Evidence map›Paper›PMID 34313804›Full record

SynthesisPsychopharmacology2021

Shared gray matter alterations in subtypes of addiction: a voxel-wise meta-analysis.

Mengzhe Zhang, Xinyu Gao, Zhengui Yang, Mengmeng Wen, Huiyu Huang, Ruiping Zheng, Weijian Wang, Yarui Wei, Jingliang Cheng, Shaoqiang Han and 1 more

Abstract readMeta-AnalysisReview
PubMed Publisher
In one paragraph

Synthesis in Psychopharmacology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 4 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 4 pooled it
10.7field-weighted citation impact, top 1% 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

31 citing papers in PubMed, 4 syntheses or guidelines pooled it, 116 citations in OpenAlex.

  1. Pooled it
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  13. Similarities and Differences in Neuroimaging.Advances in experimental medicine and biology · 2025
    Review
  14. Let's focus on the insula in addiction: A refined anatomical exploration of insula in severe alcohol and cocaine use disorders.European psychiatry : the journal of the Association of European Psychiatrists · 2024
    Article
  15. Neuroimaging Biomarkers in Addiction.medRxiv : the preprint server for health sciences · 2024
    Article
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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

11 authors at 1 institution in 1 country.

Mengzhe ZhangDepartment of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
Xinyu GaoDepartment of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
Zhengui YangDepartment of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
Mengmeng WenDepartment of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
Huiyu HuangDepartment of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
Ruiping ZhengDepartment of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
Weijian WangDepartment of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
Yarui WeiDepartment of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.
Jingliang ChengDepartment of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. fccchengjl@zzu.edu.cn.
Shaoqiang HanDepartment of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. ShaoqiangHan@163.com.
Yong ZhangDepartment of MRI, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China. zzuzhangyong2013@163.com.ORCID http://orcid.org/0000-0003-4892-6614
First Affiliated Hospital of Zhengzhou University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNumerous studies based on voxel-based morphometry (VBM) have revealed gray matter (GM) alterations in multiple brain regions for addiction. However, findings are poorly replicated, and it remains elusive whether distinct diagnoses of addiction are underpinned by shared abnormalities. Our aim was to conduct a quantitative meta-analysis of structural neuroimaging studies investigating GM abnormalities in two main categories of addiction: substance use disorders (SUD) and behavioral addictions (BA).

methodA systematic database search was conducted in several databases from Jan 1, 2010, to Oct 23, 2020, to identify eligible VBM studies. Meta-analysis was performed with the seed-based d mapping software package to compare alternations between individuals with addiction-related disorders and healthy controls (HC).

resultsA total of 59 VBM studies including 2096 individuals with addiction-related disorders and 2637 HC met the inclusion criteria. Individuals with addiction-related disorders showed shared GM volume decrease in bilateral prefrontal cortex, bilateral insula, bilateral rolandic operculum, left superior temporal gyrus, and right Heschl gyrus and GM increase in right lingual gyrus and right fusiform gyrus comparing with HC (p < 0.005). Subgroup analysis found heterogeneity between SUD and BA mainly in left inferior occipital gyrus and right striatum (p < 0.005). Meta-regression revealed that GM atrophy in right anterior cingulate (r = 0.541, p = 0.03 (uncorrected)) and left inferior frontal gyrus (r = 0.595, p = 0.015) were positively correlated with higher impulsivity.

conclusionsThis meta-analysis identified a concordance across subtypes of addiction in terms of the brain structural changes in prefrontal and insula areas, which may relate to higher impulsivity observed across addiction diagnoses. This concordance provides an organizing model that emphasizes the importance of shared neural substrates in addiction.

Indexed as

Cerebral CortexBrainGray MatterGyrus CinguliHumansMagnetic Resonance ImagingNeuroimagingBehavioral disordersGray matterMeta-analysisSubstance use disordersVoxel-based morphometry

Identifiers

PMID34313804
OpenAlexW3183526226

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.