ArticleAlcohol (Fayetteville, N.Y.)2015
Activation of mGluR2/3 following stress hormone exposure restores sensitivity to alcohol in rats.
Article in Alcohol (Fayetteville, N.Y.), 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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.
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Who cites it
14 citing papers in PubMed, 19 citations in OpenAlex.
- Ethanol Self-Administration Reduces mGlu2/3 Protein Expression in the Nucleus Accumbens and mGlu2/3 Activation Suppresses Binge Drinking in Male Mice.Alcohol, clinical & experimental research · 2026Article
- Neural Circuitries and Alcohol Use Disorder: Cutting Corners in the Cycle.Current topics in behavioral neurosciences · 2025Review
- mGluPharmacology, biochemistry, and behavior · 2024Article
- Predator odor (TMT) exposure potentiates interoceptive sensitivity to alcohol and increases GABAergic gene expression in the anterior insular cortex and nucleus accumbens in male rats.Alcohol (Fayetteville, N.Y.) · 2022Article
- Advances in translating mGluPharmacology, biochemistry, and behavior · 2022Review
- Interoception and alcohol: Mechanisms, networks, and implications.Neuropharmacology · 2021Review
- The synthetically produced predator odor 2,5-dihydro-2,4,5-trimethylthiazoline increases alcohol self-administration and alters basolateral amygdala response to alcohol in rats.Psychopharmacology · 2021Article
- The Toll-Like Receptor 3 Agonist Poly(I:C) Induces Rapid and Lasting Changes in Gene Expression Related to Glutamatergic Function and Increases Ethanol Self-Administration in Rats.Alcoholism, clinical and experimental research · 2019Article
- Metabotropic Glutamate Receptors in Alcohol Use Disorder: Physiology, Plasticity, and Promising Pharmacotherapies.ACS chemical neuroscience · 2018Article
- Metabotropic and ionotropic glutamate receptors as potential targets for the treatment of alcohol use disorder.Neuroscience and biobehavioral reviews · 2017Review
- Glutamate plasticity woven through the progression to alcohol use disorder: a multi-circuit perspective.F1000Research · 2017Review
- Modulation of sensitivity to alcohol by cortical and thalamic brain regions.The European journal of neuroscience · 2016Article
- The nicotine + alcohol interoceptive drug state: contribution of the components and effects of varenicline in rats.Psychopharmacology · 2016Article
- Gabapentin potentiates sensitivity to the interoceptive effects of alcohol and increases alcohol self-administration in rats.Neuropharmacology · 2016Article
Corrections and comments
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Authors and funding
5 authors at 1 institution in 1 country.
Funding
Abstract
Sensitivity to the interoceptive effects of alcohol is blunted following a period of exposure to the stress hormone corticosterone (CORT), an effect that is suggested to be related, in part, to glutamatergic neuroadaptations. Group II metabotropic glutamate receptors (subtypes 2 and 3; mGluR2/3) modulate several drug- and alcohol-related behaviors, including the interoceptive (discriminative stimulus) effects of alcohol. Therefore, we sought to determine if manipulation of mGluR2/3 would restore sensitivity to the interoceptive effects of alcohol following CORT exposure. Using a two-lever drug discrimination task, male Long-Evans rats were trained to discriminate alcohol (1 g/kg, intragastric [IG]) vs. water. First, the effect of mGluR2/3 antagonism on the discriminative stimulus effects of alcohol was determined using LY341495 (0.3-3.0 mg/kg; intraperitoneal [IP]). Next, the effects of mGluR2/3 antagonism and activation were assessed in discrimination-trained animals exposed to CORT (300 μg/mL) in the home cage drinking water or water only, for 7 days. Following CORT exposure, decreased sensitivity to alcohol (1 g/kg) was observed. Pretreatment with the mGluR2/3 agonist LY379268 (1.0-3.0 mg/kg; IP), but not the mGluR2/3 antagonist (0.3-1.0 mg/kg; IP), restored sensitivity to alcohol. Additionally, in water controls, mGluR2/3 antagonism and mGluR2/3 activation disrupted expression of the discriminative stimulus effects of alcohol. Together, these findings suggest that blunted sensitivity to the interoceptive effects of alcohol following an episode of heightened stress hormone levels may be due to adaptations in mGluR2/3-related systems. The ability of mGluR2/3 activation to restore sensitivity to alcohol under these conditions lends further support for the importance of these receptors under stress-related conditions.
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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.