Evidence map›Paper›PMID 34794460›Full record

ArticleMolecular brain2021

Impaired wakefulness and rapid eye movement sleep in dopamine-deficient mice.

Mitsuaki Kashiwagi, Mika Kanuka, Kaeko Tanaka, Masayo Fujita, Ayaka Nakai, Chika Tatsuzawa, Kazuto Kobayashi, Kazutaka Ikeda, Yu Hayashi

Open access · goldAbstract read
In one paragraph

Article in Molecular brain, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.7field-weighted citation impact, top 33% 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

7 citing papers in PubMed, 12 citations in OpenAlex.

  1. Review
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  6. Multiple ultradian rhythms of metabolism, body temperature and activity in Djungarian hamsters.Journal of comparative physiology. B, Biochemical, systemic, and environmental physiology · 2024
    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

9 authors at 3 institutions in 1 country.

Mitsuaki KashiwagiInternational Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, 305-8575, Japan.
Mika KanukaInternational Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, 305-8575, Japan.
Kaeko TanakaInternational Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, 305-8575, Japan.
Masayo FujitaAddictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Setagaya-ku, Tokyo, 156-8506, Japan.
Ayaka NakaiInternational Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, 305-8575, Japan.
Chika TatsuzawaInternational Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, 305-8575, Japan.
Kazuto KobayashiDepartment of Molecular Genetics, Institute of Biomedical Sciences, Fukushima Medical University, Fukushima, 960-1295, Japan.
Kazutaka IkedaAddictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Setagaya-ku, Tokyo, 156-8506, Japan.
Yu HayashiInternational Institute for Integrative Sleep Medicine (WPI-IIIS), University of Tsukuba, Tsukuba, 305-8575, Japan. hayashi.yu.4n@kyoto-u.ac.jp.ORCID 0000-0001-5007-4532
University of Tsukuba · JPTokyo Metropolitan Institute of Medical Science · JPFukushima Medical University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Despite the established roles of the dopaminergic system in promoting arousal, the effects of loss of dopamine on the patterns of sleep and wakefulness remain elusive. Here, we examined the sleep architecture of dopamine-deficient (DD) mice, which were previously developed by global knockout of tyrosine hydroxylase and its specific rescue in noradrenergic and adrenergic neurons. We found that DD mice have reduced time spent in wakefulness. Unexpectedly, DD mice also exhibited a marked reduction in the time spent in rapid eye movement (REM) sleep. The electroencephalogram power spectrum of all vigilance states in DD mice were also affected. These results support the current understanding of the critical roles of the dopaminergic system in maintaining wakefulness and also implicate its previously unknown effects on REM sleep.

Indexed as

Sleep, REMWakefulnessAnimalsDopamineElectroencephalographyMiceSleepDopamineDopamineMouseNREM sleepREM sleep

Identifiers

PMID34794460
PMCPMC8600805
OpenAlexW3211703625

What OpenQuestion holds

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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.