The oral-brain axis: can periodontal pathogens trigger the onset and progression of Alzheimer’s disease?

Alzheimer’s disease (AD) is the most prevalent form of dementia, characterized by a progressive cognitive decline. Sporadic AD, accounting for more than 95% of cases, may arise due to the influence of environmental factors. It was reported that periodontitis, a common oral ailment, shares several ri...

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Main Authors: Ruohan Li, Junnan Wang, Wei Xiong, Yu Luo, Huixian Feng, Heng Zhou, Youjian Peng, Yan He, Qingsong Ye
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-02-01
Series:Frontiers in Microbiology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmicb.2024.1358179/full
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author Ruohan Li
Junnan Wang
Wei Xiong
Yu Luo
Yu Luo
Huixian Feng
Heng Zhou
Youjian Peng
Yan He
Qingsong Ye
Qingsong Ye
author_facet Ruohan Li
Junnan Wang
Wei Xiong
Yu Luo
Yu Luo
Huixian Feng
Heng Zhou
Youjian Peng
Yan He
Qingsong Ye
Qingsong Ye
author_sort Ruohan Li
collection DOAJ
description Alzheimer’s disease (AD) is the most prevalent form of dementia, characterized by a progressive cognitive decline. Sporadic AD, accounting for more than 95% of cases, may arise due to the influence of environmental factors. It was reported that periodontitis, a common oral ailment, shares several risk factors with AD, including advanced age, smoking, diabetes, and hypertension, among others. Periodontitis is an inflammatory disease triggered by dysbiosis of oral microorganisms, whereas Alzheimer’s disease is characterized by neuroinflammation. Many studies have indicated that chronic inflammation can instigate brain AD-related pathologies, including amyloid-β plaques, Tau protein hyperphosphorylation, neuroinflammation, and neurodegeneration. The potential involvement of periodontal pathogens and/or their virulence factors in the onset and progression of AD by the oral-brain axis has garnered significant attention among researchers with ongoing investigations. This review has updated the periodontal pathogens potentially associated with AD, elucidating their impact on the central nervous system, immune response, and related pathological processes in the brain to provide valuable insights for future research on the oral-brain axis.
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spelling doaj.art-a62eb4bd81a74617b73728e0abcc521d2024-02-01T13:33:04ZengFrontiers Media S.A.Frontiers in Microbiology1664-302X2024-02-011510.3389/fmicb.2024.13581791358179The oral-brain axis: can periodontal pathogens trigger the onset and progression of Alzheimer’s disease?Ruohan Li0Junnan Wang1Wei Xiong2Yu Luo3Yu Luo4Huixian Feng5Heng Zhou6Youjian Peng7Yan He8Qingsong Ye9Qingsong Ye10Center of Regenerative Medicine, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, ChinaCenter of Regenerative Medicine, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, ChinaCenter of Regenerative Medicine, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, ChinaCenter of Regenerative Medicine, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, ChinaDepartment of Stomatology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, ChinaDepartment of Stomatology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, ChinaCenter of Regenerative Medicine, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, ChinaDepartment of Stomatology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, ChinaInstitute of Regenerative and Translational Medicine, Tianyou Hospital, Wuhan University of Science and Technology, Wuhan, ChinaCenter of Regenerative Medicine, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, ChinaDepartment of Stomatology, Renmin Hospital of Wuhan University, Wuhan University, Wuhan, ChinaAlzheimer’s disease (AD) is the most prevalent form of dementia, characterized by a progressive cognitive decline. Sporadic AD, accounting for more than 95% of cases, may arise due to the influence of environmental factors. It was reported that periodontitis, a common oral ailment, shares several risk factors with AD, including advanced age, smoking, diabetes, and hypertension, among others. Periodontitis is an inflammatory disease triggered by dysbiosis of oral microorganisms, whereas Alzheimer’s disease is characterized by neuroinflammation. Many studies have indicated that chronic inflammation can instigate brain AD-related pathologies, including amyloid-β plaques, Tau protein hyperphosphorylation, neuroinflammation, and neurodegeneration. The potential involvement of periodontal pathogens and/or their virulence factors in the onset and progression of AD by the oral-brain axis has garnered significant attention among researchers with ongoing investigations. This review has updated the periodontal pathogens potentially associated with AD, elucidating their impact on the central nervous system, immune response, and related pathological processes in the brain to provide valuable insights for future research on the oral-brain axis.https://www.frontiersin.org/articles/10.3389/fmicb.2024.1358179/fullAlzheimer’s diseaseperiodontal pathogenneuroinflammationperiodontitisneurodegeneration
spellingShingle Ruohan Li
Junnan Wang
Wei Xiong
Yu Luo
Yu Luo
Huixian Feng
Heng Zhou
Youjian Peng
Yan He
Qingsong Ye
Qingsong Ye
The oral-brain axis: can periodontal pathogens trigger the onset and progression of Alzheimer’s disease?
Frontiers in Microbiology
Alzheimer’s disease
periodontal pathogen
neuroinflammation
periodontitis
neurodegeneration
title The oral-brain axis: can periodontal pathogens trigger the onset and progression of Alzheimer’s disease?
title_full The oral-brain axis: can periodontal pathogens trigger the onset and progression of Alzheimer’s disease?
title_fullStr The oral-brain axis: can periodontal pathogens trigger the onset and progression of Alzheimer’s disease?
title_full_unstemmed The oral-brain axis: can periodontal pathogens trigger the onset and progression of Alzheimer’s disease?
title_short The oral-brain axis: can periodontal pathogens trigger the onset and progression of Alzheimer’s disease?
title_sort oral brain axis can periodontal pathogens trigger the onset and progression of alzheimer s disease
topic Alzheimer’s disease
periodontal pathogen
neuroinflammation
periodontitis
neurodegeneration
url https://www.frontiersin.org/articles/10.3389/fmicb.2024.1358179/full
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