Cited by 241Memory and Neural MechanismsPhysiological and biochemical adaptationsNeuroscience and Neuropharmacology Research

Repeated changes of dendritic morphology in the hippocampus of ground squirrels in the course of hibernation

Popov, V.I., Bocharova, L.S., Bragin, A.G.·1992·Neuroscience

Abstract

Quantitative Golgi study of hippocampal pyramidal neurons of ground squirrels showed rapid and profound transformation of their apical dendrites in the course of hibernation. The dendrites were significantly shorter, less branched and had fewer dendritic spines in the middle of hibernation bout than in the active euthermic ground squirrels between bouts. After arousal from torpor, within 2 h dendrites completely restored their structure. During hibernation, season remodelling of the hippocampal dendrites occurs repeatedly during each torpor-activity cycle.

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Crossref · 10.1016/0306-4522(92)90336-z

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40 of 40 references verified0 citation errors · 0 not checkable

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  • Changes in dendrite length and branching are not "damage," but a form of structural plasticity.

    “This implies that reorganization of the cytoskeleton is taking place rapidly and reversibly, and that changes in dendrite length and branching are not “damage,” but a form of structural plasticity.”

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Authors
Popov, V. I., Bocharova, L. S., & Bragin, A. G.
Affiliations
  • Institute of Cell Biophysics (RU)
  • Institute of Theoretical and Experimental Biophysics (RU)
Corresponding author
Popov, V.I.
Venue
Neuroscience
Publisher
Elsevier BV
Published
1992-05
Volume
48
Issue
1
Pages
45-51
ISSN
0306-4522 (ISSN-L)
OpenAlex
W2051157780
Cited by
241
References
40
Citations by year
2026: 7 · 2025: 7 · 2024: 4 · 2023: 7 · 2022: 5 · 2021: 9 · 2020: 4 · 2019: 12 · 2018: 6 · 2017: 12 · 2016: 5 · 2015: 10 · 2014: 6 · 2013: 9 · 2012: 9
FWCI
2.12
Type
journal article
Language
en
Open access
closed
Locations
  • Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Physical Sciences › Environmental Science › Ecology › Physiological and biochemical adaptations
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
Keywords
dendritic morphology, hippocampus, ground squirrels, hibernation, torpor, dendritic spines, dendritic branching, pyramidal neurons, arousal from torpor
MeSH terms
Animals, Dendrites, Golgi Apparatus, Hibernation, Hippocampus, Neurons, Pyramidal Tracts, Sciuridae

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