Evidence map›Paper›PMID 23800967›Full record

ArticleNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2013

β-endorphin via the delta opioid receptor is a major factor in the incubation of cocaine craving.

Yahav Dikshtein, Royi Barnea, Noam Kronfeld, Elad Lax, Ilana Roth-Deri, Alexander Friedman, Iris Gispan, Einat Elharrar, Sarit Levy, Moshe Ben-Tzion and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
1.7field-weighted citation impact, top 18% 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

23 citing papers in PubMed, 32 citations in OpenAlex.

  1. Trial
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  7. Review
  8. Article
  9. Article
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  11. Article
  12. Article
  13. Article
  14. Review
  15. Molecular Pharmacology of δ-Opioid Receptors.Pharmacological reviews · 2016
    Review
  16. Review
  17. Article
  18. The Nociceptin Receptor as an Emerging Molecular Target for Cocaine Addiction.Progress in molecular biology and translational science · 2016
    Review
  19. The opioid receptors as targets for drug abuse medication.British journal of pharmacology · 2015
    Review
  20. Role of DNA methylation in the nucleus accumbens in incubation of cocaine craving.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2015
    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

11 authors at 1 institution in 1 country.

Yahav DikshteinNeuropsychopharmacology Laboratory, The Mina and Everard Goodman Faculty of Life Sciences and The Leslie and Susan Gonda (Goldschmied) Multidisciplinary Brain Research Center, Bar Ilan University, Ramat Gan, Israel.
Royi Barnea
Noam Kronfeld
Elad Lax
Ilana Roth-Deri
Alexander Friedman
Iris Gispan
Einat Elharrar
Sarit Levy
Moshe Ben-Tzion
Gal Yadid
Bar-Ilan University · IL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cue-induced cocaine craving intensifies, or 'incubates', during the first few weeks of abstinence and persists over extended periods of time. One important factor implicated in cocaine addiction is the endogenous opioid β-endorphin. In the present study, we examined the possible involvement of β-endorphin in the incubation of cocaine craving. Rats were trained to self-administer cocaine (0.75 mg/kg, 10 days, 6 h/day), followed by either a 1-day or a 30-day period of forced abstinence. Subsequent testing for cue-induced cocaine-seeking behavior (without cocaine reinforcement) was performed. Rats exposed to the drug-associated cue on day 1 of forced abstinence demonstrated minimal cue-induced cocaine-seeking behavior concurrently with a significant increase in β-endorphin release in the nucleus accumbens (NAc). Conversely, exposure to the cue on day 30 increased cocaine seeking, while β-endorphin levels remained unchanged. Intra-NAc infusion of an anti-β-endorphin antibody (4 μg) on day 1 increased cue-induced cocaine seeking, whereas infusion of a synthetic β-endorphin peptide (100 ng) on day 30 significantly decreased cue response. Both intra-NAc infusions of the δ opioid receptor antagonist naltrindole (1 μg) on day 1 and naltrindole together with β-endorphin on day 30 increased cue-induced cocaine-seeking behavior. Intra-NAc infusion of the μ opioid receptor antagonist CTAP (30 ng and 3 μg) had no behavioral effect. Altogether, these results demonstrate a novel role for β-endorphin and the δ opioid receptor in the development of the incubation of cocaine craving.

Indexed as

Drug-Seeking BehaviorAnimalsbeta-EndorphinCocaineCocaine-Related DisordersCuesMaleNucleus AccumbensRatsRats, Sprague-DawleyReceptors, Opioid, deltaSelf Administrationbeta-EndorphinCocaineReceptors, Opioid, delta

Identifiers

PMID23800967
PMCPMC3799071
OpenAlexW2042902558

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.