Cited by 48Neuroscience and Neuropharmacology ResearchCircadian rhythm and melatoninBipolar Disorder and Treatment

Altered GluA1 (Gria1) Function and Accumbal Synaptic Plasticity in the ClockΔ19 Model of Bipolar Mania

Open access
Parekh, Puja K., Becker-Krail, Darius, Sundaravelu, Poornima, Ishigaki, Shinsuke, Okado, Haruo, Sobue, Gen, Huang, Yanhua, McClung, Colleen A.·2018·Biological Psychiatry

Abstract

Background Disruptions in circadian rhythms are associated with an increased risk for bipolar disorder. Moreover, studies show that the circadian protein CLOCK (circadian locomotor output cycles kaput) is involved in regulating monoaminergic systems and mood-related behavior. However, the molecular and synaptic mechanisms underlying this relationship remain poorly understood.Methods Using ex vivo whole-cell patch-clamp electrophysiology in ClockΔ19 mutant and wild-type mice we characterized alterations in excitatory synaptic transmission, strength, and intrinsic excitability of nucleus accumbens (NAc) neurons. We performed protein crosslinking and Western blot analysis to examine surface and intracellular levels and rhythm of the glutamate receptor subunit, GluA1, in the NAc. Viral-mediated overexpression of Gria1 in the NAc and behavioral assays were also used.Results Compared with wild-type mice, ClockΔ19 mice display reduced alpha-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptor-mediated excitatory synaptic responses at NAc medium spiny neurons. These alterations are likely postsynaptic, as presynaptic release of glutamate onto medium spiny neurons is unaltered in mutant mice. Additionally, NAc surface protein levels and the rhythm of GRIA1 are decreased in ClockΔ19 mice diurnally, consistent with reduced functional synaptic response. Furthermore, we observed a significantly hyperpolarized resting membrane potential of ClockΔ19 medium spiny neurons, suggesting lowered intrinsic excitability. Last, overexpression of functional Gria1 in the NAc of mutant mice was able to normalize increased exploratory drive and reward sensitivity behavior when mice are in a manic-like state.Conclusions Together, our findings demonstrate that NAc excitatory signaling via Gria1 expression is integral to the effects of Clock gene disruption on manic-like behaviors.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.biopsych.2017.06.022

Cites

53 of 53 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Circadian genes in brain regions outside the SCN contribute locally to the control of neuronal metabolism, neurotransmitter synthesis and activity, and disruption of these functions might contribute to brain disorders.

    “circadian genes in other brain regions outside of this central pace-maker also contribute locally to the control of neuronal metabolism, neurotransmitter synthesis and activity, and the disruption of these functions might contribute to brain disorders264,304–315”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Parekh, P. K., Becker-Krail, D., Sundaravelu, P., Ishigaki, S., Okado, H., Sobue, G., Huang, Y., & McClung, C. A.
Affiliations
  • University of Pittsburgh Medical Center (US)
  • Nagoya University (JP)
  • Tokyo Metropolitan Institute of Medical Science (JP)
Corresponding author
McClung, Colleen A.
Venue
Biological Psychiatry
Publisher
Elsevier BV
Published
2018-12
Volume
84
Issue
11
Pages
817-826
ISSN
0006-3223 (ISSN-L)
OpenAlex
W2727422731
Cited by
48
References
53
Citations by year
2026: 8 · 2025: 1 · 2024: 3 · 2023: 6 · 2022: 10 · 2021: 1 · 2020: 7 · 2019: 5 · 2018: 6 · 2017: 1
FWCI
2.54
Type
journal article
Language
en
Open access
Locations
  • Biological Psychiatry (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Japan Society for the Promotion of Science (15K09310, 26117001, 26117004)
  • National Institute of Mental Health (R01MH082876, R01MH101147)
  • National Institute on Drug Abuse (R01DA023988, R01DA035805, R01DA039865)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Health Sciences › Medicine › Psychiatry and Mental health › Bipolar Disorder and Treatment
Keywords
clock genes, bipolar mania, GluR1, nucleus accumbens, synaptic plasticity, AMPA receptors, excitatory synaptic transmission, medium spiny neurons, intrinsic excitability, circadian rhythm, circadian rhythm disruption, reward sensitivity, manic-like behavior
MeSH terms
Animals, Bipolar Disorder, Circadian Rhythm, Female, Male, Mice, Inbred BALB C, Mice, Inbred C57BL, Synaptic Transmission, Neuronal Plasticity, Neurons, Nucleus Accumbens, Receptors, AMPA, Mice, Knockout, Patch-Clamp Techniques, Excitatory Postsynaptic Potentials, Mice, CLOCK Proteins

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review