Hypertension linked to Alzheimer’s disease via stroke: Mendelian randomization

Abstract This study aimed to investigate the relationship between hypertension and Alzheimer’s disease (AD) and demonstrate the key role of stroke in this relationship using mediating Mendelian randomization. AD, a neurodegenerative disease characterized by memory loss, cognitive impairment, and beh...

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Main Authors: Chao Tang, Yayu Ma, Xiaoyang Lei, Yaqi Ding, Sushuang Yang, Dian He
Format: Article
Language:English
Published: Nature Portfolio 2023-12-01
Series:Scientific Reports
Online Access:https://doi.org/10.1038/s41598-023-49087-0
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author Chao Tang
Yayu Ma
Xiaoyang Lei
Yaqi Ding
Sushuang Yang
Dian He
author_facet Chao Tang
Yayu Ma
Xiaoyang Lei
Yaqi Ding
Sushuang Yang
Dian He
author_sort Chao Tang
collection DOAJ
description Abstract This study aimed to investigate the relationship between hypertension and Alzheimer’s disease (AD) and demonstrate the key role of stroke in this relationship using mediating Mendelian randomization. AD, a neurodegenerative disease characterized by memory loss, cognitive impairment, and behavioral abnormalities, severely affects the quality of life of patients. Hypertension is an important risk factor for AD. However, the precise mechanism underlying this relationship is unclear. To investigate the relationship between hypertension and AD, we used a mediated Mendelian randomization method and screened for mediating variables between hypertension and AD by setting instrumental variables. The results of the mediated analysis showed that stroke, as a mediating variable, plays an important role in the causal relationship between hypertension and AD. Specifically, the mediated indirect effect value for stroke obtained using multivariate mediated MR analysis was 54.9%. This implies that approximately 55% of the risk of AD owing to hypertension can be attributed to stroke. The results suggest that the increased risk of AD owing to hypertension is mediated through stroke. The finding not only sheds light on the relationship between hypertension and AD but also indicates novel methods for the prevention and treatment of AD. By identifying the critical role of stroke in the link between hypertension and AD, this study provides insights into potential interventions that could mitigate the impact of hypertension on AD. This could help develop personalized treatments and help improve the quality of life of patients with AD who suffer from hypertension.
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spelling doaj.art-9f9587fca1c6423cb808a9c8fb3b070a2023-12-10T12:17:19ZengNature PortfolioScientific Reports2045-23222023-12-011311910.1038/s41598-023-49087-0Hypertension linked to Alzheimer’s disease via stroke: Mendelian randomizationChao Tang0Yayu Ma1Xiaoyang Lei2Yaqi Ding3Sushuang Yang4Dian He5Department of Neurology, Affiliated Hospital of Guizhou Medical UniversityDepartment of Neurology, Affiliated Hospital of Guizhou Medical UniversityDepartment of Neurology, Affiliated Hospital of Guizhou Medical UniversityDepartment of Neurology, Affiliated Hospital of Guizhou Medical UniversityDepartment of Neurology, Affiliated Hospital of Guizhou Medical UniversityDepartment of Neurology, Affiliated Hospital of Guizhou Medical UniversityAbstract This study aimed to investigate the relationship between hypertension and Alzheimer’s disease (AD) and demonstrate the key role of stroke in this relationship using mediating Mendelian randomization. AD, a neurodegenerative disease characterized by memory loss, cognitive impairment, and behavioral abnormalities, severely affects the quality of life of patients. Hypertension is an important risk factor for AD. However, the precise mechanism underlying this relationship is unclear. To investigate the relationship between hypertension and AD, we used a mediated Mendelian randomization method and screened for mediating variables between hypertension and AD by setting instrumental variables. The results of the mediated analysis showed that stroke, as a mediating variable, plays an important role in the causal relationship between hypertension and AD. Specifically, the mediated indirect effect value for stroke obtained using multivariate mediated MR analysis was 54.9%. This implies that approximately 55% of the risk of AD owing to hypertension can be attributed to stroke. The results suggest that the increased risk of AD owing to hypertension is mediated through stroke. The finding not only sheds light on the relationship between hypertension and AD but also indicates novel methods for the prevention and treatment of AD. By identifying the critical role of stroke in the link between hypertension and AD, this study provides insights into potential interventions that could mitigate the impact of hypertension on AD. This could help develop personalized treatments and help improve the quality of life of patients with AD who suffer from hypertension.https://doi.org/10.1038/s41598-023-49087-0
spellingShingle Chao Tang
Yayu Ma
Xiaoyang Lei
Yaqi Ding
Sushuang Yang
Dian He
Hypertension linked to Alzheimer’s disease via stroke: Mendelian randomization
Scientific Reports
title Hypertension linked to Alzheimer’s disease via stroke: Mendelian randomization
title_full Hypertension linked to Alzheimer’s disease via stroke: Mendelian randomization
title_fullStr Hypertension linked to Alzheimer’s disease via stroke: Mendelian randomization
title_full_unstemmed Hypertension linked to Alzheimer’s disease via stroke: Mendelian randomization
title_short Hypertension linked to Alzheimer’s disease via stroke: Mendelian randomization
title_sort hypertension linked to alzheimer s disease via stroke mendelian randomization
url https://doi.org/10.1038/s41598-023-49087-0
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