2026 Yoshimichi Okayama: Immunology Researcher – H-Index, Publications & Awards

Discipline name	D-Index	World Ranking	Current World Ranking	National Ranking	Current National Ranking	Publications	Citations
Immunology	51	4144	3825	159	143	192	9883

Yoshimichi Okayama 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 Yoshimichi Okayama sits on this spectrum.

62 publications 807+

This scientist: 192 publications — 31st percentile

31% of scientists in this discipline score the same or lower.

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

Yoshimichi Okayama 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 Yoshimichi Okayama sits on this spectrum.

40 D-Index 157+

This scientist: 51 D-Index — 17th percentile

17% of scientists in this discipline score the same or lower.

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

Overview

Yoshimichi Okayama is affiliated with Nihon University in Japan. Their research primarily addresses topics in medicine, with a significant focus on immunology and microbiology. Within these domains, they explore subfields such as immunology, rheumatology, immunology and allergy, physiology, and genetics.

Their scientific work covers various specialized topics including:

Mast cells and histamine
Urticaria and related conditions
IL-33, ST2, and ILC pathways
Asthma and respiratory diseases
Food allergy and anaphylaxis research
Coagulation, bradykinin, polyphosphates, and angioedema
Allergic rhinitis and sensitization

Yoshimichi Okayama has published extensively, contributing to prominent journals with a focus on allergic and immunological research. Frequent publication venues for their work include:

Allergology International
Journal of Allergy and Clinical Immunology
Allergy
Asia Pacific Allergy
Modern Rheumatology

Key recent papers authored or coauthored by Yoshimichi Okayama are:

Roles of omalizumab in various allergic diseases, 2020, Allergology International
Activation of inflammation and resolution pathways of lipid mediators in synovial fluid from patients with severe rheumatoid arthritis compared with severe osteoarthritis, 2020, Asia Pacific Allergy
Orally desensitized mast cells form a regulatory network with Treg cells for the control of food allergy, 2020, Mucosal Immunology
miR103a-3p in extracellular vesicles from FcεRI-aggregated human mast cells enhances IL-5 production by group 2 innate lymphoid cells, 2021, Journal of Allergy and Clinical Immunology
Neuro-allergology: Mast cell-nerve cross-talk, 2022, Allergology International

The scientist frequently collaborates with a group of recurring coauthors. These include:

Shota Toyoshima
Koremasa Hayama
Tadashi Terui
Yusuke Kurosawa
Yasuhiro Gon

Best Publications

Interleukin 4 is localized to and released by human mast cells

P Bradding;I H Feather;P H Howarth;R Mueller

733
Citations
Development, migration, and survival of mast cells.

Yoshimichi Okayama;Toshiaki Kawakami

563
Citations
IL-33 can promote survival, adhesion and cytokine production in human mast cells.

Motoyasu Iikura;Hajime Suto;Hajime Suto;Naoki Kajiwara;Keisuke Oboki

453
Citations
Expression of Mas-related gene X2 on mast cells is upregulated in the skin of patients with severe chronic urticaria

Daisuke Fujisawa;Jun Ichi Kashiwakura;Hirohito Kita;Yusuke Kikukawa

439
Citations
Heterogeneity of human mast cells based on cytokine content.

P Bradding;Y Okayama;P H Howarth;M K Church

388
Citations
IL-33 induces IL-13 production by mouse mast cells independently of IgE-FcεRI signals

Lien H. Ho;Tatsukuni Ohno;Keisuke Oboki;Naoki Kajiwara

361
Citations
Oxidative Stress in Allergic and Inflammatory Skin Diseases

Yoshimichi Okayama

340
Citations
Expression of a functional high-affinity IgG receptor, Fc gamma RI, on human mast cells: Up-regulation by IFN-gamma.

Yoshimichi Okayama;Arnold S. Kirshenbaum;Dean D. Metcalfe

281
Citations
T Cell Proliferation by Direct Cross-Talk between OX40 Ligand on Human Mast Cells and OX40 on Human T Cells: Comparison of Gene Expression Profiles between Human Tonsillar and Lung-Cultured Mast Cells

Jun-ichi Kashiwakura;Hidenori Yokoi;Hirohisa Saito;Yoshimichi Okayama

226
Citations
Functional SNPs in the distal promoter of the ST2 gene are associated with atopic dermatitis

Makiko Shimizu;Akira Matsuda;Ken Yanagisawa;Tomomitsu Hirota

220
Citations
IgE-dependent expression of mRNA for IL-4 and IL-5 in human lung mast cells.

Y Okayama;C Petit-Frére;O Kassel;A Semper

200
Citations
NF-κB and TNF-α: A Positive Autocrine Loop in Human Lung Mast Cells?

William R. Coward;Yoshimichi Okayama;Hironori Sagara;Susan J. Wilson

185
Citations
FcεRI-mediated amphiregulin production by human mast cells increases mucin gene expression in epithelial cells

Shigeru Okumura;Hironori Sagara;Takeshi Fukuda;Hirohisa Saito

181
Citations
Tissue remodeling induced by hypersecreted epidermal growth factor and amphiregulin in the airway after an acute asthma attack

Yukinori Enomoto;Kanami Orihara;Tetsuya Takamasu;Akio Matsuda

170
Citations
Biomarkers of the involvement of mast cells, basophils and eosinophils in asthma and allergic diseases

Dean D. Metcalfe;Ruby Pawankar;Steven J. Ackerman;Cem Akin

170
Citations
Identification of specific gene expression profiles in human mast cells mediated by Toll-like receptor 4 and FcepsilonRI.

Unknown

170
Citations
Activation of human mast cells through the platelet-activating factor receptor

Naoki Kajiwara;Tomomi Sasaki;Peter Bradding;Glenn Cruse

166
Citations
Inhibition profiles of sodium cromoglycate and nedocromil sodium on mediator release from mast cells of human skin, lung, tonsil, adenoid and intestine

Y. Okayama;R. C. Benyon;P. H. Rees;M. A. Lowman

155
Citations
A comparison of mediators released or generated by IFN-gamma-treated human mast cells following aggregation of Fc gamma RI or Fc epsilon RI.

Yoshimichi Okayama;David D. Hagaman;Dean D. Metcalfe

151
Citations
Mast cell maturation is driven via a group III phospholipase A2-prostaglandin D2–DP1 receptor paracrine axis

Yoshitaka Taketomi;Yoshitaka Taketomi;Noriko Ueno;Takumi Kojima;Hiroyasu Sato;Hiroyasu Sato

146
Citations
FcεRI-mediated thymic stromal lymphopoietin production by interleukin-4-primed human mast cells

Y. Okayama;S. Okumura;H. Sagara;K. Yuki

135
Citations

Frequent Co-Authors

Hirohisa Saito Juntendo University

Chisei Ra Nihon University

Martin K. Church Southampton General Hospital

Akira Matsuda Juntendo University

Kenji Matsumoto Izumi Municipal Hospital

Hirokazu Kimura RMIT University

Dean D. Metcalfe National Institute of Allergy and Infectious Diseases

Chisei Ra Juntendo University

Masatomo Mori Gunma University

Makoto Murakami University of Tokyo

If you think any of the details on this page are incorrect, let us know.

Related Online Degrees & Career Pathways

For those interested in Immunology, pursuing related healthcare degrees can provide valuable career opportunities. One popular route is becoming a Nurse Practitioner (NP), where advanced clinical skills complement immunological knowledge. Those looking for flexible, cost-effective options should explore the cheapest pmhnp programs online, which offer specialized training in psychiatric mental health.

Nurses aiming to enhance their expertise might consider accelerated paths. Accelerated NP programs enable faster completion, making it easier to transition into roles that intersect with Immunology, such as acute care.

Speaking of acute care, certification is essential for those who want to work in high-intensity environments. Programs on acute care np certification guide practitioners through this critical transition, opening doors to specialties closely related to Immunology management.

Finally, salary potential varies widely across NP specialties. Checking out data on the highest paid dnp specialties can help students and professionals select a career pathway that is both rewarding and aligned with their passion for Immunology.