Evidence map›Paper›PMID 25338089›Full record

ArticlePloS one2014

Stress-induced changes in the expression of the clock protein PERIOD1 in the rat limbic forebrain and hypothalamus: role of stress type, time of day, and predictability.

Sherin Al-Safadi, Aya Al-Safadi, Marie Branchaud, Spencer Rutherford, Arun Dayanandan, Barry Robinson, Shimon Amir

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

17 citing papers in PubMed, 30 citations in OpenAlex.

  1. Oxalic acid and diacylglycerol 36:3 are cross-species markers of sleep debt.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Trial
  2. Article
  3. Review
  4. Article
  5. Review
  6. Article
  7. Frontiers in behavioral neuroscience · 2021
    Article
  8. Mood-related central and peripheral clocks.The European journal of neuroscience · 2020
    Review
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Altered Expression Pattern of Clock Genes in a Rat Model of Depression.The international journal of neuropsychopharmacology · 2016
    Article
  15. Review
  16. Review
  17. Article
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

7 authors at 1 institution in 1 country.

Sherin Al-SafadiDepartment of Biology, Concordia University, Montréal, Quebéc, Canada; Department of Psychology, Center for Studies in Behavioral Neurobiology, Concordia University, Montréal, Quebéc, Canada.
Aya Al-SafadiDepartment of Psychology, Center for Studies in Behavioral Neurobiology, Concordia University, Montréal, Quebéc, Canada.
Marie BranchaudDepartment of Psychology, Center for Studies in Behavioral Neurobiology, Concordia University, Montréal, Quebéc, Canada.
Spencer RutherfordDepartment of Psychology, Center for Studies in Behavioral Neurobiology, Concordia University, Montréal, Quebéc, Canada.
Arun DayanandanDepartment of Biology, Concordia University, Montréal, Quebéc, Canada; Department of Psychology, Center for Studies in Behavioral Neurobiology, Concordia University, Montréal, Quebéc, Canada.
Barry RobinsonDepartment of Psychology, Center for Studies in Behavioral Neurobiology, Concordia University, Montréal, Quebéc, Canada.
Shimon AmirDepartment of Biology, Concordia University, Montréal, Quebéc, Canada; Department of Psychology, Center for Studies in Behavioral Neurobiology, Concordia University, Montréal, Quebéc, Canada.
Concordia University · CA

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Stressful events can disrupt circadian rhythms in mammals but mechanisms underlying this disruption remain largely unknown. One hypothesis is that stress alters circadian protein expression in the forebrain, leading to functional dysregulation of the brain circadian network and consequent disruption of circadian physiological and behavioral rhythms. Here we characterized the effects of several different stressors on the expression of the core clock protein, PER1 and the activity marker, FOS in select forebrain and hypothalamic nuclei in rats. We found that acute exposure to processive stressors, restraint and forced swim, elevated PER1 and FOS expression in the paraventricular and dorsomedial hypothalamic nuclei and piriform cortex but suppressed PER1 and FOS levels exclusively in the central nucleus of the amygdala (CEAl) and oval nucleus of the bed nucleus of the stria terminalis (BNSTov). Conversely, systemic stressors, interleukin-1β and 2-Deoxy-D-glucose, increased PER1 and FOS levels in all regions studied, including the CEAl and BNSTov. PER1 levels in the suprachiasmatic nucleus (SCN), the master pacemaker, were unaffected by any of the stress manipulations. The effect of stress on PER1 and FOS was modulated by time of day and, in the case of daily restraint, by predictability. These results demonstrate that the expression of PER1 in the forebrain is modulated by stress, consistent with the hypothesis that PER1 serves as a link between stress and the brain circadian network. Furthermore, the results show that the mechanisms that control PER1 and FOS expression in CEAl and BNSTov are uniquely sensitive to differences in the type of stressor. Finally, the finding that the effect of stress on PER1 parallels its effect on FOS supports the idea that Per1 functions as an immediate-early gene. Our observations point to a novel role for PER1 as a key player in the interface between stress and circadian rhythms.

Indexed as

AnimalsCorticosteroneGene Expression RegulationHypothalamusMalePeriod Circadian ProteinsProsencephalonProto-Oncogene Proteins c-fosRatsSeptal NucleiStress, PhysiologicalTime FactorsCorticosteronePer1 protein, ratPeriod Circadian ProteinsProto-Oncogene Proteins c-fos

Identifiers

PMID25338089
PMCPMC4206498
OpenAlexW2076665414

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.