Evidence map›Paper›PMID 18778704›Full record

ArticleExperimental eye research2008

Localization and regulation of dopamine receptor D4 expression in the adult and developing rat retina.

Laura L Klitten, Martin F Rath, Steven L Coon, Jong-So Kim, David C Klein, Morten Møller

Open access · greenAbstract read
In one paragraph

Article in Experimental eye research, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
0.7field-weighted citation impact, top 38% 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

40 citing papers in PubMed, 55 citations in OpenAlex.

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  8. Humanized dopamine DJournal of neuroscience research · 2024
    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.

Laura L KlittenDepartment of Neuroscience and Pharmacology, Panum Institute, University of Copenhagen, Copenhagen, Denmark.
Martin F Rath
Steven L Coon
Jong-So Kim
David C Klein
Morten Møller
National Institutes of Health · USUniversity of Copenhagen · DK

Funding

Pineal Regulation: Neural, transsynaptic and intracellular control mechanismsZIAHD008838 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI KLEIN, DAVID · 2009 to 2015
$2.1M
Pineal Regulation: Molecular basis of developmentZIAHD008837 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI KLEIN, DAVID · 2009 to 2015
$1.8M
Pineal Regulation: Molecular basis of development Z01HD008837 · NICHD · EUNICE KENNEDY SHRIVER NATIONAL INSTITUTE OF CHILD HEALTH & HUMAN DEVELOPMENT · PI KLEIN, DAVID · 2007 to 2008
$1.2M
Intramural NIH HHS Z01 HD008837
6 · The paper itself

Abstract

Levels of dopamine and melatonin exhibit diurnal rhythms in the rat retina. Dopamine is high during daytime adapting the retina to light, whereas melatonin is high during nighttime participating in the adaptation of the retina to low light intensities. Dopamine inhibits the synthesis of melatonin in the photoreceptors via Drd4 receptors located on the cell membrane of these cells. In this study, we show by semiquantitative in situ hybridization a prominent day/night variation in Drd4 expression in the retina of the Sprague-Dawley rat with a peak during the nighttime. Drd4 expression is seen in all retinal layers but the nocturnal increase is confined to the photoreceptors. Retinal Drd4 expression is not affected by removal of the sympathetic input to the eye, but triiodothyronine treatment induces Drd4 expression in the photoreceptors. In a developmental series, we show that the expression of Drd4 is restricted to postnatal stages with a peak at postnatal day 12. The high Drd4 expression in the rat retinal photoreceptors during the night supports physiological and pharmacologic evidence that the Drd4 receptor is involved in the dopaminergic inhibition of melatonin synthesis upon light stimulation. The sharp increase of Drd4 expression at a specific postnatal time suggests that dopamine is involved in retinal development.

Indexed as

AgingAnimalsCircadian RhythmEye ProteinsIn Situ HybridizationMalePhotoreceptor Cells, VertebrateRatsRats, Sprague-DawleyReceptors, Dopamine D4RetinaRNA, MessengerTriiodothyronineUp-RegulationDrd4 protein, ratEye ProteinsReceptors, Dopamine D4RNA, MessengerTriiodothyronine

Identifiers

PMID18778704
PMCPMC2597030
OpenAlexW2014872570

What OpenQuestion holds

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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.