Ryuhei Okuyama

5.8k total citations · 1 hit paper
164 papers, 3.7k citations indexed

About

Ryuhei Okuyama is a scholar working on Oncology, Immunology and Molecular Biology. According to data from OpenAlex, Ryuhei Okuyama has authored 164 papers receiving a total of 3.7k indexed citations (citations by other indexed papers that have themselves been cited), including 67 papers in Oncology, 55 papers in Immunology and 45 papers in Molecular Biology. Recurrent topics in Ryuhei Okuyama's work include Cutaneous Melanoma Detection and Management (27 papers), Immunotherapy and Immune Responses (21 papers) and Cancer Immunotherapy and Biomarkers (20 papers). Ryuhei Okuyama is often cited by papers focused on Cutaneous Melanoma Detection and Management (27 papers), Immunotherapy and Immune Responses (21 papers) and Cancer Immunotherapy and Biomarkers (20 papers). Ryuhei Okuyama collaborates with scholars based in Japan, United States and United Kingdom. Ryuhei Okuyama's co-authors include Eisaku Ogawa, Setsuya Aiba, Akane Minagawa, Yuki Sato, Hachiro Tagami, Hisashi Uhara, G. Paolo Dotto, Masuo Obinata, Taku Fujimura and Yukiko Kiniwa and has published in prestigious journals such as Proceedings of the National Academy of Sciences, Journal of Biological Chemistry and SHILAP Revista de lepidopterología.

In The Last Decade

Ryuhei Okuyama

158 papers receiving 3.7k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Pathogenesis of psoriasis and development of treatment

2017 361 citations Eisaku Ogawa, Yuki Sato et al. The Journal of Dermatology profile →

Peers

Ryuhei Okuyama

IMMUN

ONCOL

DERMA

Laurence Michel France

Atsushi Otsuka Japan

Rainer Zenz Austria

Min Hee Oh United States

Xianying Xing United States

Ling Wu China

Qing‐Sheng Mi United States

Erle Dang China

Wolfram Hoetzenecker Austria

Junjie Zhao China

Laurence Michel France

Ryuhei Okuyama

765 ×0.6

1.2k ×1.0

IMMUN

495 ×0.4

ONCOL

1.2k ×1.4

DERMA

207 ×0.6

Citations per year, relative to Ryuhei Okuyama Ryuhei Okuyama (= 1×) peers Laurence Michel

Countries citing papers authored by Ryuhei Okuyama

Since Specialization

Citations

This map shows the geographic impact of Ryuhei Okuyama's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ryuhei Okuyama with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ryuhei Okuyama more than expected).

Fields of papers citing papers by Ryuhei Okuyama

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ryuhei Okuyama. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ryuhei Okuyama. The network helps show where Ryuhei Okuyama may publish in the future.

Co-authorship network of co-authors of Ryuhei Okuyama

This figure shows the co-authorship network connecting the top 25 collaborators of Ryuhei Okuyama. A scholar is included among the top collaborators of Ryuhei Okuyama based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ryuhei Okuyama. Ryuhei Okuyama is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Hida, Tokimasa, Masashi Idogawa, Sayuri Sato, et al.. (2025). Fusion Gene Detection in Driver Mutation‐Negative Melanomas Using RNA ‐Based Anchored Multiplex Polymerase Chain Reaction. Pigment Cell & Melanoma Research. 38(6). e70056–e70056.

Hida, Tokimasa, Masashi Idogawa, Junji Kato, et al.. (2024). Genetic Characteristics of Cutaneous, Acral, and Mucosal Melanoma in Japan. Cancer Medicine. 13(22). e70360–e70360. 6 indexed citations

Kanda, Shintaro, Takao Ide, Mitsuhisa Komatsu, et al.. (2023). Antiplatelet drugs may increase the risk for checkpoint inhibitor-related pneumonitis in advanced cancer patients. ESMO Open. 8(6). 102030–102030. 6 indexed citations

Morita, Akimichi, Yukari Okubo, Shinichi Imafuku, et al.. (2023). Assessment of flare frequency and severity of generalized pustular psoriasis in Japanese patients: A retrospective chart review study. SHILAP Revista de lepidopterología. 2(2). 261–272. 2 indexed citations

Sano, Kenji, et al.. (2023). Type 1 interferon signature and cytotoxic T lymphocyte activation targeted against sweat ducts in inflammatory acquired idiopathic generalized anhidrosis. Journal of the European Academy of Dermatology and Venereology. 37(10). 2124–2132. 2 indexed citations

Ashida, Atsuko, Shuta Tomida, Tokuro Iwabuchi, et al.. (2022). Persistent alteration of the skin microbiome in patients with skin rash after receiving EGFR inhibitor treatment. Experimental Dermatology. 32(5). 671–677. 1 indexed citations

Nakamura, Kenta & Ryuhei Okuyama. (2022). Changes in the Immune Cell Repertoire for the Treatment of Malignant Melanoma. International Journal of Molecular Sciences. 23(21). 12991–12991. 5 indexed citations

Kiniwa, Yukiko, Kenta Nakamura, Atsuko Ashida, et al.. (2021). Usefulness of monitoring circulating tumor cells as a therapeutic biomarker in melanoma with BRAF mutation. BMC Cancer. 21(1). 19 indexed citations

Nakamura, Kenta, Atsuko Ashida, Yukiko Kiniwa, & Ryuhei Okuyama. (2021). Chemokine level predicts the therapeutic effect of anti-PD-1 antibody (nivolumab) therapy for malignant melanoma. Archives of Dermatological Research. 314(9). 887–895. 2 indexed citations

10.

Suzuki, Rika, et al.. (2020). Successful treatment of cutaneous infection due to Purpureocillium lilacinum using voriconazole. The Journal of Dermatology. 47(9). e342–e343. 3 indexed citations

11.

Tsutsumida, Arata, Satoshi Fukushima, Kenji Yokota, et al.. (2019). Japanese real‐world study of sequential nivolumab and ipilimumab treament in melanoma. The Journal of Dermatology. 46(11). 947–955. 13 indexed citations

12.

Hayashi, Kôichi, Ryuhei Okuyama, & Hisashi Uhara. (2016). Water‐based correction fluid is a useful skin marker for determination of the tumor margin of basal cell carcinoma under high‐frequency ultrasound. The Journal of Dermatology. 43(7). 823–825. 5 indexed citations

13.

Hidaka, Takanori, Eisaku Ogawa, Eri Kobayashi, et al.. (2016). The aryl hydrocarbon receptor AhR links atopic dermatitis and air pollution via induction of the neurotrophic factor artemin. Nature Immunology. 18(1). 64–73. 214 indexed citations

14.

Shirai, T, Minori Kodaira, Nagaaki Katoh, et al.. (2015). Acetylcholine receptor binding antibody-associated myasthenia gravis and rhabdomyolysis induced by nivolumab in a patient with melanoma. Japanese Journal of Clinical Oncology. 46(1). 86–88. 108 indexed citations

15.

Ogawa, Eisaku, et al.. (2013). Current State of Therapies, Including with Biologics, for Psoriasis and the Prospects for Coordination on Treatment in Nagano Prefecture. The Nishinihon Journal of Dermatology. 75(4). 346–349. 1 indexed citations

16.

Ohashi, Atsuko, et al.. (2011). Cutaneous angiosarcoma of the leg showing radiation sensitivity. Australasian Journal of Dermatology. 53(3). e51–3. 2 indexed citations

17.

Sugawara, M., et al.. (2008). A Case of Pencil-Core Granuloma. The Nishinihon Journal of Dermatology. 70(3). 265–268.

18.

Okuyama, Ryuhei, et al.. (2006). A Case of Contact Dermatitis due to Fiblast Spray, a Product of Basic Fibroblast Growth Factor. The Nishinihon Journal of Dermatology. 68(3). 248–250. 1 indexed citations

19.

Okuyama, Ryuhei, Claudio Talora, Eisaku Ogawa, et al.. (2004). High Commitment of Embryonic Keratinocytes to Terminal Differentiation through a Notch1-caspase 3 Regulatory Mechanism. Developmental Cell. 6(4). 551–562. 160 indexed citations

20.

Terui, Tadashi, Ryuhei Okuyama, & Hachiro Tagami. (2001). Molecular events occurring behind ultraviolet-induced skin inflammation. Current Opinion in Allergy and Clinical Immunology. 1(5). 461–467. 13 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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