Evidence map›Paper›PMID 32333586›Full record

ArticleJournal of Alzheimer's disease : JAD2020

Sex-Specific Association of Lifetime Body Mass Index with Alzheimer's Disease Neuroimaging Biomarkers.

Seung Hoon Lee, Min Soo Byun, Jun Ho Lee, Dahyun Yi, Bo Kyung Sohn, Jun-Young Lee, Yu Kyeong Kim, Seong A Shin, Chul-Ho Sohn, Dong Young Lee and 1 more

Open access · bronzeAbstract 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 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.1field-weighted citation impact, top 21% 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

11 citing papers in PubMed, 10 citations in OpenAlex.

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  6. Cardiovascular contributions to dementia: Examining sex differences and female-specific factors.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Review
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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 6 institutions in 1 country.

Seung Hoon LeeDepartment of Neuropsychiatry, Bucheon Geriatric Medical Center, Republic of Korea.
Min Soo ByunDepartment of Neuropsychiatry, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.
Jun Ho LeeDepartment of Psychiatry, National Center for Mental Health, Seoul, Republic of Korea.
Dahyun YiInstitute of Human Behavioral Medicine, Medical Research Center, Seoul National University, Seoul, Republic of Korea.
Bo Kyung SohnDepartment of Neuropsychiatry, Inje University Sanggye Paik Hospital , Seoul, Republic of Korea.
Jun-Young LeeDepartment of Neuropsychiatry, SMG-SNU Boramae Medical Center, Seoul, Republic of Korea.
Yu Kyeong KimDepartment of Nuclear Medicine, SMG-SNU Boramae Medical Center, Seoul, Republic of Korea.
Seong A ShinDepartment of Nuclear Medicine, SMG-SNU Boramae Medical Center, Seoul, Republic of Korea.
Chul-Ho SohnDepartment of Radiology, Seoul National University Hospital, Seoul, Republic of Korea.
Dong Young LeeInstitute of Human Behavioral Medicine, Medical Research Center, Seoul National University, Seoul, Republic of Korea.
KBASE ResearchGroup
Seoul National University · KRSNUH SMG-SNU Boramae Medical Center · KRHyoja Geriatric Hospital · KRInje University Sanggye Paik Hospital · KRSeoul National University Bundang Hospital · KRSeoul National University Hospital · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAlthough recent studies indicate that the relationship between body mass index (BMI) and Alzheimer's disease (AD) may differ by both sex and age of BMI measurement, little information is available on sex- or age-specific associations between BMI and AD neuropathologies.

objectiveTo examined whether sex-specific BMIs measured at different life-stages (in early adulthood, midlife, and late life) were associated with cerebral amyloid-β (Aβ) deposition and AD-signature region cortical thickness (AD-CT) in cognitively normal (CN) older adults.

methodsA total of 212 CN subjects aged 60-90 years (females 108, males 104), who participated in the Korean Brain Aging Study for Early Diagnosis and Prediction of Alzheimer's Disease (KBASE), an ongoing prospective cohort study, were included. All participants underwent comprehensive clinical and neuropsychological assessments, [11C] Pittsburgh Compound B positron emission tomography, and brain magnetic resonance imaging. BMIs at different life stages were calculated. Multiple regression analyses were performed separately for either sex.

resultsIn males, lower early adulthood or midlife BMI was associated with greater cerebral Aβ deposition, but late life BMI was not. Lower midlife BMI was associated with reduced AD-CT, but the BMI in early adulthood and late life was not. In females, no significant association was observed between any lifetime BMI and Aβ deposition or AD-CT.

conclusionOur results support a male-specific association between BMI prior to late life, and in vivo AD pathologies. Avoiding underweight status early in life may be important to prevent AD dementia in males, but not females.

Indexed as

Body Mass IndexAgedAged, 80 and overAge FactorsAlzheimer DiseaseAmyloid beta-PeptidesBiomarkersBrainFemaleHumansMaleMiddle AgedPositron-Emission TomographyProspective StudiesSex FactorsAmyloid beta-PeptidesBiomarkersAlzheimer’s diseasecerebral amyloidlifetime body mass indexneurodegenerationsex

Identifiers

PMID32333586
PMCPMC7369081
OpenAlexW3020731423

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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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.