Evidence map›Paper›PMID 33216461›Full record

ArticleBrain and behavior2021

Increased transcription of TSPO, HDAC2, and HDAC6 in the amygdala of males with alcohol use disorder.

Luana Martins De Carvalho, Corinde E Wiers, Hui Sun, Gene-Jack Wang, Nora D Volkow

Open access · goldAbstract read
In one paragraph

Article in Brain and behavior, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
0.8field-weighted citation impact, top 26% 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

18 citing papers in PubMed, 19 citations in OpenAlex.

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  9. Microglia-mediated neuroimmune suppression in PTSD is associated with anhedonia.Proceedings of the National Academy of Sciences of the United States of America · 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

5 authors at 1 institution in 1 country.

Luana Martins De CarvalhoNational Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA.ORCID 0000-0001-6063-7140
Corinde E WiersNational Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA.
Hui SunNational Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA.
Gene-Jack WangNational Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA.
Nora D VolkowNational Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, Bethesda, MD, USA.
National Institutes of Health · US

Funding

Neurobiology of Substance Abuse and AddictionZIAAA000550 · NIAAA · NATIONAL INSTITUTE ON ALCOHOL ABUSE AND ALCOHOLISM · PI VOLKOW, NORA D. · 2009 to 2025
$115.1M
Brain Tissue Resource Centre for Alcohol ResearchR28AA012725 · NIAAA · UNIVERSITY OF SYDNEY · PI Greg Trevor Sutherland · 2012 to 2026
$7.0M
NIAAA NIH HHS R28 AA012725
6 · The paper itself

Abstract

introductionRepeated exposure to high doses of alcohol triggers neuroinflammatory processes that contribute to craving and mood dysfunction in alcohol use disorder (AUD). The upregulation of the translocator protein (TSPO) is considered a biomarker of neuroinflammation, and TSPO ligands have been used as neuroimaging biomarkers of neuroinflammation. Epigenetic mechanisms are also implicated in neuroinflammatory responses to alcohol, and elevated expression of HDAC2 and HDAC6 has been reported in the brain of animals exposed to chronic alcohol.

methodsThe present study examined the transcriptional regulation of TSPO, HDAC2, and HDAC6 in human postmortem brain tissue from males previously diagnosed with AUD (n = 11) compared to age-matched nondependent males (n = 13) in four brain regions relevant to AUD: prefrontal cortex (PFC), nucleus accumbens (NAc), hippocampus (HPP), and amygdala (AMY).

resultsTranslocator protein mRNA levels in AMY and PFC and HDAC2 and HDAC6 mRNA levels in AMY were upregulated in AUD compared to controls. In AMY, TSPO mRNA levels were positively associated with HDAC2 and HDAC6 mRNA levels, suggesting a possible regulation of TSPO by HDAC2 and HDAC6 in this brain region. In contrast, there were no group differences for TSPO, HDAC2, and HDAC6 in NAc and HPP.

conclusionOur study is the first to find upregulated TSPO mRNA levels in AMY and PFC in postmortem brains from AUD consistent with neuroinflammation, and in the amygdala, they implicate epigenetic regulation of TSPO by HDAC2 and HDAC6.

Indexed as

AlcoholismAmygdalaBrainEpigenesis, GeneticHistone Deacetylase 2Histone Deacetylase 6HumansMalePrefrontal CortexReceptors, GABAHDAC2 protein, humanHDAC6 protein, humanHistone Deacetylase 2Histone Deacetylase 6Receptors, GABATSPO protein, humanalcoholepigeneticsneuroinflammationTSPO

Identifiers

PMID33216461
PMCPMC7882159
OpenAlexW3098916714

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Registered trials

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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.