Evidence map›Paper›PMID 20880401›Full record

ArticleBritish journal of pharmacology2010

A novel peripherally restricted cannabinoid receptor antagonist, AM6545, reduces food intake and body weight, but does not cause malaise, in rodents.

N L Cluny, V K Vemuri, A P Chambers, C L Limebeer, H Bedard, J T Wood, B Lutz, A Zimmer, L A Parker, A Makriyannis and 1 more

Abstract read
In one paragraph

Article in British journal of pharmacology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 102 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
102citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

102 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Review
  6. Article
  7. AM6527, a neutral CB1 receptor antagonist, suppresses opioid taking and seeking, as well as cocaine seeking in rodents without aversive effects.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
    Article
  8. Article
  9. Cholinergic Neurotransmission Controls Orexigenic Endocannabinoid Signaling in the Gut in Diet-Induced Obesity.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024
    Article
  10. Review
  11. Article
  12. Article
  13. Article
  14. Review
  15. Review
  16. Review
  17. Peripheral CB1 receptor blockade acts as a memory enhancer through a noradrenergic mechanism.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2023
    Article
  18. Article
  19. Review
  20. Role of CBAmerican journal of physiology. Gastrointestinal and liver physiology · 2022
    Article

42 more citing papers are in PubMed but not listed here.

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

11 authors.

N L ClunyDepartment of Physiology & Pharmacology, Hotchkiss Brain Institute and Snyder Institute of Infection, Immunity and Inflammation, University of Calgary, AB, Canada.
V K Vemuri
A P Chambers
C L Limebeer
H Bedard
J T Wood
B Lutz
A Zimmer
L A Parker
A Makriyannis
K A Sharkey

Funding

Project 3 - In vivo pharmacology of cannabinoid receptor probesP01DA009158 · NIDA · UNIVERSITY OF CONNECTICUT STORRS · PI Alexandros Makriyannis · 1994 to 2026
$26.0M
Cannabinergic Medications for Methamphetamine AddictionR37DA023142 · NIDA · NORTHEASTERN UNIVERSITY · PI MAKRIYANNIS, ALEXANDROS · 2007 to 2016
$7.1M
CANNABINOID LIGANDS AND DRUGSR01DA007215 · NIDA · UNIVERSITY OF CONNECTICUT STORRS · PI MAKRIYANNIS, ALEXANDROS · 1993 to 2012
$3.6M
NIDA NIH HHS DA009158NIDA NIH HHS DA023142NIDA NIH HHS DA7215NIDA NIH HHS P01 DA009158NIDA NIH HHS R01 DA007215NIDA NIH HHS R37 DA023142
6 · The paper itself

Abstract

background and purposeCannabinoid CB(1) receptor antagonists reduce food intake and body weight, but clinical use in humans is limited by effects on the CNS. We have evaluated a novel cannabinoid antagonist (AM6545) designed to have limited CNS penetration, to see if it would inhibit food intake in rodents, without aversive effects. EXPERIMENTAL APPROACH: Cannabinoid receptor binding studies, cAMP assays, brain penetration studies and gastrointestinal motility studies were carried out to assess the activity profile of AM6545. The potential for AM6545 to induce malaise in rats and the actions of AM6545 on food intake and body weight were also investigated. KEY

resultsAM6545 binds to CB(1) receptors with a K(i) of 1.7 nM and CB(2) receptors with a K(i) of 523 nM. AM6545 is a neutral antagonist, having no effect on cAMP levels in transfected cells and was less centrally penetrant than AM4113, a comparable CB(1) receptor antagonist. AM6545 reversed the effects of WIN55212-2 in an assay of colonic motility. In contrast to AM251, AM6545 did not produce conditioned gaping or conditioned taste avoidance in rats. In rats and mice, AM6545 dose-dependently reduced food intake and induced a sustained reduction in body weight. The effect on food intake was maintained in rats with a complete subdiaphragmatic vagotomy. AM6545 inhibited food intake in CB(1) receptor gene-deficient mice, but not in CB(1)/CB(2) receptor double knockout mice. CONCLUSIONS AND IMPLICATIONS: Peripherally active, cannabinoid receptor antagonists with limited brain penetration may be useful agents for the treatment of obesity and its complications.

Indexed as

AnimalsAvoidance LearningBenzoxazinesBody WeightBrainConditioning, ClassicalCyclic AMPDose-Response Relationship, DrugEatingFemaleGastrointestinal MotilityHEK293 CellsHumansMaleMiceMice, Inbred C57BL(3R)-((2,3-dihydro-5-methyl-3-((4-morpholinyl)methyl)pyrrolo-(1,2,3-de)-1,4-benzoxazin-6-yl)(1-naphthalenyl))methanoneAM 251AM4113AM6545BenzoxazinesCyclic AMPMorpholinesNaphthalenesPiperidinesPyrazolesReceptor, Cannabinoid, CB1Receptor, Cannabinoid, CB2

Identifiers

PMID20880401
PMCPMC2990160

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.