Evidence map›Paper›PMID 33967051›Full record

ArticleJournal of Alzheimer's disease : JAD2021

Blood DNA Methylation Levels in the WNT5A Gene Promoter Region: A Potential Biomarker for Agitation in Subjects with Dementia.

Nobuyuki Kobayashi, Shunichiro Shinagawa, Tomoyuki Nagata, Kenji Tagai, Kazuya Shimada, Azusa Ishii, Naomi Oka, Masahiro Shigeta, Kazuhiro Kondo

Open access · bronzeAbstract read
In one paragraph

Article in Journal of Alzheimer's disease : JAD, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.3field-weighted citation impact, top 44% 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

3 citing papers in PubMed, 5 citations in OpenAlex.

  1. Toward Precision Neuropsychiatry of Dementia: Neuropsychiatric Symptoms as Multidimensional Clinical Phenotypes.Psychogeriatrics : the official journal of the Japanese Psychogeriatric Society · 2026
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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

9 authors at 1 institution in 1 country.

Nobuyuki KobayashiDepartment of Virology, The Jikei University School of Medicine, Tokyo, Japan.
Shunichiro ShinagawaDepartment of Psychiatry, The Jikei University School of Medicine, Tokyo, Japan.
Tomoyuki NagataDepartment of Psychiatry, The Jikei University School of Medicine, Tokyo, Japan.
Kenji TagaiDepartment of Psychiatry, The Jikei University School of Medicine, Tokyo, Japan.
Kazuya ShimadaDepartment of Virology, The Jikei University School of Medicine, Tokyo, Japan.
Azusa IshiiDepartment of Virology, The Jikei University School of Medicine, Tokyo, Japan.
Naomi OkaDepartment of Virology, The Jikei University School of Medicine, Tokyo, Japan.
Masahiro ShigetaDepartment of Psychiatry, The Jikei University School of Medicine, Tokyo, Japan.
Kazuhiro KondoDepartment of Virology, The Jikei University School of Medicine, Tokyo, Japan.
Jikei University School of Medicine · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundBehavioral and psychological symptoms of dementia (BPSD) cause a heavy burden for both patient and caregivers. These symptoms are diverse, and their mechanism is still unclear. Agitation is the most common and difficult to treat among BPSD. In recent years, while changes in DNA methylation levels have been receiving attention as a biomarker of aging and dementia, associations with BPSD have not been examined.

objectiveFocusing on agitation, the objective of the present study was to identify a region where changes in DNA methylation levels are associated with agitation.

methodsUsing genome-wide DNA methylation analysis data for 7 dementia subjects with agitation, 5 dementia subjects without agitation, and 4 normal elderly controls, we determined a signaling pathway in the WNT5A gene promoter region to be associated with agitation. Based on this result, we measured DNA methylation levels in this region for 26 dementia subjects with agitation and 82 dementia subjects without agitation by means of methylation-sensitive high-resolution melting (MS-HRM) analysis.

resultsThe WNT5A DNA methylation level in dementia subjects with agitation was significantly lower than in those without agitation (p = 0.001). Changes in WNT5A DNA methylation levels were not influenced by age, sex, body mass index, APOE ɛ4, medication, or inflammatory cytokines.

conclusionOur results suggested an association of agitation with Wnt signaling, in particular with changes in WNT5A DNA methylation levels, which could be a potentially useful biomarker for predicting the appearance of agitation. It may contribute to the elucidation of the mechanism of BPSD.

Indexed as

DNA MethylationPromoter Regions, GeneticAgedAged, 80 and overBiomarkersDementiaFemaleHumansMaleMiddle AgedPsychomotor AgitationWnt-5a ProteinBiomarkersWnt-5a ProteinAlzheimer’s diseasebehavioral and psychological symptoms of dementiadementiaDNA methylationepigeneticsWNT5AWnt signaling pathway

Identifiers

PMID33967051
PMCPMC8293647
OpenAlexW3159065638

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Registered trials

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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.