World's Best Scientists 2026 revealed!
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Medicine
Japan
2023

D-Index & Metrics

Medicine

D-Index
153
Citations
115768
World Ranking
1019
National Ranking
17

Ryozo Nagai 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 Ryozo Nagai 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: 610 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: 1,621 publications — 99th percentile

99% of scientists in this discipline score the same or lower.

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

Ryozo Nagai 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 Ryozo Nagai 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: 399 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: 153 D-Index — 95th percentile

95% 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

Ryozo Nagai is affiliated with Jichi Medical University in Japan. Their academic contributions span various aspects of medical research, although specific details about the topics, fields of study, or publication venues are not documented in the available data.

There are no recorded recent papers or co-authors linked to Ryozo Nagai in the provided information. Similarly, no information regarding published books or frequent publication venues has been noted.

The scientist's profile does not list any awards or honors received, nor does it specify main research topics or subfields within their area of expertise.

While detailed data on research output and collaborations is limited, Ryozo Nagai's professional role at a Japanese medical university suggests an involvement in clinical or academic medical science, consistent with the typical research environment of such institutions.

Best Publications

  • The fat-derived hormone adiponectin reverses insulin resistance associated with both lipoatrophy and obesity

    T. Yamauchi;J. Kamon;H. Waki;Y. Terauchi

  • Adiponectin stimulates glucose utilization and fatty-acid oxidation by activating AMP-activated protein kinase

    T Yamauchi;J Kamon;Y Minokoshi;Y Ito

  • Cloning of adiponectin receptors that mediate antidiabetic metabolic effects

    Toshimasa Yamauchi;Junji Kamon;Yusuke Ito;Atsushi Tsuchida

  • Mutation of the mouse klotho gene leads to a syndrome resembling ageing

    Makoto Kuro-o;Yutaka Matsumura;Hiroki Aizawa;Hiroshi Kawaguchi

  • CD8 + effector T cells contribute to macrophage recruitment and adipose tissue inflammation in obesity

    Satoshi Nishimura;Ichiro Manabe;Mika Nagasaki;Koji Eto

  • Disruption of adiponectin causes insulin resistance and neointimal formation.

    Naoto Kubota;Yasuo Terauchi;Toshimasa Yamauchi;Tetsuya Kubota

  • Hematopoietic stem cells differentiate into vascular cells that participate in the pathogenesis of atherosclerosis

    Masataka Sata;Akio Saiura;Atsushi Kunisato;Akihiro Tojo

  • PPARγ Mediates High-Fat Diet–Induced Adipocyte Hypertrophy and Insulin Resistance

    Naoto Kubota;Yasuo Terauchi;Hiroshi Miki;Hiroyuki Tamemoto;Hiroyuki Tamemoto

  • Targeted disruption of AdipoR1 and AdipoR2 causes abrogation of adiponectin binding and metabolic actions.

    Toshimasa Yamauchi;Yasunori Nio;Toshiyuki Maki;Masaki Kobayashi

  • Elevated blood pressure and craniofacial abnormalities in mice deficient in endothelin-1.

    Kurihara Y;Kurihara H;Suzuki H;Suzuki H;Kodama T

  • Impaired Multimerization of Human Adiponectin Mutants Associated with Diabetes MOLECULAR STRUCTURE AND MULTIMER FORMATION OF ADIPONECTIN

    Hironori Waki;Toshimasa Yamauchi;Junji Kamon;Yusuke Ito

  • Globular Adiponectin Protected ob/ob Mice from Diabetes and ApoE-deficient Mice from Atherosclerosis

    Toshimasa Yamauchi;Junji Kamon;Hironori Waki;Yasushi Imai

  • Role of Adiponectin in Preventing Vascular Stenosis THE MISSING LINK OF ADIPO-VASCULAR AXIS

    Morihiro Matsuda;Iichiro Shimomura;Masataka Sata;Yukio Arita

  • Overexpression of Monocyte Chemoattractant Protein-1 in Adipose Tissues Causes Macrophage Recruitment and Insulin Resistance

    Nozomu Kamei;Kazuyuki Tobe;Ryo Suzuki;Mitsuru Ohsugi

  • Adiponectin Stimulates AMP-Activated Protein Kinase in the Hypothalamus and Increases Food Intake

    Naoto Kubota;Wataru Yano;Tetsuya Kubota;Tetsuya Kubota;Toshimasa Yamauchi

  • Genetic variation in the gene encoding adiponectin is associated with an increased risk of type 2 diabetes in the japanese population

    Kazuo Hara;Philippe Boutin;Yasumichi Mori;Kazuyuki Tobe

  • Measurement of the High–Molecular Weight Form of Adiponectin in Plasma Is Useful for the Prediction of Insulin Resistance and Metabolic Syndrome

    Kazuo Hara;Momoko Horikoshi;Toshimasa Yamauchi;Hirokazu Yago

  • IDENTIFICATION OF THE HUMAN KLOTHO GENE AND ITS TWO TRANSCRIPTS ENCODING MEMBRANE AND SECRETED KLOTHO PROTEIN

    Yutaka Matsumura;Hiroki Aizawa;Takako Shiraki-Iida;Ryozo Nagai

  • The Mechanisms by Which Both Heterozygous Peroxisome Proliferator-activated Receptor γ (PPARγ) Deficiency and PPARγ Agonist Improve Insulin Resistance

    Toshimasa Yamauchi;Junji Kamon;Hironori Waki;Koji Murakami

  • Mutation of the mouse klotho gene leads to a syndrome resembling ageing

    M. Kuro-o;Y. Matsumura;H. Arawa;H. Kawaguchi

Frequent Co-Authors

Yasunobu Hirata
Yasunobu Hirata University of Tokyo
Ichiro Manabe
Ichiro Manabe Chiba University
Yoshio Yazaki
Yoshio Yazaki University of Tokyo
Masataka Sata
Masataka Sata University of Tokushima
Issei Komuro
Issei Komuro University of Tokyo
Masahiko Kurabayashi
Masahiko Kurabayashi Gunma University
Takashi Kadowaki
Takashi Kadowaki Toranomon Hospital
Mitsuaki Isobe
Mitsuaki Isobe Tokyo Medical and Dental University
Makoto Kuro-o
Makoto Kuro-o Jichi Medical University
Kazuyuki Tobe
Kazuyuki Tobe University of Toyama

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