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WillDynamics of REM sleep and appetite

Publicly Offered Research

Project AreaCreation and Promotion of the Will-Dynamics
Project/Area Number 19H05004
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Complex systems
Research InstitutionUniversity of Tsukuba

Principal Investigator

ラザルス ミハエル  筑波大学, 国際統合睡眠医科学研究機構, 准教授 (80469650)

Project Period (FY) 2019-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Fiscal Year 2020: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2019: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
KeywordsREM sleep / レム睡眠 / 食欲 / 意志動力学
Outline of Research at the Start

It is known that sleep disruption affects metabolism and energy balance, but the brain mechanism linking sleep disruption and obesity are poorly defined. Recent work from the WPI-IIIS Lazarus lab suggests a role of neurons in the medial prefrontal cortex (mPFC) in linking REM sleep to appetite for highly palatable food (McEown K, et al. eLife 2016). Moreover, the lab discovered that REM sleep is suppressed by activation of REM-active dopaminergic or GABA mesopontine neurons (Takata Y, et al., J Neurosci 2018). Thus, a mesopontine-mPFC circuit may control metabolic effects of REM sleep.

Outline of Annual Research Achievements

Our lab recently revealed the crucial importance of the medial prefrontal cortex (mPFC) in linking sleep quality with food preference and energy consumption (McEown et al., Elife, 2016, pii:e20269). Given that midbrain dopamine (DA) neurons have dense projections to the mPFC, we aimed in this project to elucidate the precise role of DA neurotransmission in mediating food preference based on their nutritional and metabolic impact. To interfere with DA neurotransmission, we employed chemogenetics to selectively inhibit DA neurons in the ventral tegmental area (VTA).
After habituation into our behavioral settings, animals were given free access to highly palatable food (Chocolate and cheese) and standard laboratory chow. Food preference and intake was monitored daily under both baseline 12h/12h light/dark (LD) cycle and following 6h sleep deprivation. Under LD conditions, control animals showed high preference for palatable fatty items (cheese) over carbohydrate-rich food (chocolate and standard chow). After inhibition of DA neurons, animals still show a preference for fatty food over sweet food.
Following sleep deprivation (SD), control animals dramatically shifted their preference to sweet food items over fatty-food and standard chow. Inhibition of midbrain VTA DA neurons abolished this response, leading to similar food consumption pattern after SD compared to LD baseline conditions.

Research Progress Status

令和2年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和2年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (4 results)

All 2020 2019

All Journal Article (4 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 4 results,  Open Access: 4 results)

  • [Journal Article] Ventral pallidal GABAergic neurons control wakefulness associated with motivation through the ventral tegmental pathway2020

    • Author(s)
      Ya-Dong Li, Yan-Jia Luo, Wei Xu, Jing Ge, Yoan Cherasse, Yi-Qun Wang, Michael Lazarus, Wei-Min Qu & Zhi-Li Huang
    • Journal Title

      Molecular Psychiatry

      Volume: - Issue: 7 Pages: 2912-2928

    • DOI

      10.1038/s41380-020-00906-0

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Ablation of Ventral Midbrain/Pons GABA Neurons Induces Mania-like Behaviors with Altered Sleep Homeostasis and Dopamine D2R-mediated Sleep Reduction2020

    • Author(s)
      Honda Takato, Takata Yohko, Cherasse Yoan, Mizuno Seiya, Sugiyama Fumihiro, Takahashi Satoru, Funato Hiromasa, Yanagisawa Masashi, Lazarus Michael, Oishi Yo
    • Journal Title

      iScience

      Volume: 23 Issue: 6 Pages: 101240-101240

    • DOI

      10.1016/j.isci.2020.101240

    • NAID

      120007163338

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Acute Social Defeat Stress Increases Sleep in Mice2019

    • Author(s)
      Fujii Shinya、Kaushik Mahesh K.、Zhou Xuzhao、Korkutata Mustafa、Lazarus Michael
    • Journal Title

      Frontiers in Neuroscience

      Volume: 13 Pages: 322-322

    • DOI

      10.3389/fnins.2019.00322

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Gating and the Need for Sleep: Dissociable Effects of Adenosine A1 and A2A Receptors2019

    • Author(s)
      Lazarus Michael、Oishi Yo、Bjorness Theresa E.、Greene Robert W.
    • Journal Title

      Frontiers in Neuroscience

      Volume: 13 Pages: 740-740

    • DOI

      10.3389/fnins.2019.00740

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research

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Published: 2019-04-18   Modified: 2021-12-27  

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