Evidence map›Paper›PMID 22119954›Full record

ArticleNeuropharmacology2012

Development of mechanical hypersensitivity in rats during heroin and ethanol dependence: alleviation by CRF₁ receptor antagonism.

Scott Edwards, Leandro F Vendruscolo, Joel E Schlosburg, Kaushik K Misra, Sunmee Wee, Paula E Park, Gery Schulteis, George F Koob

Abstract read
In one paragraph

Article in Neuropharmacology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 110 papers.

0numbers the graph read from it
0cells of the map it votes in
110citing papers in PubMed
4.3field-weighted citation impact, top 5% 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

110 citing papers in PubMed, 162 citations in OpenAlex.

  1. Aversion-resistant alcohol seeking in the human laboratory.Alcohol, clinical & experimental research · 2025
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50 more citing papers are in PubMed but not listed here.

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

8 authors at 3 institutions in 1 country.

Scott EdwardsCommittee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA, USA. edwards@scripps.edu
Leandro F Vendruscolo
Joel E Schlosburg
Kaushik K Misra
Sunmee Wee
Paula E Park
Gery Schulteis
George F Koob
Pearson (United States) · USScripps Research Institute · USUniversity of California, San Diego · US

Funding

Viral Vector CoreP60AA006420 · NIAAA · SCRIPPS RESEARCH INSTITUTE, THE · PI Remi Martin-Fardon · 2003 to 2026
$46.3M
Medication Development for Protracted Abstinence in AlcoholismR01AA012602 · NIAAA · UNIVERSITY OF MIAMI SCHOOL OF MEDICINE · PI MASON, BARBARA J · 1999 to 2016
$10.5M
SYSTEMIC NEUROPHARMACOLOGYP50AA006420 · NIAAA · SCRIPPS RESEARCH INSTITUTE · PI KOOB, GEORGE F · 1985 to 2002
$5.1M
NEURONAL SUBSTRATES OF COCAINE REWARDR01DA004398 · NIDA · SCRIPPS RESEARCH INSTITUTE, THE · PI GEORGE, OLIVIER · 1987 to 2014
$4.9M
NEUROPHARMACOLOGY OF ETHANOL REINFORCEMENTR01AA008459 · NIAAA · SCRIPPS RESEARCH INSTITUTE, THE · PI GEORGE, OLIVIER · 1990 to 2013
$4.2M
CENTRAL MECHANISMS OF OPIATE REINFORCEMENT &DEPENDENCER01DA004043 · NIDA · SCRIPPS RESEARCH INSTITUTE, THE · PI KOOB, GEORGE F. · 1986 to 2008
$3.0M
NEUROPHARMACOLOGY OF ETHANOL REINFORCEMENTR37AA008459 · NIAAA · SCRIPPS RESEARCH INSTITUTE · PI KOOB, GEORGE F · 1993 to 2002
$788k
Intersection of Pain and Ethanol-Seeking Mechanisms in Ethanol DependenceR00AA020839 · NIAAA · LSU HEALTH SCIENCES CENTER · PI EDWARDS, SCOTT · 2014 to 2016
$739k
Role of Central Vasopressin/ERK Signaling in Ethanol DependenceF32AA018250 · NIAAA · SCRIPPS RESEARCH INSTITUTE, THE · PI EDWARDS, SCOTT · 2009 to 2011
$113k
NIAAA NIH HHS AA008459NIAAA NIH HHS AA018250NIAAA NIH HHS AA06420NIAAA NIH HHS AA12602NIAAA NIH HHS F32 AA018250NIAAA NIH HHS P50 AA006420NIAAA NIH HHS R00 AA020839NIAAA NIH HHS R01 AA008459NIAAA NIH HHS R01 AA012602NIAAA NIH HHS R37 AA008459NIDA NIH HHS DA04043NIDA NIH HHS DA04398NIDA NIH HHS R01 DA004043NIDA NIH HHS R01 DA004398
6 · The paper itself

Abstract

Animal models of drug dependence have described both reductions in brain reward processes and potentiation of stress-like (or anti-reward) mechanisms, including a recruitment of corticotropin-releasing factor (CRF) signaling. Accordingly, chronic exposure to opiates often leads to the development of mechanical hypersensitivity. We measured paw withdrawal thresholds (PWTs) in male Wistar rats allowed limited (short access group: ShA) or extended (long access group: LgA) access to heroin or cocaine self-administration, or in rats made dependent on ethanol via ethanol vapor exposure (ethanol-dependent group). In heroin self-administering animals, after transition to LgA conditions, thresholds were reduced to around 50% of levels observed at baseline, and were also significantly lower than thresholds measured in animals remaining on the ShA schedule. In contrast, thresholds in animals self-administering cocaine under either ShA (1 h) or LgA (6 h) conditions were unaltered. Similar to heroin LgA rats, ethanol-dependent rats also developed mechanical hypersensitivity after eight weeks of ethanol vapor exposure compared to non-dependent animals. Systemic administration of the CRF1R antagonist MPZP significantly alleviated the hypersensitivity observed in rats dependent on heroin or ethanol. The emergence of mechanical hypersensitivity with heroin and ethanol dependence may thus represent one critical drug-associated negative emotional state driving dependence on these substances. These results also suggest a recruitment of CRF-regulated nociceptive pathways associated with escalation of intake and dependence. A greater understanding of relationships between chronic drug exposure and pain-related states may provide insight into mechanisms underlying the transition to drug addiction, as well as reveal new treatment opportunities. This article is part of a Special Issue entitled 'Post-Traumatic Stress Disorder'.

Indexed as

AlcoholismAnimalsCocaineCocaine-Related DisordersCRF Receptor, Type 1HeroinHeroin DependenceHyperalgesiaMalePain PerceptionPain ThresholdPhysical StimulationPyrimidinesRatsRats, WistarReceptors, Corticotropin-Releasing HormoneCocaineCRF Receptor, Type 1HeroinN,N-bis(2-methoxyethyl)-3-(4-methoxy-2-methylphenyl)-2,5-dimethyl-pyrazolo(1,5-a)pyrimidin-7-aminePyrimidinesReceptors, Corticotropin-Releasing Hormone

Identifiers

PMID22119954
PMCPMC3262951
OpenAlexW2074010882

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.