ArticleJournal of behavioral and brain science2013
Microinjection of Ghrelin into the Ventral Tegmental Area Potentiates Cocaine-Induced Conditioned Place Preference.
Article in Journal of behavioral and brain science, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 2 of them syntheses that pooled it.
What it found
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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.
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.
Who cites it
14 citing papers in PubMed, 2 syntheses or guidelines pooled it, 38 citations in OpenAlex.
- Animal studies reveal that the ghrelin pathway regulates alcohol-mediated responses.Frontiers in psychiatry · 2023Pooled it
- An Overview of Appetite-Regulatory Peptides in Addiction Processes; From Bench to Bed Side.Frontiers in neuroscience · 2021Pooled it
- Neuroendocrinology meets addiction: Emerging pharmacotherapies on the horizon.Journal of internal medicine · 2025Review
- Novel potential pharmacological approaches in treating eating disorders comorbid with substance use disorders.Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie · 2025Review
- Environmental enrichment attenuates reinstatement of heroin seeking and reverses heroin-induced upregulation of mesolimbic ghrelin receptors.Drug and alcohol dependence · 2025Article
- Metabolic hormone action in the VTA: Reward-directed behavior and mechanistic insights.Physiology & behavior · 2023Review
- Linking drug and food addiction: an overview of the shared neural circuits and behavioral phenotype.Frontiers in behavioral neuroscience · 2023Review
- Ghrelin receptor antagonist JMV2959 blunts cocaine and oxycodone drug-seeking, but not self-administration, in male rats.Frontiers in pharmacology · 2023Article
- Involvement of the ghrelin system in the maintenance and reinstatement of cocaine-motivated behaviors: a role of adrenergic action at peripheral β1 receptors.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2022Article
- The Role of Ghrelin/GHS-R1A Signaling in Nonalcohol Drug Addictions.International journal of molecular sciences · 2022Review
- Glucagon-Like Peptide-1 (GLP-1) and 5-Hydroxytryptamine 2c (5-HTInternational journal of molecular sciences · 2019Article
- Ghrelin Receptor Influence on Cocaine Reward is Not Directly Dependent on Peripheral Acyl-Ghrelin.Scientific reports · 2019Article
- Ghrelin Receptor Antagonism of Methamphetamine-Induced Conditioned Place Preference and Intravenous Self-Administration in Rats.International journal of molecular sciences · 2018Article
- Stress, Motivation, and the Gut-Brain Axis: A Focus on the Ghrelin System and Alcohol Use Disorder.Alcoholism, clinical and experimental research · 2018Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Prior work has shown that systemic cocaine pretreatment augments cocaine conditioned place preference (CPP) in rats. In contrast, ghrelin receptor antagonism attenuates cocaine and amphetamine-induced CPP. In order to further investigate ghrelin's role in dopamine-mediated reward, the present report examined whether pretreament with ghrelin, administered directly into the ventral tegmental area (VTA) of the midbrain, would potentiate the rewarding properties of cocaine as measured by CPP. Adult male Sprague-Dawley rats were given access to either side of the CPP chamber in order to determine initial side preferences. The rats were then restricted to either their non-preferred or preferred side over the course of conditioning which lasted for a total of 16 consecutive days. This was followed by a final test day to then reassess preference. On days where rats were confined to their non-preferred side, ghrelin (30 - 300 pmol) and cocaine (0.625 - 10 mg/kg IP) were administered immediately prior to the conditioning trial. On alternate days rats were treated with vehicle and placed into what was initially determined to be their preferred side. CPP was calculated as the difference in percentage of total time spent in the treatment-paired compartment during the post-conditioning session and the pre-conditioning session. Our results indicated that both cocaine and ghrelin elicited CPP and that ghrelin pre-treatment potentiated the effect of cocaine on place preference. Overall, these findings provide additional support for the argument that ghrelin signaling within the VTA enhances the rewarding effects of psychostimulant compounds.
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Registered trials
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.