Evidence map›Paper›PMID 21833504›Full record

ArticlePsychopharmacology2012

Protracted manifestations of acute dependence after a single morphine exposure.

Patrick E Rothwell, Mark J Thomas, Jonathan C Gewirtz

Abstract read
In one paragraph

Article in Psychopharmacology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.5field-weighted citation impact, top 44% 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

14 citing papers in PubMed, 19 citations in OpenAlex.

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  10. Motivational Processes Underlying Substance Abuse Disorder.Current topics in behavioral neurosciences · 2016
    Review
  11. Review
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  13. Rimonabant precipitates anxiety in rats withdrawn from palatable food: role of the central amygdala.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2013
    Article
  14. 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 at 2 institutions in 1 country.

Patrick E RothwellDepartment of Neuroscience, University of Minnesota, 321 Church St SE, Minneapolis, MN 55455, USA.
Mark J Thomas
Jonathan C Gewirtz
University of Minnesota · USStanford University · US

Funding

NEUROSCIENCE TRAINING IN DRUG ABUSE RESEARCHT32DA007234 · NIDA · UNIVERSITY OF MINNESOTA TWIN CITIES · PI Paul G Mermelstein, Jocelyn M Richard · 1986 to 2026
$10.9M
PREDOCTORAL TRAINING OF NEUROSCIENTISTST32GM008471 · NIGMS · UNIVERSITY OF MINNESOTA TWIN CITIES · PI EBNER, TIMOTHY J · 1993 to 2017
$4.9M
Neural Substrates of Anxiety in Acute Opiate DependenceR03DA018784 · NIDA · UNIVERSITY OF MINNESOTA · PI GEWIRTZ, JONATHAN · 2006 to 2007
$142k
Conditioned Cocaine Reward and Nucleus Accumbens Synaptic PlasticityF31DA023750 · NIDA · UNIVERSITY OF MINNESOTA · PI ROTHWELL, PATRICK · 2008 to 2009
$51k
NIDA NIH HHS DA018784NIDA NIH HHS DA023750NIDA NIH HHS F31 DA023750NIDA NIH HHS R03 DA018784NIDA NIH HHS T32 DA007234NIGMS NIH HHS T32 GM008471
6 · The paper itself

Abstract

rationaleAcute opiate exposure produces a state of dependence in humans and animals, which is revealed by signs and symptoms of withdrawal precipitated by opioid receptor antagonists. The physiological changes that underlie this state of acute dependence develop rapidly and can persist long after the end of chronic opiate exposure.

objectivesThe purpose of this investigation was to determine the persistence of acute dependence after a single morphine exposure in rodents, focusing on changes in behavior thought to reflect the negative emotional consequences of withdrawal.

methodsThe acoustic startle reflex and conditioned place aversion were measured following naloxone administration at different time points after a single morphine exposure.

resultsNaloxone administration produced significant potentiation of acoustic startle-a form of anxiety-like behavior-for at least 80 days after one exposure to morphine. In contrast, naloxone produced a conditioned place aversion 24 h but not 20 days after one morphine exposure.

conclusionsTogether with existing literature, these results suggest acute as well as chronic opiate exposure leave rodents persistently vulnerable to express anxiety-like behavior in response to opioid receptor antagonists or stressful experience. The adaptations in brain function that underlie this protracted state of dependence may provide a foundation for the escalation of withdrawal severity that develops over repeated opiate exposure, and increase the likelihood of progression from casual drug use to compulsive drug abuse.

Indexed as

Analgesics, OpioidAnimalsAnxietyAvoidance LearningBehavior, AnimalDisease Models, AnimalMaleMorphineNaloxoneNarcotic AntagonistsOpioid-Related DisordersRatsRats, Sprague-DawleyReflex, StartleSubstance Withdrawal SyndromeTime FactorsAnalgesics, OpioidMorphineNaloxoneNarcotic Antagonists

Identifiers

PMID21833504
PMCPMC3978778
OpenAlexW1965790498

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.