Evidence map›Paper›PMID 23515618›Full record

ArticleAmerican journal of physiology. Regulatory, integrative and comparative physiology2013

Activation of cannabinoid receptor 2 inhibits experimental cystitis.

Zun-Yi Wang, Peiqing Wang, Dale E Bjorling

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Regulatory, integrative and comparative physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
4.1field-weighted citation impact, top 7% 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

16 citing papers in PubMed, 37 citations in OpenAlex.

  1. Article
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  4. Review
  5. Review
  6. Article
  7. Article
  8. Review
  9. Potential of Endocannabinoids to Control Bladder Pain.Frontiers in systems neuroscience · 2018
    Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
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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

3 authors at 1 institution in 1 country.

Zun-Yi WangDepartment of Surgical Sciences, School of Veterinary Medicine, University of Wisconsin-Madison, Madison, WI 53706, USA. wangz@svm.vetmed.wisc.edu
Peiqing Wang
Dale E 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 R-01 DK-066349NIDDK NIH HHS R01 DK066349NIDDK NIH HHS R01 DK088806
6 · The paper itself

Abstract

Cannabinoids have been shown to exert analgesic and anti-inflammatory effects, and the effects of cannabinoids are mediated primarily by cannabinoid receptors 1 and 2 (CB1and CB2). Both CB1 and CB2 are present in bladders of various species, including human, monkey, and rodents, and it appears that CB2 is highly expressed in urothelial cells. We investigated whether treatment with the CB2 agonist GP1a alters severity of experimental cystitis induced by acrolein and referred mechanical hyperalgesia associated with cystitis. We also investigated whether the mitogen-activated protein kinases (MAPK), ERK1/2, p38, and JNK are involved in the functions of CB2. We found that treatment with the selective CB2 agonist GP1a (1-10 mg/kg, ip) inhibited the severity of bladder inflammation 3 h after intravesical instillation of acrolein in a dose-dependent manner, and inhibition reached significance at a dose of 10 mg/kg (P < 0.05). Treatment with GP1a (10 mg/kg) inhibited referred mechanical hyperalgesia associated with cystitis (P < 0.05). The inhibitory effects of the CB2 agonist were prevented by the selective CB2 antagonist AM630 (10 mg/kg, sc). We further demonstrated the inhibitory effects of CB2 appear to be at least partly mediated by reducing bladder inflammation-induced activation of ERK1/2 MAPK pathway. The results of the current study indicate that CB2 is a potential therapeutic target for treatment of bladder inflammation and pain in patients.

Indexed as

AcroleinAnimalsCannabinoid Receptor AgonistsCannabinoid Receptor AntagonistsCystitisDose-Response Relationship, DrugFemaleHyperalgesiaIndenesIndolesMiceMice, Inbred C57BLMitogen-Activated Protein KinasesPain MeasurementPyrazolesReceptor, Cannabinoid, CB2AcroleinCannabinoid Receptor AgonistsCannabinoid Receptor AntagonistsIndenesIndolesiodopravadolineMitogen-Activated Protein KinasesN-(piperidin-1-yl)-1-(2,4-dichlorophenyl)-1,4-dihydro-6-methylindeno(1,2-c)pyrazole-3-carboxamidePyrazolesReceptor, Cannabinoid, CB2cannabinoid receptor 2cystitisGP1ahyperalgesiamice

Identifiers

PMID23515618
PMCPMC3652164
OpenAlexW1985159472

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.