Cited by 36Circadian rhythm and melatoninSleep and Work-Related FatigueSleep and Wakefulness Research

Dual regulation of clock gene Per2 expression in discrete brain areas by the circadian pacemaker and methamphetamine‐induced oscillator in rats

Natsubori, Akiyo, Honma, Ken‐ichi, Honma, Sato·2014·European Journal of Neuroscience

Abstract

Behavioral rhythms induced by methamphetamine (MAP) treatment in rats are independent of the circadian pacemaker in the suprachiasmatic nucleus (SCN). To know the site and mechanism of an underlying oscillation (MAP-induced oscillator; MAO), extra-SCN circadian rhythms in the discrete brain areas were examined in rats with and without the SCN. To fix the phase of MAO, MAP was supplied in drinking water at a restricted time of day for 14 days (R-MAP) and subsequently given ad libitum (ad-MAP). Plain water was given to the controls at the same restricted time (R-Water). Clock gene Per2 expression was measured by a bioluminescence reporter in cultured brain tissues. In SCN-intact rats, MAO was induced by R-MAP and behavioral rhythms were phase-delayed from the restricted time under ad-MAP with relative coordination. Circadian Per2 rhythms in R-MAP rats were not affected in the SCN but were slightly phase-advanced in the olfactory bulb (OB), caudate-putamen (CPU) and substantia nigra (SN) as compared with R-Water rats. Following SCN lesion, R-MAP-induced MAO phase-shifted more slowly and did not show a sign of relative coordination. In these rats, circadian Per2 rhythms were significantly phase-shifted in the OB and SN as compared with SCN-intact rats. These findings indicate that MAO was induced by MAP given at a restricted time of day in association with phase-shifts of the extra-SCN circadian oscillators in the brain dopaminergic areas. The findings also suggest that these extra-SCN oscillators are the components of MAO and receive dual regulation by MAO and the SCN circadian pacemaker.

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Crossref · 10.1111/ejn.12400

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  • Clock genes exhibit periodic variations in striatal structures and could be related to rhythms in the expression of dopamine-related genes.

    “Clock genes also exhibit periodic variations in striatal structures (Bussi et al., 2014, Li et al., 2009, Natsubori et al., 2014), and could be related to rhythms in the expression of dopamine-related genes (Shumay et al., 2012).”

    From Circadian dysregulation in Parkinson's disease (2017) · cites this paper as Natsubori et al., 2014

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Authors
Natsubori, A., Honma, K., & Honma, S.
Affiliations
Hokkaido University (JP)
Corresponding author
Honma, Ken‐ichi
Venue
European Journal of Neuroscience
Publisher
Wiley
Published
2013-10-25
Volume
39
Issue
2
Pages
229-240
ISSN
  • 0953-816X (ISSN-L)
  • 1460-9568
OpenAlex
W2077280656
Cited by
36
References
20
Citations by year
2026: 1 · 2025: 1 · 2024: 4 · 2023: 4 · 2022: 5 · 2021: 4 · 2020: 5 · 2019: 1 · 2018: 3 · 2016: 3 · 2015: 2 · 2014: 3
FWCI
1.44
Type
journal article
Language
en
Open access
closed
Locations
  • European Journal of Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
Keywords
methamphetamine, circadian pacemaker, suprachiasmatic nucleus, clock genes, olfactory bulb, substantia nigra, caudate-putamen, phase shift, feed restriction, behavioral rhythms, dual regulation
MeSH terms
Animals, Brain, Circadian Rhythm, Drinking, Eating, Gene Expression Regulation, Locomotion, Methamphetamine, Suprachiasmatic Nucleus, Time Factors, Wakefulness, Dopamine Agents, Rats, Wistar, Rats, Period Circadian Proteins, Circadian Clocks, In Vitro Techniques

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