Evidence map›Paper›PMID 42433415›Full record

ArticleFrontiers in public health2026

Dietary diversity, migration experience, and brain volume in middle-aged and older adults in rural Japan: a cross-sectional magnetic resonance imaging study.

Hisashi Takahashi, Fumitoshi Niwa, Toshiya Ochiai, Satoshi Teramukai, Tomoyuki Ohara, Toshiki Mizuno, Masanori Nakagawa

Abstract read
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In one paragraph

Article in Frontiers in public health, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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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

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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

7 authors.

Hisashi TakahashiDepartment of Neurology, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Fumitoshi NiwaDepartment of Neurology, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Toshiya OchiaiDepartment of Surgery, North Medical Center, Kyoto Prefectural University of Medicine, Yosano, Japan.
Satoshi TeramukaiDepartment of Biostatistics, Graduate School of Medical Science, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Tomoyuki OharaDepartment of Neurology, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Toshiki MizunoDepartment of Neurology, Kyoto Prefectural University of Medicine, Kyoto, Japan.
Masanori NakagawaDepartment of Neurology, Kyoto Prefectural University of Medicine, Kyoto, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Objective: To identify lifestyle, social, and health-related factors associated with normalized brain volume (NBV), an imaging marker of brain atrophy, among community-dwelling middle-aged and older adults in a rural Japanese population. Methods: This cross-sectional magnetic resonance imaging (MRI) study was conducted within the Tango Iki-iki (Actively Living) Longevity Study, a longitudinal community-based cohort in rural Kyoto, Japan. Participants who underwent brain MRI following cognitive screening were included. NBV was measured from T1-weighted MRI using SIENAX. Associations between NBV and demographic, lifestyle, social, and health-related factors were evaluated using linear regression analyses. Variables associated with NBV after adjustment for age and sex were further examined in multivariable models. Sensitivity analyses and principal component analysis (PCA) of dietary intake patterns were also performed. Results: A total of 235 participants were included in the MRI analysis. After adjustment for age and sex, higher dietary diversity score (DDS) ( Conclusion: Higher dietary diversity and migration experience were independently associated with greater NBV among middle-aged and older adults in a rural Japanese population.

Indexed as

BrainDietEmigration and ImmigrationMagnetic Resonance ImagingRural PopulationAgedCross-Sectional StudiesFemaleHumansJapanLife StyleLongitudinal StudiesMaleMiddle Agedagingbrain atrophylifestyle factorsneuroimagingSIENAX

Identifiers

PMID42433415
PMCPMC13352471

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