Evidence map›Paper›PMID 33434325›Full record

ArticleAlcoholism, clinical and experimental research2021

Increased Synaptic Strength and mGlu

Max E Joffe, Danny G Winder, P Jeffrey Conn

Open access · greenAbstract read
In one paragraph

Article in Alcoholism, clinical and experimental research, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.0field-weighted citation impact, top 15% of its field
1 · What the graph read from it

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

17 citing papers in PubMed, 24 citations in OpenAlex.

  1. Article
  2. Article
  3. mGlu2 Receptors in the Basal Ganglia: A New Frontier in Addiction Therapy.Frontiers in bioscience (Landmark edition) · 2025
    Review
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Advances in translating mGluPharmacology, biochemistry, and behavior · 2022
    Review
  12. Article
  13. Article
  14. Article
  15. Review
  16. Somatostatin neurons control an alcohol binge drinking prelimbic microcircuit in mice.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2021
    Article
  17. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors at 1 institution in 1 country.

Max E JoffeDepartment of Pharmacology, Vanderbilt University, Nashville, TN, USA.ORCID 0000-0002-6748-886X
Danny G WinderDepartment of Pharmacology, Vanderbilt University, Nashville, TN, USA.ORCID 0000-0002-6185-4769
P Jeffrey ConnDepartment of Pharmacology, Vanderbilt University, Nashville, TN, USA.
Vanderbilt University · US

Funding

REGULATION OF SIGNALING BY MGLUR5R01MH062646 · NIMH · VANDERBILT UNIVERSITY · PI P Jeffrey Conn, COLLEEN M NISWENDER · 2001 to 2026
$10.9M
Overall: Eunice Kennedy Shriver Intellectual and Developmental Disabilities Research Center at VanderbiltP50HD103537 · NICHD · VANDERBILT UNIVERSITY MEDICAL CENTER · PI Lea K Davis · 2020 to 2026
$10.3M
FUNCTIONS OF METABOTROPIC GLUTAMATE RECEPTOR SUBTYPESR01NS031373 · NINDS · VANDERBILT UNIVERSITY · PI CONN, P JEFFREY · 1993 to 2025
$6.2M
Functions of Metabotropic Glutamate Receptor SubtypesR37NS031373 · NINDS · VANDERBILT UNIVERSITY · PI CONN, P JEFFREY · 2014 to 2020
$3.5M
Sex differences in fast-spiking interneurons promote AUD-related PFC dysfunction: remediation by modulating mGlu1 and mGlu5K99AA027806 · NIAAA · VANDERBILT UNIVERSITY · PI JOFFE, MAX E · 2020 to 2021
$276k
NIAAA NIH HHS K99 AA027806NIMH NIH HHS R01 MH062646NINDS NIH HHS R01 NS031373NINDS NIH HHS R37 NS031373
6 · The paper itself

Abstract

backgroundThe medial prefrontal cortex (PFC) is crucial for regulating craving and alcohol seeking in alcohol use disorder (AUD) patients and alcohol seeking in animal models. Maladaptive changes in volitional ethanol (EtOH) intake have been associated with PFC function, yet synaptic adaptations within PFC have not been consistently detected in voluntary drinking rodent models. At least 80% of the neurons in PFC are glutamatergic pyramidal cells. Pyramidal cells provide the predominant cortical output to several brain regions relevant to AUD, including structures within the telencephalon (IT: e.g., basal ganglia, amygdala, other neocortical regions) and outside the telencephalon (ET: e.g., lateral hypothalamus, midbrain monoaminergic structures, thalamus).

methodsIn addition to their anatomical distinctions, studies from several laboratories have revealed that prefrontal cortical IT and ET pyramidal cells may be differentiated by specific electrophysiological parameters. These distinguishable parameters make it possible to readily classify pyramidal cells into separable subtypes. Here, we employed and validated the hyperpolarization sag ratio as a diagnostic proxy for separating ET (type A) and IT (type B) neurons. We recorded from deep-layer prelimbic PFC pyramidal cells of mice 1 day after 4 to 5 weeks of intermittent access (IA) EtOH exposure.

resultsMembrane properties were not altered by IA EtOH, but excitatory postsynaptic strength onto IT type B neurons was selectively enhanced in slices from IA EtOH mice. The increased excitatory drive was accompanied by enhanced mGlu

conclusionsTogether, these studies provide insight into the specific PFC neurocircuits altered by voluntary drinking. In addition, the findings provide an additional rationale for developing compounds that potentiate mGlu

Indexed as

AnimalsEthanolExcitatory Postsynaptic PotentialsFemaleMaleMiceMice, Inbred C57BLMice, TransgenicNeuronal PlasticityPrefrontal CortexPyramidal CellsReceptors, Metabotropic GlutamateSynapsesEthanolmetabotropic glutamate receptor 2metabotropic glutamate receptor 3Receptors, Metabotropic GlutamateBinge DrinkingmGlu ReceptorPrefrontal CortexSynaptic PhysiologySynaptic Plasticity

Identifiers

PMID33434325
PMCPMC7969423
OpenAlexW3118839169

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

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.