Takahisa Koga

789 total citations
24 papers, 651 citations indexed

About

Takahisa Koga is a scholar working on Molecular Biology, Ophthalmology and Radiology, Nuclear Medicine and Imaging. According to data from OpenAlex, Takahisa Koga has authored 24 papers receiving a total of 651 indexed citations (citations by other indexed papers that have themselves been cited), including 14 papers in Molecular Biology, 11 papers in Ophthalmology and 7 papers in Radiology, Nuclear Medicine and Imaging. Recurrent topics in Takahisa Koga's work include Glaucoma and retinal disorders (8 papers), Retinal Diseases and Treatments (5 papers) and Retinal Development and Disorders (4 papers). Takahisa Koga is often cited by papers focused on Glaucoma and retinal disorders (8 papers), Retinal Diseases and Treatments (5 papers) and Retinal Development and Disorders (4 papers). Takahisa Koga collaborates with scholars based in Japan and United States. Takahisa Koga's co-authors include Hidenobu Tanihara, Jianbo Yue, Akira Hirata, Yasuya Inomata, Masaru Inatani, Masataka Mori, Xiang Shen, Tomomi Gotoh, Bum‐Chan Park and Akira Kimura and has published in prestigious journals such as Journal of Biological Chemistry, Brain Research and Biochemical and Biophysical Research Communications.

In The Last Decade

Takahisa Koga

22 papers receiving 633 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Takahisa Koga Japan 16 356 301 161 145 68 24 651
Janice E Martin United States 6 467 1.3× 402 1.3× 178 1.1× 123 0.8× 51 0.8× 10 782
Kimberly A. Toops United States 13 242 0.7× 302 1.0× 73 0.5× 69 0.5× 49 0.7× 18 500
Yasuya Inomata Japan 17 511 1.4× 373 1.2× 320 2.0× 75 0.5× 69 1.0× 27 822
Tomokazu Fujimoto Japan 16 399 1.1× 234 0.8× 166 1.0× 109 0.8× 26 0.4× 36 658
Elke Lu ̈tjen-Drecoll Germany 13 595 1.7× 328 1.1× 226 1.4× 69 0.5× 28 0.4× 13 768
Carol A. Rasmussen United States 19 594 1.7× 484 1.6× 275 1.7× 51 0.4× 40 0.6× 50 951
Bo Ma China 19 254 0.7× 333 1.1× 153 1.0× 38 0.3× 39 0.6× 56 762
W Noske Germany 12 351 1.0× 225 0.7× 126 0.8× 45 0.3× 129 1.9× 30 619
A W de Kater United States 12 663 1.9× 215 0.7× 346 2.1× 105 0.7× 56 0.8× 15 825
J D Lindsey United States 7 292 0.8× 133 0.4× 87 0.5× 84 0.6× 37 0.5× 7 500

Countries citing papers authored by Takahisa Koga

Since Specialization
Citations

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

Fields of papers citing papers by Takahisa Koga

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Takahisa Koga

This figure shows the co-authorship network connecting the top 25 collaborators of Takahisa Koga. A scholar is included among the top collaborators of Takahisa Koga 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 Takahisa Koga. Takahisa Koga 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.
Fukuda, Kenji, et al.. (2021). Intracerebral hemorrhage due to vasculitis following COVID-19 vaccination: a case report. Acta Neurochirurgica. 164(2). 543–547. 19 indexed citations
2.
Koga, Takahisa, et al.. (2015). [Factors Affecting Uncorrected Visual Acuity following Implantation of Apodized Diffractive Intraocular Lenses].. PubMed. 119(12). 846–54. 3 indexed citations
3.
Koga, Takahisa, Xiang Shen, Jeong‐Seok Park, et al.. (2009). Differential Effects of Myocilin and Optineurin, Two Glaucoma Genes, on Neurite Outgrowth. American Journal Of Pathology. 176(1). 343–352. 23 indexed citations
4.
Inatani, Masaru, Keiichiro Iwao, Toshihiro Inoue, et al.. (2008). Long-term Relationship Between Intraocular Pressure and Visual Field Loss in Primary Open-angle Glaucoma. Journal of Glaucoma. 17(4). 275–279. 16 indexed citations
5.
Iwao, Keiichiro, et al.. (2007). Frequency and Risk Factors for Intraocular Pressure Elevation After Posterior Sub-Tenon Capsule Triamcinolone Acetonide Injection. Journal of Glaucoma. 16(2). 251–256. 44 indexed citations
6.
Koga, Takahisa, et al.. (2007). Stability of the Central Visual Field After Modern Trabeculectomy Techniques in Eyes with Advanced Glaucoma. Japanese Journal of Ophthalmology. 51(2). 116–120. 2 indexed citations
7.
Shen, Xiang, Takahisa Koga, Bum‐Chan Park, Nirmala SundarRaj, & Jianbo Yue. (2007). Rho GTPase and cAMP/Protein Kinase A Signaling Mediates Myocilin-induced Alterations in Cultured Human Trabecular Meshwork Cells. Journal of Biological Chemistry. 283(1). 603–612. 47 indexed citations
8.
Sakai, Hiroshi, Xiang Shen, Takahisa Koga, et al.. (2007). Mitochondrial association of myocilin, product of a glaucoma gene, in human trabecular meshwork cells. Journal of Cellular Physiology. 213(3). 775–784. 29 indexed citations
9.
Koga, Takahisa, et al.. (2005). Rho-associated protein kinase inhibitor, Y-27632, induces alterations in adhesion, contraction and motility in cultured human trabecular meshwork cells. Experimental Eye Research. 82(3). 362–370. 105 indexed citations
10.
Hashizume, Kouhei, Yukihiko Mashima, Yuichiro Ohtake, et al.. (2005). Genetic Polymorphisms in the Angiotensin II Receptor Gene and Their Association with Open-Angle Glaucoma in a Japanese Population. Investigative Ophthalmology & Visual Science. 46(6). 1993–1993. 35 indexed citations
11.
Koga, Takahisa, Masaru Inatani, Akira Hirata, et al.. (2005). Expression of a Chondroitin Sulfate Proteoglycan, Versican (PG-M), During Development of Rat Cornea. Current Eye Research. 30(6). 455–463. 15 indexed citations
12.
Koga, Takahisa, Yasuya Inomata, Seiichi Oyadomari, et al.. (2005). NMDA‐induced retinal injury is mediated by an endoplasmic reticulum stress‐related protein, CHOP/GADD153. Journal of Neurochemistry. 96(1). 43–52. 53 indexed citations
13.
Kawaji, Takahiro, Akira Hirata, Yasuya Inomata, Takahisa Koga, & Hidenobu Tanihara. (2004). Morphological damage in rabbit retina caused by subretinal injection of indocyanine green. Graefe s Archive for Clinical and Experimental Ophthalmology. 242(2). 158–164. 37 indexed citations
14.
Koga, Takahisa, Masaru Inatani, Akira Hirata, et al.. (2003). Expression of glycosaminoglycans during development of the rat retina. Current Eye Research. 27(2). 75–83. 7 indexed citations
15.
Koga, Takahisa, Eiko Ando, Akira Hirata, et al.. (2003). Vitreous opacities and outcome of vitreous surgery in patients with familial amyloidotic polyneuropathy. American Journal of Ophthalmology. 135(2). 188–193. 50 indexed citations
16.
Inomata, Yasuya, Akira Hirata, Takahisa Koga, et al.. (2003). Lens epithelium-derived growth factor: neuroprotection on rat retinal damage induced by N-methyl-d-aspartate. Brain Research. 991(1-2). 163–170. 15 indexed citations
17.
Koga, Takahisa, et al.. (2003). Induction of citrulline–nitric oxide (NO) cycle enzymes and NO production in immunostimulated rat RPE-J cells. Experimental Eye Research. 76(1). 15–21. 23 indexed citations
18.
Inomata, Yasuya, et al.. (2003). Neuroprotective effects of interleukin-6 on NMDA-induced rat retinal damage. Biochemical and Biophysical Research Communications. 302(2). 226–232. 39 indexed citations
19.
Koga, Takahisa, Tomomi Gotoh, Akira Hirata, et al.. (2002). Coinduction of Nitric Oxide Synthase and Arginine Metabolic Enzymes in Endotoxin-induced Uveitis Rats. Experimental Eye Research. 75(6). 659–667. 33 indexed citations
20.
Tanihara, Hidenobu, et al.. (2002). Proteoglycans in the Eye. Cornea. 21(Supplement 2). S62–S69. 40 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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