Evidence map›Paper›PMID 19846698›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2009

T-type calcium channel inhibition underlies the analgesic effects of the endogenous lipoamino acids.

Guillaume Barbara, Abdelkrim Alloui, Joël Nargeot, Philippe Lory, Alain Eschalier, Emmanuel Bourinet, Jean Chemin

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 51 papers.

0numbers the graph read from it
0cells of the map it votes in
51citing papers in PubMed
6.7field-weighted citation impact, top 3% 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

51 citing papers in PubMed, 114 citations in OpenAlex.

  1. Evaluating FABP5 as a Therapeutic Target for Pain Management.European journal of pain (London, England) · 2026
    Review
  2. Rho signaling promotes cell excitability and synaptic transmission.bioRxiv : the preprint server for biology · 2025
    Article
  3. Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Review
  9. Modulation of Recombinant Human T-Type Calcium Channels by ΔCannabis and cannabinoid research · 2022
    Article
  10. Article
  11. Article
  12. Receptor-Dependent and Independent Regulation of Voltage-Gated CaInternational journal of molecular sciences · 2021
    Review
  13. Review
  14. Article
  15. Biomolecules · 2019
    Review
  16. Review
  17. Review
  18. Review
  19. Article
  20. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

7 authors at 4 institutions in 1 country.

Guillaume BarbaraDépartement de Physiologie, Institut de Génomique Fonctionnelle, Centre National de la Recherche Scientifique Unité Mixte de Recherche 5203, INSERM U661, Universités de Montpellier, 34094 Montpellier, France.
Abdelkrim Alloui
Joël Nargeot
Philippe Lory
Alain Eschalier
Emmanuel Bourinet
Jean Chemin
Institut de Génomique Fonctionnelle · FRCentre Hospitalier Universitaire de Clermont-Ferrand · FRInserm · FRUniversity of Clermont Auvergne · FR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Lipoamino acids are anandamide-related endogenous molecules that induce analgesia via unresolved mechanisms. Here, we provide evidence that the T-type/Cav3 calcium channels are important pharmacological targets underlying their physiological effects. Various lipoamino acids, including N-arachidonoyl glycine (NAGly), reversibly inhibited Cav3.1, Cav3.2, and Cav3.3 currents, with potent effects on Cav3.2 [EC(50) approximately 200 nm for N-arachidonoyl 3-OH-gamma-aminobutyric acid (NAGABA-OH)]. This inhibition involved a large shift in the Cav3.2 steady-state inactivation and persisted during fatty acid amide hydrolase (FAAH) inhibition as well as in cell-free outside-out patch. In contrast, lipoamino acids had weak effects on high-voltage-activated (HVA) Cav1.2 and Cav2.2 calcium currents, on Nav1.7 and Nav1.8 sodium currents, and on anandamide-sensitive TRPV1 and TASK1 currents. Accordingly, lipoamino acids strongly inhibited native Cav3.2 currents in sensory neurons with small effects on sodium and HVA calcium currents. In addition, we demonstrate here that lipoamino acids NAGly and NAGABA-OH produced a strong thermal analgesia and that these effects (but not those of morphine) were abolished in Cav3.2 knock-out mice. Collectively, our data revealed lipoamino acids as a family of endogenous T-type channel inhibitors, suggesting that these ligands can modulate multiple cell functions via this newly evidenced regulation.

Indexed as

AnalgesicsAnimalsArachidonic AcidsBehavior, AnimalCalciumCalcium Channel BlockersCalcium Channels, L-TypeCalcium Channels, T-TypeCells, CulturedDisease Models, AnimalElectric Stimulationgamma-Aminobutyric AcidGanglia, SpinalGlycineGreen Fluorescent ProteinsHumansAnalgesicsArachidonic AcidsCalciumCalcium Channel BlockersCalcium Channels, L-TypeCalcium Channels, T-Typegamma-Aminobutyric AcidGlycineGreen Fluorescent ProteinsMorphineN-arachidonoyl-gamma-amino-butyric acidN-arachidonylglycineNAV1.7 Voltage-Gated Sodium ChannelNerve Tissue ProteinsPotassium Channels, Tandem Pore Domainpotassium channel subfamily K member 3SCN9A protein, humanSodium ChannelsTRPV1 protein, humanTRPV Cation Channels

Identifiers

PMID19846698
PMCPMC6665211
OpenAlexW2015834600

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.