Evidence map›Paper›PMID 21903141›Full record

ArticleRegulatory peptides2011

Pharmacologic antagonism of ghrelin receptors attenuates development of nicotine induced locomotor sensitization in rats.

Paul J Wellman, P Shane Clifford, Juan Rodriguez, Samuel Hughes, Shoshana Eitan, Luc Brunel, Jean-Alain Fehrentz, Jean Martinez

Abstract read
In one paragraph

Article in Regulatory peptides, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed, 2 pooled it
1.9field-weighted citation impact, top 16% 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

22 citing papers in PubMed, 2 syntheses or guidelines pooled it, 50 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Article
  5. Review
  6. Review
  7. The Role of Ghrelin/GHS-R1A Signaling in Nonalcohol Drug Addictions.International journal of molecular sciences · 2022
    Review
  8. Article
  9. Article
  10. An overview of ghrelinExpert opinion on therapeutic patents · 2020
    Review
  11. Article
  12. Article
  13. Article
  14. Ghrelin.Molecular metabolism · 2015
    Review
  15. Review
  16. Article
  17. Article
  18. Review
  19. Review
  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

8 authors at 3 institutions in 2 countries.

Paul J WellmanBehavioral Neuroscience Program, Department of Psychology, Texas A&M University, College Station, TX 77843-4235, USA. Paul-wellman@tamu.edu
P Shane Clifford
Juan Rodriguez
Samuel Hughes
Shoshana Eitan
Luc Brunel
Jean-Alain Fehrentz
Jean Martinez
Texas A&M University · USCentre National de la Recherche Scientifique · FRInstitut des Biomolécules Max Mousseron · FR

Funding

HEAVY METALS AND POLYDRUG SELF-ADMINISTRATIONR01DA013188 · NIDA · TEXAS A&M UNIVERSITY SYSTEM · PI WELLMAN, PAUL JEFFERSON · 2001 to 2010
$2.1M
NIDA NIH HHS R01 DA013188PHS HHS R01-013188
6 · The paper itself

Abstract

aimsGhrelin (GHR) is an orexigenic gut peptide that interacts with ghrelin receptors (GHR-Rs) to modulate brain reinforcement circuits. Systemic GHR infusions augment cocaine stimulated locomotion and conditioned place preference (CPP) in rats, whereas genetic or pharmacological ablation of GHR-Rs has been shown to attenuate the acute locomotor-enhancing effects of nicotine, cocaine, amphetamine and alcohol and to blunt the CPP induced by food, alcohol, amphetamine and cocaine in mice. The stimulant nicotine can induce CPP and like amphetamine and cocaine, repeated administration of nicotine induces locomotor sensitization in rats. A key issue is whether pharmacological antagonism of GHR-Rs would similarly attenuate nicotine-induced locomotor sensitization.

methodTo examine the role of GHR-Rs in the behavioral sensitizing effects of nicotine, adult male rats were injected with either 0, 3 or 6 mg/kg of the GHR-R receptor antagonist JMV 2959 (i.p.) and 20 min later with either vehicle or 0.4 mg/kg nicotine hydrogen tartrate (s.c.) on each of 7 consecutive days.

resultsRats treated with nicotine alone showed robust locomotor sensitization, whereas rats pretreated with JMV 2959 showed significantly attenuated nicotine-induced hyperlocomotion.

conclusionsThese results suggest that GHR-R activity is required for the induction of locomotor sensitization to nicotine and complement an emerging literature implicating central GHR systems in drug reward/reinforcement.

Indexed as

AnimalsGlycineMaleMotor ActivityNicotineRatsRats, Sprague-DawleyReceptors, GhrelinTriazolesGlycineN-(1-(4-(4-methoxybenzyl)-5-phenethyl-4H-1,2,4-triazol-3-yl)-2-(1H-indol-3-yl)ethyl)-2-aminoacetamideNicotineReceptors, GhrelinTriazoles

Identifiers

PMID21903141
PMCPMC3197247
OpenAlexW1966961002

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.