Evidence map›Paper›PMID 29788422›Full record

ArticleThe international journal of neuropsychopharmacology2019

N-Acetyl and Glutamatergic Neurometabolites in Perisylvian Brain Regions of Methamphetamine Users.

Jinsong Tang, Joseph O'Neill, Jeffry R Alger, Zhiwei Shen, Maritza C Johnson, Edythe D London

Open access · goldAbstract read
In one paragraph

Article in The international journal of neuropsychopharmacology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.1field-weighted citation impact, top 27% 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

11 citing papers in PubMed, 16 citations in OpenAlex.

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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

6 authors at 3 institutions in 2 countries.

Jinsong TangLaboratory of Molecular Neuroimaging, Semel Institute for Neuroscience and Human Behavior and Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, California.
Joseph O'NeillDivision of Child and Adolescent Psychiatry, Semel Institute for Neuroscience and Human Behavior and Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, California.
Jeffry R AlgerNeuroSpectroScopics LLC, Sherman Oaks, California.
Zhiwei ShenThe Second Affiliated Hospital of Shantou University Medical College, Shantou, China.
Maritza C JohnsonLaboratory of Molecular Neuroimaging, Semel Institute for Neuroscience and Human Behavior and Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, California.
Edythe D LondonLaboratory of Molecular Neuroimaging, Semel Institute for Neuroscience and Human Behavior and Department of Psychiatry and Biobehavioral Sciences, University of California, Los Angeles, California.
University of California, Los Angeles · USShantou University · CNSherman Oaks Hospital · US

Funding

NEUROCHEMISTRY OF MODAFINIL-MA INTERACTION IN RAT BRAINP20DA022539 · NIDA · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI LONDON, EDYTHE DANICK · 2006 to 2009
$2.9M
Neural Systems, Inhibitory Control, and Methamphetamine DependenceR01DA020726 · NIDA · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI LONDON, EDYTHE DANICK · 2005 to 2008
$2.0M
Magnetic Resonance Spectroscopic Imaging of the Brain in Methamphetamine AbuseR21DA023192 · NIDA · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI O'NEILL, JOSEPH · 2007 to 2008
$419k
1H MRSI/Response Inhibition/Methamphetamine AbusersR03DA020512 · NIDA · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI O'NEILL, JOSEPH · 2005 to 2005
$230k
NIDA NIH HHS P20 DA022539NIDA NIH HHS R01 DA020726NIDA NIH HHS R03 DA020512NIDA NIH HHS R21 DA023192
6 · The paper itself

Abstract

Background: Methamphetamine induces neuronal N-acetyl-aspartate synthesis in preclinical studies. In a preliminary human proton magnetic resonance spectroscopic imaging investigation, we also observed that N-acetyl-aspartate+N-acetyl-aspartyl-glutamate in right inferior frontal cortex correlated with years of heavy methamphetamine abuse. In the same brain region, glutamate+glutamine is lower in methamphetamine users than in controls and is negatively correlated with depression. N-acetyl and glutamatergic neurochemistries therefore merit further investigation in methamphetamine abuse and the associated mood symptoms. Methods: Magnetic resonance spectroscopic imaging was used to measure N-acetyl-aspartate+N-acetyl-aspartyl-glutamate and glutamate+glutamine in bilateral inferior frontal cortex and insula, a neighboring perisylvian region affected by methamphetamine, of 45 abstinent methamphetamine-dependent and 45 healthy control participants. Regional neurometabolite levels were tested for group differences and associations with duration of heavy methamphetamine use, depressive symptoms, and state anxiety. Results: In right inferior frontal cortex, N-acetyl-aspartate+N-acetyl-aspartyl-glutamate correlated with years of heavy methamphetamine use (r = +0.45); glutamate+glutamine was lower in methamphetamine users than in controls (9.3%) and correlated negatively with depressive symptoms (r = -0.44). In left insula, N-acetyl-aspartate+N-acetyl-aspartyl-glutamate was 9.1% higher in methamphetamine users than controls. In right insula, glutamate+glutamine was 12.3% lower in methamphetamine users than controls and correlated negatively with depressive symptoms (r = -0.51) and state anxiety (r = -0.47). Conclusions: The inferior frontal cortex and insula show methamphetamine-related abnormalities, consistent with prior observations of increased cortical N-acetyl-aspartate in methamphetamine-exposed animal models and associations between cortical glutamate and mood in human methamphetamine users.

Indexed as

AdolescentAdultAmphetamine-Related DisordersAnxietyAspartic AcidCentral Nervous System StimulantsCerebral CortexCross-Sectional StudiesDepressionFemaleGlutamic AcidGlutamineHumansMagnetic Resonance ImagingMagnetic Resonance SpectroscopyMaleAspartic AcidCentral Nervous System StimulantsGlutamic AcidGlutamineMethamphetamineN-acetylaspartate

Identifiers

PMID29788422
PMCPMC6313110
OpenAlexW2804094520

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.