Nobuyuki Koga

2.0k total citations
98 papers, 1.6k citations indexed

About

Nobuyuki Koga is a scholar working on Pharmacology, Molecular Biology and Health, Toxicology and Mutagenesis. According to data from OpenAlex, Nobuyuki Koga has authored 98 papers receiving a total of 1.6k indexed citations (citations by other indexed papers that have themselves been cited), including 25 papers in Pharmacology, 23 papers in Molecular Biology and 16 papers in Health, Toxicology and Mutagenesis. Recurrent topics in Nobuyuki Koga's work include Pharmacogenetics and Drug Metabolism (21 papers), Migraine and Headache Studies (14 papers) and Toxic Organic Pollutants Impact (11 papers). Nobuyuki Koga is often cited by papers focused on Pharmacogenetics and Drug Metabolism (21 papers), Migraine and Headache Studies (14 papers) and Toxic Organic Pollutants Impact (11 papers). Nobuyuki Koga collaborates with scholars based in Japan, United States and South Korea. Nobuyuki Koga's co-authors include Hidetoshi Yoshimura, Yasuhide Mitsumoto, Hiroaki Yoshimura, K. Oguri, Koichi Haraguchi, Yoshihisa Kato, Hisashi Kitagawa, Yasuto Itoyama, Takaaki Hayashi and K. Abe and has published in prestigious journals such as Biochemistry, Stroke and Journal of Agricultural and Food Chemistry.

In The Last Decade

Nobuyuki Koga

97 papers receiving 1.6k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Nobuyuki Koga Japan 23 470 470 293 246 242 98 1.6k
Shuso Takeda Japan 24 455 1.0× 268 0.6× 240 0.8× 175 0.7× 156 0.6× 67 1.5k
Daniel Couri United States 26 430 0.9× 319 0.7× 87 0.3× 232 0.9× 220 0.9× 77 1.8k
Elizabeth M. Laurenzana United States 23 756 1.6× 227 0.5× 261 0.9× 131 0.5× 438 1.8× 40 2.1k
Toyoko Hiroi Japan 32 825 1.8× 186 0.4× 1.2k 4.1× 188 0.8× 292 1.2× 65 2.7k
Bimla Nehru India 33 626 1.3× 561 1.2× 123 0.4× 103 0.4× 358 1.5× 97 2.7k
Mary Beth Genter United States 28 678 1.4× 494 1.1× 378 1.3× 414 1.7× 180 0.7× 82 2.3k
E. Chiesara Italy 21 307 0.7× 234 0.5× 497 1.7× 143 0.6× 97 0.4× 61 1.4k
Jarosław Dudka Poland 23 528 1.1× 123 0.3× 98 0.3× 119 0.5× 119 0.5× 129 1.9k
Joseph F. Contrera United States 32 717 1.5× 336 0.7× 290 1.0× 478 1.9× 582 2.4× 64 2.5k
Akira Takanaka Japan 27 872 1.9× 119 0.3× 842 2.9× 184 0.7× 432 1.8× 131 2.2k

Countries citing papers authored by Nobuyuki Koga

Since Specialization
Citations

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

Fields of papers citing papers by Nobuyuki Koga

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Nobuyuki Koga

This figure shows the co-authorship network connecting the top 25 collaborators of Nobuyuki Koga. A scholar is included among the top collaborators of Nobuyuki 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 Nobuyuki Koga. Nobuyuki 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.
Takeshima, Takao, et al.. (2025). Association of Migraine Comorbidities with Quality of Life, Work Productivity and Daily Activities: Survey and Medical Claims Data in Japan. Advances in Therapy. 42(8). 3839–3860. 2 indexed citations
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Sakai, Fumihiko, Koichi Hirata, Hisaka Igarashi, et al.. (2022). A study to investigate the prevalence of headache disorders and migraine among people registered in a health insurance association in Japan. The Journal of Headache and Pain. 23(1). 70–70. 26 indexed citations
5.
Fujii, Yukiko, Kouji H. Harada, Shosuke Ito, et al.. (2022). Profiles and determinants of dicofol, endosulfans, mirex, and toxaphenes in breast milk samples from 10 prefectures in Japan. Chemosphere. 311(Pt 1). 137002–137002. 4 indexed citations
6.
Kato, Yoshihisa, Koichi Haraguchi, Shinichi Ikushiro, et al.. (2019). Kanechlor 500‐mediated changes in serum and hepatic thyroxine levels primarily occur in a transthyretin‐unrelated manner. Journal of Applied Toxicology. 39(12). 1701–1709. 1 indexed citations
7.
Ohta, Chiho, Koichi Haraguchi, Yoshihisa Kato, et al.. (2015). [Metabolism of 2,2',3,4,4',5,5'-Heptachlorobiphenyl (CB180) by Animal Liver Microsomes].. PubMed. 106(5). 176–83. 1 indexed citations
8.
Yamamoto, Kenta, et al.. (2013). Detection of Adulterated Shiikuwasha Juice by Sensory Evaluation, Colorimetric Value and Volatile Components. Food Science and Technology Research. 19(5). 843–848. 13 indexed citations
9.
Kobayashi, H., et al.. (2010). Pharmacokinetic study of the oral administration of procaterol hydrochloride hydrate 50 µg in healthy adult Japanese men. International Journal of Clinical Pharmacology and Therapeutics. 48(11). 744–750. 4 indexed citations
10.
Koga, Nobuyuki, et al.. (2009). Synephrine in Shiikuwasha (Citrus depressa Hayata): Change during Fruit Development, and Its Distribution in Citrus Varieties. Food Science and Technology Research. 15(4). 389–394. 6 indexed citations
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ISHII, Toshinao, et al.. (2006). Quantification of Nobiletin and Tangeretin in Citrus by Micellar Electrokinetic Capillary Chromatography. Food Science and Technology Research. 12(4). 284–289. 5 indexed citations
13.
Munakata, Mitsuru, Yosuke Harada, Takashi Ishida, et al.. (2006). Molecular-Based Haplotype Analysis of the β 2-Adrenergic Receptor Gene (ADRB2) in Japanese Asthmatic and Non-Asthmatic Subjects. Allergology International. 55(2). 191–198. 26 indexed citations
14.
Ohta, Chiho, Koichi Haraguchi, Yoshihisa Kato, & Nobuyuki Koga. (2005). In vitrometabolism of 2,2′,3,4′,5,5′,6-heptachlorobiphenyl (CB187) by liver microsomes from rats, hamsters and guinea pigs. Xenobiotica. 35(4). 319–330. 14 indexed citations
15.
Kuroki, Hiroaki, Kaoru Fujino, Hironori Aramaki, et al.. (2001). [Assessment of hydroxylated metabolites of polychlorinated biphenyls and polychlorinated dibenzofurans as potential estrogens by yeast two-hybrid system].. PubMed. 92(5). 158–66. 1 indexed citations
16.
Kitamura, Shigeyuki, et al.. (1999). DT-Diaphorase-Like Quinone Reductase in Rat Plasma.. Biological and Pharmaceutical Bulletin. 22(8). 883–885. 5 indexed citations
17.
Hanioka, Nobumitsu, et al.. (1991). [Toxicological assessment of 2,5,2',5'-tetrachlorobiphenyl and its major metabolite, 3-hydroxy-2,5,2',5'-tetrachlorobiphenyl in rats].. PubMed. 82(5). 191–6. 3 indexed citations
18.
Koga, Nobuyuki, et al.. (1990). Metabolism in vivo of 3, 4, 5, 3', 4'-pentachorobiphenyl and toxicological assessment of the metabolite in rats.. Journal of Pharmacobio-Dynamics. 13(8). 497–506. 47 indexed citations
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Yoshimura, Hiroaki, Yoshimasa Yonemoto, Hiroshi Yamada, et al.. (1987). Metabolismin vivoof 3,4,3′,4′-tetrachlorobiphenyl and toxicological assessment of the metabolites in rats. Xenobiotica. 17(8). 897–910. 64 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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