Relationships between educational attainment, hypertension, and amyloid negative subcortical vascular dementia: The brain-battering hypothesis

PurposeMany epidemiological studies suggest that lower education levels and vascular risk factors increase the likelihood of developing Alzheimer's disease dementia (ADD) and subcortical vascular dementia (SVaD). However, whether the brain-battering hypothesis can explain the relationship betwe...

Full description

Bibliographic Details
Main Authors: Song Hwangbo, Young Ju Kim, Yu Hyun Park, Hee Jin Kim, Duk L. Na, Hyemin Jang, Sang Won Seo
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-08-01
Series:Frontiers in Neuroscience
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fnins.2022.934149/full
_version_ 1811221244158148608
author Song Hwangbo
Song Hwangbo
Young Ju Kim
Young Ju Kim
Yu Hyun Park
Yu Hyun Park
Hee Jin Kim
Hee Jin Kim
Duk L. Na
Duk L. Na
Duk L. Na
Duk L. Na
Hyemin Jang
Hyemin Jang
Hyemin Jang
Sang Won Seo
Sang Won Seo
Sang Won Seo
Sang Won Seo
Sang Won Seo
author_facet Song Hwangbo
Song Hwangbo
Young Ju Kim
Young Ju Kim
Yu Hyun Park
Yu Hyun Park
Hee Jin Kim
Hee Jin Kim
Duk L. Na
Duk L. Na
Duk L. Na
Duk L. Na
Hyemin Jang
Hyemin Jang
Hyemin Jang
Sang Won Seo
Sang Won Seo
Sang Won Seo
Sang Won Seo
Sang Won Seo
author_sort Song Hwangbo
collection DOAJ
description PurposeMany epidemiological studies suggest that lower education levels and vascular risk factors increase the likelihood of developing Alzheimer's disease dementia (ADD) and subcortical vascular dementia (SVaD). However, whether the brain-battering hypothesis can explain the relationship between education levels and the clinical diagnosis of dementia remains controversial. The objective of this study was to investigate whether vascular risk factors mediate the association between education level and the diagnosis of amyloid-beta positive (Aβ+) ADD and amyloid-beta negative (Aβ-) SVaD.MethodsWe analyzed 376 participants with Aβ normal cognition (Aβ- NC), 481 with Aβ+ ADD, and 102 with Aβ- SVaD. To investigate the association of education level and vascular risk factors with these diagnoses, multivariable logistic regression analysis was used, with age, sex, and APOE ε4 carrier status used as covariates. Path analysis was performed to investigate the mediation effects of hypertension on the diagnosis of Aβ- SVaD.ResultsThe Aβ- SVaD group (7.9 ± 5.1 years) had lower education levels than did the Aβ- NC (11.8 ± 4.8 years) and Aβ+ ADD (11.2 ± 4.9 years) groups. The frequencies of hypertension and diabetes mellitus were higher in the Aβ- SVaD group (78.4 and 32.4%, respectively) than in the Aβ- NC (44.4 and 20.8%) and Aβ+ ADD (41.8 and 15.8%, respectively) groups. Increased education level was associated with a lower risk of Aβ- SVaD [odds ratio (OR) 0.866, 95% confidence interval (CI), 0.824–0.911], but not Aβ+ ADD (OR 0.971, 95% CI 0.940–1.003). The frequency of hypertension was associated with a higher risk of developing Aβ- SVaD (OR 3.373, 95% CI, 1.908–5.961), but not Aβ+ ADD (OR 0.884, 95% CI, 0.653–1.196). In the path analysis, the presence of hypertension partially mediated the association between education level and the diagnosis of Aβ- SVaD.ConclusionOur findings revealed that education level might influence the development of Aβ- SVaD through the brain-battering hypothesis. Furthermore, our findings suggest that suitable strategies, such as educational attainment and prevention of hypertension, are needed for the prevention of Aβ- SVaD.
first_indexed 2024-04-12T07:56:02Z
format Article
id doaj.art-c50d5148d58a45e6b8bf3e7c89ab78ce
institution Directory Open Access Journal
issn 1662-453X
language English
last_indexed 2024-04-12T07:56:02Z
publishDate 2022-08-01
publisher Frontiers Media S.A.
record_format Article
series Frontiers in Neuroscience
spelling doaj.art-c50d5148d58a45e6b8bf3e7c89ab78ce2022-12-22T03:41:29ZengFrontiers Media S.A.Frontiers in Neuroscience1662-453X2022-08-011610.3389/fnins.2022.934149934149Relationships between educational attainment, hypertension, and amyloid negative subcortical vascular dementia: The brain-battering hypothesisSong Hwangbo0Song Hwangbo1Young Ju Kim2Young Ju Kim3Yu Hyun Park4Yu Hyun Park5Hee Jin Kim6Hee Jin Kim7Duk L. Na8Duk L. Na9Duk L. Na10Duk L. Na11Hyemin Jang12Hyemin Jang13Hyemin Jang14Sang Won Seo15Sang Won Seo16Sang Won Seo17Sang Won Seo18Sang Won Seo19Department of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South KoreaNeuroscience Center, Samsung Medical Center, Seoul, South KoreaDepartment of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South KoreaNeuroscience Center, Samsung Medical Center, Seoul, South KoreaDepartment of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South KoreaDepartment of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University, Seoul, South KoreaDepartment of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South KoreaNeuroscience Center, Samsung Medical Center, Seoul, South KoreaDepartment of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South KoreaNeuroscience Center, Samsung Medical Center, Seoul, South KoreaDepartment of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University, Seoul, South KoreaStem Cell and Regenerative Medicine Institute, Samsung Medical Center, Seoul, South KoreaDepartment of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South KoreaNeuroscience Center, Samsung Medical Center, Seoul, South KoreaSamsung Alzheimer Convergence Research Center, Samsung Medical Center, Seoul, South KoreaDepartment of Neurology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South KoreaNeuroscience Center, Samsung Medical Center, Seoul, South KoreaDepartment of Health Sciences and Technology, Samsung Advanced Institute for Health Sciences & Technology (SAIHST), Sungkyunkwan University, Seoul, South KoreaSamsung Alzheimer Convergence Research Center, Samsung Medical Center, Seoul, South KoreaDepartment of Intelligent Precision Healthcare Convergence, Sungkyunkwan University School of Medicine, Suwon, South KoreaPurposeMany epidemiological studies suggest that lower education levels and vascular risk factors increase the likelihood of developing Alzheimer's disease dementia (ADD) and subcortical vascular dementia (SVaD). However, whether the brain-battering hypothesis can explain the relationship between education levels and the clinical diagnosis of dementia remains controversial. The objective of this study was to investigate whether vascular risk factors mediate the association between education level and the diagnosis of amyloid-beta positive (Aβ+) ADD and amyloid-beta negative (Aβ-) SVaD.MethodsWe analyzed 376 participants with Aβ normal cognition (Aβ- NC), 481 with Aβ+ ADD, and 102 with Aβ- SVaD. To investigate the association of education level and vascular risk factors with these diagnoses, multivariable logistic regression analysis was used, with age, sex, and APOE ε4 carrier status used as covariates. Path analysis was performed to investigate the mediation effects of hypertension on the diagnosis of Aβ- SVaD.ResultsThe Aβ- SVaD group (7.9 ± 5.1 years) had lower education levels than did the Aβ- NC (11.8 ± 4.8 years) and Aβ+ ADD (11.2 ± 4.9 years) groups. The frequencies of hypertension and diabetes mellitus were higher in the Aβ- SVaD group (78.4 and 32.4%, respectively) than in the Aβ- NC (44.4 and 20.8%) and Aβ+ ADD (41.8 and 15.8%, respectively) groups. Increased education level was associated with a lower risk of Aβ- SVaD [odds ratio (OR) 0.866, 95% confidence interval (CI), 0.824–0.911], but not Aβ+ ADD (OR 0.971, 95% CI 0.940–1.003). The frequency of hypertension was associated with a higher risk of developing Aβ- SVaD (OR 3.373, 95% CI, 1.908–5.961), but not Aβ+ ADD (OR 0.884, 95% CI, 0.653–1.196). In the path analysis, the presence of hypertension partially mediated the association between education level and the diagnosis of Aβ- SVaD.ConclusionOur findings revealed that education level might influence the development of Aβ- SVaD through the brain-battering hypothesis. Furthermore, our findings suggest that suitable strategies, such as educational attainment and prevention of hypertension, are needed for the prevention of Aβ- SVaD.https://www.frontiersin.org/articles/10.3389/fnins.2022.934149/fullAlzheimer's diseasevascular dementiaeducationhypertensionvascular risk factor
spellingShingle Song Hwangbo
Song Hwangbo
Young Ju Kim
Young Ju Kim
Yu Hyun Park
Yu Hyun Park
Hee Jin Kim
Hee Jin Kim
Duk L. Na
Duk L. Na
Duk L. Na
Duk L. Na
Hyemin Jang
Hyemin Jang
Hyemin Jang
Sang Won Seo
Sang Won Seo
Sang Won Seo
Sang Won Seo
Sang Won Seo
Relationships between educational attainment, hypertension, and amyloid negative subcortical vascular dementia: The brain-battering hypothesis
Frontiers in Neuroscience
Alzheimer's disease
vascular dementia
education
hypertension
vascular risk factor
title Relationships between educational attainment, hypertension, and amyloid negative subcortical vascular dementia: The brain-battering hypothesis
title_full Relationships between educational attainment, hypertension, and amyloid negative subcortical vascular dementia: The brain-battering hypothesis
title_fullStr Relationships between educational attainment, hypertension, and amyloid negative subcortical vascular dementia: The brain-battering hypothesis
title_full_unstemmed Relationships between educational attainment, hypertension, and amyloid negative subcortical vascular dementia: The brain-battering hypothesis
title_short Relationships between educational attainment, hypertension, and amyloid negative subcortical vascular dementia: The brain-battering hypothesis
title_sort relationships between educational attainment hypertension and amyloid negative subcortical vascular dementia the brain battering hypothesis
topic Alzheimer's disease
vascular dementia
education
hypertension
vascular risk factor
url https://www.frontiersin.org/articles/10.3389/fnins.2022.934149/full
work_keys_str_mv AT songhwangbo relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT songhwangbo relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT youngjukim relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT youngjukim relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT yuhyunpark relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT yuhyunpark relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT heejinkim relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT heejinkim relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT duklna relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT duklna relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT duklna relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT duklna relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT hyeminjang relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT hyeminjang relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT hyeminjang relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT sangwonseo relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT sangwonseo relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT sangwonseo relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT sangwonseo relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis
AT sangwonseo relationshipsbetweeneducationalattainmenthypertensionandamyloidnegativesubcorticalvasculardementiathebrainbatteringhypothesis