Cited by 594Circadian rhythm and melatoninNeuroscience and Neuropharmacology ResearchNeurotransmitter Receptor Influence on Behavior

The clock gene Per2 influences the glutamatergic system and modulates alcohol consumption

Spanagel, Rainer, Pendyala, Gurudutt, Abarca, Carolina, Zghoul, Tarek, Sanchis-Segura, Carles, Magnone, Maria Chiara, Lascorz, Jesús, Depner, Martin +7 more·2005·Nature Medicine

Abstract

Period (Per) genes are involved in regulation of the circadian clock and are thought to modulate several brain functions. We demonstrate that Per2(Brdm1) mutant mice, which have a deletion in the PAS domain of the Per2 protein, show alterations in the glutamatergic system. Lowered expression of the glutamate transporter Eaat1 is observed in these animals, leading to reduced uptake of glutamate by astrocytes. As a consequence, glutamate levels increase in the extracellular space of Per2(Brdm1) mutant mouse brains. This is accompanied by increased alcohol intake in these animals. In humans, variations of the PER2 gene are associated with regulation of alcohol consumption. Acamprosate, a drug used to prevent craving and relapse in alcoholic patients is thought to act by dampening a hyper-glutamatergic state. This drug reduced augmented glutamate levels and normalized increased alcohol consumption in Per2(Brdm1) mutant mice. Collectively, these data establish glutamate as a link between dysfunction of the circadian clock gene Per2 and enhanced alcohol intake.

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Crossref · 10.1038/nm1163

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  • A Per2 polymorphism was associated with more alcohol use in patients with AUDs.

    “A Per2 polymorphism was associated with more alcohol use in patients with AUDs (Spanagel et al., 2005)”

    From Sleep and circadian contributions to adolescent alcohol use disorder (2015) · cites this paper as Spanagel et al., 2005

  • Circadian gene mutants often demonstrate altered reward behavior, such as increased preference for alcohol or hypersensitization to cocaine.

    “Furthermore, circadian gene mutants often demonstrate altered reward behavior, such as increased preference for alcohol or hypersensitization to cocaine (McClung et al., 2005; Spanagel et al., 2005).”

    From Sleep and circadian contributions to adolescent alcohol use disorder (2015) · cites this paper as Spanagel et al., 2005

  • Additional studies have found associations between members of the molecular clock and other psychiatric disorders such as schizophrenia and alcoholism.

    “additional studies have found associations between members of the molecular clock and other psychiatric disorders such as schizophrenia and alcoholism”

    From Circadian genes, rhythms and the biology of mood disorders (2007) · cites this paper as Spanagel et al., 2005

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Authors
Spanagel, R., Pendyala, G., Abarca, C., Zghoul, T., Sanchis-Segura, C., Magnone, M. C., Lascorz, J., Depner, M., Holzberg, D., Soyka, M., Schreiber, S., Matsuda, F., Lathrop, M., Schumann, G., & Albrecht, U.
Affiliations
  • Central Institute of Mental Health (DE)
  • University of Fribourg (CH)
  • Vrije Universiteit Brussel (BE)
  • Max Planck Society (DE)
  • Ludwig-Maximilians-Universität München (DE)
  • Christian-Albrechts-Universität zu Kiel (DE)
Corresponding author
  • Spanagel, Rainer
  • Albrecht, Urs
Venue
Nature Medicine
Published
2004-12-19
Volume
11
Issue
1
Pages
35-42
ISSN
  • 1078-8956 (ISSN-L)
  • 1546-170X
OpenAlex
W2140395780
Cited by
594
References
50
Citations by year
2026: 10 · 2025: 13 · 2024: 12 · 2023: 15 · 2022: 21 · 2021: 32 · 2020: 33 · 2019: 16 · 2018: 34 · 2017: 22 · 2016: 19 · 2015: 30 · 2014: 32 · 2013: 37 · 2012: 29
FWCI
9.96
Type
journal article
Language
en
Update notices
erratum (2005-02-01)
Open access
closed
Locations
  • Nature Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • reroDoc Digital Library (submittedVersion)
  • Research Portal (King's College London) (submittedVersion)
  • VUBIR (Vrije Universiteit Brussel) (submittedVersion)
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
Keywords
Per2, clock genes, glutamatergic system, alcohol consumption, astrocytes, extracellular glutamate, acamprosate, alcohol craving
MeSH terms
Acamprosate, Alcohol Deterrents, Alcohol Drinking, Alcoholism, Animals, Biological Clocks, Cocaine, Humans, Nuclear Proteins, Taurine, Time Factors, Transcription Factors, Glutamic Acid, Cell Cycle Proteins, Cocaine-Related Disorders, Amino Acid Transport System X-AG, Mice, Period Circadian Proteins

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