Cited by 140Circadian rhythm and melatoninNeurotransmitter Receptor Influence on BehaviorSleep and Wakefulness Research

Direct Midbrain Dopamine Input to the Suprachiasmatic Nucleus Accelerates Circadian Entrainment

Open access
Grippo, Ryan M., Purohit, Aarti M., Zhang, Qi, Zweifel, Larry S., Güler, Ali D.·2017·Current Biology

Abstract

Dopamine (DA) neurotransmission controls behaviors important for survival, including voluntary movement, reward processing, and detection of salient events, such as food or mate availability. Dopaminergic tone also influences circadian physiology and behavior. Although the evolutionary significance of this input is appreciated, its precise neurophysiological architecture remains unknown. Here, we identify a novel, direct connection between the DA neurons of the ventral tegmental area (VTA) and the suprachiasmatic nucleus (SCN). We demonstrate that D1 dopamine receptor (Drd1) signaling within the SCN is necessary for properly timed resynchronization of activity rhythms to phase-shifted light:dark cycles and that elevation of DA tone through selective activation of VTA DA neurons accelerates photoentrainment. Our findings demonstrate a previously unappreciated role for direct DA input to the master circadian clock and highlight the importance of an evolutionarily significant relationship between the circadian system and the neuromodulatory circuits that govern motivational 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.cub.2017.06.084

Cites

60 of 60 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?

  • SCN neuronal firing is reduced in these mice from young adulthood and progressively worsens with age, suggesting a weakened circadian pacemaker and a potential loss of dopaminergic modulation of circadian rhythms.

    “SCN neuronal firing is also reduced in these mice from young adulthood and progressively worsens with age, suggesting a weakened circadian pacemaker276 and a potential loss of dopaminergic modulation of circadian rhythms via midbrain, striatal and SCN circuits277,278.”
  • Re-entrainment of the SCN to phase shifts in the light-dark schedule is facilitated by dopaminergic projections from the ventral tegmental area to the SCN and is dependent on dopamine 1 receptor-expressing neurons in the SCN.

    “This study shows re-entrainment of the SCN to phase shifts in the light–dark schedule is facilitated by dopaminergic projections from the ventral tegmental area to the SCN and is dependent on dopamine 1 receptor-expressing neurons in the SCN.”

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
Grippo, R. M., Purohit, A. M., Zhang, Q., Zweifel, L. S., & Güler, A. D.
Affiliations
  • University of Virginia (US)
  • University of Washington (US)
Corresponding author
Güler, Ali D.
Venue
Current Biology
Publisher
Elsevier BV
Published
2017-08
Volume
27
Issue
16
Pages
2465-2475.e3
ISSN
0960-9822 (ISSN-L)
OpenAlex
W2743429878
Cited by
140
References
60
Citations by year
2026: 10 · 2025: 19 · 2024: 15 · 2023: 23 · 2022: 17 · 2021: 13 · 2020: 11 · 2019: 14 · 2018: 15 · 2017: 2
FWCI
7.05
Type
journal article
Language
en
Open access
Locations
  • Current Biology (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • NIH National Institute of Mental Health (NIMH) (R01MH104450)
  • NIH National Institute of General Medicinal Sciences (NIGMS) (R01GM11937)
  • University of Virginia
Topics
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
Keywords
dopamine, suprachiasmatic nucleus, ventral tegmental area, circadian entrainment, light entrainment, dopamine D1 receptor, circadian clock, phase shifting, light-dark cycle, neuromodulation, circadian rhythm
MeSH terms
Animals, Dopamine, Male, Mesencephalon, Mice, Inbred C57BL, Suprachiasmatic Nucleus, Ventral Tegmental Area, Mice, Circadian Clocks, Dopaminergic Neurons

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