ArticleNeuropharmacology2015
Nucleus accumbens shell excitability is decreased by methamphetamine self-administration and increased by 5-HT2C receptor inverse agonism and agonism.
Article in Neuropharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 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
19 citing papers in PubMed, 28 citations in OpenAlex.
- The 5-HTPharmacology research & perspectives · 2021Trial
- Striatal transcriptomic alterations immediately after short-term abstinence from methamphetamine self-administration in rats.Molecular brain · 2025Article
- Methamphetamine self-administration causes neuronal dysfunction in rat medial prefrontal cortex in a sex-specific and withdrawal time-dependent manner.Frontiers in pharmacology · 2025Article
- Matrix Metalloproteinase-9 Signaling Regulates Colon Barrier Integrity in Models of HIV Infection.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2024Article
- Isradipine, an L-type calcium channel inhibitor, attenuates cue-associated methamphetamine-seeking in mice.Brain research · 2023Article
- Article
- Acute and protracted abstinence from methamphetamine bidirectionally changes intrinsic excitability of indirect pathway spiny projection neurons in the dorsomedial striatum.Scientific reports · 2022Article
- Gut and brain profiles that resemble pre-motor and early-stage Parkinson's disease in methamphetamine self-administering rats.Drug and alcohol dependence · 2021Article
- Lateral Habenula 5-HTInternational journal of molecular sciences · 2021Article
- Hippocampal blood-brain barrier of methamphetamine self-administering HIV-1 transgenic rats.The European journal of neuroscience · 2021Article
- Cocaine engages a non-canonical, dopamine-independent, mechanism that controls neuronal excitability in the nucleus accumbens.Molecular psychiatry · 2020Article
- AMPA receptor and metabotropic glutamate receptor 1 adaptations in the nucleus accumbens core during incubation of methamphetamine craving.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2019Article
- The Sigma-1 Receptor: When Adaptive Regulation of Cell Electrical Activity Contributes to Stimulant Addiction and Cancer.Frontiers in neuroscience · 2019Review
- Methamphetamine decreases KJournal of neurochemistry · 2019Article
- Insulin regulates astrocyte gliotransmission and modulates behavior.The Journal of clinical investigation · 2018Article
- Self-administration of methamphetamine alters gut biomarkers of toxicity.The European journal of neuroscience · 2017Article
- Methamphetamine self-administration modulates glutamate neurophysiology.Brain structure & function · 2017Article
- The serotonin 5-HTJournal of psychopharmacology (Oxford, England) · 2017Review
- AMPA Receptor Plasticity in Accumbens Core Contributes to Incubation of Methamphetamine Craving.Biological psychiatry · 2016Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 2 institutions in 1 country.
Funding
Abstract
Methamphetamine profoundly increases brain monoamines and is a widely abused psychostimulant. The effects of methamphetamine self-administration on neuron function are not known for the nucleus accumbens, a brain region involved in addictive behaviors, including drug-seeking. One therapeutic target showing preclinical promise at attenuating psychostimulant-seeking is 5-HT2C receptors; however, the effects of 5-HT2C receptor ligands on neuronal physiology are unclear. 5-HT2C receptor agonism decreases psychostimulant-mediated behaviors, and the putative 5-HT2C receptor inverse agonist, SB 206553, attenuates methamphetamine-seeking in rats. To ascertain the effects of methamphetamine, and 5-HT2C receptor inverse agonism and agonism, on neuronal function in the nucleus accumbens, we evaluated methamphetamine, SB 206553, and the 5-HT2C receptor agonist and Ro 60-0175, on neuronal excitability within the accumbens shell subregion using whole-cell current-clamp recordings in forebrain slices ex vivo. We reveal that methamphetamine self-administration decreased generation of evoked action potentials. In contrast, SB 206553 and Ro 60-0175 increased evoked spiking, effects that were prevented by the 5-HT2C receptor antagonist, SB 242084. We also assessed signaling mechanisms engaged by 5-HT2C receptors, and determined that accumbal 5-HT2C receptors stimulated Gq, but not Gi/o. These findings demonstrate that methamphetamine-induced decreases in excitability of neurons within the nucleus accumbens shell were abrogated by both 5-HT2C inverse agonism and agonism, and this effect likely involved activation of Gq-mediated signaling pathways.
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.