Cited by 231Neuroscience and Neuropharmacology ResearchCircadian rhythm and melatoninMemory and Neural Mechanisms

Circadian regulation of hippocampal long-term potentiation

Open access
Chaudhury, Dipesh, Wang, Louisa M., Colwell, Christopher S.·2005·Journal of Biological Rhythms

Abstract

The goal of this study is to investigate the possible circadian regulation of hippocampal excitability and long-term potentiation (LTP) measured by stimulating the Schaffer collaterals (SC) and recording the field excitatory postsynaptic potential (fEPSP) from the CA1 dendritic layer or the population spike (PS) from the soma in brain slices of C3H and C57 mice. These 2 strains of mice were of interest because the C3H mice secrete melatonin rhythmically while the C57 mice do not. The authors found that the magnitude of the enhancement of the PS was significantly greater in LTP recorded from night slices compared to day slices of both C3H and C57 mice. They also found significant diurnal variation in the decay of LTP measured with fEPSPs, with the decay slower during the night in both strains of mice. There was evidence for a diurnal rhythm in the input/output function of pyramidal neurons measured at the soma in C57 but not C3H mice. Furthermore, LTP in the PS, measured in slices prepared during the day but recorded during the night, had a profile remarkably similar to the night group. Finally, PS recordings were carried out in slices from C3H mice maintained in constant darkness prior to experimentation. Again, the authors found that the magnitude of the enhancement of the PS was significantly greater in LTP recorded from subjective night slices compared to subjective day slices. These results provide the 1st evidence that an endogenous circadian oscillator modulates synaptic plasticity in the hippocampus.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1177/0748730405276352

Cites

64 of 64 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • Projections from the suprachiasmatic nucleus to the locus coeruleus are important for contextual fear conditioning, circadian regulation of the sleep-wake cycle, and synaptic plasticity including long-term potentiation.

    “contextual fear conditioning, circadian regulation of the sleep-wake cycle (Gonzales and Aston-Jones, 2006), and synaptic plasticity including long-term potentiation- (Chaudhury et al., 2005; Chaudhury and Colwell, 2002).”
  • Circadian rhythms in contextual fear conditioning and synaptic plasticity (long-term potentiation) have been reported in mice.

    “For example, circadian rhythms in contextual fear conditioning and synaptic plasticity (long-term potentiation, LTP) have been reported in mice (Chaudhury et al., 2005; Chaudhury and Colwell, 2002).”

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Chaudhury, D., Wang, L. M., & Colwell, C. S.
Affiliations
University of California, Los Angeles (US)
Corresponding author
Colwell, Christopher S.
Venue
Journal of Biological Rhythms
Published
2005-06
Volume
20
Issue
3
Pages
225-236
ISSN
  • 0748-7304 (ISSN-L)
  • 1552-4531
OpenAlex
W2117889752
Cited by
231
References
64
Citations by year
2026: 9 · 2025: 12 · 2024: 2 · 2023: 16 · 2022: 10 · 2021: 16 · 2020: 13 · 2019: 16 · 2018: 13 · 2017: 10 · 2016: 13 · 2015: 6 · 2014: 14 · 2013: 6 · 2012: 13
FWCI
2.66
Type
journal article
Language
en
Open access
Locations
  • Journal of Biological Rhythms (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • eScholarship (California Digital Library) (submittedVersion)
Funders
National Institute of Mental Health (R03MH059186)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
Keywords
circadian rhythm, long-term potentiation, hippocampus, melatonin, C3H mice, C57 mice, diurnal variation, synaptic plasticity, Schaffer collateral stimulation, CA1, population spike, input-output function, pyramidal neurons, constant darkness
MeSH terms
Animals, Circadian Rhythm, Darkness, Dendrites, Electrophysiology, Hippocampus, Male, Mice, Inbred C3H, Mice, Inbred C57BL, Long-Term Potentiation, Excitatory Postsynaptic Potentials, Mice, In Vitro Techniques

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review