World's Best Scientists 2026 revealed!
Masaki Kitajima

Masaki Kitajima

D-Index & Metrics

Medicine

D-Index
87
Citations
26567
World Ranking
13694
National Ranking
406

Masaki Kitajima 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 Masaki Kitajima 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: 1,008 publications — 94th percentile

94% of scientists in this discipline score the same or lower.

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

Masaki Kitajima 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 Masaki Kitajima 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: 87 D-Index — 34th percentile

34% of scientists in this discipline score the same or lower.

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

Overview

Masaki Kitajima was affiliated with Keio University in Japan and contributed extensively to the fields of medicine and biochemistry, genetics, and molecular biology throughout their career. Their research primarily focused on neurology, pathology and forensic medicine, molecular biology, immunology, and genetics, with a notable emphasis on neurological disorders.

The scientist's work covered various main topics, including:

  • Multiple Sclerosis Research Studies
  • Neuroinflammation and Neurodegeneration Mechanisms
  • Peripheral Neuropathies and Disorders
  • RNA regulation and disease
  • Connexins and lens biology
  • Immune Response and Inflammation
  • Parkinson's Disease Mechanisms and Treatments

Among their recent papers were:

  • Oligodendroglial connexin 47 regulates neuroinflammation upon autoimmune demyelination in a novel mouse model of multiple sclerosis, 2020, Proceedings of the National Academy of Sciences
  • Genetic factors for susceptibility to and manifestations of neuromyelitis optica, 2020, Annals of Clinical and Translational Neurology
  • HLA genotype-clinical phenotype correlations in multiple sclerosis and neuromyelitis optica spectrum disorders based on Japan MS/NMOSD Biobank data, 2021, Scientific Reports
  • RNA-binding protein altered expression and mislocalization in MS, 2020, Neurology Neuroimmunology & Neuroinflammation
  • Connexins in neuromyelitis optica: a link between astrocytopathy and demyelination, 2020, Brain

Kitajima collaborated frequently with a core group of researchers. These frequent co-authors included Noriko Isobe, Jun-ichi Kira, Mitsuru Watanabe, Ryo Yamasaki, and Takuya Matsushita.

The body of their work was often published in reputable scientific venues, some of which they contributed to multiple times. These frequent publication venues included European Urology, Annals of Clinical and Translational Neurology, Scientific Reports, Clinical and Experimental Neuroimmunology, and Neurology.

Throughout their career, Kitajima's research addressed mechanisms underlying neuroinflammation, demyelination conditions such as multiple sclerosis and neuromyelitis optica, and the molecular biology processes connected to immunological responses in the nervous system.

Best Publications

  • Improvement in the Results of Surgical Treatment of Advanced Squamous Esophageal Carcinoma During 15 Consecutive Years

    Nobutoshi Ando;Soji Ozawa;Yuko Kitagawa;Yotaro Shinozawa

  • Scarless Endoscopic Thyroidectomy: Breast Approach for Better Cosmesis

    Masahiro Ohgami;Seiichiro Ishii;Yoshito Arisawa;Tai Ohmori

  • Induction of Heme Oxygenase-1 Suppresses Venular Leukocyte Adhesion Elicited by Oxidative Stress Role of Bilirubin Generated by the Enzyme

    Shinobu Hayashi;Rina Takamiya;Tokio Yamaguchi;Kenji Matsumoto

  • The role of the sentinel lymph node in gastrointestinal cancer.

    Yuko Kitagawa;Hirofumi Fujii;Makio Mukai;Tetsuro Kubota

  • Sentinel Node Mapping for Gastric Cancer: A Prospective Multicenter Trial in Japan

    Yuko Kitagawa;Hiroya Takeuchi;Yu Takagi;Shoji Natsugoe

  • Radio-guided sentinel node detection for gastric cancer

    Y Kitagawa;H Fujii;M Mukai;T Kubota

  • Curative Laparoscopic Surgery for Early Gastric Cancer: Five Years Experience

    M Ohgami;Y Otani;T Furukawa;T Kubota

  • Operative indications for relatively small (2-5 cm) gastrointestinal stromal tumor of the stomach based on analysis of 60 operated cases

    Yoshihide Otani;Toshiharu Furukawa;Masashi Yoshida;Yoshiro Saikawa

  • Increased formation of oxidative DNA damage, 8-hydroxy-2'-deoxyguanosine, in human breast cancer tissue and its relationship to GSTP1 and COMT genotypes.

    Akira Matsui;Tadashi Ikeda;Kohji Enomoto;Kanae Hosoda

  • Randomized controlled trial of laparoscopic versus open colectomy for advanced colorectal cancer

    H. Hasegawa;Y. Kabeshima;M. Watanabe;S. Yamamoto

  • Nude Mouse Metastatic Models of Human Stomach Cancer Constructed Using Orthotopic Implantation of Histologically Intact Tissue

    Toshiharu Furukawa;Xinyu Fu;Tetsuro Kubota;Masahiko Watanabe

  • Clinical significance of circulating tumor cells in blood from patients with gastrointestinal cancers.

    Kunihiko Hiraiwa;Hiroya Takeuchi;Hirotoshi Hasegawa;Yoshiro Saikawa

  • Cloning, Expression, and Characterization of a Novel UDP-galactose:β-N-Acetylglucosamine β1,3-Galactosyltransferase (β3Gal-T5) Responsible for Synthesis of Type 1 Chain in Colorectal and Pancreatic Epithelia and Tumor Cells Derived Therefrom

    Soichiro Isshiki;Akira Togayachi;Takashi Kudo;Shoko Nishihara

  • Curative laparoscopic surgery for early gastric cancer : Five years experience. Commentary

    M. Ohgami;Y. Otani;K. Kumai;T. Kubota

  • Vascular Endothelial Growth Factor Expression Predicts Outcome and Lymph Node Metastasis in Squamous Cell Carcinoma of the Esophagus

    Chih-Horng Shih;Soji Ozawa;Nobutoshi Ando;Masakazu Ueda

  • Prognostic significance of tissue factor in pancreatic ductal adenocarcinoma.

    Nobuhiro Nitori;Yoshinori Ino;Yukihiro Nakanishi;Tesshi Yamada

  • Identification of three human type-II classic cadherins and frequent heterophilic interactions between different subclasses of type-II classic cadherins.

    Yutaka Shimoyama;Gozoh Tsujimoto;Masaki Kitajima;Michiya Natori

  • Interleukin 1 receptor blockade reduces tumor necrosis factor production, tissue injury, and mortality after hepatic ischemia-reperfusion in the rat

    Masaya Shito;Go Wakabayashi;Masakazu Ueda;Motohide Shimazu

  • Overexpression of leucine‐rich repeat‐containing G protein‐coupled receptor 5 in colorectal cancer

    Hiroshi Uchida;Ken Yamazaki;Mariko Fukuma;Taketo Yamada

  • Orthotopic transplantation of histologically intact clinical specimens of stomach cancer to nude mice: Correlation of metastatic sites in mouse and individual patient donors

    Toshiharu Furukawa;Tetsuro Kubota;Masahiko Watanabe;Masaki Kitajima

Frequent Co-Authors

Yuko Kitagawa
Yuko Kitagawa Keio University
Hiromasa Ishii
Hiromasa Ishii Keio University
Seiichiro Yamamoto
Seiichiro Yamamoto National Cancer Research Institute, UK
Toshifumi Hibi
Toshifumi Hibi Kitasato University
Michiie Sakamoto
Michiie Sakamoto Keio University
Shin Takahashi
Shin Takahashi Ehime University
Masaharu Seno
Masaharu Seno Okayama University
Setsuo Hirohashi
Setsuo Hirohashi National Cancer Research Institute, UK
Go Wakabayashi
Go Wakabayashi Iwate Medical University
Yasunori Okada
Yasunori Okada Juntendo University

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Interested in healthcare but unsure if a traditional medical doctorate is right for you? There are flexible online options that open doors to rewarding medical careers. Aspiring nurses can save on tuition while earning degrees from accredited institutions through the cheapest online nursing program options. These programs deliver foundational knowledge and clinical skills at a lower cost, making nursing more accessible.

If you’re already a registered nurse, affordable rn to bsn programs allow you to advance your qualifications entirely online, preparing you for senior roles or specialized practice. For those looking to move into leadership or academia, an online phd nursing can elevate your career to the highest level and support research opportunities.

Even non-nurses can transition into the field through online direct entry msn programs for non-nurses. These accelerated options allow graduates from other disciplines to efficiently pursue a master’s in nursing and unlock fast-tracked career pathways. Online healthcare degrees provide the flexibility needed to balance study with work or family–making advanced medical education more achievable than ever.

Best Scientists Citing Masaki Kitajima

Recently Published Articles