Evidence map›Paper›PMID 32773393›Full record

ArticleJournal of Alzheimer's disease : JAD2020

Patterns of Regional Cerebral Blood Flow as a Function of Obesity in Adults.

Daniel G Amen, Joseph Wu, Noble George, Andrew Newberg

Open access · greenAbstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
2.5field-weighted citation impact, top 10% 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

24 citing papers in PubMed, 40 citations in OpenAlex.

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  15. Examining sex differences in the association between sedentary behavior and cognitive function in bariatric surgery patients.Surgery for obesity and related diseases : official journal of the American Society for Bariatric Surgery · 2023
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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

4 authors at 4 institutions in 1 country.

Daniel G AmenAmen Clinics, Inc., Costa Mesa, CA, USA.
Joseph WuUC Irvine, Irvine, CA, USA.
Noble GeorgeJohns Hopkins University, Baltimore, MD, USA.
Andrew NewbergThomas Jefferson University and Hospital, Philadelphia, PA, USA.
Amen Clinics · USJohns Hopkins University · USThomas Jefferson University Hospital · USUC Irvine Health · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundWhile obesity has been shown to be a risk factor for Alzheimer's disease, the potential mechanisms underlying this risk may be clarified with better understanding of underlying physiology in obese persons.

objectiveTo identify patterns of cerebral perfusion abnormality in adults as a function of body mass index (BMI) defined weight categories, including overweight or obese status.

methodsA large psychiatric cohort of 35,442 brain scans across 17,721 adults (mean age 40.8±16.2 years, range 18-94 years) were imaged with SPECT during baseline and concentration scans, the latter done after each participant completed the Connors Continuous Performance Test II. ANOVA was done to identify patterns of perfusion abnormality in this cohort across BMI designations of underweight (BMI < 18.5), normal weight (BMI = 18.5 to 24.9), overweight (BMI 24.9 to 29.9), obesity (BMI≥30), and morbid obesity (BMI≥40). This analysis was done for 128 brain regions quantifying SPECT perfusion using the automated anatomical labeling (AAL) atlas.

resultsAcross adulthood, higher BMI correlated with decreased perfusion on both resting and concentration brain SPECT scans. These are seen in virtually all brain regions, including those influenced by AD pathology such as the hippocampus.

conclusionGreater BMI is associated with cerebral perfusion decreases in both resting and concentration SPECT scans across adulthood.

Indexed as

Body Mass IndexAdolescentAdultAgedAged, 80 and overBrainCerebrovascular CirculationCohort StudiesFemaleHumansMaleMiddle AgedObesityOverweightThinnessTomography, Emission-Computed, Single-PhotonCerebral perfusionobesitySPECT

Identifiers

PMID32773393
PMCPMC7683049
OpenAlexW3047205337

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.