Koji Shinkai

703 total citations
20 papers, 546 citations indexed

About

Koji Shinkai is a scholar working on Psychiatry and Mental health, Cellular and Molecular Neuroscience and Biological Psychiatry. According to data from OpenAlex, Koji Shinkai has authored 20 papers receiving a total of 546 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Psychiatry and Mental health, 9 papers in Cellular and Molecular Neuroscience and 7 papers in Biological Psychiatry. Recurrent topics in Koji Shinkai's work include Schizophrenia research and treatment (9 papers), Tryptophan and brain disorders (7 papers) and Bipolar Disorder and Treatment (5 papers). Koji Shinkai is often cited by papers focused on Schizophrenia research and treatment (9 papers), Tryptophan and brain disorders (7 papers) and Bipolar Disorder and Treatment (5 papers). Koji Shinkai collaborates with scholars based in Japan. Koji Shinkai's co-authors include Reiji Yoshimura, Jun Nakamura, Nobuhisa Ueda, N. Ueda, Takashi Uozumi, Shoji Tsuji, Akira Tamagawa, Makiko Goto, Osamu Ohmori and Jun Nakamura and has published in prestigious journals such as Biochemical Pharmacology, Psychiatry Research and Progress in Neuro-Psychopharmacology and Biological Psychiatry.

In The Last Decade

Koji Shinkai

20 papers receiving 528 citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Koji Shinkai Japan 12 201 159 106 102 102 20 546
Katharina Stuke Germany 3 124 0.6× 148 0.9× 56 0.5× 117 1.1× 131 1.3× 3 482
Goro Fukami Japan 13 149 0.7× 184 1.2× 60 0.6× 126 1.2× 143 1.4× 15 549
Pantaleo Fornaro Italy 14 126 0.6× 102 0.6× 72 0.7× 67 0.7× 84 0.8× 30 496
Devsmita Das United States 10 114 0.6× 153 1.0× 103 1.0× 90 0.9× 86 0.8× 18 613
Angelos Halaris United States 10 323 1.6× 149 0.9× 100 0.9× 229 2.2× 126 1.2× 33 757
Isabella Roncaglia Italy 6 126 0.6× 231 1.5× 55 0.5× 79 0.8× 125 1.2× 6 466
Adam Dinoff Canada 9 95 0.5× 169 1.1× 54 0.5× 83 0.8× 115 1.1× 11 686
Chiyo Shibasaki Japan 12 148 0.7× 88 0.6× 90 0.8× 116 1.1× 99 1.0× 19 429
Ajaykumar N. Sharma United States 13 138 0.7× 194 1.2× 67 0.6× 153 1.5× 53 0.5× 14 671
Olena V. Bogdanova France 12 187 0.9× 128 0.8× 76 0.7× 138 1.4× 128 1.3× 18 757

Countries citing papers authored by Koji Shinkai

Since Specialization
Citations

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

Fields of papers citing papers by Koji Shinkai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koji Shinkai

This figure shows the co-authorship network connecting the top 25 collaborators of Koji Shinkai. A scholar is included among the top collaborators of Koji Shinkai 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 Shinkai. Koji Shinkai 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.
Yoshimura, Reiji, et al.. (2007). Valproic Acid improves Psychotic Agitation without Influencing Plasma Risperidone Levels in Schizophrenic Patients. Pharmacopsychiatry. 40(1). 9–13. 16 indexed citations
2.
Yoshimura, Reiji, Hikaru Hori, Atsuko Ikenouchi, et al.. (2007). Treatment with risperidone for 4 weeks increased plasma 3-methoxy-4-hydroxypnenylglycol (MHPG) levels, but did not alter plasma brain-derived neurotrophic factor (BDNF) levels in schizophrenic patients. Progress in Neuro-Psychopharmacology and Biological Psychiatry. 31(5). 1072–1077. 49 indexed citations
3.
Shinkai, Koji, Yumiko Toyohira, Reiji Yoshimura, et al.. (2007). Stimulation of catecholamine synthesis via activation of p44/42 MAPK in cultured bovine adrenal medullary cells by milnacipran. Naunyn-Schmiedeberg s Archives of Pharmacology. 375(1). 65–72. 7 indexed citations
4.
Hori, Hikaru, Reiji Yoshimura, Kensuke Utsunomiya, et al.. (2006). Effects of olanzapine on plasma levels of monoamine metabolites and brain-derived neurotrophic factor in schizophrenic patients. International Clinical Psychopharmacology. 21(4). A1–A1. 3 indexed citations
5.
Goto, Makiko, et al.. (2006). Risperidone in the treatment of psychotic depression. Progress in Neuro-Psychopharmacology and Biological Psychiatry. 30(4). 701–707. 28 indexed citations
6.
Yoshimura, Reiji, Akira Tamagawa, Takashi Uozumi, et al.. (2006). High-Frequency Repetitive Transcranial Magnetic Stimulation Improves Refractory Depression by Influencing Catecholamine and Brain-Derived Neurotrophic Factors. Pharmacopsychiatry. 39(2). 52–59. 120 indexed citations
7.
8.
Yoshimura, Reiji, Jun Nakamura, Koji Shinkai, et al.. (2005). An open study of risperidone liquid in the acute phase of schizophrenia. Human Psychopharmacology Clinical and Experimental. 20(4). 243–248. 18 indexed citations
9.
Toyohira, Yumiko, Tatsuhiko Kubo, Yasuhito Uezono, et al.. (2005). Selective blockade of nicotinic acetylcholine receptors by pimobendan, a drug for the treatment of heart failure: reduction of catecholamine secretion and synthesis in adrenal medullary cells. Naunyn-Schmiedeberg s Archives of Pharmacology. 371(2). 107–113. 10 indexed citations
10.
Yoshimura, Reiji, Koji Shinkai, Makiko Goto, et al.. (2005). Prediction of response to risperidone treatment with respect to plasma concencentrations of risperidone, catecholamine metabolites, and polymorphism of cytochrome P450 2D6. International Clinical Psychopharmacology. 20(2). 71–78. 80 indexed citations
11.
Shinkai, Koji, Reiji Yoshimura, Yumiko Toyohira, et al.. (2005). Effect of prolonged exposure to milnacipran on norepinephrine transporter in cultured bovine adrenal medullary cells. Biochemical Pharmacology. 70(9). 1389–1397. 4 indexed citations
12.
Yoshimura, Reiji, Koji Shinkai, Yumiko Toyohira, et al.. (2005). Effects of zotepine and olanzapine on noradrenaline transporter in cultured bovine adrenal medullary cells. Human Psychopharmacology Clinical and Experimental. 20(7). 477–484. 4 indexed citations
13.
Shinkai, Koji, et al.. (2004). Associations Between Baseline Plasma MHPG (3-methoxy-4-hydroxyphenylglycol) Levels and Clinical Responses With Respect to Milnacipran Versus Paroxetine Treatment. Journal of Clinical Psychopharmacology. 24(1). 11–17. 37 indexed citations
14.
Yoshimura, Reiji, Jun Nakamura, Koji Shinkai, & Nobuhisa Ueda. (2004). Clinical response to antidepressant treatment and 3-methoxy-4-hydroxyphenylglycol levels: mini review. Progress in Neuro-Psychopharmacology and Biological Psychiatry. 28(4). 611–616. 33 indexed citations
15.
Ueda, Nobuhisa, et al.. (2003). Higher Plasma 5-Hydroxyindoleacetic Acid Levels Are Associated with SSRI-Induced Nausea. Neuropsychobiology. 48(1). 31–34. 24 indexed citations
16.
Yoshimura, Reiji, Nobuhisa Ueda, Koji Shinkai, & Jun Nakamura. (2003). Plasma levels of homovanillic acid and the response to risperidone in first episode untreated acute schizophrenia. International Clinical Psychopharmacology. 18(2). 107–111. 42 indexed citations
17.
Ueda, N., Reiji Yoshimura, Koji Shinkai, & Jun Nakamura. (2002). Plasma Levels of Catecholamine Metabolites Predict the Response to Sulpiride or Fluvoxamine in Major Depression. Pharmacopsychiatry. 35(5). 175–181. 36 indexed citations
18.
Ueda, Nobuhisa, Reiji Yoshimura, Koji Shinkai, Takeshi Terao, & Jun Nakamura. (2001). Characteristics of fluvoxamine-induced nausea. Psychiatry Research. 104(3). 259–264. 5 indexed citations
19.
Yoshimura, Reiji, et al.. (2001). Effect of clonazepam treatment on antipsychotic drug‐induced Meige syndrome and changes in plasma levels of GABA, HVA, and MHPG during treatment. Psychiatry and Clinical Neurosciences. 55(5). 543–546. 4 indexed citations
20.
Shinkai, Koji, et al.. (2001). A Case of Myasthenia Gravis Preceded by Major Depression. Journal of Neuropsychiatry. 13(1). 116–a. 5 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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