WATANABE Kenta

写真a

Affiliation

Hospital  Internal MedichineⅠ 

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Research Interests 【 display / non-display 】

  • Gastroenterology

  • 消化管

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Graduating School 【 display / non-display 】

  • 2006.04
    -
    2012.03

    Akita University   Faculty of Medicine   Graduated

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Graduate School 【 display / non-display 】

  • 2019.04
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    2022.09

    Akita University  Graduate School, Division of Medicine  Doctor's Course  Completed

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Campus Career 【 display / non-display 】

  • 2026.06
    -
    Now

    Akita University   Hospital   Internal MedichineⅠ   Assistant Professor  

  • 2022.12
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    2026.05

    Akita University   Hospital   Center for Medical Education and Training   Specially-appointed Assistant Professor  

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Research Areas 【 display / non-display 】

  • Life Science / Gastroenterology

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Thesis for a degree 【 display / non-display 】

  • Potent Acid Suppression With Vonoprazan vs Proton Pump Inhibitors Does Not Have Higher Association With Clostridioides difficile Infection

    Kenta Watanabe, Yosuke Shimodaira, So Takahashi, Sho Fukuda, Shigeto Koizumi, Tamotsu Matsuhashi, Katsunori Iijima 

    The American Journal of Gastroenterology  116 ( 8 ) 1632 - 1637   2022.09  [Refereed]

    Domestic Co-author

    DOI

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Research Achievements 【 display / non-display 】

    ◆Original paper【 display / non-display 】

  • Natural history of Barrett's esophagus over a 10-year period: a longitudinal endoscopic study in a Japanese population

    Kenta Watanabe, et al.

    Journal of Gastroenterology ( Journal of Gastroenterology )    2026.08  [Refereed]

    Research paper (journal)   Domestic Co-author

    DOI

  • Hemostatic Response to Palliative Radiotherapy for Bleeding Gastric Cancer and Pretreatment Endoscopic Characteristics: A Retrospective Cohort Study

    Kimura K, Watanabe K, et al.

    Internal Medicine ( 一般社団法人 日本内科学会 )  advpub ( 0 )   2026.07  [Refereed]

    Research paper (journal)   Domestic Co-author

    <p><b>Objective </b>As no prior studies have examined the association between the pretreatment endoscopic or histopathological findings and the hemostatic efficacy of palliative radiotherapy (pRT), we investigated the predictors of response and rebleeding in gastric cancer (GC). </p><p><b>Methods </b>This retrospective study included consecutive patients with bleeding GC who underwent hemostatic pRT between 2015 and 2023. The primary endpoint was the hemostatic response within 4 weeks after pRT, defined by a composite endpoint: hemoglobin ≥8.0 g/dL, ≥50% reduction in red blood cell transfusion versus the prior 4 weeks, no salvage hemostatic intervention, and clinical stabilization. The secondary endpoints included survival outcomes, adverse events, and the biologically effective dose (BED<sub>10</sub>). </p><p><b>Patients </b>Twenty-three patients with bleeding GC treated with pRT were analyzed. </p><p><b>Results </b>A hemostatic response was achieved in 17 (73.9%) patients. The pretreatment endoscopic and histopathological factors were not associated with the initial response. The median BED<sub>10</sub> was higher in responders than in non-responders (28.0 vs. 14.4 Gy), indicating a non-significant trend (Hodges–Lehmann median difference, 13.0 Gy; 95% bootstrap confidence interval, 0–24.6). Diabetes mellitus was more frequent in non-responders. Among the responders, a circumferential tumor extent of ≥1/2 of the lumen was significantly associated with earlier rebleeding (median rebleeding-free survival, 9.5 months; p=0.045). No adverse events of grade ≥3 occurred. </p><p><b>Conclusion </b>In this exploratory analysis, pRT achieved effective hemostasis in patients with bleeding GC. No pretreatment endoscopic or histological features were significantly associated with the initial hemostatic response. Extensive circumferential involvement identified responders at an increased risk of rebleeding, and a higher BED<sub>10</sub> showed a non-significant trend toward improved response without increased toxicity. </p>

    DOI PubMed CiNii Research

  • Regional Differences in Colonic Mucosal Temperature and Their Association with Gut Microbiota in Ulcerative Colitis

    Yosuke Shimodaira, Kenta Watanabe, Sho Fukuda, Tamotsu Matsuhashi, Katsunori Iijima.

    Tohoku J Exp Med ( 東北ジャーナル刊行会 )  advpub ( 0 )   2026.06  [Refereed]

    Research paper (journal)   Domestic Co-author

    DOI PubMed CiNii Research

  • A Step-Up Underwater Endoscopic Mucosal Resection Strategy with Rescue Underwater Injection Endoscopic Mucosal Resection for Non-Pedunculated Colorectal Lesions

    Akihiro Yoshida, Tsuyoshi Ono, Satoshi Ito, Kenta Watanabe, Toru Okuzono, Katsunori Iijima

    DEN Open ( Den Open )  7 ( 1 )   2026.05  [Refereed]

    Research paper (journal)   Domestic Co-author

    DOI

  • Five-Year Unified Risk Prediction Model for Gastric and Esophageal Cancer Based on Nationwide Health Check-Up Data in Japan: J-GESS Score

    Kenta Watanabe, et al.

    Journal of Gastroenterology and Hepatology ( Journal of Gastroenterology and Hepatology Australia )  41 ( 7 ) 2073 - 2081   2026.05  [Refereed]

    Research paper (journal)   Domestic Co-author

    DOI

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    ◆Other【 display / non-display 】

  • Risk of pneumonia associated with proton pump inhibitor use

    Watanabe K.

    Journal of Gastroenterology ( Journal of Gastroenterology )  58 ( 9 ) 945 - 946   2023

    Book review and document introduction, etc.  

    DOI

  • Response to Hassan et al. Regarding the J-GESS Score

    Kenta Watanabe, Katsunori Iijima.

    Journal of Gastroenterology and Hepatology ( Journal of Gastroenterology and Hepatology Australia )    2026.08

    Other article   Domestic Co-author

    DOI

  • Response to Malik et al. Regarding the J‐GESS Score

    Kenta Watanabe, Katsunori Iijima.

    Journal of Gastroenterology and Hepatology     2026.08

    Other article   Domestic Co-author

    DOI

  • Response to Un Nisa et al. Regarding the J-GESS Score

    Kenta Watanabe, Katsunori Iijima.

    Journal of Gastroenterology and Hepatology     2026.07

    Other article   Domestic Co-author

    DOI

  • Response to Dileep et al. Regarding the J-GESS Score

    Kenta Watanabe, Katsunori Iijima.

    Journal of Gastroenterology and Hepatology ( Journal of Gastroenterology and Hepatology Australia )    2026.07

    Other article   Domestic Co-author

    DOI

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Academic Awards Received 【 display / non-display 】

  • Japan Digestive Disease Week 2022

    2022.10.29   The Japanese Society of Gastroenterology  

  • Japan Digestive Disease Week 2022

    2022.10.29   The Japanese Society of Gastroenterology  

  • Japan Digestive Disease Week 2021

    2021.11.04   The Japanese Society of Gastroenterology  

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Grant-in-Aid for Scientific Research 【 display / non-display 】

  • Grant-in-Aid for Early-Career Scientists

    Project Year： 2026.04  -  2029.03 

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Joint Research activities 【 display / non-display 】

  • Milk Elimination Diet Therapy of Eosinophilic esophagitis in Japanese Adults (MET-J Study)

    Unselected  Collaboration in Japan  

    Project Year： 2025.03  -  2028.03 

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Presentations 【 display / non-display 】

  • Causal Association Between Extensive Gastric Atrophy and Esophageal Squamous Cell Carcinoma: Insights from a Nationwide Cohort in Japan

    Kenta Watanabe, et al.

    第79回 日本食道学会学術集会  (京都)  2025.06  -  2025.06 

  • H. pylori除菌後の見逃し胃癌の危険因子

    渡邊 健太, 他

    第109回　日本消化器内視鏡学会総会  2025.05  -  2025.05 

  • 炎症性腸疾患に合併する食道病変の検討

    倉光　泰良，下平　陽介，白山　洸大，猿田　陽平，児玉　崇，田近　宗彦，吉田　樹， 渡邊　健太，福田　翔，松橋　保，飯島　克則

    第172回 日本消化器内視鏡学会東北支部例会  (東京)  2024.07  -  2024.07 

  • Risk stratification of synchronous gastric cancers including alcohol-related genetic polymorphisms in patients with endoscopic submucosal dissection for early gastric cancers: a multicenter prospective cohort study

    Hatta W, Asonuma S, Koike T, Okata H, Uno K, Iwai W, Saito M, Yonechi M, Fukushi D, Kayaba D, Shinkai H, Kikuchi R, Kikuchi H, Ito H, Fushiya J, Shiroki T, Maejima R, Abe Y, Yagi M, Kawamura M, Yokosawa S, Honda J, Ohyauchi M, Kondo Y, Dairaku N, Toda S, Watanabe K, Takahashi K, Echigo H, Abe Y, Endo H, Okata T, Hoshi T, Fujiya T, Kayada K, Tanno N, Sato I, Ono Y, Abe H, Ogata Y, Saito M, Kanno T, Nakamura T, Nakaya N, Iijima K, Masamune A

    Digestive Disease Week 2024  2024.05  -  2024.05 

  • Low risk of esophageal adenocarcinoma among patients with ultrashort-segment Barrett’s esophagus in Japan

    Sho Fukuda, Kenta Watanabe, Tatsuki Yoshida

    第30回JDDW（第64回日本消化器病学会大会）  (福岡)  2022.10  -  2022.10 

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Academic Activity 【 display / non-display 】

  • 2025.04
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    Now

  • 2024.11
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    Now

  • 2025.01
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    Now

  • 2023.01
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    Now

  • 2021.07
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    Now

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