Evidence map›Paper›PMID 18341994›Full record

ArticleNeuron2008

TRPV1 channels mediate long-term depression at synapses on hippocampal interneurons.

Helen E Gibson, Jeffrey G Edwards, Rachel S Page, Matthew J Van Hook, Julie A Kauer

Open access · bronzeAbstract readComparative Study
In one paragraph

Article in Neuron, 2008. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 197 papers.

0numbers the graph read from it
0cells of the map it votes in
197citing papers in PubMed
13.0field-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

197 citing papers in PubMed, 378 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Article
  4. Article
  5. Article
  6. Carvone derived cannabidiol enantiomers as novel anticonvulsants.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2025
    Article
  7. Article
  8. BK channels mediate a presynaptic form of mGluR-LTD in the neonatal hippocampus.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  9. Review
  10. Therapeutic potential of transient receptor potential (TRP) channels in psychiatric disorders.Journal of neural transmission (Vienna, Austria : 1996) · 2024
    Review
  11. Article
  12. TRPV1 Channels in the Central Nervous System as Drug Targets.Pharmaceuticals (Basel, Switzerland) · 2024
    Review
  13. Article
  14. Ethanol blocks a novel form of iLTD, but not iLTP of inhibitory inputs to VTA GABA neurons.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2023
    Article
  15. Article
  16. Endocannabinoids at the synapse and beyond: implications for neuropsychiatric disease pathophysiology and treatment.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2023
    Review
  17. Article
  18. Article
  19. Supraspinal Mechanisms of Intestinal Hypersensitivity.Cellular and molecular neurobiology · 2022
    Review
  20. Article

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

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Helen E GibsonDepartment of Molecular Pharmacology, Physiology, and Biotechnology, Brown University, Providence, RI 02912, USA.
Jeffrey G Edwards
Rachel S Page
Matthew J Van Hook
Julie A Kauer
Brown University · US

Funding

Inhibitory Synaptic Transmission, Stress and Drugs of AbuseR01DA011289 · NIDA · STANFORD UNIVERSITY · PI KAUER, JULIE A. · 1997 to 2023
$6.8M
Glutamatergic Synapses on Hippocampal InterneuronsR01NS050570 · NINDS · BROWN UNIVERSITY · PI KAUER, JULIE A. · 2005 to 2008
$933k
Characterization of CA 1 hippocampal interneuron LTDF32NS049779 · NINDS · BROWN UNIVERSITY · PI EDWARDS, JEFFREY G · 2005 to 2005
$31k
NIDA NIH HHS DA11289NIDA NIH HHS R01 DA011289NINDS NIH HHS F32 NS049779NINDS NIH HHS NS049779NINDS NIH HHS NS050570NINDS NIH HHS R01 NS050570
6 · The paper itself

Abstract

TRPV1 receptors have classically been defined as heat-sensitive, ligand-gated, nonselective cation channels that integrate nociceptive stimuli in sensory neurons. TRPV1 receptors have also been identified in the brain, but their physiological role is poorly understood. Here we report that TRPV1 channel activation is necessary and sufficient to trigger long-term synaptic depression (LTD). Excitatory synapses onto hippocampal interneurons were depressed by either capsaicin, a potent TRPV1 channel activator, or the endogenously released eicosanoid, 12-(S)-HPETE, whereas neighboring excitatory synapses onto CA1 pyramidal cells were unaffected. TRPV1 receptor antagonists also prevented interneuron LTD. In brain slices from TRPV1-/- mice, LTD was absent, and neither capsaicin nor 12-(S)-HPETE elicited synaptic depression. Our results suggest that, in the hippocampus, TRPV1 receptor activation selectively modifies synapses onto interneurons. Like other forms of hippocampal synaptic plasticity, TRPV1-mediated LTD may have a role in long-term changes in physiological and pathological circuit behavior during learning and epileptic activity.

Indexed as

AnimalsHippocampusInterneuronsLong-Term Synaptic DepressionMiceMice, Inbred C57BLMice, Mutant StrainsOrgan Culture TechniquesRatsRats, Sprague-DawleySynapsesTRPV Cation ChannelsTRPV1 receptorTRPV Cation Channels

Identifiers

PMID18341994
PMCPMC2698707
OpenAlexW2053251168

What OpenQuestion holds

Textmetadata
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.