ArticleNeuropharmacology2015
Intravenous self-administration of entactogen-class stimulants in male rats.
Article in Neuropharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers.
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.
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
41 citing papers in PubMed, 60 citations in OpenAlex.
- Methamphetamine and α-pyrrolidinopentiophenone (α-PVP) intravenous self-administration in female and male rats.Psychopharmacology · 2025Article
- Methamphetamine and α-pyrrolidinopentiophenone (α-PVP) Intravenous Self-Administration in Female and Male Rats.bioRxiv : the preprint server for biology · 2025Article
- A Multimodal Preclinical Assessment of MDMA in Female and Male Rats: Prohedonic, Cognition Disruptive, and Prosocial Effects.Psychedelic medicine (New Rochelle, N.Y.) · 2024Article
- Effects of ambient temperature on locomotor activity and place conditioning elicited by abused psychostimulants in mice: Role of 3,4-methylenedioxy moiety.Drug and alcohol dependence · 2023Article
- Pharmacological effects of methylone and MDMA in humans.Frontiers in pharmacology · 2023Article
- Effects of the Phenethylamine 2-Cl-4,5-MDMA and the Synthetic Cathinone 3,4-MDPHP in Adolescent Rats: Focus on Sex Differences.Biomedicines · 2022Article
- Sex differences in inflammatory cytokine levels following synthetic cathinone self-administration in rats.Neurotoxicology · 2022Article
- Lack of evidence for positive reinforcing and prosocial effects of MDMA in pair-housed male and female rats.European journal of pharmacology · 2021Article
- An updated review on synthetic cathinones.Archives of toxicology · 2021Review
- Brain Concentrations of Methylone and Its Metabolites after Systemic Methylone Administration: Relationship to Pharmacodynamic Effects.The Journal of pharmacology and experimental therapeutics · 2021Article
- Alpha-pyrrolidinopentiophenone and mephedrone self-administration produce differential neurochemical changes following short- or long-access conditions in rats.European journal of pharmacology · 2021Article
- MDPV self-administration in female rats: influence of reinforcement history.Psychopharmacology · 2021Article
- Self-Administration of Entactogen Psychostimulants Dysregulates Gamma-Aminobutyric Acid (GABA) and Kappa Opioid Receptor Signaling in the Central Nucleus of the Amygdala of Female Wistar Rats.Frontiers in behavioral neuroscience · 2021Article
- Female rats self-administer heroin by vapor inhalation.Pharmacology, biochemistry, and behavior · 2020Article
- Designer drugs: mechanism of action and adverse effects.Archives of toxicology · 2020Review
- Synthetic psychoactive cathinones: hypothermia and reduced lethality compared to methamphetamine and methylenedioxymethamphetamine.Pharmacology, biochemistry, and behavior · 2020Article
- Abuse potential and toxicity of the synthetic cathinones (i.e., "Bath salts").Neuroscience and biobehavioral reviews · 2020Review
- The drug purity discounting task: Ecstasy use likelihood is reduced by probabilistic impurity according to harmfulness of adulterants.Drug and alcohol dependence · 2020Article
- Lasting effects of repeated ∆British journal of pharmacology · 2020Article
- Synthetic cathinone self-administration in female rats modulates neurotransmitter levels in addiction-related brain regions.Behavioural brain research · 2019Article
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
The intravenous self-administration (IVSA) of 3,4-methylenedioxymethamphetamine (MDMA) is inconsistent in rats, with up to half of subjects failing to acquire reliable drug intake. It is unknown if this changes under long-access conditions (6 h sessions) under which the IVSA of cocaine and methamphetamine escalates. The entactogen class cathinone stimulants which exhibit MDMA-like monoamine effects in the nucleus accumbens, mephedrone (4-methylmethcathinone) and methylone (3,4-methylenedioxymethcathinone), may support more reliable IVSA but results have been mixed. This study was designed to directly compare the IVSA of these three compounds. Groups of male Wistar rats were trained to self-administer mephedrone, methylone or MDMA (0.5 mg/kg/inf) under a Fixed-Ratio (FR) 1 schedule of reinforcement for 14 sessions. Following the acquisition interval, animals were evaluated in FR (0.0, 0.125, 0.25, 0.5, 1.0, 2.5 mg/kg/inf) and Progressive Ratio (PR; 0.125, 1.0 mg/kg/inf) dose-substitution procedures. Long access conditions escalated MDMA intake over the 6 h session but not in the first 2 h. In short access, drug intake was significantly higher in mephedrone-trained rats compared with either the methylone-trained or MDMA-trained groups during acquisition. Mephedrone resulted in the highest intakes during FR and PR dose-substitution in MDMA- and mephedrone-trained groups. Overall it was found that mephedrone is a more effective reinforcer than methylone or MDMA and represents a higher risk for compulsive use.
Indexed as
Identifiers
What OpenQuestion holds
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.