Evidence map›Paper›PMID 24269057›Full record

ArticleBiological psychiatry2014

Greater monoamine oxidase a binding in alcohol dependence.

Brittany A Matthews, Stephen J Kish, Xin Xu, Isabelle Boileau, Pablo M Rusjan, Alan A Wilson, Dan DiGiacomo, Sylvain Houle, Jeffrey H Meyer

Open access · greenAbstract read
In one paragraph

Article in Biological psychiatry, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.1field-weighted citation impact, top 14% 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

10 citing papers in PubMed, 28 citations in OpenAlex.

  1. Trial
  2. Article
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  4. Type A monoamine oxidase; its unique role in mood, behavior and neurodegeneration.Journal of neural transmission (Vienna, Austria : 1996) · 2025
    Review
  5. Article
  6. Article
  7. Review
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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 1 institution in 1 country.

Brittany A MatthewsResearch Imaging Centre and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health and Department of Psychiatry and Department of Pharmacology, University of Toronto, Toronto, Ontario, Canada.
Stephen J KishResearch Imaging Centre and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health and Department of Psychiatry and Department of Pharmacology, University of Toronto, Toronto, Ontario, Canada.
Xin XuResearch Imaging Centre and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health and Department of Psychiatry and Department of Pharmacology, University of Toronto, Toronto, Ontario, Canada.
Isabelle BoileauResearch Imaging Centre and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health and Department of Psychiatry and Department of Pharmacology, University of Toronto, Toronto, Ontario, Canada.
Pablo M RusjanResearch Imaging Centre and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health and Department of Psychiatry and Department of Pharmacology, University of Toronto, Toronto, Ontario, Canada.
Alan A WilsonResearch Imaging Centre and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health and Department of Psychiatry and Department of Pharmacology, University of Toronto, Toronto, Ontario, Canada.
Dan DiGiacomoResearch Imaging Centre and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health and Department of Psychiatry and Department of Pharmacology, University of Toronto, Toronto, Ontario, Canada.
Sylvain HouleResearch Imaging Centre and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health and Department of Psychiatry and Department of Pharmacology, University of Toronto, Toronto, Ontario, Canada.
Jeffrey H MeyerResearch Imaging Centre and Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health and Department of Psychiatry and Department of Pharmacology, University of Toronto, Toronto, Ontario, Canada. Electronic address: jeff.meyer@camhpet.ca.
Centre for Addiction and Mental Health · CA

Funding

CIHR 138519-1
6 · The paper itself

Abstract

backgroundAlcohol dependence (AD) is a multiorgan disease in which excessive oxidative stress and apoptosis are implicated. Monoamine oxidase A (MAO-A) is an important enzyme on the outer mitochondrial membrane that participates in the cellular response to oxidative stress and mitochondrial toxicity. It is unknown whether MAO-A levels are abnormal in AD. We hypothesized that MAO-A VT, an index of MAO-A level, is elevated in the prefrontal cortex (PFC) during AD, because markers of greater oxidative stress and apoptosis are reported in the brain in AD and a microarray analysis reported greater MAO-A messenger RNA in the PFC of rodents exposed to alcohol vapor.

methodsSixteen participants with alcohol dependence and 16 healthy control subjects underwent [(11)C]-harmine positron emission tomography. All were nonsmoking, medication- and drug-free, and had no other past or present psychiatric or medical illnesses.

resultsMAO-A VT was significantly greater in the PFC (37%, independent samples t test, t₃₀ = 3.93, p < .001), and all brain regions analyzed (mean 32%, multivariate analysis of variance, F₇,₂₄ = 3.67, p = .008). Greater duration of heavy drinking correlated positively with greater MAO-A VT in the PFC (r = .67, p = .005) and all brain regions analyzed (r = .73 to .57, p = .001-.02).

conclusionsThis finding represents a new pathological marker present in AD that is therapeutically targetable through direct inhibition or by novel treatments toward oxidative/pro-apoptotic processes implicated by MAO-A overexpression.

Indexed as

AdultAlcoholismBrainFemaleHumansMaleMonoamine OxidasePositron-Emission TomographyPrefrontal CortexMonoamine OxidaseAddictionsalcohol dependencemonoamine oxidase Aneurotoxicityoxidative stresspositron emission tomography

Identifiers

PMID24269057
PMCPMC4942263
OpenAlexW2012698236

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.