Cited by 1,218Neuroscience and Neuropharmacology ResearchMemory and Neural MechanismsNeurogenesis and neuroplasticity mechanisms

Effects of cAMP simulate a late stage of LTP in hippocampal CA1 neurons

Frey, U., Huang, Y.-Y., Kandel, E. R.·1993·Science

Abstract

Hippocampal long-term potentiation (LTP) is thought to serve as an elementary mechanism for the establishment of certain forms of explicit memory in the mammalian brain. As is the case with behavioral memory, LTP in the CA1 region has stages: a short-term early potentiation lasting 1 to 3 hours, which is independent of protein synthesis, precedes a later, longer lasting stage (L-LTP), which requires protein synthesis. Inhibitors of cyclic adenosine monophosphate (cAMP)-dependent protein kinase (PKA) blocked L-LTP, and analogs of cAMP induced a potentiation that blocked naturally induced L-LTP. The action of the cAMP analog was blocked by inhibitors of protein synthesis. Thus, activation of PKA may be a component of the mechanism that generates L-LTP.

Integrity signals

Registry

Crossref · 10.1126/science.8389057

Cites

26 of 26 references verified0 citation errors · 0 not checkable

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

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?

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Frey, U., Huang, Y.-Y., & Kandel, E. R.
Affiliations
Howard Hughes Medical Institute (US)
Venue
Science
Published
1993-06-11
Volume
260
Issue
5114
Pages
1661-1664
ISSN
  • 0036-8075 (ISSN-L)
  • 1095-9203
OpenAlex
W2051473177
Cited by
1,218
References
26
Citations by year
2026: 6 · 2025: 13 · 2024: 24 · 2023: 10 · 2022: 14 · 2021: 31 · 2020: 20 · 2019: 28 · 2018: 29 · 2017: 29 · 2016: 24 · 2015: 40 · 2014: 37 · 2013: 43 · 2012: 47
FWCI
19.01
Type
journal article
Language
en
Open access
closed
Locations
  • Science (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health (5p01gm032099-14)
  • National Institute of General Medical Sciences (GM 32099)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Memory and Neural Mechanisms
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
Keywords
long-term potentiation, CA1 pyramidal neurons, cyclic AMP, protein kinase A, protein synthesis, memory formation, cAMP analogs, PKA inhibitors
MeSH terms
Action Potentials, Cyclic AMP, Animals, Hippocampus, Male, Memory, Neurons, Protein Kinases, Time Factors, Second Messenger Systems, Receptors, N-Methyl-D-Aspartate, Rats, Sprague-Dawley, Rats, 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