World's Best Scientists 2026 revealed!

D-Index & Metrics

Biology and Biochemistry

D-Index
62
Citations
12674
World Ranking
10881
National Ranking
742

Overview

Chisei Ra is affiliated with Nihon University in Japan and conducts research primarily in the field of Medicine, with a significant focus on Surgery and Oncology. Their scholarly output includes 360 publications within Medicine, of which 118 pertain to Surgery and 75 to Oncology. Additional subfields of study include Pulmonary and Respiratory Medicine, Cardiology and Cardiovascular Medicine, and Biomedical Engineering.

Their research topics cover several areas including colorectal cancer surgical treatments, surgical simulation and training, cardiac, anesthesia and surgical outcomes, abdominal surgery and complications, colorectal cancer screening and detection, infection control and ventilation, and the impacts of COVID-19 on healthcare.

Chisei Ra's recent publications demonstrate involvement in various aspects of surgical methods and assessment. Notable papers include:

  • Fluorescence-guided surgery: comprehensive review (2023, BJS Open)
  • Development and validation of a recommended checklist for assessment of surgical videos quality: the LAParoscopic surgery Video Educational GuidelineS (LAP-VEGaS) video assessment tool (2020, Surgical Endoscopy)
  • Artificial intelligence indocyanine green (ICG) perfusion for colorectal cancer intra-operative tissue classification (2020, British journal of surgery)
  • Inter-user variation in the interpretation of near infrared perfusion imaging using indocyanine green in colorectal surgery (2021, Surgical Endoscopy)
  • COVID-19 and the treatment of acute appendicitis in Ireland: a new era or short-term pivot? (2020, Colorectal Disease)

Frequent co-authors collaborating with Chisei Ra include Mohammad Faraz Khan, Jeffrey Dalli, Niall Hardy, Alice Moynihan, and Philip D. McEntee.

The scientist's work is often published in journals specialized in colorectal and surgical disciplines. The main publication venues are:

  • Colorectal Disease
  • Mesentery and Peritoneum
  • Surgical Endoscopy
  • British journal of surgery
  • European Journal of Surgical Oncology

Chisei Ra's research covers applied and clinical aspects of surgery with interest in improving surgical techniques, educational tools for surgical video assessment, perfusion imaging interpretation, and the role of artificial intelligence in intra-operative tissue classification. The publications also reflect engagement with health care challenges linked to COVID-19 and its effects on surgical treatment pathways.

Best Publications

  • Expression of Mas-related gene X2 on mast cells is upregulated in the skin of patients with severe chronic urticaria

    Daisuke Fujisawa;Jun Ichi Kashiwakura;Hirohito Kita;Yusuke Kikukawa

  • IgE enhances Fc epsilon receptor I expression and IgE-dependent release of histamine and lipid mediators from human umbilical cord blood-derived mast cells: synergistic effect of IL-4 and IgE on human mast cell Fc epsilon receptor I expression and mediator release.

    Masao Yamaguchi;Koichi Sayama;Koji Yano;Chris S. Lantz

  • Cutting edge: VacA, a vacuolating cytotoxin of Helicobacter pylori, directly activates mast cells for migration and production of proinflammatory cytokines.

    Volaluck Supajatura;Hiroko Ushio;Akihiro Wada;Kinnosuke Yahiro

  • Establishment of a Human Allergy Model Using Human IL-3/GM-CSF–Transgenic NOG Mice

    Ryoji Ito;Takeshi Takahashi;Ikumi Katano;Kenji Kawai

  • Positive and Negative Regulation of Mast Cell Activation by Lyn via the FcεRI

    Wenbin Xiao;Hajime Nishimoto;Hong Hong;Jiro Kitaura

  • Fc epsilon RI signaling of mast cells activates intracellular production of hydrogen peroxide: role in the regulation of calcium signals.

    Yoshihiro Suzuki;Tetsuro Yoshimaru;Takashi Matsui;Toshio Inoue

  • Transcriptional Regulation of Fcgr2b Gene by Polymorphic Promoter Region and Its Contribution to Humoral Immune Responses

    Yan Xiu;Kazuhiro Nakamura;Masaaki Abe;Na Li

  • Tissue remodeling induced by hypersecreted epidermal growth factor and amphiregulin in the airway after an acute asthma attack

    Yukinori Enomoto;Kanami Orihara;Tetsuya Takamasu;Akio Matsuda

  • Activation of human mast cells through the platelet-activating factor receptor

    Naoki Kajiwara;Tomomi Sasaki;Peter Bradding;Glenn Cruse

  • The FcϵRIβ Immunoreceptor Tyrosine-based Activation Motif Exerts Inhibitory Control on MAPK and IκB Kinase Phosphorylation and Mast Cell Cytokine Production *

    Yasuko Furumoto;Satoshi Nunomura;Tomoyoshi Terada;Juan Rivera

  • A20 inhibits toll-like receptor 2- and 4-mediated interleukin-8 synthesis in airway epithelial cells.

    Yasuhiro Gon;Yasukiyo Asai;Shu Hashimoto;Kenji Mizumura

  • Mast cell maturation is driven via a group III phospholipase A2-prostaglandin D2–DP1 receptor paracrine axis

    Yoshitaka Taketomi;Yoshitaka Taketomi;Noriko Ueno;Takumi Kojima;Hiroyasu Sato;Hiroyasu Sato

  • FcεRI-mediated thymic stromal lymphopoietin production by interleukin-4-primed human mast cells

    Y. Okayama;S. Okumura;H. Sagara;K. Yuki

  • Enhancement of drug delivery to bone : Characterization of human tissue-nonspecific alkaline phosphatase tagged with an acidic oligopeptide

    Tatsuo Nishioka;Shunji Tomatsu;Monica A. Gutierrez;Ken-ichi Miyamoto

  • Role of Oxidants in Mast Cell Activation

    Yoshihiro Suzuki;Tetsuro Yoshimaru;Toshio Inoue;Osamu Niide

  • Infantile Hypophosphatasia: Transplantation Therapy Trial Using Bone Fragments and Cultured Osteoblasts

    Richard A. Cahill;Deborah Wenkert;Sharon A. Perlman;Ann Steele

  • Significantly High Levels of Anti-dsDNA Immunoglobulin E in Sera and the Ability of dsDNA to Induce the Degranulation of Basophils from Chronic Urticaria Patients

    Yuko Hatada;Jun-ichi Kashiwakura;Koremasa Hayama;Daisuke Fujisawa

  • The Src family kinase Hck regulates mast cell activation by suppressing an inhibitory Src family kinase Lyn

    Hong Hong;Jiro Kitaura;Wenbin Xiao;Vaclav Horejsi

  • A Novel −66T/C Polymorphism in FcεRI α-Chain Promoter Affecting the Transcription Activity: Possible Relationship to Allergic Diseases

    Masanari Hasegawa;Chiharu Nishiyama;Makoto Nishiyama;Yushiro Akizawa

  • Dapsone suppresses human neutrophil superoxide production and elastase release in a calcium-dependent manner.

    T. Suda;Y. Suzuki;T. Matsui;T. Inoue

Frequent Co-Authors

Yoshimichi Okayama
Yoshimichi Okayama Nihon University
Ko Okumura
Ko Okumura Juntendo University
Hirohisa Saito
Hirohisa Saito Juntendo University
Hideoki Ogawa
Hideoki Ogawa Juntendo University
Toshiaki Kawakami
Toshiaki Kawakami University of California, San Diego
Yuko Kawakami
Yuko Kawakami La Jolla Institute For Allergy & Immunology
Akira Matsuda
Akira Matsuda Juntendo University
Kenji Matsumoto
Kenji Matsumoto Izumi Municipal Hospital
Makoto Makishima
Makoto Makishima Nihon University
Makoto Nishiyama
Makoto Nishiyama University of Tokyo

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