Kei Takayama

1.7k total citations
74 papers, 991 citations indexed

About

Kei Takayama is a scholar working on Ophthalmology, Radiology, Nuclear Medicine and Imaging and Molecular Biology. According to data from OpenAlex, Kei Takayama has authored 74 papers receiving a total of 991 indexed citations (citations by other indexed papers that have themselves been cited), including 52 papers in Ophthalmology, 26 papers in Radiology, Nuclear Medicine and Imaging and 13 papers in Molecular Biology. Recurrent topics in Kei Takayama's work include Retinal Diseases and Treatments (38 papers), Glaucoma and retinal disorders (20 papers) and Ocular Diseases and Behçet’s Syndrome (15 papers). Kei Takayama is often cited by papers focused on Retinal Diseases and Treatments (38 papers), Glaucoma and retinal disorders (20 papers) and Ocular Diseases and Behçet’s Syndrome (15 papers). Kei Takayama collaborates with scholars based in Japan, China and Switzerland. Kei Takayama's co-authors include Hiroki Kaneko, Hiroko Terasaki, Keiko Kataoka, Yasuki Ito, Masaru Takeuchi, Taichi Tsunekawa, Fuxiang Ye, Hideyuki Shimizu, Yosuke Nagasaka and Ayana Suzumura and has published in prestigious journals such as Circulation, PLoS ONE and Diabetes.

In The Last Decade

Kei Takayama

71 papers receiving 971 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Kei Takayama Japan 18 646 406 258 87 69 74 991
Brian J. Song United States 19 690 1.1× 508 1.3× 192 0.7× 40 0.5× 39 0.6× 50 1.0k
Zhenyu Dong Japan 14 275 0.4× 182 0.4× 172 0.7× 41 0.5× 32 0.5× 38 563
Zhongming Yang China 10 1.2k 1.8× 838 2.1× 193 0.7× 30 0.3× 43 0.6× 23 1.5k
Muh‐Shy Chen Taiwan 23 804 1.2× 642 1.6× 291 1.1× 17 0.2× 62 0.9× 59 1.2k
Yo‐Chen Chang Taiwan 17 401 0.6× 297 0.7× 194 0.8× 17 0.2× 50 0.7× 53 763
Gaurang Patel United States 15 217 0.3× 174 0.4× 209 0.8× 58 0.7× 18 0.3× 24 606
Alejandra Daruich France 23 2.0k 3.1× 1.2k 3.0× 500 1.9× 35 0.4× 128 1.9× 83 2.4k
Manuel Falcão Portugal 20 1.2k 1.9× 879 2.2× 250 1.0× 19 0.2× 51 0.7× 107 1.5k
Ryo Obata Japan 22 1.0k 1.6× 730 1.8× 353 1.4× 12 0.1× 62 0.9× 117 1.8k

Countries citing papers authored by Kei Takayama

Since Specialization
Citations

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

Fields of papers citing papers by Kei Takayama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kei Takayama

This figure shows the co-authorship network connecting the top 25 collaborators of Kei Takayama. A scholar is included among the top collaborators of Kei Takayama 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 Kei Takayama. Kei Takayama 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.
Takayama, Kei, Hiroshi Yokoyama, Takeshi Kimura, et al.. (2021). Potential bias of preoperative intravitreal anti-VEGF injection for complications of proliferative diabetic retinopathy. PLoS ONE. 16(10). e0258415–e0258415. 1 indexed citations
2.
Takayama, Kei, Masaru Takeuchi, Hiroshi Yokoyama, et al.. (2019). Outcomes of 25-Gauge Vitrectomy for Tractional and Nontractional Diabetic Macular Edema with Proliferative Diabetic Retinopathy. Journal of Ophthalmology. 2019. 1–9. 13 indexed citations
3.
Sato, Tomohito, et al.. (2019). Comprehensive expression patterns of inflammatory cytokines in aqueous humor of patients with neovascular age-related macular degeneration. Scientific Reports. 9(1). 19447–19447. 27 indexed citations
4.
Kanda, Koji, et al.. (2018). Chronic postcataract endophthalmitis caused by <em>Penicillium</em> species in an immunocompetent patient. International Medical Case Reports Journal. Volume 11. 259–262. 3 indexed citations
5.
Matsuura, T., Kei Takayama, Hiroki Kaneko, et al.. (2017). Nutritional Supplementation Inhibits the Increase in Serum Malondialdehyde in Patients with Wet Age‐Related Macular Degeneration. Oxidative Medicine and Cellular Longevity. 2017(1). 9548767–9548767. 13 indexed citations
6.
Tsunekawa, Taichi, Hiroki Kaneko, Kei Takayama, et al.. (2017). Correlation between miR-148 Expression in Vitreous and Severity of Rhegmatogenous Retinal Detachment. BioMed Research International. 2017. 1–8. 11 indexed citations
7.
Ye, Fuxiang, Hiroki Kaneko, Yumi Hayashi, et al.. (2016). Malondialdehyde induces autophagy dysfunction and VEGF secretion in the retinal pigment epithelium in age-related macular degeneration. Free Radical Biology and Medicine. 94. 121–134. 61 indexed citations
8.
Takayama, Kei, Hiroki Kaneko, Keiko Kataoka, et al.. (2016). Nuclear Factor (Erythroid‐Derived)‐Related Factor 2‐Associated Retinal Pigment Epithelial Cell Protection under Blue Light‐Induced Oxidative Stress. Oxidative Medicine and Cellular Longevity. 2016(1). 8694641–8694641. 24 indexed citations
9.
Takayama, Kei, Hiroki Kaneko, Shinji Ueno, et al.. (2016). EVALUATION OF SHORT-TERM OUTCOMES OF INTRAVITREAL AFLIBERCEPT INJECTIONS FOR AGE-RELATED MACULAR DEGENERATION USING FOCAL MACULAR ELECTRORETINOGRAPHY. Retina. 37(3). 553–560. 5 indexed citations
10.
Takayama, Kei, Hiroki Kaneko, Keiko Kataoka, et al.. (2016). Short-term focal macular electroretinogram of eyes treated by aflibercept & photodynamic therapy for polypoidal choroidal vasculopathy. Graefe s Archive for Clinical and Experimental Ophthalmology. 255(3). 449–455. 9 indexed citations
11.
Takayama, Kei, et al.. (2015). Evaluation of Microincision Vitrectomy Surgery Using Wide-Viewing System for Complications With Ocular Sarcoidosis. Medicine. 94(7). e559–e559. 10 indexed citations
12.
Kaneko, Hiroki, Fuxiang Ye, Yosuke Nagasaka, et al.. (2014). Interleukin-18 Induces Retinal Pigment Epithelium Degeneration in Mice. Investigative Ophthalmology & Visual Science. 55(10). 6673–6673. 42 indexed citations
13.
Takayama, Kei, et al.. (2013). A case of sebaceous adenoma of the eyelid showing excessively rapid growth. Clinical ophthalmology. 7. 667–667. 7 indexed citations
14.
Yonetsu, Taishi, Tsunekazu Kakuta, Tetsumin Lee, et al.. (2009). Abstract 4188: The Assessment of Acute Injuries and Chronic Intimal Thickening of the Radial Artery After Transradial Intervention by Optical Coherence Tomography. Circulation. 120. 1 indexed citations
15.
Wada, Yuko, Jun‐ichi Suzuki, M Kawauchi, et al.. (2001). Early growth-response factor 1 and basic transcriptional element-binding protein 2 expression in cardiac allografts. The Journal of Heart and Lung Transplantation. 20(5). 590–594. 10 indexed citations
16.
Suzuki, Junichi, M Kawauchi, Yuko Wada, et al.. (2000). Expression of membrane-type 1 matrix metalloproteinase in coronary vessels of allotransplanted primate hearts. The Journal of Heart and Lung Transplantation. 19(12). 1193–1198. 14 indexed citations
17.
Takahashi, Wataru, et al.. (2000). Inducible Nitric Oxide-Mediated Myocardial Apoptosis Contributes to Graft Failure during Acute Cardiac Allograft Rejection in Mice.. Japanese Heart Journal. 41(4). 493–506. 8 indexed citations
18.
Wada, Yuko, Jun Suzuki, Kei Takayama, et al.. (2000). Expression of the transcriptional factor Egr-1/BTEB2 in cardiac xenograft vascular remodeling. Transplantation Proceedings. 32(5). 1089–1091. 2 indexed citations
19.
Kawamura, Masataka, et al.. (1984). [Two cases of exercise-induced ventricular tachycardia--catecholamine-induced ventricular tachycardia].. PubMed. 32(10). 1071–7. 1 indexed citations
20.
Takayama, Kei, et al.. (1961). [Electron microscopical observations on staphyloma corneae].. PubMed. 12. 779–82. 1 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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