Kaori Koike

2.1k citations

22 papers · 1.7k indexed · 1 hit paper · h-index 14

Cellular and Molecular Neuroscience top 2%
Cognitive Neuroscience top 5%
Developmental Neuroscience top 1%
Molecular Biology
Biological Psychiatry top 1%

Co-authors: Eiji Shimizu Masaomi Iyo Kenji Hashimoto Naoe Okamura Naoya Komatsu Michiko Nakazato Chikara Kumakiri Naoyuki Shinoda
Topics: Obsessive-Compulsive Spectrum Disorders (4 papers)Nerve injury and regeneration (4 papers)Autism Spectrum Disorder Research (4 papers)
Cited by: Biological Psychiatry Developmental Neuroscience Behavioral Neuroscience
Journals: Biological Psychiatry Brain Research Schizophrenia Research
Partner nations: Japan France United States

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

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

#	Work	Indexed citations
1	Effect of Lemborexant‐Based Sleep Medication Formulary on Benzodiazepine Reduction and Clinical Outcomes: A Single‐Center Retrospective Study 2025 ·Neuropsychopharmacology Reports ·S. Aoki,Katsutoshi Takada,(unknown),(unknown),Tatsuya Hoshino,Kaori Koike,(unknown),(unknown),Shigeki Sato,(unknown),(unknown),Takashi Tomita	2
2	Clozapine treatment of a Japanese patient during pregnancy: Effect on fetal heart rate 2024 ·Neuropsychopharmacology Reports ·S. Aoki,Katsutoshi Takada,(unknown),(unknown),Tatsuya Hoshino,(unknown),(unknown),(unknown),(unknown),Kaori Koike,(unknown),(unknown),Shigeki Sato	1
3	Dopaminergic hypofunctions and prepulse inhibition deficits in mice lacking midkine 2009 ·Progress in Neuro-Psychopharmacology and Biological Psychiatry ·Shintaro Ohgake,Eiji Shimizu,Kenji Hashimoto,Naoe Okamura,Kaori Koike,Hiroyuki Koizumi,Mihisa Fujisaki,Nobuhisa Kanahara,Shingo Matsuda,Chihiro Sutoh,Daisuke Matsuzawa,Hisako Muramatsu,Takashi Muramatsu,Masaomi Iyo	18
4	Deficits in auditory P50 inhibition in obsessive–compulsive disorder 2007 ·Progress in Neuro-Psychopharmacology and Biological Psychiatry ·Tasuku Hashimoto,Eiji Shimizu,Kaori Koike,(unknown),Tomotaka Suzuki,Nobuhisa Kanahara,Daisuke Matsuzawa,Goro Fukami,Ryosuke Miyatake,Naoyuki Shinoda,Mihisa Fujisaki,Yukihiko Shirayama,Kenji Hashimoto,Masaomi Iyo	36
5	No association of the brain-derived neurotrophic factor (BDNF) gene polymorphisms with panic disorder 2005 ·Progress in Neuro-Psychopharmacology and Biological Psychiatry ·Eiji Shimizu,Kenji Hashimoto,Hiroki Koizumi,Keisuke Kobayashi,Kanako Itoh,(unknown),Shintaro Ohgake,Naoe Okamura,Kaori Koike,Daisuke Matsuzawa,Lin Zhang,Chikara Kumakiri,Michiko Nakazato,Naoya Komatsu,Masaomi Iyo	35
6	Association between angiotensin I-converting enzyme insertion/deletion gene functional polymorphism and novelty seeking personality in healthy females 2005 ·Progress in Neuro-Psychopharmacology and Biological Psychiatry ·Eiji Shimizu,Kenji Hashimoto,Shintaro Ohgake,Hiroki Koizumi,Naoe Okamura,Kaori Koike,Mihisa Fujisaki,Masaomi Iyo	10
7	Tropisetron improves deficits in auditory P50 suppression in schizophrenia 2005 ·Schizophrenia Research ·Kaori Koike,Kenji Hashimoto,(unknown),Eiji Shimizu,Naoya Komatsu,Hiroyuki Watanabe,Michiko Nakazato,Naoe Okamura,Karen E. Stevens,Robert Freedman,Masaomi Iyo	111
8	Functional polymorphism of the NQO2 gene is associated with methamphetamine psychosis 2005 ·Addiction Biology ·Shintaro Ohgake,Kenji Hashimoto,Eiji Shimizu,Hiroki Koizumi,Naoe Okamura,Kaori Koike,Daisuke Matsuzawa,Yoshimoto Sekine,Toshiya Inada,Norio Ozaki,Nakao Iwata,Mutsuo Harano,Tokutaro Komiyama,Mitsuhiko Yamada,Ichiro Sora,Hiroshi Ujike,Yukihiko Shirayama,Masaomi Iyo	18
9	Increased midkine levels in sera from patients with Alzheimer's disease 2005 ·Progress in Neuro-Psychopharmacology and Biological Psychiatry ·Ragaa H. M. Salama,Hisako Muramatsu,Eiji Shimizu,Kenji Hashimoto,Shintaro Ohgake,Hiroyuki Watanabe,Naoya Komatsu,Naoe Okamura,Kaori Koike,Naoyuki Shinoda,Shinichi Okada,Masaomi Iyo,Takashi Muramatsu	18
10	Serum brain-derived neurotrophic factor (BDNF) levels in patients with panic disorder: As a biological predictor of response to group cognitive behavioral therapy 2005 ·Progress in Neuro-Psychopharmacology and Biological Psychiatry ·Keisuke Kobayashi,Eiji Shimizu,Kenji Hashimoto,(unknown),Kaori Koike,Naoe Okamura,Hiroki Koizumi,Shintaro Ohgake,Daisuke Matsuzawa,Lin Zhang,Michiko Nakazato,Masaomi Iyo	71
11	α7 Nicotinic Receptor Agonists as Potential Therapeutic Drugs for Schizophrenia 2005 ·Kenji Hashimoto,Kaori Koike,Eiji Shimizu,Masaomi Iyo	36
12	Decreased cell proliferation in the dentate gyrus of α7 nicotinic acetylcholine receptor heterozygous mice 2004 ·Progress in Neuro-Psychopharmacology and Biological Psychiatry ·Kaori Koike,Kenji Hashimoto,Naoe Okamura,Shintaro Ohgake,Eiji Shimizu,Hiroki Koizumi,Naoya Komatsu,Masaomi Iyo	4
13	Effect of antioxidant N-acetyl-l-cysteine on behavioral changes and neurotoxicity in rats after administration of methamphetamine 2004 ·Brain Research ·Goro Fukami,Kenji Hashimoto,Kaori Koike,Naoe Okamura,Eiji Shimizu,Masaomi Iyo	112
14	Lack of association between angiotensin I-converting enzyme insertion/deletion gene functional polymorphism and panic disorder in humans 2004 ·Neuroscience Letters ·Eiji Shimizu,Kenji Hashimoto,Keisuke Kobayashi,(unknown),Shintaro Ohgake,Hiroki Koizumi,Naoe Okamura,Kaori Koike,Chikara Kumakiri,Michiko Nakazato,Naoya Komatsu,Masaomi Iyo	15
15	Alterations of serum levels of brain-derived neurotrophic factor (BDNF) in depressed patients with or without antidepressantsbreakdown → 2003 ·Biological Psychiatry ·Eiji Shimizu,Kenji Hashimoto,Naoe Okamura,Kaori Koike,Naoya Komatsu,Chikara Kumakiri,Michiko Nakazato,Hiroyuki Watanabe,Naoyuki Shinoda,(unknown),Masaomi Iyo	922
16	Two clusters of serum midkine levels in drug-naive patients with schizophrenia 2003 ·Neuroscience Letters ·Eiji Shimizu,Kenji Hashimoto,Ragaa H. M. Salama,Hiroyuki Watanabe,Naoya Komatsu,Naoe Okamura,Kaori Koike,Naoyuki Shinoda,Michiko Nakazato,Chikara Kumakiri,(unknown),Hisako Muramatsu,Takashi Muramatsu,Masaomi Iyo	10
17	Possible role of d-serine in the pathophysiology of Alzheimer's disease 2003 ·Progress in Neuro-Psychopharmacology and Biological Psychiatry ·Kenji Hashimoto,Takeshi Fukushima,Eiji Shimizu,Shinichi Okada,Naoya Komatsu,Naoe Okamura,Kaori Koike,Hiroki Koizumi,Chikara Kumakiri,Kazuhiro Imai,Masaomi Iyo	95
18	Serum brain-derived neurotrophic factor (BDNF) levels in schizophrenia are indistinguishable from controls 2003 ·Neuroscience Letters ·Eiji Shimizu,Kenji Hashimoto,Hiroyuki Watanabe,Naoya Komatsu,Naoe Okamura,Kaori Koike,Naoyuki Shinoda,Michiko Nakazato,Chikara Kumakiri,(unknown),Masaomi Iyo	130
19	Association between the brain‐derived neurotrophic factor 196G/A polymorphism and eating disorders 2003 ·American Journal of Medical Genetics Part B Neuropsychiatric Genetics ·Hiroki Koizumi,Kenji Hashimoto,Kanako Itoh,Michiko Nakazato,Eiji Shimizu,Shintaro Ohgake,Kaori Koike,Naoe Okamura,Sachio Matsushita,Kenji Suzuki,Masanobu Murayama,Susumu Higuchi,Masaomi Iyo	55
20	Protective effect of LY379268, a selective group II metabotropic glutamate receptor agonist, on dizocilpine-induced neuropathological changes in rat retrosplenial cortex 2003 ·Brain Research ·Naoe Okamura,Kenji Hashimoto,Eiji Shimizu,Kaori Koike,Shintaro Ohgake,Hiroki Koizumi,Chikara Kumakiri,Naoya Komatsu,Masaomi Iyo	12

About Kaori Koike

Kaori Koike is a scholar working on Biological Psychiatry, Developmental Neuroscience and Cellular and Molecular Neuroscience, having authored 22 papers that have together received 1.7k indexed citations. Recurring topics across this work include Obsessive-Compulsive Spectrum Disorders (4 papers), Nerve injury and regeneration (4 papers) and Autism Spectrum Disorder Research (4 papers). The work is most often cited by research in Biological Psychiatry (306 citations), Developmental Neuroscience (374 citations) and Behavioral Neuroscience (256 citations). Kaori Koike has collaborated with scholars based in Japan, France and United States. Frequent co-authors include Eiji Shimizu, Masaomi Iyo, Kenji Hashimoto, Naoe Okamura, Naoya Komatsu, Michiko Nakazato, Chikara Kumakiri, Naoyuki Shinoda, Hiroyuki Watanabe and Hiroki Koizumi. Their work appears in journals such as Biological Psychiatry, Brain Research and Schizophrenia Research.

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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