2019 Fiscal Year Final Research Report
Evaluation and elucidation of mechanism of action of the relieving effect of a metabolite of fish oil component on allergic symptoms
Project/Area Number |
17K07792
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Food science
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Research Institution | Ehime University |
Principal Investigator |
Nishi Kosuke 愛媛大学, 農学研究科, 准教授 (80578097)
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Project Period (FY) |
2017-04-01 – 2020-03-31
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Keywords | 魚油 / DHA / 代謝物 / モデルマウス / サイトカイン / 花粉症 / アレルギー / マスト細胞 |
Outline of Final Research Achievements |
Results of epidemiological studies and animal experiments suggest an anti-allergy effect of fish oil; however, its underlying mechanism still remains unclear. To elucidate the mechanism of action of the anti-allergy effect of fish oil, this study was conducted based on docosahexaenoic acid (DHA), an ingredient of fish oil. The result revealed that docosahexaenoyl ethanolamide (DHEA), a metabolite of DHA produced in our body, suppresses antigen-induced mast cell activation. In addition, oral administration of DHEA mitigated an allergic symptom of pollinosis model mice.
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Free Research Field |
食品機能学
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Academic Significance and Societal Importance of the Research Achievements |
本研究の実施により、魚油のアレルギー症状緩和効果は、主成分の一つであるDHAのはたらきだけでなく、それが私たちの体内で変換されて生じる代謝物の一つであるDHEAのはたらきも重要である可能性が示唆された。また、DHEAの経口投与によって、花粉症モデルマウスのアレルギー症状が緩和されたことから、DHEAを活用した医薬品や保健機能食品の開発などの応用展開の可能性が考えられる。
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