Evidence map›Paper›PMID 23623697›Full record

ArticleNeuron2013

A Gq-Ca2+ axis controls circuit-level encoding of circadian time in the suprachiasmatic nucleus.

Marco Brancaccio, Elizabeth S Maywood, Johanna E Chesham, Andrew S I Loudon, Michael H Hastings

Open access · hybridAbstract read
In one paragraph

Article in Neuron, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 131 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
131citing papers in PubMed, 1 pooled it
10.3field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

131 citing papers in PubMed, 1 synthesis or guideline pooled it, 195 citations in OpenAlex.

  1. Systematic review of drugs that modify the circadian system's phase-shifting responses to light exposure.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2022
    Pooled it
  2. Article
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  4. Overview of the DREADDs chemogenetics and the patent landscape of their actuators.Medicinal chemistry research : an international journal for rapid communications on design and mechanisms of action of biologically active agents · 2026
    Review
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  7. Integrating Astrocytes in the Sleep-Wake Cycle: The Time Is Now.BioEssays : news and reviews in molecular, cellular and developmental biology · 2025
    Review
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. On the origin and evolution of the dual oscillator model underlying the photoperiodic clockwork in the suprachiasmatic nucleus.Journal of comparative physiology. A, Neuroethology, sensory, neural, and behavioral physiology · 2024
    Review
  16. Article
  17. Article
  18. Bmal1 integrates circadian function and temperature sensing in the suprachiasmatic nucleus.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  19. Review
  20. Article

71 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 1 country.

Marco BrancaccioDivision of Neurobiology, Medical Research Council Laboratory of Molecular Biology, Cambridge CB2 0QH, UK.
Elizabeth S Maywood
Johanna E Chesham
Andrew S I Loudon
Michael H Hastings
MRC Laboratory of Molecular Biology · GBMedical Research Council · GBUniversity of Manchester · GB

Funding

Biotechnology and Biological Sciences Research Council BB/E022553/1Biotechnology and Biological Sciences Research Council BB/E023223/1Medical Research Council MC_U105170643
6 · The paper itself

Abstract

The role of intracellular transcriptional/post-translational feedback loops (TTFL) within the circadian pacemaker of the suprachiasmatic nucleus (SCN) is well established. In contrast, contributions from G-coupled pathways and cytosolic rhythms to the intercellular control of SCN pacemaking are poorly understood. We therefore combined viral transduction of SCN slices with fluorescence/bioluminescence imaging to visualize GCaMP3-reported circadian oscillations of intracellular calcium [Ca2+]i alongside activation of Ca2+ /cAMP-responsive elements. We phase-mapped them to the TTFL, in time and SCN space, and demonstrated their dependence upon G-coupled vasoactive intestinal peptide (VIP) signaling. Pharmacogenetic manipulation revealed the individual contributions of Gq, Gs, and Gi to cytosolic and TTFL circadian rhythms. Importantly, activation of Gq-dependent (but not Gs or Gi) pathways in a minority of neurons reprogrammed [Ca2+]i and TTFL rhythms across the entire SCN. This reprogramming was mediated by intrinsic VIPergic signaling, thus revealing a Gq/[Ca2+]i-VIP leitmotif and unanticipated plasticity within network encoding of SCN circadian time.

Indexed as

AnimalsCalcium SignalingCircadian ClocksCyclic AMP Response Element-Binding ProteinFeedback, PhysiologicalGTP-Binding Protein alpha SubunitsGTP-Binding Protein alpha Subunits, Gi-GoGTP-Binding Protein alpha Subunits, Gq-G11GTP-Binding Protein alpha Subunits, GsIn Vitro TechniquesMiceMice, Mutant StrainsMice, TransgenicSecond Messenger SystemsSignal TransductionSuprachiasmatic NucleusCyclic AMP Response Element-Binding ProteinGTP-Binding Protein alpha SubunitsGTP-Binding Protein alpha Subunits, Gi-GoGTP-Binding Protein alpha Subunits, Gq-G11GTP-Binding Protein alpha Subunits, GsVasoactive Intestinal Peptide

Identifiers

PMID23623697
PMCPMC3666084
OpenAlexW2164166968

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.