Hirokazu Hirai

8.8k total citations
180 papers, 5.6k citations indexed

About

Hirokazu Hirai is a scholar working on Cellular and Molecular Neuroscience, Molecular Biology and Neurology. According to data from OpenAlex, Hirokazu Hirai has authored 180 papers receiving a total of 5.6k indexed citations (citations by other indexed papers that have themselves been cited), including 106 papers in Cellular and Molecular Neuroscience, 101 papers in Molecular Biology and 25 papers in Neurology. Recurrent topics in Hirokazu Hirai's work include Neuroscience and Neuropharmacology Research (69 papers), Genetic Neurodegenerative Diseases (35 papers) and Mitochondrial Function and Pathology (21 papers). Hirokazu Hirai is often cited by papers focused on Neuroscience and Neuropharmacology Research (69 papers), Genetic Neurodegenerative Diseases (35 papers) and Mitochondrial Function and Pathology (21 papers). Hirokazu Hirai collaborates with scholars based in Japan, United States and Russia. Hirokazu Hirai's co-authors include Ayumu Konno, Bodo Laube, Heinrich Betz, Jochen Kuhse, Yasunori Matsuzaki, Sumiko Mikawa, Shinji Matsuda, Takashi Torashima, Thomas Launey and Luís Pereira de Almeida and has published in prestigious journals such as Nature, Science and Proceedings of the National Academy of Sciences.

In The Last Decade

Hirokazu Hirai

175 papers receiving 5.6k citations

Peers — A (Enhanced Table)

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

Name h Career Trend Papers Cites
Hirokazu Hirai Japan 40 3.2k 3.1k 884 593 542 180 5.6k
Haruo Okado Japan 36 2.1k 0.7× 2.8k 0.9× 520 0.6× 392 0.7× 322 0.6× 95 5.2k
Ji‐Eun Kim South Korea 41 2.5k 0.8× 3.2k 1.0× 735 0.8× 752 1.3× 449 0.8× 181 6.8k
Nikolaj Klöcker Germany 39 2.2k 0.7× 2.9k 0.9× 559 0.6× 285 0.5× 498 0.9× 81 5.1k
Pradeep G. Bhide United States 39 2.2k 0.7× 2.3k 0.7× 459 0.5× 298 0.5× 469 0.9× 112 4.8k
Marc Freeman United States 49 4.2k 1.3× 2.6k 0.8× 1.3k 1.4× 816 1.4× 234 0.4× 100 7.7k
Michel Dubois‐Dauphin Switzerland 43 1.9k 0.6× 2.6k 0.9× 882 1.0× 510 0.9× 288 0.5× 102 7.2k
James Bibb United States 42 2.7k 0.8× 3.3k 1.1× 287 0.3× 595 1.0× 515 1.0× 89 6.5k
Shing Yan Chiu United States 41 3.8k 1.2× 3.3k 1.1× 619 0.7× 315 0.5× 549 1.0× 73 5.8k
Heng‐Ye Man United States 44 3.9k 1.2× 4.0k 1.3× 881 1.0× 752 1.3× 1.2k 2.2× 107 7.7k

Countries citing papers authored by Hirokazu Hirai

Since Specialization
Citations

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

Fields of papers citing papers by Hirokazu Hirai

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Hirokazu Hirai

This figure shows the co-authorship network connecting the top 25 collaborators of Hirokazu Hirai. A scholar is included among the top collaborators of Hirokazu Hirai 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 Hirokazu Hirai. Hirokazu Hirai 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.
Wang, Xiaowen, Tsuneko Mishima, Peter Kusk, et al.. (2025). Cerebral blood flow is modulated by astrocytic cAMP elevation independently of IP 3 R2-mediated Ca 2+ signaling in mice. Proceedings of the National Academy of Sciences. 122(27). e2422069122–e2422069122. 2 indexed citations
2.
Hirai, Hirokazu, et al.. (2025). Blood–brain barrier-penetrant AAV vectors for cell type-specific gene expression in the mouse brain. Anatomical Science International. 100(4). 420–432.
3.
Konno, Ayumu, Yoichiro Shinohara, & Hirokazu Hirai. (2024). Production of Spinocerebellar Ataxia Type 3 Model Mice by Intravenous Injection of AAV-PHP.B Vectors. International Journal of Molecular Sciences. 25(13). 7205–7205. 2 indexed citations
4.
5.
6.
Nagashima, Takashi, et al.. (2023). State-dependent modulation of positive and negative affective valences by a parabrachial nucleus-to-ventral tegmental area pathway in mice. Frontiers in Neural Circuits. 17. 1273322–1273322. 2 indexed citations
7.
Sakai, Aya, Takeshi Yasui, Yoshihiko Yamamoto, et al.. (2022). Development of novel potent ligands for GPR85 , an orphan G protein‐coupled receptor expressed in the brain. Genes to Cells. 27(5). 345–355. 6 indexed citations
8.
Takahashi, Nobutaka, Nobutake Hosoi, Ayumu Konno, et al.. (2022). Protein kinase Cγ in cerebellar Purkinje cells regulates Ca 2+ -activated large-conductance K + channels and motor coordination. Proceedings of the National Academy of Sciences. 119(7). 8 indexed citations
9.
Konno, Ayumu, et al.. (2021). Comparative study of neuron-specific promoters in mouse brain transduced by intravenously administered AAV-PHP.eB. Neuroscience Letters. 756. 135956–135956. 30 indexed citations
10.
Ohgami, Nobutaka, Akira Iizuka, Hirokazu Hirai, et al.. (2021). Loss-of-function mutation of c-Ret causes cerebellar hypoplasia in mice with Hirschsprung disease and Down's syndrome. Journal of Biological Chemistry. 296. 100389–100389. 4 indexed citations
11.
Oe, Yuki, Xiaowen Wang, Tommaso Patriarchi, et al.. (2020). Distinct temporal integration of noradrenaline signaling by astrocytic second messengers during vigilance. Nature Communications. 11(1). 471–471. 114 indexed citations
12.
13.
Sato, Masahiro, Erica Ueda, Ayumu Konno, et al.. (2020). Glucocorticoids negatively regulates chaperone mediated autophagy and microautophagy. Biochemical and Biophysical Research Communications. 528(1). 199–205. 19 indexed citations
14.
Seki, Takahiro, Masahiro Sato, Ayumu Konno, et al.. (2018). d-Cysteine promotes dendritic development in primary cultured cerebellar Purkinje cells via hydrogen sulfide production. Molecular and Cellular Neuroscience. 93. 36–47. 19 indexed citations
15.
Seki, Takahiro, Masahiro Sato, Tomoko Ohta, et al.. (2018). Lysosomal dysfunction and early glial activation are involved in the pathogenesis of spinocerebellar ataxia type 21 caused by mutant transmembrane protein 240. Neurobiology of Disease. 120. 34–50. 23 indexed citations
16.
Shuvaev, Аnton N., Nobutake Hosoi, Y. Sato, Dai Yanagihara, & Hirokazu Hirai. (2016). Progressive impairment of cerebellar mGluR signalling and its therapeutic potential for cerebellar ataxia in spinocerebellar ataxia type 1 model mice. The Journal of Physiology. 595(1). 141–164. 53 indexed citations
17.
Yoshihara, Sei‐ichi, Hiroo Takahashi, Masahito Kinoshita, et al.. (2014). Npas4 Regulates Mdm2 and thus Dcx in Experience-Dependent Dendritic Spine Development of Newborn Olfactory Bulb Interneurons. Cell Reports. 8(3). 843–857. 40 indexed citations
18.
Hirai, Hirokazu. (2001). Ca2+‐dependent regulation of synaptic δ2 glutamate receptor density in cultured rat Purkinje neurons. European Journal of Neuroscience. 14(1). 73–82. 25 indexed citations
19.
Hirai, Hirokazu & Thomas Launey. (2000). The Regulatory Connection between the Activity of Granule Cell NMDA Receptors and Dendritic Differentiation of Cerebellar Purkinje Cells. Journal of Neuroscience. 20(14). 5217–5224. 96 indexed citations
20.
Akita, Hirotaka, Y Kitazawa, Shin Suda, et al.. (1995). Effect of occlusion on human skin. Contact Dermatitis. 33(4). 231–235. 26 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 Haruo Okado Breakdown of academic impact, for papers by Ji‐Eun Kim Breakdown of academic impact, for papers by Nikolaj Klöcker Breakdown of academic impact, for papers by Pradeep G. Bhide Breakdown of academic impact, for papers by Marc Freeman Breakdown of academic impact, for papers by Michel Dubois‐Dauphin Breakdown of academic impact, for papers by James Bibb Breakdown of academic impact, for papers by Shing Yan Chiu Breakdown of academic impact, for papers by Heng‐Ye Man
Rankless by CCL
2026