Evidence map›Paper›PMID 35798980›Full record

ArticleNature neuroscience2022

Memory-enhancing properties of sleep depend on the oscillatory amplitude of norepinephrine.

Celia Kjaerby, Mie Andersen, Natalie Hauglund, Verena Untiet, Camilla Dall, Björn Sigurdsson, Fengfei Ding, Jiesi Feng, Yulong Li, Pia Weikop and 2 more

Open access · greenAbstract read
In one paragraph

Article in Nature neuroscience, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 156 papers.

0numbers the graph read from it
0cells of the map it votes in
156citing papers in PubMed
29.4field-weighted citation impact, top 1% 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

156 citing papers in PubMed, 267 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
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  7. Are infraslow oscillations the missing link between sleep and Alzheimer's?Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026
    Article
  8. Article
  9. Review
  10. Article
  11. Article
  12. Review
  13. A molecular integrator of sleep duration and interruption.bioRxiv : the preprint server for biology · 2026
    Article
  14. Infra-slow (<0.1 Hz) Modulation of Human Brain Pulsations in Awake and Sleep States.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2026
    Article
  15. Article
  16. Arousal state modulates human hippocampal ripples.bioRxiv : the preprint server for biology · 2026
    Article
  17. Article
  18. Review
  19. Article
  20. Article

96 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 3 institutions in 3 countries.

Celia Kjaerby *Division of Glial Disease and Therapeutics, Center for Translational Neuromedicine, University of Copenhagen, Copenhagen, Denmark. celia.kjaerby@sund.ku.dk.ORCID http://orcid.org/0000-0003-1106-9217
Mie Andersen *Division of Glial Disease and Therapeutics, Center for Translational Neuromedicine, University of Copenhagen, Copenhagen, Denmark.ORCID http://orcid.org/0000-0002-6978-585X
Natalie HauglundDivision of Glial Disease and Therapeutics, Center for Translational Neuromedicine, University of Copenhagen, Copenhagen, Denmark.ORCID http://orcid.org/0000-0002-2198-6329
Verena UntietDivision of Glial Disease and Therapeutics, Center for Translational Neuromedicine, University of Copenhagen, Copenhagen, Denmark.ORCID http://orcid.org/0000-0002-1888-6378
Camilla DallDivision of Glial Disease and Therapeutics, Center for Translational Neuromedicine, University of Copenhagen, Copenhagen, Denmark.
Björn SigurdssonDivision of Glial Disease and Therapeutics, Center for Translational Neuromedicine, University of Copenhagen, Copenhagen, Denmark.ORCID http://orcid.org/0000-0002-7484-7779
Fengfei DingDivision of Glial Disease and Therapeutics, Center for Translational Neuromedicine, Department of Neurosurgery, University of Rochester Medical Center, Rochester, NY, USA.
Jiesi FengState Key Laboratory of Membrane Biology, Peking University School of Life Sciences, Beijing, China.
Yulong LiState Key Laboratory of Membrane Biology, Peking University School of Life Sciences, Beijing, China.ORCID http://orcid.org/0000-0002-9166-9919
Pia WeikopDivision of Glial Disease and Therapeutics, Center for Translational Neuromedicine, University of Copenhagen, Copenhagen, Denmark.
Hajime HiraseDivision of Glial Disease and Therapeutics, Center for Translational Neuromedicine, University of Copenhagen, Copenhagen, Denmark.ORCID http://orcid.org/0000-0003-3806-6905
Maiken NedergaardDivision of Glial Disease and Therapeutics, Center for Translational Neuromedicine, University of Copenhagen, Copenhagen, Denmark. nedergaard@sund.ku.dk.ORCID http://orcid.org/0000-0001-6502-6031
University of Copenhagen · DKPeking University · CNShanghai Medical College of Fudan University · CN

Funding

Novel fluorescent sensors for imaging neuromodulationU01NS113358 · NINDS · UNIVERSITY OF CALIFORNIA BERKELEY · PI DAN, YANG, LI, YULONG · 2019 to 2022
$4.3M
Optimization of GPCR-based fluorescent sensors for large-scale multiplexed in vivo imaging of neuromodulationU01NS120824 · NINDS · UNIVERSITY OF SOUTHERN CALIFORNIA · PI HIRES, SAMUEL ANDREW, LI, YULONG · 2021 to 2024
$3.6M
The glymphatic system at the crossroad of integrative health approaches inchronic painR01AT011439 · NCCIH · UNIVERSITY OF ROCHESTER · PI NEDERGAARD, MAIKEN · 2021 to 2025
$3.1M
Capillary hyperemia in white matter: Novel mechanistic insight and effect of hypertension and agingRF1NS110049 · NINDS · UNIVERSITY OF ROCHESTER · PI NEDERGAARD, MAIKEN, WAN, JIANDI · 2018 to 2018
$2.9M
NCCIH NIH HHS R01 AT011439NINDS NIH HHS RF1 NS110049NINDS NIH HHS U01 NS113358NINDS NIH HHS U01 NS120824
6 · The paper itself

Abstract

Sleep has a complex micro-architecture, encompassing micro-arousals, sleep spindles and transitions between sleep stages. Fragmented sleep impairs memory consolidation, whereas spindle-rich and delta-rich non-rapid eye movement (NREM) sleep and rapid eye movement (REM) sleep promote it. However, the relationship between micro-arousals and memory-promoting aspects of sleep remains unclear. In this study, we used fiber photometry in mice to examine how release of the arousal mediator norepinephrine (NE) shapes sleep micro-architecture. Here we show that micro-arousals are generated in a periodic pattern during NREM sleep, riding on the peak of locus-coeruleus-generated infraslow oscillations of extracellular NE, whereas descending phases of NE oscillations drive spindles. The amplitude of NE oscillations is crucial for shaping sleep micro-architecture related to memory performance: prolonged descent of NE promotes spindle-enriched intermediate state and REM sleep but also associates with awakenings, whereas shorter NE descents uphold NREM sleep and micro-arousals. Thus, the NE oscillatory amplitude may be a target for improving sleep in sleep disorders.

Indexed as

NorepinephrineSleepAnimalsArousalElectroencephalographyMiceSleep, REMSleep StagesNorepinephrine

Identifiers

PMID35798980
PMCPMC9817483
OpenAlexW4284675681

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.