Evidence map›Paper›PMID 20096587›Full record

ArticleCurrent biology : CB2010

Roles of dopamine in circadian rhythmicity and extreme light sensitivity of circadian entrainment.

Jay Hirsh, Thomas Riemensperger, Hélène Coulom, Magali Iché, Jamie Coupar, Serge Birman

Open access · bronzeAbstract read
In one paragraph

Article in Current biology : CB, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 50 papers.

0numbers the graph read from it
0cells of the map it votes in
50citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

50 citing papers in PubMed, 82 citations in OpenAlex.

  1. Article
  2. Review
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  5. Two light sensors decode moonlight versus sunlight to adjust a plastic circadian/circalunidian clock to moon phase.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
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  9. Study on the Sleep-Improvement Effects ofFoods (Basel, Switzerland) · 2021
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  15. 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 2 institutions in 2 countries.

Jay HirshDepartment of Biology, University of Virginia, Charlottesville, VA 22903, USA. jh6u@virginia.edu <jh6u@virginia.edu>
Thomas Riemensperger
Hélène Coulom
Magali Iché
Jamie Coupar
Serge Birman
Centre National de la Recherche Scientifique · FRUniversity of Virginia · US

Funding

Mechanisms of compensation for loss of brain dopamineR01GM084128 · NIGMS · UNIVERSITY OF VIRGINIA · PI HIRSH, JAY · 2009 to 2023
$3.8M
NIGMS NIH HHS R01 GM084128NIGMS NIH HHS R01 GM84128
6 · The paper itself

Abstract

Light has profound behavioral effects on almost all animals, and nocturnal animals show sensitivity to extremely low light levels [1-4]. Crepuscular, i.e., dawn/dusk-active animals such as Drosophila melanogaster are thought to show far less sensitivity to light [5-8]. Here we report that Drosophila respond to extremely low levels of monochromatic blue light. Light levels three to four orders of magnitude lower than previously believed impact circadian entrainment and the light-induced stimulation of locomotion known as positive behavioral masking. We use GAL4;UAS-mediated rescue of tyrosine hydroxylase (DTH) mutant (ple) flies to study the roles of dopamine in these processes. We present evidence for two roles of dopamine in circadian behaviors. First, rescue with either a wild-type DTH or a DTH mutant lacking neural expression leads to weak circadian rhythmicity, indicating a role for strictly regulated DTH and dopamine in robust circadian rhythmicity. Second, the DTH rescue strain deficient in neural dopamine selectively shows a defect in circadian entrainment to low light, whereas another response to light, positive masking, has normal light sensitivity. These findings imply separable pathways from light input to the behavioral outputs of masking versus circadian entrainment, with only the latter dependent on dopamine.

Indexed as

AnimalsAnimals, Genetically ModifiedCentral Nervous SystemCircadian RhythmDopamineDrosophila melanogasterDrosophila ProteinsMotor ActivityPhotic StimulationTyrosine 3-MonooxygenaseDopamineDrosophila ProteinsTyrosine 3-Monooxygenase

Identifiers

PMID20096587
PMCPMC2811851
OpenAlexW1999992568

What OpenQuestion holds

Textmetadata
LicenceTDM
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.