Evidence map›Paper›PMID 16899053›Full record

ArticleGenes, brain, and behavior2007

Increased response to morphine in mice lacking protein kinase C epsilon.

P M Newton, J A Kim, A J McGeehan, J P Paredes, K Chu, M J Wallace, A J Roberts, C W Hodge, R O Messing

Open access · bronzeAbstract read
In one paragraph

Article in Genes, brain, and behavior, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
1.9field-weighted citation impact, top 16% 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

25 citing papers in PubMed, 41 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
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  5. Article
  6. Article
  7. Review
  8. Review
  9. Do initial responses to drugs predict future use or abuse?Neuroscience and biobehavioral reviews · 2012
    Review
  10. Article
  11. Article
  12. Striatal signal transduction and drug addiction.Frontiers in neuroanatomy · 2011
    Article
  13. Review
  14. Article
  15. Article
  16. Shared mechanisms for opioid tolerance and a transition to chronic pain.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2010
    Article
  17. Article
  18. Article
  19. Article
  20. PKCepsilon regulates behavioral sensitivity, binding and tolerance to the CB1 receptor agonist WIN55,212-2.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2009
    Article
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 4 institutions in 1 country.

P M NewtonErnest Gallo Clinic and Research Center, Department of Neurology, University of California, San Francisco, Emeryville, CA, USA.
J A Kim
A J McGeehan
J P Paredes
K Chu
M J Wallace
A J Roberts
C W Hodge
R O Messing
University of California, San Francisco · USErnest Gallo Clinic and Research Center · USScripps Research Institute · USUniversity of North Carolina at Chapel Hill · US

Funding

UNC ARC Information/Dissemination CoreP60AA011605 · NIAAA · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Joyce Besheer · 2003 to 2026
$46.3M
Regulation of GABAA Receptors by PKC epsilon.R37AA013588 · NIAAA · ERNEST GALLO CLINIC AND RESEARCH CENTER · PI MESSING, ROBERT O. · 2003 to 2011
$3.7M
Molecular Mechanisms of Ethanol Reinforcement R37AA014983 · NIAAA · UNIV OF NORTH CAROLINA CHAPEL HILL · PI HODGE, CLYDE W · 2013 to 2020
$2.7M
Molecular Mechanisms of Ethanol ReinforcementR01AA014983 · NIAAA · UNIV OF NORTH CAROLINA CHAPEL HILL · PI HODGE, CLYDE W · 2005 to 2012
$2.0M
Regulation of GABAA Receptors by PKC epsilon.R01AA013588 · NIAAA · UNIVERSITY OF TEXAS AT AUSTIN · PI MESSING, ROBERT O. · 2002 to 2016
$1.9M
NIAAA NIH HHS AA013588NIAAA NIH HHS AA014983NIAAA NIH HHS P60 AA011605NIAAA NIH HHS R01 AA013588NIAAA NIH HHS R01 AA014983NIAAA NIH HHS R37 AA013588NIAAA NIH HHS R37 AA014983
6 · The paper itself

Abstract

The protein kinase C (PKC) family of serine-threonine kinases has been implicated in behavioral responses to opiates, but little is known about the individual PKC isozymes involved. Here, we show that mice lacking PKCepsilon have increased sensitivity to the rewarding effects of morphine, revealed as the expression of place preference and intravenous self-administration at very low doses of morphine that do not evoke place preference or self-administration in wild-type mice. The PKCepsilon null mice also show prolonged maintenance of morphine place preference in response to repeated testing when compared with wild-type mice. The supraspinal analgesic effects of morphine are enhanced in PKCepsilon null mice, and the development of tolerance to the spinal analgesic effects of morphine is delayed. The density of mu-opioid receptors and their coupling to G-proteins are normal. These studies identify PKCepsilon as a key regulator of opiate sensitivity in mice.

Indexed as

AnimalsAssociation LearningBehavior, AnimalConditioning, ClassicalMiceMice, KnockoutMorphineNarcoticsProtein Kinase C-epsilonRandom AllocationReceptors, Opioid, muRewardSelf AdministrationTime FactorsMorphineNarcoticsProtein Kinase C-epsilonReceptors, Opioid, mu

Identifiers

PMID16899053
PMCPMC4264050
OpenAlexW2066602602

What OpenQuestion holds

Textmetadata
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.