ArticleThe Journal of neuroscience : the official journal of the Society for Neuroscience2009
Binge drinking upregulates accumbens mGluR5-Homer2-PI3K signaling: functional implications for alcoholism.
Article in The Journal of neuroscience : the official journal of the Society for Neuroscience, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 115 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
115 citing papers in PubMed, 149 citations in OpenAlex.
- Cross-Sensitization between Binge Eating and Binge Drinking in a Novel C57BL/6NJ Murine Model of Disease Comorbidity Requires PDE4B Activation.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Article
- Synaptic Effects Induced by Alcohol.Current topics in behavioral neurosciences · 2025Review
- Examination of age- and sex-related changes in protein expression within the hippocampus and prefrontal cortex during withdrawal from a subchronic history of binge-drinking in C57BL/6J mice.Frontiers in behavioral neuroscience · 2025Article
- Biochemical changes precede affective and cognitive anomalies in aging adult C57BL/6J mice with a prior history of adolescent alcohol binge-drinking.Addiction biology · 2024Article
- Altered Expression of Neuroplasticity-Related Genes in Alcohol Addiction and Treatment.International journal of molecular sciences · 2024Article
- Effects of chronodisruption and alcohol consumption on gene expression in reward-related brain areas in female rats.Frontiers in molecular neuroscience · 2024Article
- Alcohol-drinking during later life by C57BL/6J mice induces sex- and age-dependent changes in hippocampal and prefrontal cortex expression of glutamate receptors and neuropathology markers.Addiction neuroscience · 2023Article
- Alcohol Dependence Modulates Amygdalar mTORC2 and PKCε Expression in a Rodent Model.Nutrients · 2023Article
- Sex differences and hormonal regulation of metabotropic glutamate receptor synaptic plasticity.International review of neurobiology · 2023Review
- Alcohol Use Disorder: Neurobiology and Therapeutics.Biomedicines · 2022Review
- Alcohol-Drinking Under Limited-Access Procedures During Mature Adulthood Accelerates the Onset of Cognitive Impairment in Mice.Frontiers in behavioral neuroscience · 2022Article
- Negative allosteric modulation of metabotropic glutamate receptor 5 attenuates alcohol self-administration in baboons.Pharmacology, biochemistry, and behavior · 2021Article
- Selective Inhibition of PDE4B Reduces Binge Drinking in Two C57BL/6 Substrains.International journal of molecular sciences · 2021Article
- MPEP Lowers Binge Drinking in Male and Female C57BL/6 Mice: Relationship with mGlu5/Homer2/Erk2 Signaling.Alcoholism, clinical and experimental research · 2021Article
- IL-10 normalizes aberrant amygdala GABA transmission and reverses anxiety-like behavior and dependence-induced escalation of alcohol intake.Progress in neurobiology · 2021Article
- Ampicillin/Sulbactam Treatment Modulates NMDA Receptor NR2B Subunit and Attenuates Neuroinflammation and Alcohol Intake in Male High Alcohol Drinking Rats.Biomolecules · 2020Article
- Pharmacological inhibition of glycogen synthase kinase 3 increases operant alcohol self-administration in a manner associated with altered pGSK-3β, protein interacting with C kinase and GluA2 protein expression in the reward pathway of male C57BL/6J mice.Behavioural pharmacology · 2020Article
- Transgenic Analyses of Homer2 Function Within Nucleus Accumbens Subregions in the Regulation of Methamphetamine Reward and Reinforcement in Mice.Frontiers in psychiatry · 2020Article
- Allosteric modulation of metabotropic glutamate receptors in alcohol use disorder: Insights from preclinical investigations.Advances in pharmacology (San Diego, Calif.) · 2020Review
- PI3K activation within ventromedial prefrontal cortex regulates the expression of drug-seeking in two rodent species.Addiction biology · 2019Article
55 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
20 authors at 6 institutions in 4 countries.
Funding
Abstract
The glutamate receptor-associated protein Homer2 regulates alcohol-induced neuroplasticity within the nucleus accumbens (NAC), but the precise intracellular signaling cascades involved are not known. This study examined the role for NAC metabotropic glutamate receptor (mGluR)-Homer2-phosphatidylinositol 3-kinase (PI3K) signaling in regulating excessive alcohol consumption within the context of the scheduled high alcohol consumption (SHAC) model of binge alcohol drinking. Repeated bouts of binge drinking ( approximately 1.5 g/kg per 30 min) elevated NAC Homer2a/b expression and increased PI3K activity in this region. Virus-mediated knockdown of NAC Homer2b expression attenuated alcohol intake, as did an intra-NAC infusion of the mGluR5 antagonist MPEP [2-methyl-6-(phenylethynyl)pyridine hydrochloride] (0.1-1 microg/side) and the PI3K antagonist wortmannin (50 ng/side), supporting necessary roles for mGluR5/Homer2/PI3K in binge alcohol drinking. Moreover, when compared with wild-type littermates, transgenic mice with an F1128R point mutation in mGluR5 that markedly reduces Homer binding exhibited a 50% reduction in binge alcohol drinking, which was related to reduced NAC basal PI3K activity. Consistent with the hypothesis that mGluR5-Homer-PI3K signaling may be a mechanism governing excessive alcohol intake, the "anti-binge" effects of MPEP and wortmannin were not additive, nor were they observed in the mGluR5(F1128R) transgenic mice. Finally, mice genetically selected for a high versus low SHAC phenotype differed in NAC mGluR, Homer2, and PI3K activity, consistent with the hypothesis that augmented NAC mGluR5-Homer2-PI3K signaling predisposes a high binge alcohol-drinking phenotype. Together, these data point to an important role for NAC mGluR5-Homer2-PI3K signaling in regulating binge-like alcohol consumption that has relevance for our understanding of the neurobiology of alcoholism and its pharmacotherapy.
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.