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2022 Fiscal Year Final Research Report

Elucidation of the effects of mildly magnesium-deficient diet on bone metabolism and its mechanism

Research Project

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Project/Area Number 20K02360
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 08030:Family and consumer sciences, and culture and living-related
Research InstitutionThe University of Tokyo

Principal Investigator

ISHIJIMA Tomoko  東京大学, 大学院農学生命科学研究科(農学部), 特任助教 (80568270)

Project Period (FY) 2020-04-01 – 2023-03-31
Keywordsマグネシウム欠乏食 / 骨代謝 / 骨代謝マーカー / 骨密度 / 網羅的遺伝子発現解析 / 大腿骨 / ラット
Outline of Final Research Achievements

I tried to comprehensively understand the effects of mild Mg-deficient diets reflecting the current insufficient Mg intake state of Japanese, on bone metabolism and their mechanisms by biochemical, physical and comprehensive gene expression analyses. These results of analyses suggested that different effects on bone metabolism among the three groups (rats fed the 0.04%, 0.02% and 0.01% Mg-deficient diets). I also obtained new findings that even in mild Mg deficiency, the effect on bone metabolism was caused.

Free Research Field

栄養生化学

Academic Significance and Societal Importance of the Research Achievements

先行研究においては、重度Mg欠乏食投与による骨脆弱化が報告されているが、本研究のように現在の日本人のMg摂取不足状態を反映するような軽度Mg欠乏食投与状況下においても骨代謝への影響は引き起こされるという新たな知見を得ることができた。軽度のMg摂取不足でも骨代謝への影響は引き起こされることから、適正量のMg摂取を継続することで骨脆弱化を予防し、骨の健康を維持することでQOLの向上に貢献できると考える。

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Published: 2024-01-30  

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