ArticlePloS one2012
Mephedrone in adolescent rats: residual memory impairment and acute but not lasting 5-HT depletion.
Article in PloS one, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers.
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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.
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Who cites it
30 citing papers in PubMed, 62 citations in OpenAlex.
- Untangling Mephedrone-Induced Social Reward in Rats-The Involvement of Oxytocin and Vasopressin VGenes, brain, and behavior · 2026Article
- Cell-Specific Vulnerability of Human Glioblastoma and Astrocytoma Cells to Mephedrone-An In Vitro Study.Molecules (Basel, Switzerland) · 2025Article
- MDPV (3,4-methylenedioxypyrovalerone) administered to mice during development of the central nervous system produces persistent learning and memory impairments.Pharmacological reports : PR · 2024Article
- Central Effects of the Designer Drug Mephedrone in Mice-Basic Studies.Brain sciences · 2022Article
- Sex differences in inflammatory cytokine levels following synthetic cathinone self-administration in rats.Neurotoxicology · 2022Article
- Insight into Glutamatergic Involvement in Rewarding Effects of Mephedrone in Rats: In Vivo and Ex Vivo Study.Molecular neurobiology · 2021Article
- An updated review on synthetic cathinones.Archives of toxicology · 2021Review
- Psychoactive Drugs-From Chemical Structure to Oxidative Stress Related to Dopaminergic Neurotransmission. A Review.Antioxidants (Basel, Switzerland) · 2021Review
- Methylenedioxypyrovalerone (MDPV) impairs working memory and alters patterns of dopamine signaling in mesocorticolimbic substrates.Neuroscience research · 2020Article
- Abuse potential and toxicity of the synthetic cathinones (i.e., "Bath salts").Neuroscience and biobehavioral reviews · 2020Review
- Is the 3,4-methylendioxypyrovalerone/mephedrone combination responsible for enhanced stimulant effects? A rat study with investigation of the effect/concentration relationships.Psychopharmacology · 2019Article
- Cognitive deficits and neurotoxicity induced by synthetic cathinones: is there a role for neuroinflammation?Psychopharmacology · 2019Review
- Analysis of neurotransmitter levels in addiction-related brain regions during synthetic cathinone self-administration in male Sprague-Dawley rats.Psychopharmacology · 2019Article
- DARK Classics in Chemical Neuroscience: Cathinone-Derived Psychostimulants.ACS chemical neuroscience · 2018Review
- The Effects of Exposure to Mephedrone During Adolescence on Brain Neurotransmission and Neurotoxicity in Adult Rats.Neurotoxicity research · 2018Article
- Neurocognitive dysfunction following repeated binge-like self-administration of the synthetic cathinone 3,4-methylenedioxypyrovalerone (MDPV).Neuropharmacology · 2018Article
- Dissecting the Influence of Two Structural Substituents on the Differential Neurotoxic Effects of Acute Methamphetamine and Mephedrone Treatment on Dopamine Nerve Endings with the Use of 4-Methylmethamphetamine and Methcathinone.The Journal of pharmacology and experimental therapeutics · 2017Article
- Neurotoxicity Induced by Mephedrone: An up-to-date Review.Current neuropharmacology · 2017Review
- Phase I metabolites of mephedrone display biological activity as substrates at monoamine transporters.British journal of pharmacology · 2016Article
- Mephedrone and nicotine: oxidative stress and behavioral interactions in animal models.Neurochemical research · 2015Article
Corrections and comments
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Authors and funding
11 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Mephedrone (4-methylmethcathinone, MMC) is a popular recreational drug, yet its potential harms are yet to be fully established. The current study examined the impact of single or repeated MMC exposure on various neurochemical and behavioral measures in rats. In Experiment 1 male adolescent Wistar rats received single or repeated (once a day for 10 days) injections of MMC (30 mg/kg) or the comparator drug methamphetamine (METH, 2.5 mg/kg). Both MMC and METH caused robust hyperactivity in the 1 h following injection although this effect did not tend to sensitize with repeated treatment. Striatal dopamine (DA) levels were increased 1 h following either METH or MMC while striatal and hippocampal serotonin (5-HT) levels were decreased 1 h following MMC but not METH. MMC caused greater increases in 5-HT metabolism and greater reductions in DA metabolism in rats that had been previously exposed to MMC. Autoradiographic analysis showed no signs of neuroinflammation ([(125)I]CLINDE ligand used as a marker for translocator protein (TSPO) expression) with repeated exposure to either MMC or METH. In Experiment 2, rats received repeated MMC (7.5, 15 or 30 mg/kg once a day for 10 days) and were examined for residual behavioral effects following treatment. Repeated high (30 mg/kg) dose MMC produced impaired novel object recognition 5 weeks after drug treatment. However, no residual changes in 5-HT or DA tissue levels were observed at 7 weeks post-treatment. Overall these results show that MMC causes acute but not lasting changes in DA and 5-HT tissue concentrations. MMC can also cause long-term memory impairment. Future studies of cognitive function in MMC users are clearly warranted.
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Registered trials
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