Evidence map›Paper›PMID 23850608›Full record

ArticleNeuroscience letters2013

CB1 cannabinoid receptor agonist prevents NGF-induced sensitization of TRPV1 in sensory neurons.

Thomas S McDowell, Zun-Yi Wang, Ruchira Singh, Dale Bjorling

Open access · greenAbstract read
In one paragraph

Article in Neuroscience letters, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
1.4field-weighted citation impact, top 20% 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

18 citing papers in PubMed, 23 citations in OpenAlex.

  1. Trial
  2. Review
  3. Electroacupuncture alleviates zymosan-induced colorectal hypersensitivity.Journal of traditional Chinese medicine = Chung i tsa chih ying wen pan · 2025
    Article
  4. Review
  5. Article
  6. Review
  7. Review
  8. Article
  9. Article
  10. Article
  11. Review
  12. The Cannabinoids ΔCannabis and cannabinoid research · 2018
    Article
  13. Article
  14. Neurotrophins and Neuropathic Pain: Role in Pathobiology.Molecules (Basel, Switzerland) · 2015
    Review
  15. Article
  16. Social stress induces changes in urinary bladder function, bladder NGF content, and generalized bladder inflammation in mice.American journal of physiology. Regulatory, integrative and comparative physiology · 2014
    Article
  17. Article
  18. 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

4 authors at 1 institution in 1 country.

Thomas S McDowellDepartment of Anesthesiology, School of Medicine and Public Health, University of Wisconsin-Madison, 600 Highland Avenue, Madison, WI 53792-3272, USA. tsmcdowe@wisc.edu
Zun-Yi Wang
Ruchira Singh
Dale Bjorling
University of Wisconsin–Madison · US

Funding

Neurovascular and Behavorial Response to CystitisR01DK066349 · NIDDK · UNIVERSITY OF WISCONSIN-MADISON · PI BJORLING, DALE EDMOND · 2003 to 2010
$1.6M
Endogenous Cannabinoids and NGF Signaling in Pain Associated with CystitisR01DK088806 · NIDDK · UNIVERSITY OF WISCONSIN-MADISON · PI BJORLING, DALE EDMOND · 2010 to 2013
$1.3M
NIDDK NIH HHS R01 DK 066349NIDDK NIH HHS R01 DK066349NIDDK NIH HHS R01 DK088806
6 · The paper itself

Abstract

The transient receptor potential vanilloid type 1 channel (TRPV1) and nerve growth factor (NGF) are important mediators of inflammatory pain. NGF released during inflammation sensitizes TRPV1 in afferent nerve endings of peripheral nociceptors, increasing pain sensation. Cannabinoids, by activating CB1 G protein-coupled receptors, produce analgesia in a variety of pain models, though the exact mechanisms are not known. We tested the hypothesis that activation of the CB1 receptor by cannabinoids attenuates NGF-induced TRPV1 sensitization. TRPV1-mediated currents were measured in acutely isolated primary sensory neurons with the whole-cell patch clamp technique using capsaicin (100 nM) as the agonist. After the first capsaicin application, during which the baseline current was measured, cells were exposed to NGF (100 ng/mL), and the capsaicin application was repeated after 5 min. NGF sensitized TRPV1 in 31.0% of cells (13 of 42), with a mean (±SE) increase in the capsaicin-induced current of 262 ± 47% over the baseline current. When the cannabinoid agonist ACEA (arachidonoyl-2'-chloroethylamide; 10nM) was given before NGF, only 10.8% of cells (4 of 37) were sensitized (p<0.05). Neither this rate, nor the magnitude of the sensitization (198 ± 63% of baseline) were different from that seen in cells not treated with NGF (3 of 25 cells sensitized (12.0%), 253 ± 70% of baseline). Pretreatment with the CB1 antagonist AM-251 (100 nM) prevented the effect of ACEA on NGF-induced sensitization. These results support the hypothesis that cannabinoids, acting through CB1 receptors, may produce analgesia in part by preventing NGF-induced sensitization of TRPV1 in afferent nociceptor nerve endings.

Indexed as

AnimalsEndocannabinoidsGanglia, SpinalNerve Growth FactorRatsReceptor, Cannabinoid, CB1TRPV Cation Channelsarachidonoyl-2 chloroethanolamineEndocannabinoidsNerve Growth FactorReceptor, Cannabinoid, CB1Trpv1 protein, ratTRPV Cation ChannelsAnalgesiaCannabinoidsNGFNociceptorPatch clampTRPV1

Identifiers

PMID23850608
PMCPMC3752375
OpenAlexW1969639653

What OpenQuestion holds

Textmetadata
LicenceTDM
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.