Cited by 57Circadian rhythm and melatoninSleep and Wakefulness ResearchPeroxisome Proliferator-Activated Receptors

Bezafibrate, a Peroxisome Proliferator-Activated Receptors Agonist, Decreases Body Temperature and Enhances Electroencephalogram Delta-Oscillation during Sleep in Mice

Chikahisa, Sachiko, Tominaga, Kumiko, Kawai, Tomoko, Kitaoka, Kazuyoshi, Oishi, Katsutaka, Ishida, Norio, Rokutan, Kazuhito, Séi, Hiroyoshi·2008·Endocrinology

Abstract

Peroxisome proliferator-activated receptors (PPARs) are ligand-activated transcription factors belonging to the nuclear receptor family. PPARs play a critical role in lipid and glucose metabolism. We examined whether chronic treatment with bezafibrate, a PPAR agonist, would alter sleep and body temperature (BT). Mice fed with a control diet were monitored for BT, electroencephalogram (EEG), and electromyogram for 48 h under light-dark conditions. After obtaining the baseline recording, the mice were provided with bezafibrate-supplemented food for 2 wk, after which the same recordings were performed. Two-week feeding of bezafibrate decreased BT, especially during the latter half of the dark period. BT rhythm and sleep/wake rhythm were phase advanced about 2–3 h by bezafibrate treatment. Bezafibrate treatment also increased the EEG delta-power in nonrapid eye movement sleep compared with the control diet attenuating its daily amplitude. Furthermore, bezafibrate-treated mice showed no rebound of EEG delta-power in nonrapid eye movement sleep after 6 h sleep deprivation, whereas values in control mice largely increased relative to baseline. DNA microarray, and real-time RT-PCR analysis showed that bezafibrate treatment increased levels of Neuropeptide Y mRNA in the hypothalamus at both Zeitgeber time (ZT) 10 and ZT22, and decreased proopiomelanocortin-α mRNA in the hypothalamus at ZT10. These findings demonstrate that PPARs participate in the control of both BT and sleep regulation, which accompanied changes in gene expression in the hypothalamus. Activation of PPARs may enhance deep sleep and improve resistance to sleep loss.

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Crossref · 10.1210/en.2008-0285

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  • In a mouse model, bezafibrate, a PPAR-α agonist, affects baseline sleep and recovery sleep after sleep restriction.

    “Bezafibrate, an antihyperlipidemic PPAR-α agonist, has been shown in a mouse model to affect both BL sleep, with increased EEG δ-power, and recovery sleep following sleep restriction, with a reduced rebound in EEG δ-power (49).”

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Authors
Chikahisa, S., Tominaga, K., Kawai, T., Kitaoka, K., Oishi, K., Ishida, N., Rokutan, K., & Séi, H.
Affiliations
  • Tokushima University (JP)
  • National Institute of Advanced Industrial Science and Technology (JP)
  • University of Tsukuba (JP)
  • Departments of Integrative Physiology (S.C., H.S.), Institute of Health Biosciences, The University of Tokushima Graduate School, Tokushima 770-8503, Japan
Venue
Endocrinology
Published
2008-09-11
Volume
149
Issue
10
Pages
5262-5271
ISSN
  • 0013-7227 (ISSN-L)
  • 1945-7170
OpenAlex
W2091371379
Cited by
57
References
42
Citations by year
2026: 1 · 2023: 3 · 2022: 4 · 2021: 5 · 2020: 2 · 2019: 3 · 2018: 3 · 2017: 1 · 2016: 3 · 2015: 6 · 2014: 3 · 2013: 6 · 2012: 2
FWCI
2.23
Type
journal article
Language
en
Open access
closed
Locations
  • Endocrinology (publishedVersion)
  • PubMed (publishedVersion)
Funders
University of Tokushima
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Peroxisome Proliferator-Activated Receptors
Keywords
bezafibrate, peroxisome proliferator-activated receptors, body temperature, sleep regulation, EEG delta power, NREM sleep, sleep deprivation, hypothalamus, neuropeptide Y, circadian rhythm, phase advance, PPAR agonists
MeSH terms
Animals, Hypolipidemic Agents, Bezafibrate, Body Temperature, Body Temperature Regulation, Delta Rhythm, Hypothalamus, Injections, Intraventricular, Male, Mice, Inbred ICR, Neuropeptide Y, Pro-Opiomelanocortin, Sleep Stages, Wakefulness, Gene Expression, Reverse Transcriptase Polymerase Chain Reaction, Oligonucleotide Array Sequence Analysis, Peroxisome Proliferator-Activated Receptors, Mice

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