Evidence map›Paper›PMID 21229349›Full record

ArticlePsychopharmacology2011

Chronic methamphetamine exposure suppresses the striatal expression of members of multiple families of immediate early genes (IEGs) in the rat: normalization by an acute methamphetamine injection.

Michael T McCoy, Subramaniam Jayanthi, Jacqueline A Wulu, Genevieve Beauvais, Bruce Ladenheim, Tracey A Martin, Irina N Krasnova, Amber B Hodges, Jean Lud Cadet

Abstract read
In one paragraph

Article in Psychopharmacology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
2.8field-weighted citation impact, top 10% 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

35 citing papers in PubMed, 54 citations in OpenAlex.

  1. Article
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  8. Gene Expression Profiling in the Striatum ofBiomolecules & therapeutics · 2021
    Article
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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

9 authors at 2 institutions in 1 country.

Michael T McCoyMolecular Neuropsychiatry Research Branch, DHHS/NIH/NIDA Intramural Research Program, NIDA/NIH, 251 Bayview Boulevard, Baltimore, MD 21224, USA.
Subramaniam Jayanthi
Jacqueline A Wulu
Genevieve Beauvais
Bruce Ladenheim
Tracey A Martin
Irina N Krasnova
Amber B Hodges
Jean Lud Cadet
United States Department of Health and Human Services · USMorgan State University · US

Funding

Neurotoxicity in the adult rat following chronic exposure to methamphetamineZIADA000552 · NIDA · NATIONAL INSTITUTE ON DRUG ABUSE · PI CADET, JEAN LUD · 2009 to 2025
$34.3M
Protective effects of DA antagonists Vs METH induced toxicity in ratsZIADA000551 · NIDA · NATIONAL INSTITUTE ON DRUG ABUSE · PI CADET, JEAN LUD · 2009 to 2016
$4.7M
cDNA Array Analysis of Cu/Zn SOD Tg Mice Treated with Neurotoxic Doses of AMPHZIADA000174 · NIDA · NATIONAL INSTITUTE ON DRUG ABUSE · PI CADET, JEAN LUD · 2009 to 2011
$760k
Intramural NIH HHS ZIA DA000552
6 · The paper itself

Abstract

rationaleRepeated injections of cocaine cause blunted responses to acute cocaine challenge-induced increases in the expression of immediate early genes (IEGs).

objectivesThe aim of this study was to test if chronic methamphetamine (METH) exposure might cause similar blunting of acute METH-induced increases in IEG expression.

resultsRepeated saline or METH injections were given to rats over 14 days. After 1 day of withdrawal, they received a single injection of saline or METH (5 mg/kg). Acute injection of METH increased c-fos, fosB, fra2, junB, Egr1-3, Nr4a1 (Nur77), and Nr4a3 (Nor-1) mRNA levels in the striatum of saline-pretreated rats. Chronic METH treatment alone reduced the expression of AP1, Erg1-3, and Nr4a1 transcription factors below control levels. Acute METH challenge normalized these values in METH-pretreated rats. Unexpectedly, acute METH challenge to METH-pretreated animals caused further decreases in Nr4a2 (Nurr1) mRNA levels. In contrast, the METH challenge caused significant but blunted increases in Nr4a3 and Arc expression in METH-pretreated rats. There were also chronic METH-associated decreases in the expression of cAMP responsive element binding protein (CREB) which modulates IEG expression via activation of the cAMP/PKA/CREB signal transduction pathway. Chronic METH exposure also caused significant decreases in preprotachykinin, but not in prodynorphin, mRNA levels.

conclusionsThese results support the accumulated evidence that chronic administration of psychostimulants is associated with blunting of their acute stimulatory effects on IEG expression. The METH-induced renormalization of the expression of several IEGs in rats chronically exposed to METH hints to a potential molecular explanation for the recurrent self-administration of the drug by human addicts.

Indexed as

Analysis of VarianceAnimalsCentral Nervous System StimulantsCorpus StriatumCREB-Binding ProteinCytoskeletal ProteinsDose-Response Relationship, DrugDrug Administration ScheduleGene Expression RegulationImmediate-Early ProteinsMaleMethamphetamineNerve Tissue ProteinsRatsRats, Sprague-DawleyRNA, Messengeractivity regulated cytoskeletal-associated proteinCentral Nervous System StimulantsCREB-Binding ProteinCytoskeletal ProteinsImmediate-Early ProteinsMethamphetamineNerve Tissue ProteinsRNA, Messenger

Identifiers

PMID21229349
PMCPMC3803141
OpenAlexW2054525013

What OpenQuestion holds

Textmetadata
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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.