Evidence map›Paper›PMID 17245358›Full record

ArticleBritish journal of pharmacology2007

Endothelium-dependent metabolism by endocannabinoid hydrolases and cyclooxygenases limits vasorelaxation to anandamide and 2-arachidonoylglycerol.

W-S V Ho, M D Randall

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 40 papers.

0numbers the graph read from it
0cells of the map it votes in
40citing papers in PubMed
7.4field-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

40 citing papers in PubMed, 70 citations in OpenAlex.

  1. Trial
  2. Short Communication: The Peripheral Cannabinoid CBInternational journal of molecular sciences · 2026
    Article
  3. Article
  4. Article
  5. Review
  6. Review
  7. Article
  8. Article
  9. Effects of Oleamide on the Vasomotor Responses in the Rat.Cannabis and cannabinoid research · 2020
    Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Review
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. 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.

W-S V HoSchool of Biomedical Sciences, University of Nottingham Medical School, Queen's Medical Centre, Nottingham, UK. vanessa.ho@nottingham.ac.uk
M D Randall
University of Nottingham · GB

Funding

British Heart Foundation PG/06/064/20985
6 · The paper itself

Abstract

background and purposeThe endocannabinoids, N-arachidonoylethanolamide (anandamide) and 2-arachidonoylglycerol (2-AG) are rapidly degraded by fatty acid amide hydrolase (FAAH) and monoacylglycerol lipase (MGL). Whilst these lipid mediators are known to modulate vascular tone, the extent to which they are inactivated via local metabolism in the vasculature remains unclear. EXPERIMENTAL APPROACH: In rat isolated small mesenteric arteries, the regulatory role of FAAH, MGL and cyclooxygenase (COX) in relaxant responses to anandamide and 2-AG was evaluated by using inhibitors of these enzymes. Relaxations to non-hydrolysable analogues of endocannabinoids and arachidonic acid were also examined. KEY

resultsRelaxation to anandamide but not 2-AG was potentiated by the selective FAAH inhibitor, URB597 (1 microM). In contrast, MAFP (10 microM; an inhibitor of FAAH and MGL) enhanced responses to both anandamide and 2-AG. Inhibition of COX-1 by indomethacin (10 microM) potentiated relaxations to 2-AG, whereas inhibition of COX-2 by nimesulide (10 microM) potentiated anandamide-induced relaxation. With the exception of MAFP, effects of FAAH and COX inhibitors were dependent on the endothelium. Relaxation to methanandamide and noladin ether, the non-hydrolysable analogues of anandamide and 2-AG respectively, were insensitive to the enzyme inhibitors. CONCLUSION AND IMPLICATIONS: This study shows that local activity of FAAH, MGL and COX, which is present largely in the endothelium, limits the vasodilator action of endocannabinoids in rat small mesenteric arteries. Despite the differential roles played by these enzymes on relaxation to anandamide versus 2-AG, our results suggest that inhibitors of these enzymes enhance the vascular impact of endocannabinoids.

Indexed as

EndocannabinoidsAmidohydrolasesAnimalsArachidonic AcidsBenzamidesCannabinoid Receptor ModulatorsCarbamatesCyclooxygenase 1Cyclooxygenase 2Cyclooxygenase InhibitorsDose-Response Relationship, DrugEndothelium, VascularEnzyme InhibitorsFatty Acid Amide HydrolasesGlyceridesHydrolasesAmidohydrolasesanandamideArachidonic AcidsBenzamidesCannabinoid Receptor ModulatorsCarbamatesClec10a protein, ratcyclohexyl carbamic acid 3'-carbamoylbiphenyl-3-yl esterCyclooxygenase 1Cyclooxygenase 2Cyclooxygenase InhibitorsEndocannabinoidsEnzyme InhibitorsFatty Acid Amide HydrolasesGlyceridesglyceryl 2-arachidonateHydrolasesLectinsLectins, C-TypeMembrane Proteinsmethanandamidemethyl arachidonylfluorophosphonatenoladin etherOrganophosphonatesPolyunsaturated AlkamidesProstaglandin-Endoperoxide SynthasesPtgs1 protein, ratPtgs2 protein, ratReceptors, Cell SurfaceVasodilator Agents

Identifiers

PMID17245358
PMCPMC1942073
OpenAlexW2128549678

What OpenQuestion holds

Textmetadata
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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.