Evidence map›Paper›PMID 34930940›Full record

ArticleScientific reports2021

Body mass index but not genetic risk is longitudinally associated with altered structural brain parameters.

Anne Tüngler, Sandra Van der Auwera, Katharina Wittfeld, Stefan Frenzel, Jan Terock, Nele Röder, Georg Homuth, Henry Völzke, Robin Bülow, Hans Jörgen Grabe and 1 more

Open access · goldAbstract read
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.4field-weighted citation impact, top 17% 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

7 citing papers in PubMed, 11 citations in OpenAlex.

  1. Resting-state brain dynamics are associated with body fat percentage and sympathetic outflow in healthy adults.Clinical autonomic research : official journal of the Clinical Autonomic Research Society · 2026
    Article
  2. Article
  3. Article
  4. Childhood maltreatment influences adult brain structure through its effects on immune, metabolic, and psychosocial factors.Proceedings of the National Academy of Sciences of the United States of America · 2024
    Article
  5. Article
  6. Is there a role for higher cognitive processes in the development of obesity in humans?Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2023
    Review
  7. Review
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 2 institutions in 1 country.

Anne TünglerDepartment of Psychiatry and Psychotherapy, University Medicine Greifswald, Ellernholzstraße 1-2, 17475, Greifswald, Germany.
Sandra Van der AuweraDepartment of Psychiatry and Psychotherapy, University Medicine Greifswald, Ellernholzstraße 1-2, 17475, Greifswald, Germany.
Katharina WittfeldDepartment of Psychiatry and Psychotherapy, University Medicine Greifswald, Ellernholzstraße 1-2, 17475, Greifswald, Germany.
Stefan FrenzelDepartment of Psychiatry and Psychotherapy, University Medicine Greifswald, Ellernholzstraße 1-2, 17475, Greifswald, Germany.
Jan TerockDepartment of Psychiatry and Psychotherapy, University Medicine Greifswald, Ellernholzstraße 1-2, 17475, Greifswald, Germany.
Nele RöderDepartment of Psychiatry and Psychotherapy, University Medicine Greifswald, Ellernholzstraße 1-2, 17475, Greifswald, Germany.
Georg HomuthInterfaculty Institute for Genetics and Functional Genomics, University Medicine Greifswald, Felix-Hausdorff-Str. 8, 17475, Greifswald, Germany.
Henry VölzkeInstitute for Community Medicine, University Medicine Greifswald, Walther-Rathenau-Str. 48, 17487, Greifswald, Germany.
Robin BülowDepartment of Diagnostic Radiology and Neuroradiology, University Medicine Greifswald, Ferdinand-Sauerbruch-Str., 17475, Greifswald, Germany.
Hans Jörgen GrabeDepartment of Psychiatry and Psychotherapy, University Medicine Greifswald, Ellernholzstraße 1-2, 17475, Greifswald, Germany.
Deborah JanowitzDepartment of Psychiatry and Psychotherapy, University Medicine Greifswald, Ellernholzstraße 1-2, 17475, Greifswald, Germany. Deborah.Janowitz@helios-gesundheit.de.
Universitätsmedizin Greifswald · DEUniversity of Applied Sciences Stralsund · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Evidence from previous studies suggests that elevated body mass index (BMI) and genetic risk for obesity is associated with reduced brain volume, particularly in areas of reward-related cognition, e.g. the medial prefrontal cortex (AC-MPFC), the orbitofrontal cortex (OFC), the striatum and the thalamus. However, only few studies examined the interplay between these factors in a joint approach. Moreover, previous findings are based on cross-sectional data. We investigated the longitudinal relationship between increased BMI, brain structural magnetic resonance imaging (MRI) parameters and genetic risk scores in a cohort of n = 502 community-dwelling participants from the Study of Health in Pomerania (SHIP) with a mean follow-up-time of 4.9 years. We found that (1) increased BMI values at baseline were associated with decreased brain parameters at follow-up. These effects were particularly pronounced for the OFC and AC-MPFC. (2) The genetic predisposition for BMI had no effect on brain parameters at baseline or follow-up. (3) The interaction between the genetic score for BMI and brain parameters had no effect on BMI at baseline. Finding a significant impact of overweight, but not genetic predisposition for obesity on altered brain structure suggests that metabolic mechanisms may underlie the relationship between obesity and altered brain structure.

Indexed as

Body Mass IndexGenetic Predisposition to DiseaseAdultAgedAged, 80 and overBrainBrain MappingCluster AnalysisCross-Sectional StudiesFemaleFrontal LobeGermanyHumansMagnetic Resonance ImagingMaleMiddle Aged

Identifiers

PMID34930940
PMCPMC8688483
OpenAlexW4200484708

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.