Evidence map›Paper›PMID 25273280›Full record

ArticleBrain structure & function2016

Chronic wheel running-induced reduction of extinction and reinstatement of methamphetamine seeking in methamphetamine dependent rats is associated with reduced number of periaqueductal gray dopamine neurons.

Jeffery C Sobieraj, Airee Kim, McKenzie J Fannon, Chitra D Mandyam

Abstract read
In one paragraph

Article in Brain structure & function, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed, 1 pooled it
3.2field-weighted citation impact, top 8% 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

32 citing papers in PubMed, 1 synthesis or guideline pooled it, 49 citations in OpenAlex.

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  20. On the Run for Hippocampal Plasticity.Cold Spring Harbor perspectives in medicine · 2018
    Review
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

4 authors at 1 institution in 1 country.

Jeffery C SobierajCommittee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, 10550 North Torrey Pines Road, SP30-2400, La Jolla, CA, 92037, USA.
Airee KimCommittee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, 10550 North Torrey Pines Road, SP30-2400, La Jolla, CA, 92037, USA.
McKenzie J FannonCommittee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, 10550 North Torrey Pines Road, SP30-2400, La Jolla, CA, 92037, USA.
Chitra D MandyamCommittee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, 10550 North Torrey Pines Road, SP30-2400, La Jolla, CA, 92037, USA. cmandyam@scripps.edu.
Scripps Research Institute · US

Funding

Viral Vector CoreP60AA006420 · NIAAA · SCRIPPS RESEARCH INSTITUTE, THE · PI MARISA ROBERTO · 2003 to 2026
$46.3M
SYSTEMIC NEUROPHARMACOLOGYP50AA006420 · NIAAA · SCRIPPS RESEARCH INSTITUTE · PI HENRIKSEN, STEVEN J · 1985 to 2002
$5.1M
Medial Prefrontal Cortical Gliogenesis and Alcohol DependenceR01AA020098 · NIAAA · VETERANS MEDICAL RESEARCH FDN/SAN DIEGO · PI Chitra D Mandyam · 2012 to 2026
$4.9M
Methamphetamine and Adult Hippocampal NeurogenesisR01DA034140 · NIDA · VETERANS MEDICAL RESEARCH FDN/SAN DIEGO · PI MANDYAM, CHITRA D · 2013 to 2017
$1.4M
Regulation of Adult Neurogenesis by MethamphetamineK01DA022473 · NIDA · SCRIPPS RESEARCH INSTITUTE, THE · PI MANDYAM, CHITRA D · 2007 to 2012
$822k
NIAAA NIH HHS AA020098NIAAA NIH HHS AA06420NIAAA NIH HHS P50 AA006420NIAAA NIH HHS P60 AA006420NIAAA NIH HHS R01 AA020098NIDA NIH HHS DA022473NIDA NIH HHS DA034140NIDA NIH HHS K01 DA022473NIDA NIH HHS R01 DA034140
6 · The paper itself

Abstract

Exercise (physical activity) has been proposed as a treatment for drug addiction. In rodents, voluntary wheel running reduces cocaine and nicotine seeking during extinction, and reinstatement of cocaine seeking triggered by drug-cues. The purpose of this study was to examine the effects of chronic wheel running during withdrawal and protracted abstinence on extinction and reinstatement of methamphetamine seeking in methamphetamine dependent rats, and to determine a potential neurobiological correlate underlying the effects. Rats were given extended access to methamphetamine (0.05 mg/kg, 6 h/day) for 22 sessions. Rats were withdrawn and were given access to running wheels (wheel runners) or no wheels (sedentary) for 3 weeks after which they experienced extinction and reinstatement of methamphetamine seeking. Extended access to methamphetamine self-administration produced escalation in methamphetamine intake. Methamphetamine experience reduced running output, and conversely, access to wheel running during withdrawal reduced responding during extinction and, context- and cue-induced reinstatement of methamphetamine seeking. Immunohistochemical analysis of brain tissue demonstrated that wheel running during withdrawal did not regulate markers of methamphetamine neurotoxicity (neurogenesis, neuronal nitric oxide synthase, vesicular monoamine transporter-2) and cellular activation (c-Fos) in brain regions involved in relapse to drug seeking. However, reduced methamphetamine seeking was associated with running-induced reduction (and normalization) of the number of tyrosine hydroxylase immunoreactive neurons in the periaqueductal gray (PAG). The present study provides evidence that dopamine neurons of the PAG region show adaptive biochemical changes during methamphetamine seeking in methamphetamine dependent rats and wheel running abolishes these effects. Given that the PAG dopamine neurons project onto the structures of the extended amygdala, the present findings also suggest that wheel running may be preventing certain allostatic changes in the brain reward and stress systems contributing to the negative reinforcement and perpetuation of the addiction cycle.

Indexed as

AnimalsDentate GyrusDopaminergic NeuronsDrug-Seeking BehaviorExtinction, PsychologicalMaleMethamphetamineMotor ActivityNeurogenesisPeriaqueductal GrayRatsRats, WistarSelf AdministrationTyrosine 3-MonooxygenaseMethamphetamineTyrosine 3-MonooxygenaseBrdUc-FosnNOSPAGSelf-administrationTyrosine hydroxylaseVMAT2

Identifiers

PMID25273280
PMCPMC4383734
OpenAlexW2046847785

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.