World's Best Scientists 2026 revealed!
Fumio Tsuda

Fumio Tsuda

D-Index & Metrics

Immunology

D-Index
77
Citations
22304
World Ranking
1815
National Ranking
68

Medicine

D-Index
77
Citations
22363
World Ranking
18407
National Ranking
591

Fumio Tsuda 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 Fumio Tsuda 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: 220 publications — 41st percentile

41% of scientists in this discipline score the same or lower.

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

Fumio Tsuda 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 Fumio Tsuda 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: 77 D-Index — 64th percentile

64% of scientists in this discipline score the same or lower.

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

Overview

Fumio Tsuda is a researcher affiliated with Toshiba in Japan, whose work spans several fields within the life sciences. Their research primarily focuses on biochemistry, genetics, and molecular biology, with specific interests in molecular biology and pathology and forensic medicine as subfields. Tsuda's investigations also cover key topics such as phytochemical compounds biological activities, phytoestrogen effects and research, and natural product bioactivities and synthesis.

Their publication record includes contributions to both scientific journals and collaborative research efforts. Tsuda has published work in venues such as Jurnal Veterinar Malaysia, a journal where the researcher's study on phytochemicals was featured.

Among their documented research papers is one titled "Inhibitory effects of Tongkat Ali (Eurycoma longifolia) extract on lighting stress induced sleep disorders in pigs," published in 2021 in the Jurnal Veterinar Malaysia. This research explores the biological impact of natural extracts on stress-related physiological conditions.

Tsuda's frequent collaborators include Yûzô Kuroki, F. Tawara, and S. Tsumagari. These collaborations reflect a network of researchers focused on related biochemical and medical fields, supporting multidisciplinary approaches to complex biological questions.

The scientist's work is situated at the intersection of natural product research and molecular biology, contributing to the understanding of natural compounds and their biological effects. This includes the study of phytoestrogens and other bioactive substances derived from plants, which have roles in both health and disease contexts.

  • Main fields of study: Biochemistry, Genetics and Molecular Biology; Medicine
  • Subfields of study: Molecular Biology; Pathology and Forensic Medicine
  • Main topics of work: Phytochemical compounds biological activities; Phytoestrogen effects and research; Natural product bioactivities and synthesis
  • Publication venues: Jurnal Veterinar Malaysia
  • Frequent co-authors: Yûzô Kuroki; F. Tawara; S. Tsumagari
  • Recent papers: Inhibitory effects of Tongkat Ali (Eurycoma longifolia) extract on lighting stress induced sleep disorders in pigs (2021) in Jurnal Veterinar Malaysia

Best Publications

  • Typing Hepatitis B Virus by Homology in Nucleotide Sequence: Comparison of Surface Antigen Subtypes

    Hiroaki Okamoto;Fumio Tsuda;Hiroshi Sakugawa;Retno I. Sastrosoewignjo

  • Typing hepatitis C virus by polymerase chain reaction with type-specific primers: application to clinical surveys and tracing infectious sources.

    Hiroaki Okamoto;Yasushi Sugiyama;Shunichi Okada;Kiyohiko Kurai

  • Full-length sequence of a hepatitis C virus genome having poor homology to reported isolates: comparative study of four distinct genotypes.

    Hiroaki Okamoto;Kiyohiko Kurai;Shun-Ichi Okada;Kayoko Yamamoto

  • Hepatitis B virus with mutations in the core promoter for an e antigen-negative phenotype in carriers with antibody to e antigen.

    H Okamoto;F Tsuda;Y Akahane;Y Sugai

  • The 5'-terminal sequence of the hepatitis C virus genome.

    Okamoto H;Okada S;Sugiyama Y;Yotsumoto S

  • Hepatitis B viruses with precore region defects prevail in persistently infected hosts along with seroconversion to the antibody against e antigen.

    H Okamoto;S Yotsumoto;Y Akahane;T Yamanaka

  • Hepatitis C virus infection in medical personnel after needlestick accident

    Takehiro Mitsui;Keiko Iwano;Kazuo Masuko;Chikao Yamazaki

  • Infection with Hepatitis GB Virus C in Patients on Maintenance Hemodialysis

    Kazuo Masuko;Takehiro Mitsui;Keiko Iwano;Chikao Yamazaki

  • Fecal excretion of a nonenveloped DNA virus (TTV) associated with posttransfusion non-A-G hepatitis

    Hiroaki Okamoto;Yoshihiro Akahane;Masato Ukita;Masako Fukuda

  • Hepatitis B virus strains with mutations in the core promoter in patients with fulminant hepatitis.

    Shunichi Sato;Kazuyuki Suzuki;Yoshihiro Akahane;Koichi Akamatsu

  • Serological detection of hepatitis B virus genotypes by ELISA with monoclonal antibodies to type-specific epitopes in the preS2-region product.

    Sadakazu Usuda;Hiroaki Okamoto;Hiroko Iwanari;Kiyoshi Baba

  • Naturally occurring escape mutants of hepatitis B virus with various mutations in the S gene in carriers seropositive for antibody to hepatitis B surface antigen.

    K Yamamoto;M Horikita;F Tsuda;K Itoh

  • Marked genomic heterogeneity and frequent mixed infection of TT virus demonstrated by PCR with primers from coding and noncoding regions.

    Hiroaki Okamoto;Masaharu Takahashi;Tsutomu Nishizawa;Masato Ukita

  • Fulminant hepatitis B: Induction by hepatitis B virus mutants defective in the precore region and incapable of encoding E antigen

    Yoshitane Kosaka;Kohjiro Takase;Mineo Kojima;Masaru Shimizu

  • Swine hepatitis E virus strains in Japan form four phylogenetic clusters comparable with those of Japanese isolates of human hepatitis E virus.

    Masaharu Takahashi;Tsutomu Nishizawa;Haruko Miyajima;Yuhko Gotanda

  • A synthetic peptide vaccine involving the product of the pre-S(2) region of hepatitis B virus DNA: protective efficacy in chimpanzees

    Yukio Itoh;Emiko Takai;Hitoshi Ohnuma;Kohji Kitajima

  • Point mutation in the S gene of hepatitis B virus for a d/y or w/r subtypic change in two blood donors carrying a surface antigen of compound subtype adyr or adwr.

    H Okamoto;M Imai;F Tsuda;T Tanaka

  • Non-A, non-B hepatitis specific antibodies directed at host-derived epitope: implication for an autoimmune process

    S. Mishiro;Y. Hoshi;A. Yoshikawa;T. Gotanda

  • Possible risk factors for the transmission of hepatitis E virus and for the severe form of hepatitis E acquired locally in Hokkaido, Japan

    Hitoshi Mizuo;Yasuyuki Yazaki;Kenji Sugawara;Fumio Tsuda

  • Hepatitis C virus variants from Vietnam are classifiable into the seventh, eighth, and ninth major genetic groups.

    Hajime Tokita;Hiroaki Okamoto;Fumio Tsuda;Pham Song

Frequent Co-Authors

Hiroaki Okamoto
Hiroaki Okamoto Jichi Medical University
Makoto Mayumi
Makoto Mayumi Jichi Medical University
Takeshi Tanaka
Takeshi Tanaka Texas Medical Center
Yuzo Miyakawa
Yuzo Miyakawa Miyakawa Memorial Research Foundation
Masaharu Takahashi
Masaharu Takahashi Chiba University
Shunji Mishiro
Shunji Mishiro Toshiba (Japan)
Kendo Kiyosawa
Kendo Kiyosawa Shinshu University
Shiro Iino
Shiro Iino St. Marianna University School of Medicine
Norio Hayashi
Norio Hayashi Osaka University
Michio Imamura
Michio Imamura Hiroshima University

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