Giuliano Rizzardini;Edgar T. Overton;Chloe Orkin;Susan Swindells

  • Serum (1→3) β-D-Glucan as a Noninvasive Adjunct Marker for the Diagnosis of Pneumocystis Pneumonia in Patients with AIDS

    Tamayo Watanabe;Akira Yasuoka;Junko Tanuma;Hirohisa Yazaki

  • Polymorphism in the Interleukin-4 Promoter Affects Acquisition of Human Immunodeficiency Virus Type 1 Syncytium-Inducing Phenotype

    Emi E. Nakayama;Yoshihiko Hoshino;Xiaomi Xin;Huanliang Liu

  • Rapid and simple phenotypic assay for drug susceptibility of human immunodeficiency virus type 1 using CCR5-expressing HeLa/CD4(+) cell clone 1-10 (MAGIC-5).

    Atsuko Hachiya;Saori Aizawa-Matsuoka;Mari Tanaka;Yukiko Takahashi

  • Novel Mutation of Human DNA Polymerase γ Associated with Mitochondrial Toxicity Induced by Anti-HIV Treatment

    Hikaru Yamanaka;Hiroyuki Gatanaga;Pope Kosalaraksa;Saori Matsuoka-Aizawa

Frequent Co-Authors

Hiroyuki Gatanaga
Hiroyuki Gatanaga Kumamoto University
Satoshi Kimura
Satoshi Kimura University of Tokyo
Masafumi Takiguchi
Masafumi Takiguchi Kumamoto University
Matthew Law
Matthew Law University of New South Wales
Adeeba Kamarulzaman
Adeeba Kamarulzaman University of Malaya
Aikichi Iwamoto
Aikichi Iwamoto Japan Agency for Medical Research and Development
Hiroaki Mitsuya
Hiroaki Mitsuya Kumamoto University
Zabrina L. Brumme
Zabrina L. Brumme Simon Fraser University
Thira Sirisanthana
Thira Sirisanthana Chiang Mai University
Manabu Mochizuki
Manabu Mochizuki Tokyo Medical and Dental University

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