Yutaka Kōyama

3.9k total citations
125 papers, 3.3k citations indexed

About

Yutaka Kōyama is a scholar working on Molecular Biology, Cellular and Molecular Neuroscience and Neurology. According to data from OpenAlex, Yutaka Kōyama has authored 125 papers receiving a total of 3.3k indexed citations (citations by other indexed papers that have themselves been cited), including 54 papers in Molecular Biology, 49 papers in Cellular and Molecular Neuroscience and 34 papers in Neurology. Recurrent topics in Yutaka Kōyama's work include Neuroscience and Neuropharmacology Research (29 papers), Neuroinflammation and Neurodegeneration Mechanisms (25 papers) and Nitric Oxide and Endothelin Effects (19 papers). Yutaka Kōyama is often cited by papers focused on Neuroscience and Neuropharmacology Research (29 papers), Neuroinflammation and Neurodegeneration Mechanisms (25 papers) and Nitric Oxide and Endothelin Effects (19 papers). Yutaka Kōyama collaborates with scholars based in Japan, United Kingdom and United States. Yutaka Kōyama's co-authors include Shotaro Michinaga, Akemichi Baba, Toshio Matsuda, Hitoshi Hashimoto, Akemichi Baba, Shogo Tokuyama, A. Baba, Kazuo Nakamoto, Yukio Ago and James E. Goldman and has published in prestigious journals such as Journal of Biological Chemistry, SHILAP Revista de lepidopterología and PLoS ONE.

In The Last Decade

Yutaka Kōyama

120 papers receiving 3.3k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Yutaka Kōyama Japan 32 1.4k 1.2k 784 654 419 125 3.3k
Eiichiro Nagata Japan 30 2.1k 1.5× 1.2k 1.0× 489 0.6× 588 0.9× 485 1.2× 117 4.0k
Mireille Bélanger Canada 17 1.3k 0.9× 890 0.8× 926 1.2× 930 1.4× 355 0.8× 17 3.4k
Stefania Ceruti Italy 40 1.5k 1.0× 1.1k 0.9× 961 1.2× 553 0.8× 236 0.6× 93 4.2k
Seok Joon Won United States 34 1.0k 0.7× 879 0.7× 881 1.1× 569 0.9× 402 1.0× 58 3.1k
Hirokazu Ohtaki Japan 31 1.1k 0.8× 1.2k 1.0× 741 0.9× 380 0.6× 293 0.7× 100 3.2k
Marc Gleichmann United States 27 2.0k 1.4× 909 0.8× 580 0.7× 1.2k 1.9× 341 0.8× 40 3.9k
Susan D. Kraner United States 24 2.2k 1.5× 1.2k 1.0× 538 0.7× 660 1.0× 225 0.5× 48 3.4k
Andrew A. Parsons United Kingdom 37 1.2k 0.8× 912 0.8× 840 1.1× 972 1.5× 334 0.8× 79 3.9k
Carole Escartin France 28 1.2k 0.8× 1.3k 1.1× 1.2k 1.6× 704 1.1× 406 1.0× 47 3.2k
Dena B. Dubal United States 38 1.2k 0.9× 1.2k 1.0× 879 1.1× 1.0k 1.6× 311 0.7× 78 5.4k

Countries citing papers authored by Yutaka Kōyama

Since Specialization
Citations

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

Fields of papers citing papers by Yutaka Kōyama

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Yutaka Kōyama

This figure shows the co-authorship network connecting the top 25 collaborators of Yutaka Kōyama. A scholar is included among the top collaborators of Yutaka Kōyama 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 Yutaka Kōyama. Yutaka Kōyama 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.
Kōyama, Yutaka, Shigeru Hishinuma, Yasuhiro Ogawa, et al.. (2024). Endothelin‐1 increases Na+‐K+‐2Cl− cotransporter‐1 expression in cultured astrocytes and in traumatic brain injury model: An involvement of HIF1α activation. Glia. 72(12). 2231–2246. 1 indexed citations
2.
3.
Izumi, Yasuhiko, Yuki Takada‐Takatori, Akinori Akaike, et al.. (2020). Protective effects of Nrf2–ARE activator on dopaminergic neuronal loss in Parkinson disease model mice: Possible involvement of heme oxygenase-1. Neuroscience Letters. 736. 135268–135268. 25 indexed citations
4.
Kōyama, Yutaka, et al.. (2019). Endothelin-1 stimulates expression of cyclin D1 and S-phase kinase–associated protein 2 by activating the transcription factor STAT3 in cultured rat astrocytes. Journal of Biological Chemistry. 294(11). 3920–3933. 17 indexed citations
5.
Nakamoto, Kazuo, Fuka Aizawa, Takuya Yamashita, et al.. (2017). Dysfunctional GPR40/FFAR1 signaling exacerbates pain behavior in mice. PLoS ONE. 12(7). e0180610–e0180610. 26 indexed citations
6.
Nakamoto, Kazuo, et al.. (2017). Astrocyte Activation in Locus Coeruleus Is Involved in Neuropathic Pain Exacerbation Mediated by Maternal Separation and Social Isolation Stress. Frontiers in Pharmacology. 8. 401–401. 25 indexed citations
7.
Kōyama, Yutaka & Shotaro Michinaga. (2014). Roles of astroglia in the regulations of brain vascular permeability. Folia Pharmacologica Japonica. 144(3). 115–119. 1 indexed citations
8.
Kōyama, Yutaka. (2014). Signaling molecules regulating phenotypic conversions of astrocytes and glial scar formation in damaged nerve tissues. Neurochemistry International. 78. 35–42. 55 indexed citations
9.
Kōyama, Yutaka. (2013). Endothelin systems in the brain: involvement in pathophysiological responses of damaged nerve tissues. BioMolecular Concepts. 4(4). 335–347. 26 indexed citations
10.
Kōyama, Yutaka & Shotaro Michinaga. (2012). Regulations of Astrocytic Functions by Endothelins: Roles in the Pathophysiological Responses of Damaged Brains. Journal of Pharmacological Sciences. 118(4). 401–407. 35 indexed citations
11.
Hosoi, Rie, et al.. (2008). Characterization of 14C-acetate uptake in cultured rat astrocytes. Brain Research. 1253. 69–73. 14 indexed citations
12.
Kōyama, Yutaka, et al.. (2003). Endothelin-1 stimulates glial cell line-derived neurotrophic factor expression in cultured rat astrocytes. Biochemical and Biophysical Research Communications. 303(4). 1101–1105. 29 indexed citations
13.
Sakaue, Masaki, et al.. (2002). The 5-HT1A receptor agonist MKC-242 increases the exploratory activity of mice in the elevated plus-maze. European Journal of Pharmacology. 458(1-2). 141–144. 12 indexed citations
14.
Kōyama, Yutaka, Yasuhiro Yoshioka, Hitoshi Hashimoto, Tomoki Matsuda, & A. Baba. (2000). Endothelins increase tyrosine phosphorylation of astrocytic focal adhesion kinase and paxillin accompanied by their association with cytoskeletal components. Neuroscience. 101(1). 219–227. 21 indexed citations
15.
Kōyama, Yutaka, et al.. (1999). Endothelins Stimulate Expression of Cyclooxygenase 2 in Rat Cultured Astrocytes. Journal of Neurochemistry. 73(3). 1004–1011. 42 indexed citations
16.
Kōyama, Yutaka & Akemichi Baba. (1996). Endothelin-induced cytoskeletal actin re-organization in cultured astrocytes: Inhibition by C3 ADP-ribosyltransferase. Glia. 16(4). 342–350. 45 indexed citations
17.
Kōyama, Yutaka, et al.. (1993). Endothelins modulate dibutyryl cAMP-induced stellation of cultured astrocytes. Brain Research. 600(1). 81–88. 48 indexed citations
18.
Ishibashi, T., et al.. (1992). ENHANCEMENT OF CHLORIDE-DEPENDENT GLUTAMATE TRANSPORT BY GLUCOSE-OXYGEN DEPRIVATION. Journal of Neurochemistry. 59. 24. 1 indexed citations
19.
Kōyama, Yutaka, Tadashi Ishibashi, & Akemichi Baba. (1992). L-Glutamate-Induced Swelling of Cultured Astrocytes. Advances in experimental medicine and biology. 315. 375–380. 3 indexed citations
20.
Baba, Akemichi, et al.. (1990). Inhibition of (3H)glutamate release by Zn2+ in rat hippocampal slices.. Journal of Pharmacobio-Dynamics. 13(5). 321–326. 4 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.

Explore authors with similar magnitude of impact

Breakdown of academic impact, for papers by Eiichiro Nagata Breakdown of academic impact, for papers by Mireille Bélanger Breakdown of academic impact, for papers by Stefania Ceruti Breakdown of academic impact, for papers by Seok Joon Won Breakdown of academic impact, for papers by Hirokazu Ohtaki Breakdown of academic impact, for papers by Marc Gleichmann Breakdown of academic impact, for papers by Susan D. Kraner Breakdown of academic impact, for papers by Andrew A. Parsons Breakdown of academic impact, for papers by Carole Escartin Breakdown of academic impact, for papers by Dena B. Dubal
Rankless by CCL
2026