Evidence map›Paper›PMID 27091299›Full record

ArticleBehavioural brain research2016

Modulation of learning and memory by the targeted deletion of the circadian clock gene Bmal1 in forebrain circuits.

Kaiden H Price, Heather Dziema, Sydney Aten, Jacob Loeser, Frances E Norona, Kari Hoyt, Karl Obrietan

Abstract read
In one paragraph

Article in Behavioural brain research, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.

0numbers the graph read from it
0cells of the map it votes in
63citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

63 citing papers in PubMed, 103 citations in OpenAlex.

  1. Review
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  9. Intestinal Clock Promotes Cognitive Memory Through Adenosine Signaling.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2025
    Article
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3 more citing papers are in PubMed but not listed here.

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 1 institution in 1 country.

Kaiden H PriceDepartment of Neuroscience, Ohio State University, Columbus, OH, USA.
Heather DziemaDepartment of Neuroscience, Ohio State University, Columbus, OH, USA.
Sydney AtenDepartment of Neuroscience, Ohio State University, Columbus, OH, USA.
Jacob LoeserDepartment of Neuroscience, Ohio State University, Columbus, OH, USA.
Frances E NoronaDepartment of Neuroscience, Ohio State University, Columbus, OH, USA.
Kari HoytDivision of Pharmacology, Ohio State University, Columbus, OH, USA.
Karl ObrietanDepartment of Neuroscience, Ohio State University, Columbus, OH, USA. Electronic address: obrietan.1@osu.edu.
The Ohio State University · US

Funding

Hippocampal Cellular RhythmsR01MH103361 · NIMH · OHIO STATE UNIVERSITY · PI OBRIETAN, KARL H · 2014 to 2018
$2.0M
Activity-dependent microRNA expression and function in the mature nervous systemR01NS066345 · NINDS · OHIO STATE UNIVERSITY · PI IMPEY, SOREN, OBRIETAN, KARL H · 2010 to 2014
$1.9M
MSK, RSK and the regulation of excitotoxic cell death and structural plasticityR01NS091302 · NINDS · OHIO STATE UNIVERSITY · PI OBRIETAN, KARL H · 2015 to 2018
$1.3M
NIMH NIH HHS R01 MH103361NINDS NIH HHS R01 NS066345NINDS NIH HHS R01 NS091302
6 · The paper itself

Abstract

A large body of literature has shown that the disruption of circadian clock timing has profound effects on mood, memory and complex thinking. Central to this time keeping process is the master circadian pacemaker located within the suprachiasmatic nucleus (SCN). Of note, within the central nervous system, clock timing is not exclusive to the SCN, but rather, ancillary oscillatory capacity has been detected in a wide range of cell types and brain regions, including forebrain circuits that underlie complex cognitive processes. These observations raise questions about the hierarchical and functional relationship between the SCN and forebrain oscillators, and, relatedly, about the underlying clock-gated synaptic circuitry that modulates cognition. Here, we utilized a clock knockout strategy in which the essential circadian timing gene Bmal1 was selectively deleted from excitatory forebrain neurons, whilst the SCN clock remained intact, to test the role of forebrain clock timing in learning, memory, anxiety, and behavioral despair. With this model system, we observed numerous effects on hippocampus-dependent measures of cognition. Mice lacking forebrain Bmal1 exhibited deficits in both acquisition and recall on the Barnes maze. Notably, loss of forebrain Bmal1 abrogated time-of-day dependent novel object location memory. However, the loss of Bmal1 did not alter performance on the elevated plus maze, open field assay, and tail suspension test, indicating that this phenotype specifically impairs cognition but not affect. Together, these data suggest that forebrain clock timing plays a critical role in shaping the efficiency of learning and memory retrieval over the circadian day.

Indexed as

Analysis of VarianceAnimalsARNTL Transcription FactorsCalcium-Calmodulin-Dependent Protein Kinase Type 2Circadian ClocksExploratory BehaviorGreen Fluorescent ProteinsHindlimb SuspensionLearningMaze LearningMemoryMiceMice, TransgenicProsencephalonSequence DeletionSuprachiasmatic NucleusARNTL Transcription FactorsBmal1 protein, mouseCalcium-Calmodulin-Dependent Protein Kinase Type 2Green Fluorescent ProteinsBMAL1Brain and muscle Arnt-like protein-1CircadianLearningMemory

Identifiers

PMID27091299
PMCPMC5344043
OpenAlexW2341411246

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.