World's Best Scientists 2026 revealed!
Masaya Tohyama

Masaya Tohyama

Award Badge
Medicine
Japan
2023

D-Index & Metrics

Medicine

D-Index
122
Citations
53237
World Ranking
3488
National Ranking
67

Masaya Tohyama 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 Masaya Tohyama 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: 1,038 publications — 95th percentile

95% of scientists in this discipline score the same or lower.

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

Masaya Tohyama 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 Masaya Tohyama 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: 122 D-Index — 83rd percentile

83% of scientists in this discipline score the same or lower.

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

Research.com Recognitions

  • 2023 - Research.com Medicine in Japan Leader Award

Overview

Masaya Tohyama is affiliated with Kindai University in Japan and contributes to the fields of Neuroscience as well as Biochemistry, Genetics and Molecular Biology. Their research spans several subfields including Molecular Biology, Behavioral Neuroscience, Biological Psychiatry, Neurology, and Endocrinology, Diabetes and Metabolism.

Their recent scholarly output includes studies published in Developmental Neurobiology, Frontiers in Aging Neuroscience, and Cureus. Notable papers feature topics related to brain development, inflammation, stress, and pharmacological effects of natural compounds.

  • Coactivator-associated arginine methyltransferase 1 controls oligodendrocyte differentiation in the corpus callosum during early brain development, 2022, Developmental Neurobiology
  • Involvement of inflammatory responses in the brain to the onset of major depressive disorder due to stress exposure, 2022, Frontiers in Aging Neuroscience
  • Kamishoyosan Normalizes Dendritic Spine Morphology in the Medial Prefrontal Cortex by Regulating microRNA-18 and Glucocorticoid Receptor Expressions in Postmenopausal Chronic Stress-Exposed Mice, 2024, Cureus

Their research addresses a range of scientific topics such as Stress Responses and Cortisol, Cancer-related gene regulation, Epigenetics and DNA Methylation, Tryptophan and brain disorders, Neuroinflammation and Neurodegeneration Mechanisms, Menopause: Health Impacts and Treatments, and Pharmacological Effects of Natural Compounds.

  • Stress Responses and Cortisol
  • Cancer-related gene regulation
  • Epigenetics and DNA Methylation
  • Tryptophan and brain disorders
  • Neuroinflammation and Neurodegeneration Mechanisms
  • Menopause: Health Impacts and Treatments
  • Pharmacological Effects of Natural Compounds

Masaya Tohyama has collaborated frequently with researchers including Yugo Ishino, Shoko Shimizu, Shingo Miyata, Yoshihisa Koyama, and Takashi Takeda. Collaboration has focused on topics intersecting molecular mechanisms of brain function, stress-related disorders, and the neurobiology of aging.

  • Yugo Ishino
  • Shoko Shimizu
  • Shingo Miyata
  • Yoshihisa Koyama
  • Takashi Takeda

The diversity of their contributions is reflected in the variety of publication venues, which indicate a cross-disciplinary engagement spanning developmental neurobiology, aging neuroscience, and clinical pharmacology.

Best Publications

  • Activation of caspase-12, an endoplastic reticulum (ER) resident caspase, through tumor necrosis factor receptor-associated factor 2-dependent mechanism in response to the ER stress.

    Takunari Yoneda;Kazunori Imaizumi;Kayoko Oono;Daishi Yui

  • Distribution of the histaminergic neuron system in the central nervous system of rats; a fluorescent immunohistochemical analysis with histidine decarboxylase as a marker.

    Takehiko Watanabe;Yoshitaka Taguchi;Sadao Shiosaka;Junya Tanaka

  • Involvement of caspase-4 in endoplasmic reticulum stress-induced apoptosis and Aβ-induced cell death

    Junichi Hitomi;Junichi Hitomi;Taiichi Katayama;Taiichi Katayama;Yutaka Eguchi;Yutaka Eguchi;Takashi Kudo

  • An arcuato-paraventricular and -dorsomedial hypothalamic neuropeptide Y-containing system which lacks noradrenaline in the rat.

    F.L. Bai;M. Yamano;Y. Shiotani;P.C. Emson

  • Tumor Necrosis Factor Induces Bcl-2 and Bcl-x Expression through NFκB Activation in Primary Hippocampal Neurons

    Michio Tamatani;Yong Ho Che;Hideo Matsuzaki;Satoshi Ogawa

  • The p75 receptor acts as a displacement factor that releases Rho from Rho-GDI.

    Toshihide Yamashita;Masaya Tohyama

  • Presenilin-1 mutations downregulate the signalling pathway of the unfolded-protein response

    Taiichi Katayama;Kazunori Imaizumi;Naoya Sato;Ko Miyoshi

  • Distribution of calcitonin gene-related peptide in the rat peripheral nervous system with reference to its coexistence with substance P.

    Y. Lee;K. Takami;Y. Kawai;S. Girgis

  • The p75 receptor transduces the signal from myelin-associated glycoprotein to Rho

    Toshihide Yamashita;Haruhisa Higuchi;Masaya Tohyama

  • An intracellular protein that binds amyloid-β peptide and mediates neurotoxicity in Alzheimer's disease

    Shi Du Yan;Jin Fu;Claudio Soto;Xi Chen

  • Induction of aquaporin-4 water channel mRNA after focal cerebral ischemia in rat.

    Masaaki Taniguchi;Toshihide Yamashita;Eiji Kumura;Michio Tamatani

  • Topographic localization of calcitonin gene-related peptide in the rat brain: An immunohistochemical analysis

    Y. Kawai;K. Takami;S. Shiosaka;P.C. Emson

  • Disrupted-In-Schizophrenia 1 , a candidate gene for schizophrenia, participates in neurite outgrowth

    K Miyoshi;A Honda;K Baba;M Taniguchi

  • Coexistence of calcitonin gene-related peptide and substance P-like peptide in single cells of the trigeminal ganglion of the rat: immunohistochemical analysis.

    Y. Lee;Y. Kawai;S. Shiosaka;K. Takami

  • Induction of neuronal death by ER stress in Alzheimer's disease.

    Taiichi Katayama;Kazunori Imaizumi;Takayuki Manabe;Junichi Hitomi

  • Apoptosis induced by endoplasmic reticulum stress depends on activation of caspase-3 via caspase-12.

    Junichi Hitomi;Taiichi Katayama;Manabu Taniguchi;Akiko Honda

  • The differential expression patterns of messenger RNAs encoding non-N-methyl-d-aspartate glutamate receptor subunits (GluR1–4) in the rat brain

    K. Sato;H. Kiyama;M. Tohyama

  • Stress-induced c-fos expression in the rat brain: activation mechanism of sympathetic pathway.

    Emiko Senba;Keiji Matsunaga;Masaya Tohyama;Koichi Noguchi

  • Spinal projections from the lower brain stem in the cat as demonstrated by the horseradish peroxidase technique. I. Origins of the reticulospinal tracts and their funicular trajectories

    Masaya Tohyama;Kazuya Sakai;Denise Salvert;Monique Touret

  • Ontogeny of substance P-containing neuron system of the rat: immunohistochemical analysis--I. Forebrain and upper brain stem.

    S. Inagaki;M. Sakanaka;S. Shiosaka;E. Senba

Frequent Co-Authors

Hiroshi Kiyama
Hiroshi Kiyama Nagoya University
Sadao Shiosaka
Sadao Shiosaka Osaka University
Emiko Senba
Emiko Senba Osaka University
Taiichi Katayama
Taiichi Katayama Osaka University
Shinobu Inagaki
Shinobu Inagaki Osaka University
Akio Wanaka
Akio Wanaka Nara Medical University
Masahiro Sakanaka
Masahiro Sakanaka Ehime University
Makoto Sato
Makoto Sato University of Fukui
Toshihide Yamashita
Toshihide Yamashita Osaka University
Kazunori Imaizumi
Kazunori Imaizumi Hiroshima University

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