Evidence map›Paper›PMID 17969870›Full record

ReviewDialogues in clinical neuroscience2007

The role of circadian clock genes in mental disorders.

Elaine Waddington Lamont, Daniel Legault-Coutu, Nicolas Cermakian, Diane B Boivin

Abstract readReview
In one paragraph

Review in Dialogues in clinical neuroscience, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 101 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
101citing papers in PubMed, 3 pooled it
4.5field-weighted citation impact, top 4% 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

101 citing papers in PubMed, 3 syntheses or guidelines pooled it, 173 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
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  4. Trial
  5. Review
  6. Article
  7. Article
  8. Article
  9. Napping during major depressive episodes identifies a distinct hypersomnolence phenotype.Sleep advances : a journal of the Sleep Research Society · 2026
    Article
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  11. Period3 modulates the NADJournal of advanced research · 2025
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  16. Review
  17. Nonlinear Association Between Weekday Sleep Duration and COPD Risk: Evidence From NHANES 2017-2023.International journal of chronic obstructive pulmonary disease · 2025
    Article
  18. Review
  19. Article
  20. Article

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

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors at 1 institution in 1 country.

Elaine Waddington LamontCentre for Study and Treatment of Circadian Rhythms, Douglas Mental Health University Institute, Montreal, QC, Canada.
Daniel Legault-Coutu
Nicolas Cermakian
Diane B Boivin
Douglas Mental Health University Institute · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The study of molecular clock mechanisms in psychiatric disorders is gaining significant interest due to data suggesting that a misalignment between the endogenous circadian system and the sleep-wake cycle might contribute to the clinical status of patients suffering from a variety of psychiatric disorders. Sleep disturbances in major depressive disorder (MDD) are characterized by increased sleep latency, poorer sleep efficiency reduced latency to the first rapid eye movement (REM) sleep episode, and early-morning awakening, but there is little data to indicate a role of circadian clock genes in MDD. There is also relatively little information regarding the role of clock genes in anxiety. In contrast, a significant amount of evidence gathered in bipolar disorder (BPD) patients suggests a circadian rhythm disorder, namely an advanced circadian rhythm and state-dependent alterations of REM sleep latency. Most research on the role of clock genes in BPD has focused on polymorphisms of CLOCK, but the lithium target GSK3 may also play a significant role. A circadian phase shift is also theorized to contribute to the pathophysiology of winter seasonal affective disorder (SAD). Certain allelic combinations of NPAS2, PER3, and BMAL1 appear to contribute to the risk of SAD. In chronic schizophrenia, disturbances of sleep including insomnia and reduced sleep efficiency have been observed. Genetic studies have found associations with CLOCK, PER1, PER3, and TIMELESS. Sleep and circadian changes associated with dementia due to Alzheimer's disease suggest a functional change in the circadian master clock, which is supported by postmortem studies of clock gene expression in the brain.

Indexed as

Circadian RhythmCLOCK ProteinsHumansMental DisordersModels, BiologicalTrans-ActivatorsCLOCK protein, humanCLOCK ProteinsTrans-Activators

Identifiers

PMID17969870
PMCPMC3202489
OpenAlexW1493568492

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.