Evidence map›Paper›PMID 24111505›Full record

ArticleJournal of neurochemistry2014

Critical role of peripheral drug actions in experience-dependent changes in nucleus accumbens glutamate release induced by intravenous cocaine.

Ken T Wakabayashi, Eugene A Kiyatkin

Abstract read
In one paragraph

Article in Journal of neurochemistry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
1.8field-weighted citation impact, top 17% 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

19 citing papers in PubMed, 24 citations in OpenAlex.

  1. A large-scale c-Fos brain mapping study on extinction of cocaine-primed reinstatement.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
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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

2 authors at 2 institutions in 1 country.

Ken T WakabayashiIn-Vivo Electrophysiology Unit, Behavioral Neuroscience Branch, National Institute on Drug Abuse - Intramural Research Program, National Institutes of Health, DHHS, Baltimore, Maryland, USA.
Eugene A Kiyatkin
National Institute on Drug Abuse · USNational Institutes of Health · US

Funding

Electrophysiological and electrochemical studues of addictive drugsZIADA000566 · NIDA · NATIONAL INSTITUTE ON DRUG ABUSE · PI KIYATKIN, EUGENE A · 2010 to 2025
$10.1M
Intramural NIH HHS ZIA DA000566
6 · The paper itself

Abstract

Recent studies reveal that cocaine experience results in persistent neuroadaptive changes within glutamate (Glu) synapses in brain areas associated with drug reward. However, it remains unclear whether cocaine affects Glu release in drug-naive animals and how it is altered by drug experience. Using high-speed amperometry with enzyme-based and enzyme-free biosensors in freely moving rats, we show that an initial intravenous cocaine injection at a low self-administering dose (1 mg/kg) induces rapid, small and transient Glu release in the nucleus accumbens shell (NAc), which with subsequent injections rapidly becomes a much stronger, two-component increase. Using cocaine-methiodide, cocaine's analog that does not cross the blood-brain barrier, we confirm that the initial cocaine-induced Glu release in the NAc has a peripheral neural origin. Unlike cocaine, Glu responses induced by cocaine-methiodide rapidly habituate following repeated exposure. However, after cocaine experience this drug induces cocaine-like Glu responses. Hence, the interoceptive actions of cocaine, which essentially precede its direct actions in the brain, play a critical role in experience-dependent alterations in Glu release, cocaine-induced neural sensitization and may contribute to cocaine addiction. Using high-speed amperometry with enzyme-based biosensors in freely moving rats, we show that initial intravenous cocaine induces rapid, transient glutamate (Glu) release in the Nac (Nucleus accumbens), rapidly becoming a stronger, two-component increase with subsequent injections. We show that the peripheral actions of cocaine, which precedes its direct central actions, play a critical role in experience-dependent alterations in Glu release, possibly contributing to cocaine addiction.

Indexed as

AnimalsBehavior, AnimalBiosensing TechniquesBlood-Brain BarrierCocaineCocaine-Related DisordersData Interpretation, StatisticalElectrochemistryGlutamic AcidInjections, IntravenousMaleNucleus AccumbensPeripheral Nervous SystemRatsRats, Long-EvansRewardCocainecocaine methiodideGlutamic Acidelectrochemistryenzyme-based glutamate biosensorsexperience-dependent neuroplasticity of glutamate neurotransmissionglutamate releaseperipheral actions of cocaine

Identifiers

PMID24111505
PMCPMC4528614
OpenAlexW2002697016

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.