Evidence map›Paper›PMID 18177494›Full record

ArticleBMC neuroscience2008

A novel site of adult doublecortin expression: neuropeptide neurons within the suprachiasmatic nucleus circadian clock.

Darren Geoghegan, David A Carter

Open access · goldAbstract read
In one paragraph

Article in BMC neuroscience, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
1.4field-weighted citation impact, top 23% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 46 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. The Cell-Autonomous Clock of VIP Receptor VPAC2 Cells Regulates Period and Coherence of Circadian Behavior.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2021
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  7. Review
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  9. Review
  10. Chronic fluoxetine increases extra-hippocampal neurogenesis in adult mice.The international journal of neuropsychopharmacology · 2014
    Article
  11. Review
  12. Article
  13. Article
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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

2 authors at 1 institution in 1 country.

Darren GeogheganSchool of Biosciences, Cardiff University, Cardiff, CF10 3US, UK. geoghegand@cardiff.ac.uk
David A Carter
Cardiff University · GB

Funding

Medical Research Council G9724886
6 · The paper itself

Abstract

backgroundThe mammalian suprachiasmatic nucleus (SCN) is composed of heterogeneous sub-groups of neurons that are organized into a neural system for the control of circadian physiology and behaviour. Molecular circadian 'clocks' are not an exclusive property of SCN neurons but the unique role of the SCN as a central integrative pacemaker is associated with specialized aspects of neuronal organization. Current studies are aimed at identifying the functional components of this hypothalamic integrative centre.

resultsIn the present study we have identified and characterized a quite novel aspect of SCN neurobiology, doublecortin (DCX) protein expression within a defined group of adult rat SCN neurons. Adult neuronal DCX expression is surprising because this microtubule-associated protein (MAP) is generally a developmentally restricted component of immature, migrating neurons. We have also demonstrated for the first time that the SCN as a whole exhibits low expression of the neuronal differentiation marker NeuN. However, DCX is co-localized with NeuN in the ventral SCN, and also with neuropeptides; DCX is extensively co-localized with GRP and partially co-localized with VIP.

conclusionThe highly selective expression of DCX in the adult SCN compared with other hypothalamic and thalamic nuclei shows that this MAP is somewhat uniquely required in certain SCN neurons, perhaps contributing to a specific functional property of the brain's circadian clock nucleus. DCX may maintain a capacity for dynamic cellular plasticity that subserves daily alterations in SCN neuronal signalling.

Indexed as

AnimalsCircadian RhythmDoublecortin Domain ProteinsDoublecortin ProteinGene Expression RegulationMaleMicrotubule-Associated ProteinsNerve Tissue ProteinsNeuronsNeuropeptidesRatsRats, Sprague-DawleySuprachiasmatic NucleusDcx protein, ratDoublecortin Domain ProteinsDoublecortin ProteinMicrotubule-Associated ProteinsNerve Tissue ProteinsNeuropeptides

Identifiers

PMID18177494
PMCPMC2253543
OpenAlexW1964047636

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.