Kaori Koike

2.1k total citations · 1 hit paper
22 papers, 1.7k citations indexed

About

Kaori Koike is a scholar working on Molecular Biology, Cellular and Molecular Neuroscience and Clinical Psychology. According to data from OpenAlex, Kaori Koike has authored 22 papers receiving a total of 1.7k indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Molecular Biology, 7 papers in Cellular and Molecular Neuroscience and 5 papers in Clinical Psychology. Recurrent topics in Kaori Koike's work include Obsessive-Compulsive Spectrum Disorders (4 papers), Nerve injury and regeneration (4 papers) and Autism Spectrum Disorder Research (4 papers). Kaori Koike is often cited by papers focused on Obsessive-Compulsive Spectrum Disorders (4 papers), Nerve injury and regeneration (4 papers) and Autism Spectrum Disorder Research (4 papers). Kaori Koike collaborates with scholars based in Japan, France and United States. Kaori Koike's co-authors include Eiji Shimizu, Masaomi Iyo, Kenji Hashimoto, Naoe Okamura, Naoya Komatsu, Michiko Nakazato, Chikara Kumakiri, Naoyuki Shinoda, Hiroyuki Watanabe and Hiroki Koizumi and has published in prestigious journals such as Biological Psychiatry, Brain Research and Schizophrenia Research.

In The Last Decade

Kaori Koike

22 papers receiving 1.7k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Alterations of serum levels of brain-derived neurotrophic factor (BDNF) in depressed patients with or without antidepressants

2003 922 citations Eiji Shimizu, Kenji Hashimoto et al. Biological Psychiatry profile →

Peers

Kaori Koike

CMN

Naoyuki Shinoda Japan

Chikara Kumakiri Japan

Naoya Komatsu Japan

Marzena Maćkowiak Poland

Tai‐Jui Chen Taiwan

Andrew C. H. Chen United States

Qingrong Tan China

Gerald Valentine United States

Romano La Harpe Switzerland

Carrol D’Sa United States

Naoyuki Shinoda Japan

Kaori Koike

805 ×0.9

CMN

350 ×0.8

345 ×0.9

392 ×1.1

389 ×1.3

Citations per year, relative to Kaori Koike Kaori Koike (= 1×) peers Naoyuki Shinoda

Countries citing papers authored by Kaori Koike

Since Specialization

Citations

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

Fields of papers citing papers by Kaori Koike

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kaori Koike

This figure shows the co-authorship network connecting the top 25 collaborators of Kaori Koike. A scholar is included among the top collaborators of Kaori Koike 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 Kaori Koike. Kaori Koike is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Aoki, S., Katsutoshi Takada, Tatsuya Hoshino, et al.. (2025). Effect of Lemborexant‐Based Sleep Medication Formulary on Benzodiazepine Reduction and Clinical Outcomes: A Single‐Center Retrospective Study. Neuropsychopharmacology Reports. 45(3). e70054–e70054. 2 indexed citations

Aoki, S., et al.. (2024). Clozapine treatment of a Japanese patient during pregnancy: Effect on fetal heart rate. Neuropsychopharmacology Reports. 44(4). 852–856. 1 indexed citations

Ohgake, Shintaro, Eiji Shimizu, Kenji Hashimoto, et al.. (2009). Dopaminergic hypofunctions and prepulse inhibition deficits in mice lacking midkine. Progress in Neuro-Psychopharmacology and Biological Psychiatry. 33(3). 541–546. 18 indexed citations

Hashimoto, Tasuku, Eiji Shimizu, Kaori Koike, et al.. (2007). Deficits in auditory P50 inhibition in obsessive–compulsive disorder. Progress in Neuro-Psychopharmacology and Biological Psychiatry. 32(1). 288–296. 36 indexed citations

Shimizu, Eiji, Kenji Hashimoto, Hiroki Koizumi, et al.. (2005). No association of the brain-derived neurotrophic factor (BDNF) gene polymorphisms with panic disorder. Progress in Neuro-Psychopharmacology and Biological Psychiatry. 29(5). 708–712. 35 indexed citations

Shimizu, Eiji, Kenji Hashimoto, Shintaro Ohgake, et al.. (2005). Association between angiotensin I-converting enzyme insertion/deletion gene functional polymorphism and novelty seeking personality in healthy females. Progress in Neuro-Psychopharmacology and Biological Psychiatry. 30(1). 99–103. 10 indexed citations

Koike, Kaori, Kenji Hashimoto, Eiji Shimizu, et al.. (2005). Tropisetron improves deficits in auditory P50 suppression in schizophrenia. Schizophrenia Research. 76(1). 67–72. 111 indexed citations

Ohgake, Shintaro, Kenji Hashimoto, Eiji Shimizu, et al.. (2005). Functional polymorphism of the NQO2 gene is associated with methamphetamine psychosis. Addiction Biology. 10(2). 145–148. 18 indexed citations

Salama, Ragaa H. M., Hisako Muramatsu, Eiji Shimizu, et al.. (2005). Increased midkine levels in sera from patients with Alzheimer's disease. Progress in Neuro-Psychopharmacology and Biological Psychiatry. 29(4). 611–616. 18 indexed citations

10.

Kobayashi, Keisuke, Eiji Shimizu, Kenji Hashimoto, et al.. (2005). Serum brain-derived neurotrophic factor (BDNF) levels in patients with panic disorder: As a biological predictor of response to group cognitive behavioral therapy. Progress in Neuro-Psychopharmacology and Biological Psychiatry. 29(5). 658–663. 71 indexed citations

11.

Hashimoto, Kenji, Kaori Koike, Eiji Shimizu, & Masaomi Iyo. (2005). α7 Nicotinic Receptor Agonists as Potential Therapeutic Drugs for Schizophrenia. 5(3). 171–184. 36 indexed citations

12.

Koike, Kaori, Kenji Hashimoto, Naoe Okamura, et al.. (2004). Decreased cell proliferation in the dentate gyrus of α7 nicotinic acetylcholine receptor heterozygous mice. Progress in Neuro-Psychopharmacology and Biological Psychiatry. 28(3). 517–520. 4 indexed citations

13.

Fukami, Goro, Kenji Hashimoto, Kaori Koike, et al.. (2004). Effect of antioxidant N-acetyl-l-cysteine on behavioral changes and neurotoxicity in rats after administration of methamphetamine. Brain Research. 1016(1). 90–95. 112 indexed citations

14.

Shimizu, Eiji, Kenji Hashimoto, Keisuke Kobayashi, et al.. (2004). Lack of association between angiotensin I-converting enzyme insertion/deletion gene functional polymorphism and panic disorder in humans. Neuroscience Letters. 363(1). 81–83. 15 indexed citations

15.

Shimizu, Eiji, Kenji Hashimoto, Naoe Okamura, et al.. (2003). Alterations of serum levels of brain-derived neurotrophic factor (BDNF) in depressed patients with or without antidepressants. Biological Psychiatry. 54(1). 70–75. 922 indexed citations breakdown →

16.

Shimizu, Eiji, Kenji Hashimoto, Ragaa H. M. Salama, et al.. (2003). Two clusters of serum midkine levels in drug-naive patients with schizophrenia. Neuroscience Letters. 344(2). 95–98. 10 indexed citations

17.

Hashimoto, Kenji, Takeshi Fukushima, Eiji Shimizu, et al.. (2003). Possible role of d-serine in the pathophysiology of Alzheimer's disease. Progress in Neuro-Psychopharmacology and Biological Psychiatry. 28(2). 385–388. 95 indexed citations

18.

Shimizu, Eiji, Kenji Hashimoto, Hiroyuki Watanabe, et al.. (2003). Serum brain-derived neurotrophic factor (BDNF) levels in schizophrenia are indistinguishable from controls. Neuroscience Letters. 351(2). 111–114. 130 indexed citations

19.

Koizumi, Hiroki, Kenji Hashimoto, Kanako Itoh, et al.. (2003). Association between the brain‐derived neurotrophic factor 196G/A polymorphism and eating disorders. American Journal of Medical Genetics Part B Neuropsychiatric Genetics. 127B(1). 125–127. 55 indexed citations

20.

Okamura, Naoe, Kenji Hashimoto, Eiji Shimizu, et al.. (2003). Protective effect of LY379268, a selective group II metabotropic glutamate receptor agonist, on dizocilpine-induced neuropathological changes in rat retrosplenial cortex. Brain Research. 992(1). 114–119. 12 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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