Koji Funahashi

801 total citations
30 papers, 327 citations indexed

About

Koji Funahashi is a scholar working on Rheumatology, Surgery and Hematology. According to data from OpenAlex, Koji Funahashi has authored 30 papers receiving a total of 327 indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Rheumatology, 9 papers in Surgery and 6 papers in Hematology. Recurrent topics in Koji Funahashi's work include Rheumatoid Arthritis Research and Therapies (24 papers), Autoimmune and Inflammatory Disorders Research (6 papers) and Systemic Lupus Erythematosus Research (5 papers). Koji Funahashi is often cited by papers focused on Rheumatoid Arthritis Research and Therapies (24 papers), Autoimmune and Inflammatory Disorders Research (6 papers) and Systemic Lupus Erythematosus Research (5 papers). Koji Funahashi collaborates with scholars based in Japan. Koji Funahashi's co-authors include Naoki Ishiguro, Toshihisa Kojima, Shuji Asai, Y. Hirano, Masatoshi Hayashi, Nobunori Takahashi, Yasuhide Kanayama, Tomone Shioura, Kenya Terabe and Masayo Kojima and has published in prestigious journals such as Scientific Reports, Biochemical and Biophysical Research Communications and Arthritis Care & Research.

In The Last Decade

Koji Funahashi

30 papers receiving 316 citations

Peers

Countries citing papers authored by Koji Funahashi

Since Specialization

Citations

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

Fields of papers citing papers by Koji Funahashi

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koji Funahashi

This figure shows the co-authorship network connecting the top 25 collaborators of Koji Funahashi. A scholar is included among the top collaborators of Koji Funahashi 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 Koji Funahashi. Koji Funahashi 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

#	Work	Indexed citations
1	Relationship between frailty and methotrexate discontinuation due to adverse events in rheumatoid arthritis patients 2023 ·Clinical Rheumatology ·Yasumori Sobue, Mochihito Suzuki, Y. Ohashi, (unknown), Nobuyuki Okui, Koji Funahashi, Hisato Ishikawa, Hidenori Inoue, Shuji Asai, Kenya Terabe, Kenji Kishimoto, (unknown), (unknown), (unknown), Shiro Imagama	3
2	Validation of grip strength as a measure of frailty in rheumatoid arthritis 2022 ·Scientific Reports ·Yasumori Sobue, Mochihito Suzuki, Y. Ohashi, (unknown), Nobuyuki Okui, Koji Funahashi, Hisato Ishikawa, Hidenori Inoue, Masayo Kojima, Shuji Asai, Kenya Terabe, Kenji Kishimoto, (unknown), (unknown), Shiro Imagama, Toshihisa Kojima	6
3	Association between seropositivity and discontinuation of tumor necrosis factor inhibitors due to ineffectiveness in rheumatoid arthritis 2019 ·Clinical Rheumatology ·Yoshikazu Ogawa, Nobunori Takahashi, Atsushi Kaneko, Y. Hirano, Yasuhide Kanayama, Yuichiro Yabe, Takeshi Oguchi, Takayoshi Fujibayashi, Hideki Takagi, Masahiro Hanabayashi, Koji Funahashi, Masatoshi Hayashi, Seiji Tsuboi, Shuji Asai, Nobuyuki Asai, Takuya Matsumoto, Yasumori Sobue, Naoki Ishiguro, Toshihisa Kojima	15
4	Relationship between rheumatoid arthritis and locomotive syndrome: validation of the 25-question Geriatric Locomotive Function Scale in patients with rheumatoid arthritis. 2019 ·PubMed ·Yasumori Sobue, Toshihisa Kojima, Koji Funahashi, Nobuyuki Okui, Masanori Mizuno, Nobunori Takahashi, Shuji Asai, Nobuyuki Asai, Takuya Matsumoto, (unknown), Mochihito Suzuki, Naoki Ishiguro	4
5	Target setting for lower limb joint surgery using the Timed Up and Go test in patients with rheumatoid arthritis: A prospective cohort study 2018 ·International Journal of Rheumatic Diseases ·Toshihisa Kojima, Hajime Ishikawa, Sakae Tanaka, Nobuhiko Haga, Keiichiro Nishida, Masao Yukioka, Jun Hashimoto, Hisaaki Miyahara, Yasuo Niki, Tomoatsu Kimura, Hiromi Oda, Shuji Asai, Koji Funahashi, Masayo Kojima, Naoki Ishiguro	6
6	Super-resolution method and its application to medical image processing 2017 ·(unknown), (unknown), Tomio Goto, Satoshi Hirano, Koji Funahashi	10
7	High rate of improvement in serum matrix metalloproteinase-3 levels at 4 weeks predicts remission at 52 weeks in RA patients treated with adalimumab 2017 ·Modern Rheumatology ·Yosuke Hattori, Toshihisa Kojima, Atsushi Kaneko, Daihei Kida, Y. Hirano, Takayoshi Fujibayashi, Yuichiro Yabe, Takeshi Oguchi, Yasuhide Kanayama, Hiroyuki Miyake, Takefumi Kato, Hideki Takagi, Masatoshi Hayashi, Takayasu Ito, Tomone Shioura, Nobunori Takahashi, Hisato Ishikawa, Koji Funahashi, Naoki Ishiguro	10
8	Longterm Retention Rate and Risk Factors for Adalimumab Discontinuation Due To Efficacy and Safety in Japanese Patients with Rheumatoid Arthritis: An Observational Cohort Study 2016 ·The Journal of Rheumatology ·Yosuke Hattori, Toshihisa Kojima, Atsushi Kaneko, Daihei Kida, Y. Hirano, Takayoshi Fujibayashi, Kenya Terabe, Yuichiro Yabe, Hiroyuki Miyake, Takefumi Kato, Hideki Takagi, Masatoshi Hayashi, Takayasu Ito, Yasuhide Kanayama, Takeshi Oguchi, Nobunori Takahashi, Hisato Ishikawa, Koji Funahashi, Naoki Ishiguro	3
9	Concomitant Methotrexate Protects Against Total Knee Arthroplasty in Patients with Rheumatoid Arthritis Treated with Tumor Necrosis Factor Inhibitors 2015 ·The Journal of Rheumatology ·Shuji Asai, Nobunori Takahashi, Koji Funahashi, Yutaka Yoshioka, Toki Takemoto, Kenya Terabe, Nobuyuki Asai, Naoki Ishiguro, Toshihisa Kojima	10
10	Disease activity early in treatment as a predictor of future low disease activity in RA patients treated with iguratimod 2015 ·Modern Rheumatology ·Yutaka Yoshioka, Nobunori Takahashi, Atsushi Kaneko, Y. Hirano, Yasuhide Kanayama, (unknown), Hideki Takagi, Takayasu Ito, Takefumi Kato, (unknown), Koji Funahashi, Shuji Asai, Toki Takemoto, Kenya Terabe, Nobuyuki Asai, Naoki Ishiguro, Toshihisa Kojima	13
11	Drug retention rates of second biologic agents after switching from tumor necrosis factor inhibitors for rheumatoid arthritis in Japanese patients on low-dose methotrexate or without methotrexate 2014 ·Modern Rheumatology ·Tomonori Kobayakawa, Toshihisa Kojima, Nobunori Takahashi, Masatoshi Hayashi, Yuichiro Yabe, Atsushi Kaneko, Tomone Shioura, (unknown), Y. Hirano, Yasuhide Kanayama, Hiroyuki Miyake, Nobuyuki Asai, Koji Funahashi, (unknown), Masahiro Hanabayashi, Shuji Asai, Naoki Ishiguro	13
12	Clinical efficacy of abatacept, tocilizumab, and etanercept in Japanese rheumatoid arthritis patients with inadequate response to anti-TNF monoclonal antibodies 2014 ·Clinical Rheumatology ·(unknown), Nobunori Takahashi, (unknown), Hiroyuki Miyake, Yuichiro Yabe, Atsushi Kaneko, Takayasu Ito, Takeshi Oguchi, Daihei Kida, Y. Hirano, Takayoshi Fujibayashi, Fumiaki Sugiura, Masatoshi Hayashi, Koji Funahashi, Masahiro Hanabayashi, Shuji Asai, Naoki Ishiguro, Toshihisa Kojima	23
13	Alexithymia, Depression, Inflammation, and Pain in Patients With Rheumatoid Arthritis 2013 ·Arthritis Care & Research ·Masayo Kojima, Toshihisa Kojima, Sadao Suzuki, Nobunori Takahashi, Koji Funahashi, Daizo Kato, Masahiro Hanabayashi, (unknown), Shuji Asai, Naoki Ishiguro	24
14	Pneumococcal polyarticular septic arthritis after a single infusion of infliximab in a rheumatoid arthritis patient: a case report 2012 ·Journal of Medical Case Reports ·Masatoshi Hayashi, Toshihisa Kojima, Koji Funahashi, Daizo Kato, Hiroyuki Matsubara, Tomone Shioura, Yasuhide Kanayama, Y. Hirano, Masao Deguchi, (unknown), Naoki Ishiguro	2
15	Effect of total arthroplasty combined with anti-tumor necrosis factor agents in attenuating systemic disease activity in patients with rheumatoid arthritis 2012 ·Modern Rheumatology ·Masatoshi Hayashi, Toshihisa Kojima, Koji Funahashi, Daizo Kato, Hiroyuki Matsubara, Tomone Shioura, Yasuhide Kanayama, Y. Hirano, Naoki Ishiguro	12
16	Early aggressive intervention with tocilizumab for rheumatoid arthritis increases remission rate defined using a Boolean approach in clinical practice 2011 ·Modern Rheumatology ·Toshihisa Kojima, Atsushi Kaneko, Y. Hirano, Hisato Ishikawa, Hiroyuki Miyake, Hideki Takagi, Yuichiro Yabe, Takefumi Kato, Kenya Terabe, (unknown), Hiroki Tsuchiya, Tomone Shioura, Koji Funahashi, Masatoshi Hayashi, Daizo Kato, Hiroyuki Matsubara, Naoki Ishiguro	18
17	Effect of total arthroplasty combined with anti-tumor necrosis factor agents in attenuating systemic disease activity in patients with rheumatoid arthritis 2011 ·Modern Rheumatology ·Masatoshi Hayashi, Toshihisa Kojima, Koji Funahashi, Daizo Kato, Hiroyuki Matsubara, Tomone Shioura, Yasuhide Kanayama, Y. Hirano, Naoki Ishiguro	13
18	Radiographic progression of cervical lesions in patients with rheumatoid arthritis receiving infliximab treatment 2010 ·Modern Rheumatology ·Yasuhide Kanayama, Toshihisa Kojima, Y. Hirano, Tomone Shioura, Masatoshi Hayashi, Koji Funahashi, Naoki Ishiguro	14
19	Thyroid hormone non-genomically suppresses Src thereby stimulating osteocalcin expression in primary mouse calvarial osteoblasts 2009 ·Biochemical and Biophysical Research Communications ·Shuji Asai, Xia Cao, (unknown), Koji Funahashi, Naoki Ishiguro, Fukushi Kambe	8
20	Prostaglandin E2 negatively regulates AMP-activated protein kinase via protein kinase A signaling pathway 2008 ·Prostaglandins & Other Lipid Mediators ·Koji Funahashi, Xia Cao, (unknown), Yasuko Kozaki, Naoki Ishiguro, Fukushi Kambe	18

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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