Koichi Okamura

626 total citations
43 papers, 473 citations indexed

About

Koichi Okamura is a scholar working on Rheumatology, Surgery and Epidemiology. According to data from OpenAlex, Koichi Okamura has authored 43 papers receiving a total of 473 indexed citations (citations by other indexed papers that have themselves been cited), including 22 papers in Rheumatology, 18 papers in Surgery and 7 papers in Epidemiology. Recurrent topics in Koichi Okamura's work include Rheumatoid Arthritis Research and Therapies (19 papers), Musculoskeletal synovial abnormalities and treatments (6 papers) and Shoulder Injury and Treatment (6 papers). Koichi Okamura is often cited by papers focused on Rheumatoid Arthritis Research and Therapies (19 papers), Musculoskeletal synovial abnormalities and treatments (6 papers) and Shoulder Injury and Treatment (6 papers). Koichi Okamura collaborates with scholars based in Japan, Vietnam and United States. Koichi Okamura's co-authors include Yukio Yonemoto, Kenji Takagishi, Yoshito Tsushima, Tsutomu Kobayashi, Tetsuya Kaneko, T Shirakusa, Hirotaka Chikuda, Yukiko Arisaka, Noboru Oriuchi and Hidejiro Yokoo and has published in prestigious journals such as Journal of Biological Chemistry, Scientific Reports and British Journal of Cancer.

In The Last Decade

Koichi Okamura

42 papers receiving 459 citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Koichi Okamura Japan 14 209 147 81 64 60 43 473
Marine Forien France 13 246 1.2× 128 0.9× 64 0.8× 106 1.7× 33 0.6× 42 476
Michele Conceição Pereira Brazil 12 110 0.5× 91 0.6× 127 1.6× 41 0.6× 46 0.8× 20 443
Xianghe Xu China 16 137 0.7× 158 1.1× 276 3.4× 48 0.8× 43 0.7× 35 562
Erkan Kılıç Türkiye 14 276 1.3× 88 0.6× 79 1.0× 173 2.7× 26 0.4× 31 472
Masaki Matsuura Japan 6 309 1.5× 143 1.0× 48 0.6× 51 0.8× 21 0.3× 9 427
M. Covelli Italy 13 222 1.1× 70 0.5× 33 0.4× 58 0.9× 24 0.4× 30 396
C Charpin France 12 139 0.7× 65 0.4× 48 0.6× 76 1.2× 26 0.4× 25 409
I. Bertoldi Italy 11 248 1.2× 117 0.8× 54 0.7× 23 0.4× 43 0.7× 29 445
Antonella Adinolfi Italy 12 302 1.4× 75 0.5× 37 0.5× 88 1.4× 17 0.3× 40 469
Jun Xia China 13 70 0.3× 183 1.2× 99 1.2× 23 0.4× 41 0.7× 40 415

Countries citing papers authored by Koichi Okamura

Since Specialization
Citations

This map shows the geographic impact of Koichi Okamura'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 Koichi Okamura with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Koichi Okamura more than expected).

Fields of papers citing papers by Koichi Okamura

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Koichi Okamura. 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 Koichi Okamura. The network helps show where Koichi Okamura may publish in the future.

Co-authorship network of co-authors of Koichi Okamura

This figure shows the co-authorship network connecting the top 25 collaborators of Koichi Okamura. A scholar is included among the top collaborators of Koichi Okamura 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 Koichi Okamura. Koichi Okamura is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
2.
Okamura, Koichi, Makoto Inoue, Hiroshi Inoue, et al.. (2022). Anti-drug antibodies and rheumatoid factor level in patients with rheumatoid arthritis using the infliximab biosimilar CT-P13. BMC Rheumatology. 6(1). 74–74. 1 indexed citations
3.
Okamura, Koichi, et al.. (2021). Do biologic therapies reduce aortic inflammation in rheumatoid arthritis patients?. Arthritis Research & Therapy. 23(1). 206–206. 4 indexed citations
4.
Yonemoto, Yukio, Koichi Okamura, Tetsuya Kaneko, et al.. (2020). Does periodontitis affect the treatment response of biologics in the treatment of rheumatoid arthritis?. Arthritis Research & Therapy. 22(1). 178–178. 9 indexed citations
5.
Okamura, Koichi, Yukio Yonemoto, Hitoshi Shitara, et al.. (2019). Shoulder tenderness was associated with the inflammatory changes on magnetic resonance imaging in patients with rheumatoid arthritis. Scientific Reports. 9(1). 19599–19599. 2 indexed citations
6.
Kaneko, Tetsuya, et al.. (2019). Effects of denosumab on bone mineral density and bone turnover markers in rheumatoid arthritis patients switching from bisphosphonates. Journal of Experimental Orthopaedics. 6(1). 41–41. 9 indexed citations
7.
Ichinose, Tsuyoshi, Yoichi Iizuka, Koichi Okamura, et al.. (2017). Osteopenia and the physical function in Japanese patients with schizophrenia. Archives of Osteoporosis. 12(1). 93–93. 2 indexed citations
8.
Okamura, Koichi, et al.. (2016). Prediction of Large Joint Destruction in Patients With Rheumatoid Arthritis Using 18F-FDG PET/CT and Disease Activity Score. Medicine. 95(7). e2841–e2841. 28 indexed citations
9.
Yonemoto, Yukio, Koichi Okamura, K. Takeuchi, et al.. (2015). Comparison of golimumab 100-mg monotherapy to golimumab 50 mg plus methotrexate in patients with rheumatoid arthritis: Results from a multicenter, cohort study. Modern Rheumatology. 26(1). 24–28. 6 indexed citations
10.
Yonemoto, Yukio, Koichi Okamura, K. Takeuchi, et al.. (2015). [18F]fluorodeoxyglucose uptake as a predictor of large joint destruction in patients with rheumatoid arthritis. Rheumatology International. 36(1). 109–115. 16 indexed citations
11.
Okamura, Koichi, Tsutomu Kobayashi, Atsushi Yamamoto, et al.. (2015). Shoulder pain and intra-articular interleukin-8 levels in patients with rotator cuff tears. International Journal of Rheumatic Diseases. 20(2). 177–181. 15 indexed citations
12.
Sasaki, Tsuyoshi, et al.. (2014). Pelvic peritonitis during biologic therapy for rheumatoid arthritis: a case report and review of the literature. Journal of the Korean Physical Society. 3(1). 1–4. 11 indexed citations
13.
Okamura, Koichi, et al.. (2014). Efficacy of the clinical use of iguratimod therapy in patients with rheumatoid arthritis. Modern Rheumatology. 25(2). 235–240. 23 indexed citations
14.
Okamura, Koichi, et al.. (2014). Efficacy at 52 weeks of daily clinical use of iguratimod in patients with rheumatoid arthritis. Modern Rheumatology. 25(4). 534–539. 22 indexed citations
15.
Okamura, Koichi, et al.. (2014). Evaluation of tocilizumab therapy in patients with rheumatoid arthritis based on FDG-PET/CT. BMC Musculoskeletal Disorders. 15(1). 393–393. 27 indexed citations
16.
Sasaki, Tsuyoshi, et al.. (2014). Pelvic peritonitis during biologic therapy for rheumatoid arthritis: a case report and review of the literature. SpringerPlus. 3(1). 567–567. 1 indexed citations
17.
Okamura, Koichi, Yukio Yonemoto, Yukiko Arisaka, et al.. (2012). The assessment of biologic treatment in patients with rheumatoid arthritis using FDG-PET/CT. Lara D. Veeken. 51(8). 1484–1491. 51 indexed citations
18.
Sugimoto, Hiroyuki, Koichi Okamura, Sayaka Sugimoto, et al.. (2005). Sp1 Is a Co-activator with Ets-1, and Net Is an Important Repressor of the Transcription of CTP:Phosphocholine Cytidylyltransferase α. Journal of Biological Chemistry. 280(49). 40857–40866. 23 indexed citations
19.
Aoki, Masashi, Takashi Suzuki, T. Moriya, et al.. (2004). Expression of EBAG9/RCAS1 is associated with advanced disease in human epithelial ovarian cancer. British Journal of Cancer. 90(11). 2197–2202. 39 indexed citations
20.
Okamura, Koichi, et al.. (1975). Isolation and electrophoretic study on Mallory bodies from the livers of alcoholic cirrhosis.. Munich Personal RePEc Archive (Ludwig Maximilian University of Munich). 33(2). 193–9. 14 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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