Evidence map›Paper›PMID 18547251›Full record

ArticleThe European journal of neuroscience2008

Dopamine modulates diurnal and circadian rhythms of protein phosphorylation in photoreceptor cells of mouse retina.

Nikita Pozdeyev, Gianluca Tosini, Li Li, Fatima Ali, Stanislav Rozov, Rehwa H Lee, P Michael Iuvone

Open access · greenAbstract read
In one paragraph

Article in The European journal of neuroscience, 2008. 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
1.9field-weighted citation impact, top 16% 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, 75 citations in OpenAlex.

  1. The Role of Retinal Dysfunction in Myopia Development.Cellular and molecular neurobiology · 2023
    Review
  2. Review
  3. Article
  4. Article
  5. Article
  6. Ambient Light Regulates Retinal Dopamine Signaling and Myopia Susceptibility.Investigative ophthalmology & visual science · 2021
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Removal of clock geneProceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  12. Article
  13. Ocular Clocks: Adapting Mechanisms for Eye Functions and Health.Investigative ophthalmology & visual science · 2018
    Review
  14. Article
  15. Circadian rhythms, refractive development, and myopia.Ophthalmic & physiological optics : the journal of the British College of Ophthalmic Opticians (Optometrists) · 2018
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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 4 institutions in 2 countries.

Nikita PozdeyevDepartment of Pharmacology, Emory University School of Medicine, Atlanta, GA, USA.
Gianluca Tosini
Li Li
Fatima Ali
Stanislav Rozov
Rehwa H Lee
P Michael Iuvone
Emory University · USInstitute of Evolutionary Physiology and Biochemistry · RUMorehouse School of Medicine · USVA Sepulveda Ambulatory Care Center · US

Funding

Atlanta Clinical and Translational Science Institute (ACTSI) RenewalUL1TR000454 · NCATS · EMORY UNIVERSITY · PI STEPHENS, DAVID S · 2012 to 2016
$25.8M
P30-Core Grant for Vision Research Core CP30EY006360 · NEI · EMORY UNIVERSITY · PI BOATRIGHT, JEFFREY H · 1986 to 2025
$15.3M
Neuromodulators and Circadian Clocks: Roles in Retinal Function and DysfunctionR01EY004864 · NEI · EMORY UNIVERSITY · PI IUVONE, P MICHAEL · 1985 to 2018
$7.0M
Photic and Circadian Regulation of Retinal MelatoninR01NS043459 · NINDS · MOREHOUSE SCHOOL OF MEDICINE · PI TOSINI, GIANLUCA · 2003 to 2010
$2.3M
Neuromodulators and Signaling Cascades in RetinaR01EY014764 · NEI · EMORY UNIVERSITY · PI IUVONE, P MICHAEL · 2004 to 2007
$1.4M
Photic and circadian regulation of retinal melatoninR56NS043459 · NINDS · MOREHOUSE SCHOOL OF MEDICINE · PI TOSINI, GIANLUCA · 2011 to 2011
$368k
NCATS NIH HHS UL1 TR000454NEI NIH HHS EY004864NEI NIH HHS EY014764NEI NIH HHS P30 EY006360NEI NIH HHS R01 EY004864NEI NIH HHS R01 EY014764NINDS NIH HHS NS43459NINDS NIH HHS R01 NS043459NINDS NIH HHS R56 NS043459
6 · The paper itself

Abstract

Many aspects of photoreceptor metabolism are regulated as diurnal or circadian rhythms. The nature of the signals that drive rhythms in mouse photoreceptors is unknown. Dopamine amacrine cells in mouse retina express core circadian clock genes, leading us to test the hypothesis that dopamine regulates rhythms of protein phosphorylation in photoreceptor cells. To this end we investigated the phosphorylation of phosducin, an abundant photoreceptor-specific phosphoprotein. In mice exposed to a daily light-dark cycle, robust daily rhythms of phosducin phosphorylation and retinal dopamine metabolism were observed. Phospho-phosducin levels were low during the daytime and high at night, and correlated negatively with levels of the dopamine metabolite 3,4-dihydroxyphenylacetic acid. The effect of light on phospho-phosducin levels was mimicked by pharmacological activation of dopamine D4 receptors. The amplitude of the diurnal rhythm of phospho-phosducin was reduced by > 50% in D4 receptor-knockout mice, due to higher daytime levels of phospho-phosducin. In addition, the daytime level of phospho-phosducin was significantly elevated by L-745,870, a dopamine D4 receptor antagonist. These data indicate that dopamine and other light-dependent processes cooperatively regulate the diurnal rhythm of phosducin phosphorylation. Under conditions of constant darkness a circadian rhythm of phosducin phosphorylation was observed, which correlated negatively with the circadian rhythm of 3,4-dihydroxyphenylacetic acid levels. The circadian fluctuation of phospho-phosducin was completely abolished by constant infusion of L-745,870, indicating that the rhythm of phospho-phosducin level is driven by dopamine. Thus, dopamine release in response to light and circadian clocks drives daily rhythms of protein phosphorylation in photoreceptor cells.

Indexed as

3,4-Dihydroxyphenylacetic AcidAnimalsCircadian RhythmDark AdaptationDopamineDopamine AgonistsDopamine AntagonistsEye ProteinsGTP-Binding Protein RegulatorsLightMiceMice, Inbred C57BLMice, KnockoutPhosphoproteinsPhosphorylationPhotic Stimulation3,4-Dihydroxyphenylacetic AcidDopamineDopamine AgonistsDopamine AntagonistsEye ProteinsGTP-Binding Protein RegulatorsphosducinPhosphoproteinsReceptors, Dopamine D4

Identifiers

PMID18547251
PMCPMC2440701
OpenAlexW2067674238

What OpenQuestion holds

Textmetadata
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.