Evidence map›Paper›PMID 34131037›Full record

ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2021

Cannabidiol Inhibition of Murine Primary Nociceptors: Tight Binding to Slow Inactivated States of Na

Han-Xiong Bear Zhang, Bruce P Bean

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 2 pooled it
6.3field-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

38 citing papers in PubMed, 2 syntheses or guidelines pooled it, 55 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. The psychoactive cannabinoid THC inhibits peripheral nociceptors by targeting NaNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2026
    Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Mechanism-based nonopioid analgesic targets.The Journal of clinical investigation · 2025
    Review
  11. Review
  12. Review
  13. Nav1.8, an analgesic target for nonpsychotomimetic phytocannabinoids.Proceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  14. Review
  15. Pathology of pain and its implications for therapeutic interventions.Signal transduction and targeted therapy · 2024
    Review
  16. The Use of Compounds Derived fromInternational journal of molecular sciences · 2024
    Review
  17. Article
  18. Article
  19. Article
  20. Cannabidiol inhibits NaNature communications · 2023
    Article
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

2 authors at 1 institution in 1 country.

Han-Xiong Bear ZhangDepartment of Neurobiology, Harvard Medical School, Boston, Massachusetts 02115.
Bruce P BeanDepartment of Neurobiology, Harvard Medical School, Boston, Massachusetts 02115 bruce_bean@hms.harvard.edu.
Harvard University · US

Funding

VOLTAGE DEPENDENT ION CHANNELS IN PURKINJE NEURONSR01NS036855 · NINDS · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI BEAN, BRUCE P · 1997 to 2022
$7.7M
Voltage-dependent ion channels in Purkinje neuronsR37NS036855 · NINDS · HARVARD UNIVERSITY (MEDICAL SCHOOL) · PI BEAN, BRUCE P · 2002 to 2008
$2.8M
State-dependent interaction of antiepileptic drugs with voltage-dependent sodium channels and differential regulation of excitatory and inhibitory central neuronsR01NS110860 · NINDS · HARVARD MEDICAL SCHOOL · PI BEAN, BRUCE P · 2019 to 2022
$1.9M
NINDS NIH HHS R01 NS036855NINDS NIH HHS R01 NS110860NINDS NIH HHS R37 NS036855Wellcome Trust
6 · The paper itself

Abstract

The nonpsychoactive phytocannabinoid cannabidiol (CBD) has been shown to have analgesic effects in animal studies but little is known about its mechanism of action. We examined the effects of CBD on intrinsic excitability of primary pain-sensing neurons. Studying acutely dissociated capsaicin-sensitive mouse DRG neurons at 37°C, we found that CBD effectively inhibited repetitive action potential firing, from 15-20 action potentials evoked by 1 s current injections in control to 1-3 action potentials with 2 μm CBD. Reduction of repetitive firing was accompanied by a reduction of action potential height, widening of action potentials, reduction of the afterhyperpolarization, and increased propensity to enter depolarization block. Voltage-clamp experiments showed that CBD inhibited both TTX-sensitive and TTX-resistant (TTX-R) sodium currents in a use-dependent manner. CBD showed strong state-dependent inhibition of TTX-R channels, with fast binding to inactivated channels during depolarizations and slow unbinding on repolarization. CBD alteration of channel availability at various voltages suggested that CBD binds especially tightly [

Indexed as

Action PotentialsAnalgesicsAnimalsCannabidiolCells, CulturedFemaleGanglia, SpinalMaleMiceNAV1.8 Voltage-Gated Sodium ChannelNociceptorsAnalgesicsCannabidiolNAV1.8 Voltage-Gated Sodium ChannelScn10a protein, mousecannabidiolNav1.8nociceptorsslow inactivationsodium channelsTTX-resistant

Identifiers

PMID34131037
PMCPMC8318087
OpenAlexW3169913730

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.