Evidence map›Paper›PMID 27616012›Full record

ArticleNeuropharmacology2016

One month of cocaine abstinence potentiates rapid dopamine signaling in the nucleus accumbens core.

Courtney M Cameron, R Mark Wightman, Regina M Carelli

Abstract read
In one paragraph

Article in Neuropharmacology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Electrochemistry at the Synapse.Annual review of analytical chemistry (Palo Alto, Calif.) · 2019
    Review
  6. Article
  7. Previous cocaine self-administration disrupts reward expectancy encoding in ventral striatum.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2018
    Article
  8. Review
  9. Review
  10. Article
  11. 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

3 authors.

Courtney M CameronDepartment of Psychology and Neuroscience, The University of North Carolina, Chapel Hill, NC, USA.
R Mark WightmanDepartment of Chemistry, The University of North Carolina, Chapel Hill, NC, USA.
Regina M CarelliDepartment of Psychology and Neuroscience, The University of North Carolina, Chapel Hill, NC, USA. Electronic address: rcarelli@unc.edu.

Funding

Training on Research in Drug AbuseT32DA007244 · NIDA · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Regina M Carelli · 1990 to 2026
$7.6M
Neurophysiological Study: Cocaine &Natural ReinforcersR01DA014339 · NIDA · UNIV OF NORTH CAROLINA CHAPEL HILL · PI CARELLI, REGINA M · 2001 to 2018
$4.5M
Combined Voltammetry/Electrophysiology in Behaving RatsR01DA017318 · NIDA · UNIV OF NORTH CAROLINA CHAPEL HILL · PI CARELLI, REGINA M · 2004 to 2013
$3.4M
The Role of Accumbens Rapid Dopamine Signaling in Sucrose and Cocaine SeekingF31DA029978 · NIDA · UNIV OF NORTH CAROLINA CHAPEL HILL · PI CAMERON, COURTNEY MARIE · 2010 to 2012
$90k
NIDA NIH HHS F31 DA029978NIDA NIH HHS R01 DA014339NIDA NIH HHS R01 DA017318NIDA NIH HHS T32 DA007244
6 · The paper itself

Abstract

Cocaine addiction is a chronic relapsing disorder that is difficult to treat in part because addicts relapse even after extended periods of abstinence. Given the importance of the mesolimbic dopamine (DA) system in drug addiction, we sought to characterize cocaine abstinence induced changes in rapid DA signaling in the nucleus accumbens (NAc). Here, rats were trained to self-administer cocaine for 14 consecutive days, then divided into two groups. Day 1 rats (D1; n = 7) underwent 24 h of abstinence; Day 30 rats (D30; n = 7) underwent one month of abstinence. After abstinence, all rats underwent a single extinction session. Immediately after, rats were deeply anesthetized and fast scan cyclic voltammetry (FSCV) was used to measure DA release and uptake dynamics in the NAc core before and following a single cocaine injection. We show that one month of cocaine abstinence potentiates the peak concentration of electrically evoked DA in the NAc core following an acute injection of cocaine. This potentiation is not related to alterations in DA uptake parameters, which are unchanged following abstinence, but may reflect alterations in release. These results further support the abundance of literature showing that cocaine abstinence induces neuroplasticity in brain areas implicated in drug reward and relapse. The present findings also demonstrate critical differences between abstinence-induced neuroadaptations in DA signaling and those caused by drug exposure itself.

Indexed as

AnimalsCocaineCocaine-Related DisordersDopamineExtinction, PsychologicalMaleNucleus AccumbensRatsRats, Sprague-DawleySelf AdministrationCocaineDopamineAddictionCocaineDopamineFast-scan cyclic voltammetryRatSelf-administration

Identifiers

PMID27616012
PMCPMC5066595

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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.