Evidence map›Paper›PMID 17941718›Full record

ArticlePLoS biology2007

Hypoinsulinemia regulates amphetamine-induced reverse transport of dopamine.

Jason M Williams, W Anthony Owens, Gregory H Turner, Christine Saunders, Concetta Dipace, Randy D Blakely, Charles P France, John C Gore, Lynette C Daws, Malcolm J Avison and 1 more

Open access · goldAbstract read
In one paragraph

Article in PLoS biology, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 79 papers.

0numbers the graph read from it
0cells of the map it votes in
79citing papers in PubMed
3.5field-weighted citation impact, top 7% 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

79 citing papers in PubMed, 133 citations in OpenAlex.

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  15. Where Is Dopamine and how do Immune Cells See it?: Dopamine-Mediated Immune Cell Function in Health and Disease.Journal of neuroimmune pharmacology : the official journal of the Society on NeuroImmune Pharmacology · 2020
    Review
  16. Intranasal Insulin: a Treatment Strategy for Addiction.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2020
    Review
  17. Article
  18. Article
  19. Review
  20. Article

19 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

11 authors at 3 institutions in 1 country.

Jason M WilliamsDepartment of Molecular Physiology and Biophysics, Vanderbilt University Medical Center, Nashville, Tennessee, USA.
W Anthony Owens
Gregory H Turner
Christine Saunders
Concetta Dipace
Randy D Blakely
Charles P France
John C Gore
Lynette C Daws
Malcolm J Avison
Aurelio Galli
Vanderbilt University Medical Center · USThe University of Texas Health Science Center at Houston · USThe University of Texas Health Science Center at San Antonio · US

Funding

Postdoctoral Training in Biomedical MRI and MRST32EB001628 · NIBIB · VANDERBILT UNIVERSITY MEDICAL CENTER · PI John C Gore · 2003 to 2026
$7.0M
Amphetamine Regulation of Dopamine TransportR01DA013975 · NIDA · VANDERBILT UNIVERSITY · PI GALLI, AURELIO · 2001 to 2010
$2.8M
Molecular Mechanisms of Stimulant AbuseR01DA014684 · NIDA · VANDERBILT UNIVERSITY · PI DAWS, LYNETTE C, GALLI, AURELIO · 2001 to 2010
$2.4M
Behavioral Pharmacology of Drug DependenceK05DA017918 · NIDA · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI FRANCE, CHARLES P · 2005 to 2014
$1.2M
Amphetamine Regulation of Dopamine TransportR56DA013975 · NIDA · VANDERBILT UNIVERSITY · PI GALLI, AURELIO · 2012 to 2013
$688k
Acquisition of a 9.4T Small Animal MRI/MRS SystemS10RR017799 · NCRR · VANDERBILT UNIVERSITY · PI GORE, JOHN C · 2003 to 2003
$500k
BIOPHYSICAL BASIS OF FUNCTIONAL BRAIN FMRIR01EB002326 · NIBIB · VANDERBILT UNIVERSITY · PI GORE, JOHN C · 2003 to 2003
$454k
BEHAVIORAL PHARMACOLOGY OF OPIOIDSK02DA000211 · NIDA · UNIVERSITY OF TEXAS HLTH SCI CTR SAN ANT · PI FRANCE, CHARLES P · 1994 to 2003
$452k
AMPHETAMINE, INSULIN AND THE DA TRANSPORTER IN VIVOR21DA018992 · NIDA · UNIVERSITY OF TEXAS HLTH SCI CTR SAN ANT · PI DAWS, LYNETTE C · 2004 to 2005
$292k
NCRR NIH HHS RR17799NIBIB NIH HHS EB002326NIBIB NIH HHS R01 EB002326NIBIB NIH HHS T32 EB001628NIDA NIH HHS DA00211NIDA NIH HHS DA018992NIDA NIH HHS DA13975NIDA NIH HHS DA14684NIDA NIH HHS K02 DA000211NIDA NIH HHS K05 DA017918NIDA NIH HHS R01 DA013975NIDA NIH HHS R01 DA014684NIDA NIH HHS R21 DA018992NIDA NIH HHS R56 DA013975
6 · The paper itself

Abstract

The behavioral effects of psychomotor stimulants such as amphetamine (AMPH) arise from their ability to elicit increases in extracellular dopamine (DA). These AMPH-induced increases are achieved by DA transporter (DAT)-mediated transmitter efflux. Recently, we have shown that AMPH self-administration is reduced in rats that have been depleted of insulin with the diabetogenic agent streptozotocin (STZ). In vitro studies suggest that hypoinsulinemia may regulate the actions of AMPH by inhibiting the insulin downstream effectors phosphotidylinositol 3-kinase (PI3K) and protein kinase B (PKB, or Akt), which we have previously shown are able to fine-tune DAT cell-surface expression. Here, we demonstrate that striatal Akt function, as well as DAT cell-surface expression, are significantly reduced by STZ. In addition, our data show that the release of DA, determined by high-speed chronoamperometry (HSCA) in the striatum, in response to AMPH, is severely impaired in these insulin-deficient rats. Importantly, selective inhibition of PI3K with LY294002 within the striatum results in a profound reduction in the subsequent potential for AMPH to evoke DA efflux. Consistent with our biochemical and in vivo electrochemical data, findings from functional magnetic resonance imaging experiments reveal that the ability of AMPH to elicit positive blood oxygen level-dependent signal changes in the striatum is significantly blunted in STZ-treated rats. Finally, local infusion of insulin into the striatum of STZ-treated animals significantly recovers the ability of AMPH to stimulate DA release as measured by high-speed chronoamperometry. The present studies establish that PI3K signaling regulates the neurochemical actions of AMPH-like psychomotor stimulants. These data suggest that insulin signaling pathways may represent a novel mechanism for regulating DA transmission, one which may be targeted for the treatment of AMPH abuse and potentially other dopaminergic disorders.

Indexed as

AmphetaminesAnimalsAntibiotics, AntineoplasticBiological TransportCentral Nervous System StimulantsCorpus StriatumDopamineGlucose Metabolism DisordersInsulinMagnetic Resonance ImagingMalePhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsProto-Oncogene Proteins c-aktRatsRats, Sprague-DawleyAmphetaminesAntibiotics, AntineoplasticCentral Nervous System StimulantsDopamineInsulinPhosphatidylinositol 3-KinasesPhosphoinositide-3 Kinase InhibitorsProto-Oncogene Proteins c-aktStreptozocin

Identifiers

PMID17941718
PMCPMC2020502
OpenAlexW2013378062

What OpenQuestion holds

Textmetadata
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.