Evidence map›Paper›PMID 22986169›Full record

ArticleNeuroscience2012

Disruption of circadian rhythmicity and suprachiasmatic action potential frequency in a mouse model with constitutive activation of glycogen synthase kinase 3.

J R Paul, R L Johnson, R S Jope, K L Gamble

Abstract read
In one paragraph

Article in Neuroscience, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed
0.9field-weighted citation impact, top 30% 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

33 citing papers in PubMed, 49 citations in OpenAlex.

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  8. Kv12-Encoded KbioRxiv : the preprint server for biology · 2023
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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

4 authors at 2 institutions in 1 country.

J R PaulDepartment of Psychiatry and Behavioral Neurobiology, University of Alabama at Birmingham, Birmingham, AL 35294-0017, USA.
R L Johnson
R S Jope
K L Gamble
University of Alabama at Birmingham · USUniversity of Miami · US

Funding

LITHIUM EFFECTS ON CHOLINERGIC ACTIVITYR01MH038752 · NIMH · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI JOPE, RICHARD S. · 1985 to 2015
$4.4M
Integration of photic and nonphotic signaling in the circadian pacemakerR00GM086683 · NIGMS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI GAMBLE, KAREN L · 2009 to 2011
$740k
Integration of photic and nonphotic signaling in the circadian pacemakerK99GM086683 · NIGMS · VANDERBILT UNIVERSITY · PI GAMBLE, KAREN L · 2009 to 2009
$70k
NIGMS NIH HHS R00 GM086683NIMH NIH HHS R01 MH038752
6 · The paper itself

Abstract

Glycogen synthase kinase 3 (GSK3) is a serine/threonine kinase that has been implicated in psychiatric diseases, neurodevelopment, and circadian regulation. Both GSK3 isoforms, α and β, exhibit a 24-h variation of inhibitory phosphorylation within the suprachiasmatic nucleus (SCN), the primary circadian pacemaker. We examined the hypothesis that rhythmic GSK3 activity is critical for robust circadian rhythmicity using GSK3α(21A/21A)/β(9A/9A) knock-in mice with serine-alanine substitutions at the inhibitory phosphorylation sites, making both forms constitutively active. We monitored wheel-running locomotor activity of GSK3 knock-in mice and used loose-patch electrophysiology to examine the effect of chronic GSK3 activity on circadian behavior and SCN neuronal activity. Double transgenic GSK3α/β knock-in mice exhibit disrupted behavioral rhythmicity, including significantly decreased rhythmic amplitude, lengthened active period, and increased activity bouts per day. This behavioral disruption was dependent on chronic activation of both GSK3 isoforms and was not seen in single transgenic GSK3α or GSK3β knock-in mice. Underlying the behavioral changes, SCN neurons from double transgenic GSK3α/β knock-in mice exhibited significantly higher spike rates during the subjective night compared to those from wild-type controls, with no differences detected during the subjective day. These results suggest that constitutive activation of GSK3 results in the loss of the typical day/night variation of SCN neuronal activity. Together, these results implicate GSK3 activity as a critical regulator of circadian behavior and neurophysiological rhythms. Because GSK3 has been implicated in numerous pathologies, understanding how GSK3 modulates circadian rhythms and neurophysiological activity may lead to novel therapeutics for pathological disorders and circadian rhythm dysfunction.

Indexed as

Action PotentialsAnimalsAnimals, Genetically ModifiedBlotting, WesternCircadian RhythmElectrophysiological PhenomenaEnzyme ActivationGlycogen Synthase Kinase 3MaleMiceMice, Inbred C57BLMice, TransgenicMotor ActivityNeuronsPatch-Clamp TechniquesPhosphorylationGlycogen Synthase Kinase 3

Identifiers

PMID22986169
PMCPMC3490018
OpenAlexW2069124255

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.