Evidence map›Paper›PMID 23811073›Full record

ArticleNeuroscience2013

Long-term effects of cocaine experience on neuroplasticity in the nucleus accumbens core of addiction-prone rats.

M Waselus, S B Flagel, J P Jedynak, H Akil, T E Robinson, S J Watson

Abstract read
In one paragraph

Article in Neuroscience, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
–field-weighted citation impact
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

19 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Understanding Addiction Using Animal Models.Frontiers in behavioral neuroscience · 2019
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Repeated binge-like ethanol drinking alters ethanol drinking patterns and depresses striatal GABAergic transmission.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2014
    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

6 authors.

M WaselusMolecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, MI, USA. Electronic address: mwaselus@umich.edu.
S B FlagelMolecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, MI, USA; Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA; Neuroscience Program, University of Michigan, Ann Arbor, MI, USA; Department of Psychology, University of Michigan, Ann Arbor, MI, USA.
J P JedynakNeuroscience Program, University of Michigan, Ann Arbor, MI, USA.
H AkilMolecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, MI, USA; Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA; Neuroscience Program, University of Michigan, Ann Arbor, MI, USA.
T E RobinsonNeuroscience Program, University of Michigan, Ann Arbor, MI, USA; Department of Psychology, University of Michigan, Ann Arbor, MI, USA.
S J WatsonMolecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, MI, USA; Department of Psychiatry, University of Michigan, Ann Arbor, MI, USA; Neuroscience Program, University of Michigan, Ann Arbor, MI, USA.

Funding

FOREBRAIN OVEREXPRESSION OF A STRESS-RELATED GENEP01DA021633 · NIDA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI AKIL, HUDA · 2007 to 2011
$6.2M
NIDA Training Program in Neuroscience-Administrative SupplementT32DA007281 · NIDA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI Shelly Beth Flagel · 1995 to 2026
$5.7M
SUBSTANCE ABUSE INTERDISCIPLINARY TRAINING PROGRAMT32DA007267 · NIDA · UNIVERSITY OF MICHIGAN AT ANN ARBOR · PI GNEGY, MARGARET E · 1994 to 2015
$4.5M
NIDA NIH HHS 5P01DA021633-02NIDA NIH HHS P01 DA021633NIDA NIH HHS T32 DA007267NIDA NIH HHS T32-DA007267NIDA NIH HHS T32 DA007281
6 · The paper itself

Abstract

Repeated exposure to drugs of abuse is associated with structural plasticity in brain reward pathways. Rats selectively bred for locomotor response to novelty differ on a number of neurobehavioral dimensions relevant to addiction. This unique genetic animal model was used here to examine both pre-existing differences and long-term consequences of repeated cocaine treatment on structural plasticity. Selectively bred high-responder (bHR) and low-responder (bLR) rats received repeated saline or cocaine injections for 9 consecutive days. Escalating doses of cocaine (7.5, 15 and 30 mg/kg) were administered on the first (day 1) and last (day 9) days of treatment and a single injection of the intermediate dose (15 mg/kg) was given on days 2-8. Motor activity in response to escalating doses of cocaine was compared on the first and last days of treatment to assess the acute and sensitized response to the drug. Following prolonged cocaine abstinence (28 days), spine density was examined on terminal dendrites of medium spiny neurons in the nucleus accumbens core. Relative to bLRs, bHRs exhibited increased psychomotor activation in response to both the acute and repeated effects of cocaine. There were no differences in spine density between bHR and bLR rats under basal conditions or following repeated saline treatment. However, spine density differed markedly between these two lines following prolonged cocaine abstinence. All spine types were decreased in cocaine-treated bHRs, while only mushroom spines were decreased in bLRs that received cocaine. Changes in spine density occurred specifically near the branch point of terminal dendrites. These findings indicate that structural plasticity associated with prolonged cocaine abstinence varies markedly in two selected strains of rats that vary on numerous traits relevant to addiction. Thus, genetic factors that contribute to individual variation in the behavioral response to cocaine also influence cocaine-induced structural plasticity.

Indexed as

AnimalsBehavior, AddictiveBehavior, AnimalCocaineDendritic SpinesLocomotionMaleMotor ActivityNeuronal PlasticityNucleus AccumbensRatsRats, Sprague-DawleyTime FactorsCocaineaddictioncocainedendritesprolonged abstinencepsychomotor sensitizationspine density

Identifiers

PMID23811073
PMCPMC3859827

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.