Evidence map›Paper›PMID 27859973›Full record

ArticleHuman brain mapping2017

Reorganization of brain connectivity in obesity.

Paul Geha, Guillermo Cecchi, R Todd Constable, Chadi Abdallah, Dana M Small

Open access · greenAbstract read
In one paragraph

Article in Human brain mapping, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 55 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
55citing papers in PubMed, 1 pooled it
4.5field-weighted citation impact, top 5% 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

55 citing papers in PubMed, 1 synthesis or guideline pooled it, 92 citations in OpenAlex.

  1. Pooled it
  2. The causes of cachexia: key signals and the brain.Nature reviews. Endocrinology · 2026
    Review
  3. Article
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  7. The WFS1-ZnT3-ZnAdvanced science (Weinheim, Baden-Wurttemberg, Germany) · 2024
    Article
  8. Review
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  17. Observational
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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 3 institutions in 1 country.

Paul GehaDepartment of Psychiatry, Yale University School of Medicine, New Haven, Connecticut.
Guillermo CecchiThomas J. Watson Research Center, Yorktown Heights, New York.
R Todd ConstableDiagnostic Radiology, Yale University School of Medicine, New Haven, Connecticut.
Chadi AbdallahDepartment of Psychiatry, Yale University School of Medicine, New Haven, Connecticut.
Dana M SmallDepartment of Psychiatry, Yale University School of Medicine, New Haven, Connecticut.
John B. Pierce Laboratory · USYale University · USIBM Research - Thomas J. Watson Research Center · US

Funding

TOBACCO DEPENDENCE AND RISK FACTORS FOR TREATMENT FAILURP50DA013334 · NIDA · YALE UNIVERSITY · PI O'MALLEY, STEPHANIE S · 1999 to 2003
$8.0M
Improving Alcoholism TreatmentK05AA014715 · NIAAA · YALE UNIVERSITY · PI O'MALLEY, STEPHANIE S · 2004 to 2013
$2.1M
Interactions Between Nicotine Addiction and Food RewardR03DA022292 · NIDA · JOHN B. PIERCE LABORATORY, INC. · PI SMALL, DANA M · 2006 to 2006
$231k
NIAAA NIH HHS K05 AA014715NIDA NIH HHS P50 DA013334NIDA NIH HHS R03 DA022292
6 · The paper itself

Abstract

Global brain connectivity (GBC) identifies regions of the brain, termed "hubs," which are densely connected and metabolically costly, and have a wide influence on brain function. Since obesity is associated with central and peripheral metabolic dysfunction we sought to determine if GBC is altered in obesity. Two independent fMRI data sets were subjected to GBC analyses. The first data set was acquired while participants (n = 15 healthy weight and 15 obese) tasted milkshake and the second with participants at rest (n = 33 healthy weight and 28 obese). In the resting state and during milkshake consumption GBC is consistently decreased in the ventromedial and ventrolateral prefrontal cortex, insula and caudate nucleus, and increased in brain regions belonging to the dorsal attention network including premotor areas, superior parietal lobule, and visual cortex. During milkshake consumption, but not at rest, additional decreases in GBC are observed in feeding-related circuitry including the insula, amygdala, anterior hippocampus, hypothalamus, midbrain, brainstem and somatomotor cortex. Additionally, GBC differences were not accounted for by age. These results demonstrate that obesity is associated with decreased GBC in prefrontal and feeding circuits and increased GBC in the dorsal attention network. We therefore conclude that global brain organization is altered in obesity to favor networks important for external orientation over those monitoring homeostatic state and guiding feeding decisions. Furthermore, since prefrontal decreases are also observed at rest in obese individuals future work should evaluate whether these changes are associated with neurocognitive impairments frequently observed in obesity and diabetes. Hum Brain Mapp 38:1403-1420, 2017. © 2016 Wiley Periodicals, Inc.

Indexed as

Brain MappingAdultAge FactorsBrainEatingFemaleHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMaleMiddle AgedMotionNeural PathwaysObesityOxygenOxygenattentionconnectivityfeedinginternal milieuobesityresting statereward

Identifiers

PMID27859973
PMCPMC6866793
OpenAlexW2565999923

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.