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2022 Fiscal Year Final Research Report

Investigating the molecular mechanism behind the improvement of glucose and lipid metabolism through time-restricted feeding

Research Project

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Project/Area Number 21K16350
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 54040:Metabolism and endocrinology-related
Research InstitutionTokyo Medical and Dental University

Principal Investigator

Tsujimoto Kazutaka  東京医科歯科大学, 医学部附属病院, 助教 (20801525)

Project Period (FY) 2021-04-01 – 2023-03-31
Keywordsエネルギー代謝 / 時間栄養学 / エピジェネティクス
Outline of Final Research Achievements

It has been revealed that SIRT1 in adipocytes contributes to the improvement of thermogenic function in brown adipose tissue through time-restricted feeding. Furthermore, it is suggested that SIRT1 may contribute to the induction of lipid metabolism turnover and enhanced mitochondrial function induced by time-restricted feeding. The mechanism involves the activation of the salvage pathway of nicotinamide adenine dinucleotide (NAD) through time-restricted feeding, leading to an increase in the amplitude of clock gene expression mediated by SIRT1.

Free Research Field

内分泌代謝学

Academic Significance and Societal Importance of the Research Achievements

褐色脂肪組織におけるSIRT1が、摂食時間制限による熱産生機能向上を誘導することを明らかにし、エネルギー摂取量に依存しない肥満改善の新たなメカニズムを見出した。さらに摂食時間制限によって脂肪細胞のSIRT1が誘導される機構や時計遺伝子との関連を明らかにした。
本研究成果は摂食時間制限が肥満や糖脂質代謝をどのように改善しているのかその分子学的理解に貢献するだけでなく、時間栄養学を活用した生活習慣病に対する新たな治療戦略の基盤となることが期待される。

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Published: 2024-01-30  

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