Evidence map›Paper›PMID 33769661›Full record

ArticleHuman brain mapping2021

Insulin resistance accounts for metabolic syndrome-related alterations in brain structure.

Ran Lu, N Ahmad Aziz, Kersten Diers, Tony Stöcker, Martin Reuter, Monique M B Breteler

Open access · goldAbstract read
In one paragraph

Article in Human brain mapping, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
4.6field-weighted citation impact, top 4% 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

26 citing papers in PubMed, 46 citations in OpenAlex.

  1. Article
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  6. Metabolic Status Modulates Global and Local Brain Age Estimates in Overweight and Obese Adults.Biological psychiatry. Cognitive neuroscience and neuroimaging · 2025
    Article
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  13. Large-Scale Population-Based Studies of Blood Metabolome and Brain Health.Current topics in behavioral neurosciences · 2024
    Review
  14. 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

6 authors at 3 institutions in 2 countries.

Ran LuPopulation Health Sciences, German Center for Neurodegenerative diseases (DZNE), Bonn, Germany.ORCID 0000-0002-7237-3362
N Ahmad AzizPopulation Health Sciences, German Center for Neurodegenerative diseases (DZNE), Bonn, Germany.ORCID 0000-0001-6184-458X
Kersten DiersImage Analysis, German Center for Neurodegenerative diseases (DZNE), Bonn, Germany.ORCID 0000-0003-3800-4026
Tony StöckerMR Physics, German Center for Neurodegenerative diseases (DZNE), Bonn, Germany.ORCID 0000-0002-8946-9141
Martin ReuterImage Analysis, German Center for Neurodegenerative diseases (DZNE), Bonn, Germany.ORCID 0000-0002-2665-9693
Monique M B BretelerPopulation Health Sciences, German Center for Neurodegenerative diseases (DZNE), Bonn, Germany.ORCID 0000-0002-0626-9305
University of Bonn · DEGerman Center for Neurodegenerative Diseases · DEHarvard University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Metabolic syndrome (MetS) is a major public health burden worldwide and associated with brain abnormalities. Although insulin resistance is considered a pivotal feature of MetS, its role in the pathogenesis of MetS-related brain alterations in the general population is unclear. Therefore, in 973 participants (mean age 52.5 years) of the population-based Rhineland Study, we assessed brain morphology in relation to MetS and insulin resistance, and evaluated to what extent the pattern of structural brain changes seen in MetS overlap with those associated with insulin resistance. Cortical reconstruction and volumetric segmentation were obtained from high-resolution brain images at 3 Tesla using FreeSurfer. The relations between metabolic measures and brain structure were assessed through (generalized) linear models. Both MetS and insulin resistance were associated with smaller cortical gray matter volume and thickness, but not with white matter or subcortical gray matter volume. Age- and sex-adjusted vertex-based brain morphometry demonstrated that MetS and insulin resistance were related to cortical thinning in a similar spatial pattern. Importantly, no independent effect of MetS on cortical gray matter was observed beyond the effect of insulin resistance. Our findings suggest that addressing insulin resistance is critical in the prevention of MetS-related brain changes in later life.

Indexed as

Insulin ResistanceAdultAgedCerebral CortexFemaleGray MatterHumansMagnetic Resonance ImagingMaleMetabolic SyndromeMiddle AgedWhite Matteratrophycortical thicknessinsulin resistancemagnetic resonance imagingmetabolic syndrome

Identifiers

PMID33769661
PMCPMC8090787
OpenAlexW3138062592

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.