Cited by 208Sleep and Wakefulness ResearchMemory and Neural MechanismsSleep and Work-Related Fatigue

Sleep deprivation impairs spatial memory and decreases extracellular signal-regulated kinase phosphorylation in the hippocampus

Guan, Zhiwei, Peng, Xuwen, Fang, Jidong·2004·Brain Research

Abstract

Loss of sleep may result in memory impairment. However, little is known about the biochemical basis for memory deficits induced by sleep deprivation. Extracellular signal-regulated kinase (ERK) is involved in memory consolidation in different tasks. Phosphorylation of ERK is necessary for its activation and is an important step in mediating neuronal responses to synaptic activities. The aim of the present study was to determine the effects of total sleep deprivation (TSD) on memory and ERK phosphorylation in the brain. Rats were trained in Morris water maze to find a hidden platform (a spatial task) or a visible platform (a nonspatial task) after 6 h TSD or spontaneous sleep. TSD had no effect on spatial learning, but significantly impaired spatial memory tested 24 h after training. Nonspatial learning and memory were not impaired by TSD. Phospho-ERK levels in the hippocampus were significantly reduced after 6 h TSD compared to the controls and returned to the control levels after 2 h recovery sleep. Total ERK1 and ERK2 were slightly increased after 6 h TSD and returned to the control levels after 2 h recovery sleep. These alterations were not observed in the cortex after TSD. Protein phosphotase-1 and mitogen-activated protein kinase phosphatase-2, which dephosphorylates phospho-ERK, were also measured, but they were not altered by TSD. The impairments of both spatial memory and ERK phosphorylation indicate that the hippocampus is vulnerable to sleep loss. These results are consistent with the idea that decreased ERK activation in the hippocampus is involved in sleep deprivation-induced spatial memory impairment.

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Crossref · 10.1016/j.brainres.2004.05.032

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  • A 6-hour period of total sleep deprivation by novelty exposure impairs acquisition of a spatial task in the Morris water maze.

    “A 6-hour period of total sleep deprivation by novelty exposure impaired acquisition of a spatial task in the Morris water maze.69”

    From Sleep Deprivation and Circadian Disruption (2015) · cites this paper as [69]

  • A 6-hour period of total sleep deprivation by novelty exposure impairs acquisition of a spatial task in the Morris water maze.

    “Moreover, a 6-hour period of total sleep deprivation by novelty exposure impaired acquisition of a spatial task in the Morris water maze.35”

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Authors
Guan, Z., Peng, X., & Fang, J.
Affiliations
Pennsylvania State University (US)
Corresponding author
Fang, Jidong
Venue
Brain Research
Publisher
Elsevier BV
Published
2004-08
Volume
1018
Issue
1
Pages
38-47
ISSN
0006-8993 (ISSN-L)
OpenAlex
W1979530444
Cited by
208
References
84
Citations by year
2026: 3 · 2025: 3 · 2024: 5 · 2023: 5 · 2022: 6 · 2021: 7 · 2020: 11 · 2019: 13 · 2018: 9 · 2017: 11 · 2016: 11 · 2015: 16 · 2014: 12 · 2013: 16 · 2012: 11
FWCI
3.53
Type
journal article
Language
en
Open access
closed
Locations
  • Brain Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Heart, Lung, and Blood Institute (HL 64245, R01HL064245)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
Keywords
sleep deprivation, spatial memory, extracellular signal-regulated kinase, ERK1/2 phosphorylation, hippocampus, memory consolidation, recovery sleep, protein phosphatase 1, Morris water maze
MeSH terms
Animals, Cerebral Cortex, Hippocampus, Male, Memory Disorders, Phosphoprotein Phosphatases, Phosphorylation, Sleep, Sleep Deprivation, Down-Regulation, Protein Tyrosine Phosphatases, Rats, Sprague-Dawley, Maze Learning, Mitogen-Activated Protein Kinase 1, Mitogen-Activated Protein Kinases, Mitogen-Activated Protein Kinase 3, Rats, Dual-Specificity Phosphatases, Mitogen-Activated Protein Kinase Phosphatases, Protein Phosphatase 2

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