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Hitoshi Okamura

Active 1972–2024

135
Papers
25,976
Citations
91
h-index
132
i10-index

Citations

Citations per year for Hitoshi Okamura1966: 1 citations1973: 1 citations1974: 2 citations1976: 1 citations1978: 2 citations1979: 1 citations1981: 1 citations1982: 1 citations1983: 1 citations1984: 3 citations1985: 2 citations1986: 6 citations1987: 6 citations1988: 2 citations1989: 4 citations1990: 6 citations1991: 13 citations1992: 17 citations1993: 35 citations1994: 31 citations1995: 29 citations1996: 50 citations1997: 61 citations1998: 126 citations1999: 148 citations2000: 261 citations2001: 320 citations2002: 316 citations2003: 332 citations2004: 251 citations2005: 296 citations2006: 291 citations2007: 359 citations2008: 304 citations2009: 321 citations2010: 343 citations2011: 299 citations2012: 250 citations2013: 284 citations2014: 253 citations2015: 204 citations2016: 227 citations2017: 220 citations2018: 194 citations2019: 566 citations2020: 617 citations2021: 518 citations2022: 412 citations2023: 256 citations2024: 435 citations2025: 170 citations2026: 3 citations1967–1972: no citations, so these years are not shown1975: no citations, so this year is not shown1977: no citations, so this year is not shown1980: no citations, so this year is not shown

Citation sources

Countries

World map of the countries and regions citing this authorUnited States: 2,849 citing papers, 30.5% of this breakdownJapan: 938 citing papers, 10.1% of this breakdownChina: 933 citing papers, 10% of this breakdownUnited Kingdom: 673 citing papers, 7.2% of this breakdownGermany: 536 citing papers, 5.7% of this breakdownFrance: 331 citing papers, 3.5% of this breakdownCanada: 307 citing papers, 3.3% of this breakdownNetherlands: 254 citing papers, 2.7% of this breakdownSwitzerland: 246 citing papers, 2.6% of this breakdownAustralia: 202 citing papers, 2.2% of this breakdownItaly: 186 citing papers, 2% of this breakdownSpain: 140 citing papers, 1.5% of this breakdown
0%30.5%Other 18.7%

Institutions

Fields

  • Neuroscience39.8%
  • Biochemistry, Genetics and Molecular Biology26%
  • Medicine24%
  • Immunology and Microbiology3.4%
  • Psychology1.7%
  • Agricultural and Biological Sciences1.5%
  • Other3.6%

Topics

  • Circadian rhythm and melatonin13.1%
  • Light effects on plants3.4%
  • Photoreceptor and optogenetics research2.8%
  • RNA modifications and cancer2.7%
  • Spaceflight effects on biology2.3%
  • Dietary Effects on Health2.3%
  • Other73.4%

Coauthors

All papers

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  1. RNA-Methylation-Dependent RNA Processing Controls the Speed of the Circadian Clock

    Authors: Jean‐Michel Fustin, Masao Doi, Yoshiaki Yamaguchi, Hida Hayashi, Shinichi Nishimura, Minoru Yoshida, Takayuki Isagawa, M. Morioka, Hideaki Kakeya, Ichiro Manabe, Hitoshi Okamura - Cell 2013 cited by 1,013

  2. Light activates the adrenal gland: Timing of gene expression and glucocorticoid release

    Authors: Atsushi Ishida, Tatsushi Mutoh, Tomoko Ueyama, Hideki Bando, Satoru Masubuchi, Daiichiro Nakahara, Gozoh Tsujimoto, Hitoshi Okamura - Cell Metabolism 2005 cited by 576

  3. Synchronization of Cellular Clocks in the Suprachiasmatic Nucleus

    Authors: Shun Yamaguchi, Hiromi Isejima, Takuya Matsuo, Ryusuke Okura, Kazuhiro Yagita, Masaki Kobayashi, Hitoshi Okamura - Science 2003 cited by 940

  4. Light-Induced Resetting of a Mammalian Circadian Clock Is Associated with Rapid Induction of the Transcript

    Authors: Yasufumi Shigeyoshi, Kouji Taguchi, Shuzo Yamamoto, Seiichi Takekida, Lili Yan, Hajime Tei, Takahiro Moriya, Shigenobu Shibata, Jennifer Loros, Jay Dunlap, Hitoshi Okamura - Cell 1997 cited by 895

  5. Interleukin-18 is a unique cytokine that stimulates both Th1 and Th2 responses depending on its cytokine milieu

    Authors: Kozo Nakanishi, Takeshi Yoshimoto, Hiroyuki Tsutsui, Hitoshi Okamura - Cytokine & Growth Factor Reviews 2001 cited by 659

  6. CK1δ/ε protein kinase primes the PER2 circadian phosphoswitch

    Authors: Rajesh Narasimamurthy, Sabrina R. Hunt, Yining Lu, Jean‐Michel Fustin, Hitoshi Okamura, Carrie L. Partch, Daniel B. Forger, Jae Kyoung Kim, David M. Virshup - National Academy of Sciences, Proceedings of the National Academy of Sciences 2018 cited by 180

  7. The murine mutation osteopetrosis is in the coding region of the macrophage colony stimulating factor gene

    Authors: Hisahiro Yoshida, Shinichi Hayashi, Takahiro Kunisada, Minetaro Ogawa, Satomi Nishikawa, Hitoshi Okamura, Tetsuo Sudo, Leonard D. Shultz, Shin-Ichi Nishikawa - Nature 1990 cited by 1,790

  8. Control Mechanism of the Circadian Clock for Timing of Cell Division in Vivo

    Authors: Takuya Matsuo, Shun Yamaguchi, Shigeru Mitsui, Aki Emi, Fukuko Shimoda, Hitoshi Okamura - Science 2003 cited by 1,144

  9. microRNA Modulation of Circadian-Clock Period and Entrainment

    Authors: Hai‐Ying Mary Cheng, Joseph Papp, Olga Varlamova, Heather Dziema, Brandon S Russell, John Curfman, Takanobu Nakazawa, Kimiko Shimizu, Hitoshi Okamura, Soren Impey, Karl Obrietan - Neuron 2007 cited by 584

  10. Mice Genetically Deficient in Vasopressin V1a and V1b Receptors Are Resistant to Jet Lag

    Authors: Yoshiaki Yamaguchi, T. Suzuki, Yasutaka Mizoro, Hiroshi Kori, Kazuki Okada, Yulin Chen, Jean‐Michel Fustin, Fumiyoshi Yamazaki, Naoki Mizuguchi, Jing Zhang, Xin Dong, Gozoh Tsujimoto, Yasushi Okuno, Masao Doi, Hitoshi Okamura - Science 2013 cited by 343

  11. Development and Validation of the Cancer Fatigue Scale

    Authors: Toru Okuyama, Tatsuo Akechi, Akira Kugaya, Hitoshi Okamura, Yasuo Shima, Misae Maruguchi, Takashi Hosaka, Yosuke Uchitomi - Journal of Pain and Symptom Management 2000 cited by 395

  12. S-adenosyl-l-homocysteine hydrolase links methionine metabolism to the circadian clock and chromatin remodeling

    Authors: Carolina M. Greco, Marlene Cervantes, Jean‐Michel Fustin, Kakeru Ito, Nicholas Ceglia, Muntaha Samad, Jiejun Shi, Kevin B. Koronowski, Ignasi Forné, Suman Ranjit, Jonathan Gaucher, Kenichiro Kinouchi, Rika Kojima, Enrico Gratton, Wei Li, Pierre Baldi, Axel Imhof, Hitoshi Okamura, Paolo Sassone‐Corsi - Science Advances 2020 cited by 90

  13. Excess S-adenosylmethionine inhibits methylation via catabolism to adenine

    Authors: Kazuki Fukumoto, Kakeru Ito, Ben Saer, G.N. Taylor, Shiqi Ye, Mayu Yamano, Yuki Toriba, Andrew Hayes, Hitoshi Okamura, Jean‐Michel Fustin - Communications Biology 2022 cited by 53

  14. Antagonistic role of E4BP4 and PAR proteins in the circadian oscillatory mechanism

    Authors: Shigeru Mitsui, Shun Yamaguchi, Takuya Matsuo, Yoshiki Ishida, Hitoshi Okamura - Genes & Development 2001 cited by 401

  15. FSP27 contributes to efficient energy storage in murine white adipocytes by promoting the formation of unilocular lipid droplets

    Authors: Naonobu Nishino, Yoshikazu Tamori, Sanshiro Tateya, Takayuki Kawaguchi, Tetsuro Shibakusa, Wataru Mizunoya, Kazuo Inoue, Riko Kitazawa, Sohei Kitazawa, Yasushi Matsuki, Ryuji Hiramatsu, Satoru Masubuchi, A. Omachi, Kazuhiro Kimura, Masayuki Saito, Taku Amo, Shigeo Ohta, Tomohiro Yamaguchi, Takashi Osumi, Jinglei Cheng, Toyoshi Fujimoto, Harumi Nakao, Kazuki Nakao, Atsu Aiba, Hitoshi Okamura, Tohru Fushiki, Masato Kasuga - Journal of Clinical Investigation 2008 cited by 389

  16. Real-time imaging of the somite segmentation clock: Revelation of unstable oscillators in the individual presomitic mesoderm cells

    Authors: Yoshito Masamizu, Toshiyuki Ohtsuka, Yoshiki Takashima, Hiroki Nagahara, Yoshiko Takenaka, Kenichi Yoshikawa, Hitoshi Okamura, Ryoichiro Kageyama - National Academy of Sciences, Proceedings of the National Academy of Sciences 2006 cited by 359

  17. Minimal upstream open reading frame of Per2 mediates phase fitness of the circadian clock to day/night physiological body temperature rhythm

    Authors: Takahito Miyake, Yuichi Inoue, Xinyan Shao, Takehito Seta, Yuto Aoki, Khanh Tien Nguyen Pham, Yuichi Shichino, Junko Sasaki, Takehiko Sasaki, Masahito Ikawa, Yoshiaki Yamaguchi, Hitoshi Okamura, Shintaro Iwasaki, Masao Doi - Cell Reports 2023 cited by 37

  18. Salt-sensitive hypertension in circadian clock–deficient Cry-null mice involves dysregulated adrenal Hsd3b6

    Authors: Masao Doi, Yukari Takahashi, Rie Komatsu, Fumiyoshi Yamazaki, Hiroyuki Yamada, Shogo Haraguchi, Noriaki Emoto, Yasushi Okuno, Gozoh Tsujimoto, Akihiro Kanematsu, Osamu Ogawa, Takeshi Todo, Kazuyoshi Tsutsui, Gijsbertus T. J. van der Horst, Hitoshi Okamura - Nature Medicine 2009 cited by 422

  19. Bmal1 regulates inflammatory responses in macrophages by modulating enhancer RNA transcription

    Authors: Yumiko Oishi, Shinichiro Hayashi, Takayuki Isagawa, Motohiko Oshima, Atsushi Iwama, Shigeki Shimba, Hitoshi Okamura, Ichiro Manabe - Scientific Reports 2017 cited by 96

  20. Gpr176 is a Gz-linked orphan G-protein-coupled receptor that sets the pace of circadian behaviour

    Authors: Masao Doi, Iori Murai, Sumihiro Kunisue, Genzui Setsu, Naohiro Uchio, Rina Tanaka, S. Kobayashi, Hiroyuki Shimatani, Hida Hayashi, Hsu‐Wen Chao, Yuuki Nakagawa, Yukari Takahashi, Yunhong Hotta, Jun‐ichirou Yasunaga, Masao Matsuoka, Michael H. Hastings, Hiroshi Kiyonari, Hitoshi Okamura - Nature Communications 2016 cited by 92

  21. Adrenergic regulation of clock gene expression in mouse liver

    Authors: Hideyuki Terazono, Tatsushi Mutoh, Shun Yamaguchi, Masaki Kobayashi, Masashi Akiyama, Rhyuta Udo, Shigehiro Ohdo, Hitoshi Okamura, Shigenobu Shibata - National Academy of Sciences, Proceedings of the National Academy of Sciences 2003 cited by 291

  22. Mammalian Clock Gene Cryptochrome Regulates Arthritis via Proinflammatory Cytokine TNF-α

    Authors: Akira Hashiramoto, Takashi Yamane, Ken Tsumiyama, Kohsuke Yoshida, Koichiro Komai, Hiroyuki Yamada, Fumiyoshi Yamazaki, Masao Doi, Hitoshi Okamura, Shunichi Shiozawa - The Journal of Immunology 2009 cited by 173

  23. Functional D-box sequences reset the circadian clock and drive mRNA rhythms

    Authors: Hikari Yoshitane, Yoshimasa Asano, Aya Sagami, Seinosuke Sakai, Yutaka Suzuki, Hitoshi Okamura, Wataru Iwasaki, Haruka Ozaki, Yoshitaka Fukada - Communications Biology 2019 cited by 97

  24. Circadian oscillation of a mammalian homologue of the Drosophila period gene

    Authors: Hajime Tei, Hitoshi Okamura, Yasufumi Shigeyoshi, Chiaki Fukuhara, Ritsuko Ozawa, Matsumi Hirose, Yoshiyuki Sakaki - Nature 1997 cited by 793