World's Best Scientists 2026 revealed!
Hiroshi Kunugi

Hiroshi Kunugi

D-Index & Metrics

Medicine

D-Index
89
Citations
27269
World Ranking
12759
National Ranking
374

Hiroshi Kunugi publication distribution in Medicine in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Medicine in 2026. The highlighted bar marks where Hiroshi Kunugi sits on this spectrum.

101–120 publications: 5 scientists 121–140 publications: 26 scientists 141–160 publications: 73 scientists 161–180 publications: 155 scientists 181–200 publications: 230 scientists 201–220 publications: 363 scientists 221–240 publications: 487 scientists 241–260 publications: 545 scientists 261–280 publications: 722 scientists 281–300 publications: 768 scientists 301–320 publications: 834 scientists 321–340 publications: 895 scientists 341–360 publications: 922 scientists 361–380 publications: 838 scientists 381–400 publications: 861 scientists 401–420 publications: 918 scientists 421–440 publications: 806 scientists 441–460 publications: 771 scientists 461–480 publications: 751 scientists 481–500 publications: 713 scientists 501–520 publications: 617 scientists 521–540 publications: 611 scientists 541–560 publications: 537 scientists 561–580 publications: 504 scientists 581–600 publications: 509 scientists 601–620 publications: 396 scientists 621–640 publications: 386 scientists 641–660 publications: 371 scientists 661–680 publications: 340 scientists 681–700 publications: 336 scientists 701–720 publications: 307 scientists 721–740 publications: 259 scientists 741–760 publications: 230 scientists 761–780 publications: 228 scientists 781–800 publications: 217 scientists 801–820 publications: 204 scientists 821–840 publications: 186 scientists 841–860 publications: 177 scientists 861–880 publications: 155 scientists 881–900 publications: 139 scientists 901–920 publications: 145 scientists 921–940 publications: 116 scientists 941–960 publications: 133 scientists 961–980 publications: 91 scientists 981–1,000 publications: 96 scientists 1,001–1,020 publications: 77 scientists 1,021–1,040 publications: 70 scientists 1,041–1,060 publications: 63 scientists 1,061–1,080 publications: 77 scientists 1,081–1,100 publications: 49 scientists 1,101–1,120 publications: 54 scientists 1,121–1,140 publications: 49 scientists 1,141–1,160 publications: 51 scientists 1,161–1,180 publications: 35 scientists 1,181–1,200 publications: 39 scientists 1,201–1,220 publications: 26 scientists 1,221–1,240 publications: 37 scientists 1,241–1,260 publications: 36 scientists 1,261–1,280 publications: 27 scientists 1,281–1,300 publications: 32 scientists 1,301–1,320 publications: 28 scientists 1,321–1,340 publications: 17 scientists 1,341–1,360 publications: 30 scientists 1,361–1,380 publications: 28 scientists 1,381–1,400 publications: 17 scientists 1,401–1,420 publications: 21 scientists 1,421–1,440 publications: 15 scientists 1,441–1,460 publications: 12 scientists 1,461–1,480 publications: 12 scientists 1,481–1,500 publications: 18 scientists 1,501–1,520 publications: 14 scientists 1,521–1,540 publications: 17 scientists 1,541–1,560 publications: 15 scientists 1,561–1,580 publications: 6 scientists 1,581–1,600 publications: 2 scientists 1,601–1,620 publications: 12 scientists 1,621–1,640 publications: 11 scientists 1,641–1,660 publications: 8 scientists 1,661–1,680 publications: 5 scientists 1,681–1,700 publications: 5 scientists 1,701–1,720 publications: 10 scientists 1,721–1,740 publications: 12 scientists 1,741–1,760 publications: 14 scientists 1,761–1,780 publications: 6 scientists 1,781–1,795 publications: 5 scientists 1,796+ publications: 100 scientists
101 publications 1,796+

This scientist: 575 publications — 69th percentile

69% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,796 publications or more.

Hiroshi Kunugi D-index placement in Medicine in 2026

The chart shows the D-index (discipline H-index) distribution of Medicine scientists ranked by Research.com in 2026. The highlighted bar marks where Hiroshi Kunugi sits on this spectrum.

70–71 D-Index: 226 scientists 72–73 D-Index: 391 scientists 74–75 D-Index: 574 scientists 76–77 D-Index: 730 scientists 78–79 D-Index: 891 scientists 80–81 D-Index: 972 scientists 82–83 D-Index: 1,027 scientists 84–85 D-Index: 1,003 scientists 86–87 D-Index: 960 scientists 88–89 D-Index: 970 scientists 90–91 D-Index: 922 scientists 92–93 D-Index: 839 scientists 94–95 D-Index: 808 scientists 96–97 D-Index: 779 scientists 98–99 D-Index: 668 scientists 100–101 D-Index: 611 scientists 102–103 D-Index: 630 scientists 104–105 D-Index: 513 scientists 106–107 D-Index: 541 scientists 108–109 D-Index: 445 scientists 110–111 D-Index: 429 scientists 112–113 D-Index: 400 scientists 114–115 D-Index: 393 scientists 116–117 D-Index: 318 scientists 118–119 D-Index: 302 scientists 120–121 D-Index: 287 scientists 122–123 D-Index: 255 scientists 124–125 D-Index: 256 scientists 126–127 D-Index: 252 scientists 128–129 D-Index: 230 scientists 130–131 D-Index: 179 scientists 132–133 D-Index: 168 scientists 134–135 D-Index: 163 scientists 136–137 D-Index: 159 scientists 138–139 D-Index: 134 scientists 140–141 D-Index: 134 scientists 142–143 D-Index: 118 scientists 144–145 D-Index: 109 scientists 146–147 D-Index: 106 scientists 148–149 D-Index: 74 scientists 150–151 D-Index: 79 scientists 152–153 D-Index: 80 scientists 154–155 D-Index: 87 scientists 156–157 D-Index: 57 scientists 158–159 D-Index: 74 scientists 160–161 D-Index: 69 scientists 162–163 D-Index: 60 scientists 164–165 D-Index: 53 scientists 166–167 D-Index: 39 scientists 168–169 D-Index: 42 scientists 170–171 D-Index: 32 scientists 172–173 D-Index: 39 scientists 174–175 D-Index: 40 scientists 176–177 D-Index: 28 scientists 178–179 D-Index: 19 scientists 180–181 D-Index: 23 scientists 182–183 D-Index: 31 scientists 184–185 D-Index: 18 scientists 186–187 D-Index: 20 scientists 188–189 D-Index: 22 scientists 190–191 D-Index: 13 scientists 192–193 D-Index: 21 scientists 194–195 D-Index: 12 scientists 196–197 D-Index: 12 scientists 198–199 D-Index: 14 scientists 200–201 D-Index: 15 scientists 202–203 D-Index: 13 scientists 204–205 D-Index: 10 scientists 206–207 D-Index: 8 scientists 208–209 D-Index: 4 scientists 210–211 D-Index: 12 scientists 212–213 D-Index: 11 scientists 214–215 D-Index: 10 scientists 216 D-Index: 4 scientists 217+ D-Index: 98 scientists
70 D-Index 217+

This scientist: 89 D-Index — 38th percentile

38% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 217 D-Index or more.

Overview

Hiroshi Kunugi is affiliated with Teikyo University in Japan, contributing extensively to the fields of medicine and neuroscience. Their research includes a strong focus on molecular biology, clinical psychology, cognitive neuroscience, physiology, and biological psychiatry.

The scientist's work covers a range of main topics, including:

  • Tryptophan and brain disorders
  • Stress responses and cortisol
  • Functional brain connectivity studies
  • Advanced neuroimaging techniques and applications
  • Anxiety, depression, psychometrics, treatment, cognitive processes
  • Advanced MRI techniques and applications
  • Diet and metabolism studies

Kunugi's recent papers demonstrate involvement in both psychiatric and biochemical research. Key publications include:

  • Improving polygenic prediction in ancestrally diverse populations, 2022, Nature Genetics
  • The Depression Anxiety Stress Scale 21: Development and Validation of the Depression Anxiety Stress Scale 8-Item in Psychiatric Patients and the General Public for Easier Mental Health Measurement in a Post COVID-19 World, 2021, International Journal of Environmental Research and Public Health
  • Propolis, Bee Honey, and Their Components Protect against Coronavirus Disease 2019 (COVID-19): A Review of In Silico, In Vitro, and Clinical Studies, 2021, Molecules
  • Association of Age, Antipsychotic Medication, and Symptom Severity in Schizophrenia With Proton Magnetic Resonance Spectroscopy Brain Glutamate Level, 2021, JAMA Psychiatry
  • Association between vascular endothelial growth factor-mediated blood-brain barrier dysfunction and stress-induced depression, 2022, Molecular Psychiatry

The frequent venues where Kunugi publishes include:

  • Neuropsychopharmacology Reports
  • International Journal of Environmental Research and Public Health
  • Psychiatry and Clinical Neurosciences
  • The International Journal of Neuropsychopharmacology
  • Molecular Psychiatry

Frequent collaborators in their research are:

  • Kotaro Hattori
  • Shinsuke Hidese
  • Miho Ota
  • Amira Mohammed Ali
  • Hiroaki Hori

Best Publications

  • BDNF function and intracellular signaling in neurons.

    Tadahiro Numakawa;Shingo Suzuki;Emi Kumamaru;Naoki Adachi

  • Chronic restraint stress causes anxiety- and depression-like behaviors, downregulates glucocorticoid receptor expression, and attenuates glutamate release induced by brain-derived neurotrophic factor in the prefrontal cortex

    Shuichi Chiba;Tadahiro Numakawa;Midori Ninomiya;Misty C. Richards

  • Possible association of Bifidobacterium and Lactobacillus in the gut microbiota of patients with major depressive disorder

    Emiko Aizawa;Hirokazu Tsuji;Takashi Asahara;Takuya Takahashi

  • Evidence of novel neuronal functions of dysbindin, a susceptibility gene for schizophrenia

    Tadahiro Numakawa;Yuki Yagasaki;Tetsuya Ishimoto;Takeya Okada

  • Serotonin transporter gene polymorphisms: ethnic difference and possible association with bipolar affective disorder

    H Kunugi;M Hattori;T Kato;M Tatsumi

  • Impaired feedback regulation of XBP1 as a genetic risk factor for bipolar disorder.

    Chihiro Kakiuchi;Kazuya Iwamoto;Mizuho Ishiwata;Miki Bundo

  • Impact of the DISC1 Ser704Cys polymorphism on risk for major depression, brain morphology and ERK signaling

    Ryota Hashimoto;Tadahiro Numakawa;Takashi Ohnishi;Emi Kumamaru

  • A novel polymorphism of the brain-derived neurotrophic factor (BDNF) gene associated with late-onset Alzheimer's disease.

    H Kunugi;A Ueki;M Otsuka;K Isse

  • Effects of a medium-chain triglyceride-based ketogenic formula on cognitive function in patients with mild-to-moderate Alzheimer's disease.

    Miho Ota;Junko Matsuo;Ikki Ishida;Harumasa Takano

  • Association between serotonin transporter gene polymorphism and anxiety-related traits.

    Satomi Katsuragi;Hiroshi Kunugi;Akira Sano;Takashi Tsutsumi

  • Assessment of the dexamethasone/CRH test as a state-dependent marker for hypothalamic-pituitary-adrenal (HPA) axis abnormalities in major depressive episode: a Multicenter Study.

    Hiroshi Kunugi;Itsuro Ida;Toshimi Owashi;Mahito Kimura

  • Low activity allele of catechol-O-methyltransferase gene associated with rapid cycling bipolar disorder

    G Kirov;K C Murphy;M J Arranz;I Jones

  • Additional support for schizophrenia linkage on chromosomes 6 and 8: A multicenter study

    Dieter B. Wildenauer;Sibylle G. Schwab;Margot Albus;Joachim Hallmayer

  • Interface between hypothalamic-pituitary-adrenal axis and brain-derived neurotrophic factor in depression

    Hiroshi Kunugi;Hiroaki Hori;Naoki Adachi;Tadahiro Numakawa

  • Glucocorticoid receptor interaction with TrkB promotes BDNF-triggered PLC-γ signaling for glutamate release via a glutamate transporter

    Tadahiro Numakawa;Emi Kumamaru;Naoki Adachi;Yuki Yagasaki

  • Increased cerebrospinal fluid interleukin-6 levels in patients with schizophrenia and those with major depressive disorder

    Daimei Sasayama;Kotaro Hattori;Chisato Wakabayashi;Toshiya Teraishi

  • The association between the Val158Met polymorphism of the catechol-O-methyl transferase gene and morphological abnormalities of the brain in chronic schizophrenia.

    Takashi Ohnishi;Ryota Hashimoto;Takeyuki Mori;Kiyotaka Nemoto

  • Glucocorticoid Attenuates Brain-Derived Neurotrophic Factor-Dependent Upregulation of Glutamate Receptors via the Suppression of microRNA-132 Expression

    H. Kawashima;T. Numakawa;E. Kumamaru;N. Adachi

  • Brain Cannabinoid CB2 Receptor in Schizophrenia

    Hiroki Ishiguro;Yasue Horiuchi;Maya Ishikawa;Minori Koga

  • New insight in expression, transport, and secretion of brain-derived neurotrophic factor: Implications in brain-related diseases

    Naoki Adachi;Tadahiro Numakawa;Misty Richards;Shingo Nakajima

Frequent Co-Authors

Hiroaki Hori
Hiroaki Hori Tokyo Medical and Dental University
Kotaro Hattori
Kotaro Hattori National Center of Neurology and Psychiatry
Shinichiro Nanko
Shinichiro Nanko Teikyo University
Ryota Hashimoto
Ryota Hashimoto National Center of Neurology and Psychiatry
Nakao Iwata
Nakao Iwata Fujita Health University
Norio Ozaki
Norio Ozaki Nagoya University
Tadafumi Kato
Tadafumi Kato Juntendo University
Noriko Sato
Noriko Sato Tokyo Medical and Dental University
Takeo Yoshikawa
Takeo Yoshikawa RIKEN Center for Brain Science
Tadao Arinami
Tadao Arinami University of Tsukuba

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