ArticleAddiction biology2013
Alcohol drinking and deprivation alter basal extracellular glutamate concentrations and clearance in the mesolimbic system of alcohol-preferring (P) rats.
Article in Addiction biology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 62 papers.
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Who cites it
62 citing papers in PubMed, 86 citations in OpenAlex.
- Ethanol Alters the Neurexin Landscape in Human Neuroblastoma Cells.Alcohol, clinical & experimental research · 2026Article
- Glutamate transmission in the prelimbic cortex and nucleus accumbens shell is involved in ethanol reinforcement and drinking in rats.Frontiers in behavioral neuroscience · 2026Article
- Modulatory effects of GLT-1 enhancer, MC-100093, on glutamate uptake and associated signaling pathways in female and male alcohol preferring rats exposed to ethanol.The international journal of neuropsychopharmacology · 2025Article
- Acute alcohol in prefrontal cortex is characterized by enhanced inhibition that transitions to excitation.iScience · 2025Article
- Excitatory Amino Acid Transporters as Therapeutic Targets in the Treatment of Neurological Disorders: Their Roles and Therapeutic Prospects.Neurochemical research · 2025Review
- Role of Metabolism on Alcohol Preference, Addiction, and Treatment.Current topics in behavioral neurosciences · 2025Review
- Inhibitory and excitatory conditioned cues associated with alcohol differentially modulate the nucleus accumbens shell: involvement of 5-HTFrontiers in psychiatry · 2025Article
- Article
- Assessing the Efficacy of Fenugreek Saponin Nanoparticles in Attenuating Nicotine-Induced Hepatotoxicity in Male Rats.ACS omega · 2023Article
- A novel monobactam lacking antimicrobial activity, MC-100093, reduces sex-specific ethanol preference and depressive-like behaviors in mice.Neuropharmacology · 2023Article
- N-Acetylcysteine normalizes brain oxidative stress and neuroinflammation observed after protracted ethanol abstinence: a preclinical study in long-term ethanol-experienced male rats.Psychopharmacology · 2023Article
- Role of suppressing GLT-1 and xCT in ceftriaxone-induced attenuation of relapse-like alcohol drinking in alcohol-preferring rats.Addiction biology · 2022Article
- Neurobiological Bases of Alcohol Consumption After Social Stress.Current topics in behavioral neurosciences · 2022Article
- Ceftriaxone as a Novel Therapeutic Agent for Hyperglutamatergic States: Bridging the Gap Between Preclinical Results and Clinical Translation.Frontiers in neuroscience · 2022Review
- Effects of ceftriaxone on ethanol drinking and GLT-1 expression in ethanol dependence and relapse drinking.Alcohol (Fayetteville, N.Y.) · 2021Article
- Roles of dopamine and glutamate co-release in the nucleus accumbens in mediating the actions of drugs of abuse.The FEBS journal · 2021Review
- Effect of Modulation of the Astrocytic Glutamate Transporters' Expression on Cocaine-Induced Reinstatement in Male P Rats Exposed to Ethanol.Alcohol and alcoholism (Oxford, Oxfordshire) · 2021Article
- Systemic Administration of the AMPA Receptor Antagonist, NBQX, Reduces Alcohol Drinking in Male C57BL/6J, But Not Female C57BL/6J or High-Alcohol-Preferring, Mice.Alcoholism, clinical and experimental research · 2020Article
- Oxidative Stress and Neuroinflammation as a Pivot in Drug Abuse. A Focus on the Therapeutic Potential of Antioxidant and Anti-Inflammatory Agents and Biomolecules.Antioxidants (Basel, Switzerland) · 2020Review
- Behavioral, neurobiological, and neurochemical mechanisms of ethanol self-administration: A translational review.Pharmacology & therapeutics · 2020Review
2 more citing papers are in PubMed but not listed here.
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
Abstract
The present study determined the effects of voluntary ethanol drinking and deprivation on basal extracellular glutamate concentrations and clearance in the mesolimbic system and tested the hypothesis that chronic ethanol drinking would persistently increase basal glutamate neurotransmission. Three groups of alcohol-preferring (P) rats were used: 'water group (WG),' 'ethanol maintenance group (MG; 24-hour free choice water versus 15% ethanol)' and 'ethanol deprivation group (DG; 2 weeks of deprivation).' Quantitative microdialysis and Western blots were conducted to measure basal extracellular glutamate concentrations, clearance and proteins associated with glutamate clearance. Chronic alcohol drinking produced a 70-100% increase of basal extracellular glutamate concentrations in the posterior ventral tegmental area (4.0 versus 7.0 μM) and nucleus accumbens shell (3.0 versus 6.0 μM). Glutamate clearances were reduced by 30-40% in both regions of MG rats compared with WG rats. In addition, Western blots revealed a 40-45% decrease of excitatory amino transporter 1 (EAAT1) protein, but no significant changes in the levels of EAAT2 or cystine-glutamate antiporter in these regions of MG versus WG rats. The enhanced glutamate concentrations returned to control levels, accompanied by a recovery of glutamate clearance following deprivation. These results indicated that chronic alcohol drinking enhanced extracellular glutamate concentrations in the mesolimbic system, as a result, in part, of reduced clearance, suggesting that enhanced glutamate neurotransmission may contribute to the maintenance of alcohol drinking. However, because the increased glutamate levels returned to normal after deprivation, elevated glutamate neurotransmission may not contribute to the initiation of relapse drinking.
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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.