World's Best Scientists 2026 revealed!
Shouichi Ohga

Shouichi Ohga

D-Index & Metrics

Immunology

D-Index
50
Citations
9785
World Ranking
4234
National Ranking
162

Shouichi Ohga 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 Shouichi Ohga 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: 395 publications — 80th percentile

80% of scientists in this discipline score the same or lower.

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

Shouichi Ohga 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 Shouichi Ohga 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: 50 D-Index — 15th percentile

15% of scientists in this discipline score the same or lower.

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

Overview

Shouichi Ohga is affiliated with Kyushu University in Japan and has contributed extensively to the field of medicine, with a particular focus on genetics, molecular biology, epidemiology, immunology, and hematology. Their research spans important areas related to neonatal health, congenital conditions, and immune disorders.

The scientist's frequent publication venues include:

  • Pediatric Blood & Cancer
  • Scientific Reports
  • Pediatrics International
  • International Journal of Hematology
  • PLoS ONE

Major recent papers authored or co-authored by Shouichi Ohga include:

  • "Nationwide survey of systemic chronic active EBV infection in Japan in accordance with the new WHO classification," 2020, Blood Advances
  • "Updated guidelines for chronic active Epstein-Barr virus disease," 2023, International Journal of Hematology
  • "Neurodevelopmental outcomes following intravitreal bevacizumab injection in Japanese preterm infants with type 1 retinopathy of prematurity," 2020, PLoS ONE
  • "Mitochondrial Reactive Oxygen Species Are Essential for the Development of Psoriatic Inflammation," 2021, Frontiers in Immunology
  • "Detailed analysis of Japanese patients with adenosine deaminase 2 deficiency reveals characteristic elevation of type II interferon signature and STAT1 hyperactivation," 2021, Journal of Allergy and Clinical Immunology

Frequent co-authors collaborating with Shouichi Ohga include:

  • Yasunari Sakai
  • Masataka Ishimura
  • Masafumi Sanefuji
  • Koichi Kusuhara
  • Masayuki Shimono

The scientist's main research topics reflect a diverse range of studies, including:

  • Neonatal Respiratory Health Research
  • Congenital Heart Disease Studies
  • Infant Development and Preterm Care
  • Child Nutrition and Feeding Issues
  • Genetics and Neurodevelopmental Disorders
  • Immunodeficiency and Autoimmune Disorders
  • Heavy Metal Exposure and Toxicity

Overall, Shouichi Ohga's work is embedded within an intersection of clinical and molecular research, addressing immunological and genetic aspects of pediatric and hematological diseases. Their research output contributes materially to understanding developmental, autoimmune, and infectious conditions, often with implications for neonatal and pediatric care.

Best Publications

  • Nationwide survey of hemophagocytic lymphohistiocytosis in Japan.

    Eiichi Ishii;Shouichi Ohga;Shinsaku Imashuku;Masaki Yasukawa

  • A protective role of gamma/delta T cells in primary infection with Listeria monocytogenes in mice.

    Kenji Hiromatsu;Yasunobu Yoshikai;Gero Matsuzaki;Shouichi Ohga

  • Proposed guidelines for diagnosing chronic active epstein-barr virus infection

    Motohiko Okano;Keisei Kawa;Hiroshi Kimura;Akihiro Yachie

  • Prognostic Factors for Chronic Active Epstein-Barr Virus Infection

    Hiroshi Kimura;Tsuneo Morishima;Hirokazu Kanegane;Shouichi Ohga

  • CD25+CD4+ T cells in human cord blood: an immunoregulatory subset with naive phenotype and specific expression of forkhead box p3 (Foxp3) gene.

    Yasushi Takahata;Akihiko Nomura;Hidetoshi Takada;Shouichi Ohga

  • Sequential appearance of γ/δ‐ and α/β‐bearing T cells in the peritoneal cavity during an i.p. infection with Listeria monocytogenes

    Shouichi Ohga;Yasunobu Yoshikai;Yasuyuki Takeda;Kenji Hiromatsu

  • Inflammatory cytokines in virus-associated hemophagocytic syndrome. Interferon-gamma as a sensitive indicator of disease activity.

    Shouichi Ohga;Akinobu Matsuzaki;Mari Nishizaki;Takako Nagashima

  • Oversecretion of IL-18 in haemophagocytic lymphohistiocytosis: a novel marker of disease activity

    Hidetoshi Takada;Shouichi Ohga;Yumi Mizuno;Aiko Suminoe

  • Genetic subtypes of familial hemophagocytic lymphohistiocytosis: correlations with clinical features and cytotoxic T lymphocyte/natural killer cell functions

    Eiichi Ishii;Ikuyo Ueda;Ryutaro Shirakawa;Ken Yamamoto

  • Perforin gene mutations in adult-onset hemophagocytic lymphohistiocytosis.

    Koji Nagafuji;Atsushi Nonami;Takashi Kumano;Yoshikane Kikushige

  • Prognosis of children with virus-associated hemophagocytic syndrome and malignant histiocytosis : correlation with levels of serum interleukin-1 and tumor necrosis factor

    E. Ishii;S. Ohga;T. Aoki;S. Yamada

  • Hematopoietic stem cell transplantation for familial hemophagocytic lymphohistiocytosis and Epstein–Barr virus-associated hemophagocytic lymphohistiocytosis in Japan

    Shouichi Ohga;Kazuko Kudo;Eiichi Ishii;Satoshi Honjo

  • Epstein-Barr Virus (EBV) Load and Cytokine Gene Expression in Activated T Cells of Chronic Active EBV Infection

    Shouichi Ohga;Akihiko Nomura;Hidetoshi Takada;Kenji Ihara

  • Prospective multicenter trial comparing repeated immunosuppressive therapy with stem-cell transplantation from an alternative donor as second-line treatment for children with severe and very severe aplastic anemia

    Yoshiyuki Kosaka;Hiroshi Yagasaki;Kimihiko Sano;Ryoji Kobayashi

  • First-line treatment for severe aplastic anemia in children: bone marrow transplantation from a matched family donor versus immunosuppressive therapy

    Nao Yoshida;Ryoji Kobayashi;Hiromasa Yabe;Yoshiyuki Kosaka

  • Abnormal hematopoiesis and autoimmunity in human subjects with germline IKZF1 mutations.

    Akihiro Hoshino;Satoshi Okada;Kenichi Yoshida;Naonori Nishida

  • Cerebrospinal fluid concentrations of interleukin-1 beta, tumour necrosis factor-alpha, and interferon gamma in bacterial meningitis.

    S Ohga;T Aoki;K Okada;H Akeda

  • Immunological aspects of Epstein-Barr virus infection.

    Shouichi Ohga;Akihiko Nomura;Hidetoshi Takada;Toshiro Hara

  • Prognostic factors of Epstein-Barr virus-associated hemophagocytic lymphohistiocytosis in children: report of the Japan Histiocytosis Study Group.

    Kazuhiro Kogawa;Hiroki Sato;Takeshi Asano;Shouichi Ohga

  • In vivo hepatogenic capacity and therapeutic potential of stem cells from human exfoliated deciduous teeth in liver fibrosis in mice

    Takayoshi Yamaza;Fatima Safira Alatas;Ratih Yuniartha;Haruyoshi Yamaza

  • Characteristics of hemophagocytic lymphohistiocytosis in neonates: a nationwide survey in Japan.

    Nobuhiro Suzuki;Akira Morimoto;Shouichi Ohga;Kazuko Kudo

  • Correlation between phenotypic heterogeneity and gene mutational characteristics in familial hemophagocytic lymphohistiocytosis (FHL).

    Ikuyo Ueda;Eiichi Ishii;Akira Morimoto;Shouichi Ohga

  • Microarray analysis of human milk cells: persistent high expression of osteopontin during the lactation period

    Taro Nagatomo;S. Ohga;H. Takada;A. Nomura

  • Review of hemophagocytic lymphohistiocytosis (HLH) in children with focus on Japanese experiences.

    Eiichi Ishii;Shouichi Ohga;Shinsaku Imashuku;Nobuhiro Kimura

  • Allogeneic hematopoietic stem cell transplantation for Epstein-Barr virus-associated T/natural killer-cell lymphoproliferative disease in Japan.

    Emiko Sato;Shouichi Ohga;Hiroshi Kuroda;Fumiaki Yoshiba

  • Clinicopathological states of Epstein-Barr virus-associated T/NK-cell lymphoproliferative disorders (severe chronic active EBV infection) of children and young adults.

    Keiko Suzuki;Koichi Ohshima;Kennosuke Karube;Junji Suzumiya

  • Clinical utility of next-generation sequencing for inherited bone marrow failure syndromes

    Hideki Muramatsu;Yusuke Okuno;Kenichi Yoshida;Yuichi Shiraishi

Frequent Co-Authors

Toshiro Hara
Toshiro Hara Kyushu University
Seiji Kojima
Seiji Kojima Nagoya University
Etsuro Ito
Etsuro Ito Hirosaki University
Seishi Ogawa
Seishi Ogawa Kyoto University
Yoshinao Oda
Yoshinao Oda Kyushu University
Koichi Ohshima
Koichi Ohshima Kurume University
Dongchon Kang
Dongchon Kang Kyushu University
Hiroyuki Honda
Hiroyuki Honda Nagoya University
Hirokazu Kanegane
Hirokazu Kanegane Tokyo Medical and Dental University
Satoru Miyano
Satoru Miyano Tokyo Medical and Dental University

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