Cited by 18Neuroscience and Neuropharmacology ResearchNeurotransmitter Receptor Influence on BehaviorSubstance Abuse Treatment and Outcomes

Activation of extrasynaptic δ-GABAA receptors globally or within the posterior-VTA has estrous-dependent effects on consumption of alcohol and estrous-independent effects on locomotion

Open access
Melón, Laverne C., Nolan, Zachary T., Colar, Delphine, Moore, Eileen M., Boehm, Stephen L.·2017·Hormones and Behavior

Abstract

Recent reports support higher than expected rates of binge alcohol consumption among women and girls. Unfortunately, few studies have assessed the mechanisms underlying this pattern of intake in females. Studies in males suggest that alcohol concentrations relevant to the beginning stages of binge intoxication may selectively target tonic GABAergic inhibition mediated by GABA A receptor subtypes expressing the δ-subunit protein (δ-GABA A Rs). Indeed, administration of agonists that interact with these δ-GABA A Rs prior to alcohol access can abolish binge drinking behavior in male mice. These δ-GABA A Rs have also been shown to exhibit estrous-dependent plasticity in regions relevant to drug taking behavior, like the hippocampus and periaqueductal gray. The present experiments were designed to determine whether the estrous cycle would alter binge drinking, or our ability to modulate this pattern of alcohol use with THIP, an agonist with high selectivity and efficacy at δ-GABA A Rs. Using the Drinking-in-the-Dark (DID) binge-drinking model, regularly cycling female mice were given 2h of daily access to alcohol (20%v/v). Vaginal cytology or vaginal impedance was assessed after drinking sessions to track estrous status. There was no fluctuation in binge drinking associated with the estrous cycle. Both Intra-posterior-VTA administration of THIP and systemic administration of the drug was also associated with an estrous cycle dependent reduction in drinking behavior. Pre-treatment with finasteride to inhibit synthesis of 5α-reduced neurosteroids did not disrupt THIP's effects. Analysis of δ-subunit mRNA from posterior-VTA enriched tissue samples revealed that expression of this GABA A receptor subunit is elevated during diestrus in this region. Taken together, these studies demonstrate that δGABA A Rs in the VTA are an important target for binge drinking in females and confirm that the estrous cycle is an important moderator of the pharmacology of this GABA A receptor subtype.

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Integrity signals

Registry

Crossref · 10.1016/j.yhbeh.2017.07.015

Cites

91 of 91 references verified0 citation errors · 0 not checkable

Statistics

Claims the paper makes

The claims and statistics of this paper haven’t been checked yet.

Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.

A few free checks a day · papers already verified open instantly · results are public

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

  • δGABAARs in the VTA have been implicated in the consumption of ethanol, although only under specific circumstances.

    “δGABAARs in the VTA have also been implicated in the consumption of ethanol, although only under specific circumstances [114].”

    From An emerging circuit pharmacology of GABAA receptors (2018) · cites this paper as [114]

Self-check

Percentages, sums and reported differences re-computed from the paper’s own numbers.

The self-check needs the paper’s full text.

Cites

Flagged first, then by citations

Cited by

Sorted by citations

Authors
Melón, L. C., Nolan, Z. T., Colar, D., Moore, E. M., & Boehm, S. L.
Affiliations
  • Tufts University (US)
  • Pennsylvania State University (US)
  • Indiana University Indianapolis (US)
  • San Diego State University (US)
Corresponding author
Boehm, Stephen L.
Venue
Hormones and Behavior
Publisher
Elsevier BV
Published
2017-09
Volume
95
Pages
65-75
ISSN
0018-506X (ISSN-L)
OpenAlex
W2756440222
Cited by
18
References
91
Citations by year
2026: 1 · 2025: 2 · 2024: 1 · 2023: 3 · 2022: 2 · 2021: 4 · 2019: 2 · 2018: 2 · 2017: 1
FWCI
0.67
Type
journal article
Language
en
Open access
Locations
  • Hormones and Behavior (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
  • IUScholarWorks (Indiana University) (submittedVersion)
  • PMC
Funders
National Institutes of Health (AA016789, F31AA018910, T32 AA07462, K12GM074869)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Epidemiology › Substance Abuse Treatment and Outcomes
Keywords
estrous cycle, binge drinking, alcohol consumption, finasteride, diestrus, locomotion
MeSH terms
Alcohol Drinking, Ethanol, Animals, Female, Hippocampus, Isoxazoles, Locomotion, Male, Mice, Inbred C57BL, Periaqueductal Gray, Receptors, GABA-A, Synapses, Ventral Tegmental Area, Estrous Cycle, Mice, GABA-A Receptor Agonists, Binge Drinking

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review