• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Studies on the clinical significance of vitamin B12 insufficiency

Research Project

Project/Area Number 16K00881
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Eating habits
Research InstitutionKobe Gakuin University (2018)
Kyoto Women's University (2016-2017)

Principal Investigator

Tanaka Kiyoshi  神戸学院大学, 栄養学部, 教授 (90227132)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
KeywordsビタミンB12 / ビタミン不足 / 貧血 / 胃切除 / ホモシステイン / 葉酸 / 骨粗鬆症 / 骨折 / 心血管疾患 / 日本人の食事摂取基準 / 動脈硬化
Outline of Final Research Achievements

We have undertaken these studies, since clinical studies on water-soluble vitamins have been limited. In the elderly, muscle strength was associated with hyperhomocysteinemia. In patients with Crohn's disease, serum vitamin B12 level was decreased despite intake higher than recommended daily allowance, suggesting impaired absorption. In patients scheduled for or after gastrectomy, serum vitamin B12 level was decreased, suggesting that vitamin B12 deficiency occurs much earlier than previously considered.

Academic Significance and Societal Importance of the Research Achievements

ビタミン欠乏より軽度の不足であっても、種々の疾患リスクが増加するが、水溶性ビタミンに関する臨床研究は、わが国においてきわめて乏しい。本研究において、ビタミンB12不足は高齢者の筋力低下と関連することを明らかにし、クローン病モデルにおいて、吸収障害がビタミンB12不足の重要な原因となることを示した。さらに胃切除患者において、従来考えられているより、はるかに早期から、ビタミンB12不足が起こることを明らかにした。すなわちビタミンB12不足は、慢性疾患のリスクと関係し、不足者の割合は高い。このようなビタミンB12不足の臨床的意義を明らかにすることは、高齢化社会において、大きな社会的意義を持ち得る。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (11 results)

All 2019 2018 2017 2016

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 5 results,  Acknowledgement Compliant: 2 results) Presentation (6 results) (of which Invited: 4 results)

  • [Journal Article] Relationship between Homocysteine, Folate, Vitamin B<sub>12</sub> and Physical Performance in the Institutionalized Elderly2019

    • Author(s)
      Ao M, Yamamoto K, Ohta J, Abe Y, Niki N, Inoue S, Tanaka S, Miyawaki T, Tanaka K.
    • Journal Title

      Journal of Nutritional Science and Vitaminology

      Volume: 65 Issue: 1 Pages: 1-7

    • DOI

      10.3177/jnsv.65.1

    • NAID

      130007604666

    • ISSN
      0301-4800, 1881-7742
    • Year and Date
      2019-02-28
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Possible involvement of thiamine insufficiency in heart failure in the institutionalized elderly2019

    • Author(s)
      Ao M, Inuiya N, Ohta J, Kurose S, Takaoka H, Abe Y, Niki N, Inoue S, Tanaka S, Miyawaki T, Tanaka K.
    • Journal Title

      Journal of Clinical Biochemistry and Nutrition

      Volume: 64 Issue: 3 Pages: 239-242

    • DOI

      10.3164/jcbn.18-85

    • NAID

      130007641421

    • ISSN
      0912-0009, 1880-5086
    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Associations between serum 25-hydroxyvitamin D3 level and skeletal muscle mass and lower limb muscle strength in Japanese middle-aged subjects.2017

    • Author(s)
      Kuwabara A, Tsugawa N, Kondo H, Ao M, Fujiwara H, Hosokawa N, Matsumoto S, Tanaka K, Nakano T.
    • Journal Title

      Osteoporosis and Sarcopenia

      Volume: 3 Issue: 1 Pages: 53-58

    • DOI

      10.1016/j.afos.2017.02.002

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Journal Article] Comparison of lower leg muscle strength and grip strength for diagnosing slower gait speed in the elderly2017

    • Author(s)
      Ohta J, Seki M, Ao M, Okajima R, Kuwabara A, Takaoka H, Aoyama K, Tanaka K
    • Journal Title

      Osteoporosis and Sacopenia

      Volume: 3 Issue: 3 Pages: 128-131

    • DOI

      10.1016/j.afos.2017.07.001

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] High prevalence of vitamin B12 insufficiency in patients with Crohn’s disease.2017

    • Author(s)
      Misora M, Tsuji H, Shide K. Kosaka, Y, Noda, A, Inagaki, N. Nakase, H, Tanaka K.
    • Journal Title

      Asia Pacific Journal of Clinical Nutrition

      Volume: 26

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] 高齢者の健康維持におけるビタミンの役割2018

    • Author(s)
      田中清
    • Organizer
      ビタミンB研究委員会平成29年度シンポジウム
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 健康障害回避に基づいたビタミンB12必要量決定の試み -ビタミンDからビタミンB12を考える-2017

    • Author(s)
      田中清
    • Organizer
      ビタミンB研究委員会 平成28年度シンポジウム
    • Place of Presentation
      大阪市
    • Year and Date
      2017-03-03
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 疾患とビタミン2017

    • Author(s)
      田中清
    • Organizer
      第20回日本病態栄養学会 教育講演
    • Place of Presentation
      京都市
    • Year and Date
      2017-01-14
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 健康寿命の延伸におけるビタミンの役割とその社会的意義2017

    • Author(s)
      田中清
    • Organizer
      第69回日本ビタミン学会総会(教育講演)
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] 新規血管障害のリスクを考慮した MTHFR 遺伝子多型別の血液中ビタミン B12 及びホモシステイン濃度の検討2016

    • Author(s)
      青未空、田中清、井上聡、浦野友彦、白木正孝
    • Organizer
      日本ビタミン学会第68回大会
    • Place of Presentation
      富山市
    • Year and Date
      2016-06-17
    • Related Report
      2016 Research-status Report
  • [Presentation] 椎体骨折のリスクを考慮したMTHFR遺伝子多型別の血液中ビタミンB12及びホモシステイン濃度の検討2016

    • Author(s)
      青未空、田中清、浦野友彦、井上聡、白木正孝
    • Organizer
      第70回日本栄養・食糧学会大会
    • Place of Presentation
      西宮市
    • Year and Date
      2016-05-14
    • Related Report
      2016 Research-status Report

URL: 

Published: 2016-04-21   Modified: 2020-03-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi