Evidence map›Paper›PMID 19944084›Full record

ArticleBrain research2010

Intermittent high-dose ethanol exposures increase motivation for operant ethanol self-administration: possible neurochemical mechanism.

Zhimin Li, Alevtina Zharikova, Cheryl H Vaughan, Jaime Bastian, Shannon Zandy, Leonardo Esperon, Elyssia Axman, Neil E Rowland, Joanna Peris

Abstract read
In one paragraph

Article in Brain research, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
0.2field-weighted citation impact, top 50% 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

18 citing papers in PubMed, 29 citations in OpenAlex.

  1. Trial
  2. Observational
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  12. Peripheral oxytocin administration reduces ethanol consumption in rats.Pharmacology, biochemistry, and behavior · 2016
    Article
  13. Article
  14. Article
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  16. Article
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  18. Role of central nervous system insulin resistance in fetal alcohol spectrum disorders.Journal of population therapeutics and clinical pharmacology = Journal de la therapeutique des populations et de la pharmacologie clinique · 2010
    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

9 authors at 1 institution in 1 country.

Zhimin LiDepartment of Pharmacodynamics, Box 100487, University of Florida, Gainesville, FL 32610, USA.
Alevtina Zharikova
Cheryl H Vaughan
Jaime Bastian
Shannon Zandy
Leonardo Esperon
Elyssia Axman
Neil E Rowland
Joanna Peris
University of Florida · US

Funding

Time resolution of ethanol-induced neurotransmissionR01AA014708 · NIAAA · UNIVERSITY OF FLORIDA · PI PERIS, JOANNA · 2005 to 2007
$735k
NIAAA NIH HHS AA014708NIAAA NIH HHS R01 AA014708
6 · The paper itself

Abstract

We investigated the neurochemical mechanism of how high-dose ethanol exposure may increase motivation for ethanol consumption. First, we developed an animal model of increased motivation for ethanol using a progressive ratio (PR) schedule. Sprague-Dawley rats were trained to administer 10% ethanol-containing gelatin or plain gelatin (on alternate weeks) in daily 30-min sessions under different fixed ratio (FR) and PR schedules. During FR schedules, rats self-administered about 1 g/kg ethanol, which was decreased to 0.4+/-0.03 g/kg under PR10. Rats then received four pairs of either 3 g/kg ethanol or saline injections during the weeks when the reinforcer was plain gelatin. During subsequent ethanol gel sessions, breakpoints and ethanol consumption rose 40% in the high-dose ethanol group by the fourth set of injections with no change in plain gel responding. Alterations in amino acids in the ventral striatum (VS) during PR10 responding for 10% ethanol gelatin and plain gelatin were measured using microdialysis sampling coupled with capillary electrophoresis and laser-induced fluorescence detection. There was greater release of taurine, glycine and glutamate in the NAC of the high-dose ethanol rats during 10% ethanol-containing gelatin responding, compared to the control rats or during plain gel responding. An increase in the release of glycine in this same brain region has recently been shown to be involved with anticipation of a reward. Thus, it appears that intermittent high-dose ethanol exposure not only increases motivation for ethanol responding but may also change neurotransmitter release that mediates anticipation of reinforcement, which may play a key role in the development of alcoholism.

Indexed as

Analysis of VarianceAnimalsBrain ChemistryCentral Nervous System DepressantsConditioning, OperantDose-Response Relationship, DrugDrug Administration ScheduleEthanolFemaleGelatinMicrodialysisMotivationNeurotransmitter AgentsRatsRats, Sprague-DawleyReinforcement ScheduleCentral Nervous System DepressantsEthanolGelatinNeurotransmitter Agents

Identifiers

PMID19944084
PMCPMC2812672
OpenAlexW1997238445

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.