Evidence map›Paper›PMID 23905844›Full record

ArticleAlcoholism, clinical and experimental research2014

Deletion of Prkcz increases intermittent ethanol consumption in mice.

Anna M Lee, Mimi E Zou, Jana P Lim, Jackie Stecher, Thomas McMahon, Robert O Messing

Open access · greenAbstract read
In one paragraph

Article in Alcoholism, clinical and experimental research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
1.0field-weighted citation impact, top 28% 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

20 citing papers in PubMed, 26 citations in OpenAlex.

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  11. Review
  12. Killing the Buζζ: accumbal PKMζ blunts cocaine seeking and reward.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2019
    Article
  13. PKMζ in the nucleus accumbens acts to dampen cocaine seeking.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018
    Article
  14. Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Article
  20. Genes and Alcohol Consumption: Studies with Mutant Mice.International review of neurobiology · 2016
    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

6 authors at 1 institution in 1 country.

Anna M LeeDepartment of Neurology, Ernest Gallo Clinic & Research Center, University of California at San Francisco, Emeryville, California.
Mimi E Zou
Jana P Lim
Jackie Stecher
Thomas McMahon
Robert O Messing
Ernest Gallo Clinic and Research Center · US

Funding

MEDICAL SCIENTIST TRAINING PROGRAMT32GM007618 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI ANDERSON, MARK S · 1985 to 2020
$29.6M
Vector, Transgenic, and Imaging CoreP50AA017072 · NIAAA · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI RON, DORIT · 2008 to 2017
$13.9M
CIHRNIAAA NIH HHS AA017072NIAAA NIH HHS P50 AA017072NIGMS NIH HHS T32 GM007618
6 · The paper itself

Abstract

backgroundPrkcz has been identified as a gene whose expression is positively correlated with ethanol (EtOH) consumption in mice and is also induced by EtOH. Two proteins are produced from Prkcz: protein kinase M zeta (PKMζ), which is expressed in the nervous system and protein kinase C zeta (PKCζ), which is expressed in other tissues. We examined Prkcz(-/-) mice that lack PKCζ and PKMζ to investigate the role of this gene in behavioral responses to EtOH.

methodsMale Prkcz(-/-) and wild-type littermates were tested for EtOH consumption using 4 procedures: 24-hour intermittent access, 4-hour limited intermittent access, 4-day drinking-in-the-dark, and 24-hour continuous access. We also assessed the acute hypnotic effect of EtOH, EtOH reward, and taste preference for sweet-, bitter-, salty-, and umami-flavored solutions. Finally, we determined whether EtOH could increase PKMζ and PKCζ transcripts and protein expression in wild-type mice using quantitative PCR and Western blot analysis.

resultsPrkcz(-/-) mice consumed more EtOH than their wild-type littermates in both intermittent access procedures, but not in the drinking-in-the-dark or 24-hour continuous access procedures. EtOH exposure increased Prkcz transcripts in cultured PC12 cells, and intermittent EtOH consumption increased PKMζ protein in the ventral striatum of wild-type mice.

conclusionsAbsence of PKMζ in the brain is associated with increased EtOH intake during procedures that incorporate intermittent consumption sessions every other day. Our data suggest that EtOH induces PKMζ, which acts in a negative feedback loop to limit binge-like EtOH consumption.

Indexed as

Gene DeletionAlcohol DrinkingAnimalsDown-RegulationEthanolMaleMiceMice, 129 StrainMice, Inbred C57BLMice, KnockoutMice, TransgenicPC12 CellsProtein Kinase CProtein Kinase C zetaRatsUp-RegulationEthanolProtein Kinase CProtein Kinase C zetaAlcohol ConsumptionKnockout MiceProtein Kinase C ZetaProtein Kinase M ZetaRewardVentral Striatum

Identifiers

PMID23905844
PMCPMC4002763
OpenAlexW2145280661

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.