World's Best Scientists 2026 revealed!
Hiroaki Masuzaki

Hiroaki Masuzaki

D-Index & Metrics

Medicine

D-Index
74
Citations
23968
World Ranking
19327
National Ranking
618

Hiroaki Masuzaki 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 Hiroaki Masuzaki 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: 335 publications — 24th percentile

24% of scientists in this discipline score the same or lower.

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

Hiroaki Masuzaki 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 Hiroaki Masuzaki 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: 74 D-Index — 4th percentile

4% of scientists in this discipline score the same or lower.

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

Overview

Hiroaki Masuzaki is affiliated with the University of the Ryukyus in Japan. Their research spans medicine with a particular focus on physiology, endocrinology, diabetes and metabolism, surgery, immunology, and cardiology and cardiovascular medicine.

The main topics Masuzaki has worked on include:

  • T-cell and Retrovirus Studies
  • Diet and metabolism studies
  • Vector-Borne Animal Diseases
  • Animal Disease Management and Epidemiology
  • Diabetes Treatment and Management
  • Nutritional Studies and Diet
  • Cardiovascular Disease and Adiposity

Masuzaki has contributed research published in several recurrent academic venues, including:

  • Diabetology International
  • Scientific Reports
  • Endocrine Journal
  • Research Square
  • Journal of Clinical Medicine

Frequent collaborators in Masuzaki's work include:

  • Michio Shimabukuro
  • Takuya Fukushima
  • Tsugumi Uema
  • Sawako Nakachi
  • Hayato Tanabe

Some notable recent publications by and associated with their research include:

  • Factors Associated with Risk of Diabetic Complications in Novel Cluster-Based Diabetes Subgroups: A Japanese Retrospective Cohort Study (2020, Journal of Clinical Medicine)
  • Extra-virgin olive oil and the gut-brain axis: influence on gut microbiota, mucosal immunity, and cardiometabolic and cognitive health (2020, Nutrition Reviews)
  • Novel strategies for glycaemic control and preventing diabetic complications applying the clustering-based classification of adult-onset diabetes mellitus: A perspective (2021, Diabetes Research and Clinical Practice)
  • A nutritional assessment tool, GNRI, predicts sarcopenia and its components in type 2 diabetes mellitus: A Japanese cross-sectional study (2023, Frontiers in Nutrition)
  • Metabolic surgery in treatment of obese Japanese patients with type 2 diabetes: a joint consensus statement from the Japanese Society for Treatment of Obesity, the Japan Diabetes Society, and the Japan Society for the Study of Obesity (2021, Diabetology International)

Best Publications

  • A Transgenic Model of Visceral Obesity and the Metabolic Syndrome

    Hiroaki Masuzaki;Janice Paterson;Hiroshi Shinyama;Nicholas M. Morton

  • NONADIPOSE TISSUE PRODUCTION OF LEPTIN : LEPTIN AS A NOVEL PLACENTA-DERIVED HORMONE IN HUMANS

    Hiroaki Masuzaki;Yoshihiro Ogawa;Norimasa Sagawa;Kiminori Hosoda

  • Human Obese Gene Expression: Adipocyte-Specific Expression and Regional Differences in the Adipose Tissue

    Hiroaki Masuzaki;Yoshihiro Ogawa;Naohi Isse;Noriko Satoh

  • Pathophysiological role of leptin in obesity-related hypertension

    Megumi Aizawa-Abe;Yoshihiro Ogawa;Hiroaki Masuzaki;Ken Ebihara

  • Novel Adipose Tissue–Mediated Resistance to Diet-Induced Visceral Obesity in 11β-Hydroxysteroid Dehydrogenase Type 1–Deficient Mice

    Nicholas M. Morton;Janice M. Paterson;Hiroaki Masuzaki;Megan C. Holmes

  • Changes in Intra-Abdominal Visceral Fat and Serum Leptin Levels in Patients With Obstructive Sleep Apnea Syndrome Following Nasal Continuous Positive Airway Pressure Therapy

    Kazuo Chin;Kouichi Shimizu;Takaya Nakamura;Noboru Narai

  • Transgenic amplification of glucocorticoid action in adipose tissue causes high blood pressure in mice

    Hiroaki Masuzaki;Hiroshi Yamamoto;Christopher J. Kenyon;Joel K. Elmquist

  • Role of premature leptin surge in obesity resulting from intrauterine undernutrition

    Shigeo Yura;Hiroaki Itoh;Norimasa Sagawa;Hiroshi Yamamoto

  • Augmented Placental Production of Leptin in Preeclampsia: Possible Involvement of Placental Hypoxia

    Hiroko Mise;Norimasa Sagawa;Tsunekazu Matsumoto;Shigeo Yura

  • Structural organization and chromosomal assignment of the human obese gene.

    Naohi Isse;Yoshihiro Ogawa;Naohisa Tamura;Hiroaki Masuzaki

  • Characterizaton of short isoforms of the leptin receptor in rat cerebral microvessels and of brain uptake of leptin in mouse models of obesity.

    Stanley M. Hileman;Dominique D. Pierroz;Hiroaki Masuzaki;Christian Bjørbæk

  • Molecular cloning of rat leptin receptor isoform complementary DNAs--identification of a missense mutation in Zucker fatty (fa/fa) rats.

    Kazuhiko Takaya;Yoshihiro Ogawa;Naohi Isse;Taku Okazaki

  • Transgenic Overexpression of Leptin Rescues Insulin Resistance and Diabetes in a Mouse Model of Lipoatrophic Diabetes

    Ken Ebihara;Yoshihiro Ogawa;Hiroaki Masuzaki;Mitsuyo Shintani

  • Molecular cloning of rat obese cDNA and augmented gene expression in genetically obese Zucker fatty (fa/fa) rats

    Yoshihiro Ogawa;Hiroaki Masuzaki;Naohi Isse;Taku Okazaki

  • Efficacy and Safety of Leptin-Replacement Therapy and Possible Mechanisms of Leptin Actions in Patients with Generalized Lipodystrophy

    Ken Ebihara;Toru Kusakabe;Masakazu Hirata;Hiroaki Masuzaki

  • Variations in the FTO gene are associated with severe obesity in the Japanese

    Kikuko Hotta;Yoshio Nakata;Tomoaki Matsuo;Seika Kamohara

  • Sympathetic activation of leptin via the ventromedial hypothalamus: leptin-induced increase in catecholamine secretion.

    Noriko Satoh;Yoshihiro Ogawa;Goro Katsuura;Yoshito Numata

  • Satiety effect and sympathetic activation of leptin are mediated by hypothalamic melanocortin system

    Noriko Satoh;Yoshihiro Ogawa;Goro Katsuura;Yoshito Numata

  • Increased glucose metabolism and insulin sensitivity in transgenic skinny mice overexpressing leptin.

    Yoshihiro Ogawa;Hiroaki Masuzaki;Kiminori Hosoda;Megumi Aizawa-Abe

  • Adipocyte-Specific Expression and Regional Differences in the Adipose Tissue

    Hiroaki Masuzaki;Yoshihiro Ogawa;Naohi Isse;Noriko Satoh

Frequent Co-Authors

Kazuwa Nakao
Kazuwa Nakao Kyoto University
Kiminori Hosoda
Kiminori Hosoda Kyoto University
Yoshihiro Ogawa
Yoshihiro Ogawa Kyushu University
Masataka Sata
Masataka Sata University of Tokushima
Masato Yoneda
Masato Yoneda Yokohama City University
Tohru Funahashi
Tohru Funahashi Osaka University
Yuji Matsuzawa
Yuji Matsuzawa Sumitomo Hospital
Atsushi Nakajima
Atsushi Nakajima Yokohama City University
Hironobu Yoshimatsu
Hironobu Yoshimatsu Oita University
Kiyoshi Mori
Kiyoshi Mori University of Shizuoka

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