Evidence map›Paper›PMID 26763505›Full record

ArticleInternational journal of bipolar disorders2016

Circadian rhythmicity in emerging mood disorders: state or trait marker?

Ashlee B Grierson, Ian B Hickie, Sharon L Naismith, Daniel F Hermens, Elizabeth M Scott, Jan Scott

Open access · goldAbstract read
In one paragraph

Article in International journal of bipolar disorders, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
4.0field-weighted citation impact, top 6% 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

22 citing papers in PubMed, 2 syntheses or guidelines pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Review
  5. Article
  6. Article
  7. Diurnal variation of cardiac autonomic activity in adolescent non-suicidal self-injury.European archives of psychiatry and clinical neuroscience · 2024
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  8. Review
  9. Late and Instable Sleep Phasing is Associated With Irregular Eating Patterns in Eating Disorders.Annals of behavioral medicine : a publication of the Society of Behavioral Medicine · 2020
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Time of Day Differences in Neural Reward Functioning in Healthy Young Men.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
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  19. Review
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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

6 authors at 3 institutions in 2 countries.

Ashlee B GriersonBrain and Mind Centre, The University of Sydney, Sydney, Australia. ashlee.hannon@sydney.edu.au.
Ian B HickieBrain and Mind Centre, The University of Sydney, Sydney, Australia. ian.hickie@sydney.edu.au.
Sharon L NaismithCharles Perkins Centre, Brain and Mind Centre, The University of Sydney, Sydney, Australia. sharon.naismith@sydney.edu.au.
Daniel F HermensBrain and Mind Centre, The University of Sydney, Sydney, Australia. daniel.hermens@sydney.edu.au.
Elizabeth M ScottNotre Dame University, Sydney, Australia. e.scott@sydney.edu.au.
Jan ScottAcademic Psychiatry, Institute of Neuroscience, Newcastle University, Newcastle, UK. jan.scott@newcastle.ac.uk.
University of Sydney · AUNewcastle University · GBThe University of Notre Dame Australia · AU

Funding

Department of Health PB-PG-0609-16166
6 · The paper itself

Abstract

backgroundCircadian rhythm disturbances overlap with the symptoms of mood episodes and may trigger or prolong mood symptoms. There is limited research on the role of circadian disturbances in mood disorders in young people and/or first episode cases of unipolar and bipolar disorders.

methodsActigraphy was undertaken for about 14 days in 63 post-pubertal individuals aged 13-25 years with a recent onset of a mood disorder meeting recognised diagnostic criteria. We examined associations between three easily interpretable markers of circadian rhythm activity (amplitude, acrophase and rhythmicity index) and demography and clinical characteristics. Then, circadian markers were compared between diagnostic groups, controlling for potential confounders.

resultsLonger duration of illness was correlated with reduced circadian rhythmicity and lower levels of activity over 24 h. A delay in the timing of maximum activity was associated with the level of manic but not depressive symptoms. The circadian rhythmicity index differentiated unipolar from bipolar cases, and in bipolar but not unipolar disorder, the rhythmicity was less robust in those with more severe manic or depressive symptoms.

conclusionsLess robust circadian rhythmicity, especially associated with increasing symptom severity, may represent a more specific or a trait marker of young people with mood disorders who are at higher risk of a bipolar course of illness.

Indexed as

AdolescenceBipolarCircadian rhythmTraitUnipolarYoung adult

Identifiers

PMID26763505
PMCPMC4712181
OpenAlexW2239876720

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.