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The Effect of Bacterial Composition Shifts in the Oral Microbiota on Alzheimer's Disease

[ Vol. 24 , Issue. 2 ]


Majid Taati Moghadam, Ali Mojtahedi, Babak Bakhshayesh, Sajad Babakhani, Parisa Ajorloo, Aref Shariati, Mehrnaz Mirzaei, Siamak Heidarzadeh and Faramarz Masjedian Jazi*   Pages 167 - 181 ( 15 )


Alzheimer's disease (AD), a neurological disorder, despite significant advances in medical science, has not yet been definitively cured, and the exact causes of the disease remain unclear. Due to the importance of AD in the clinic, large expenses are spent annually to deal with this neurological disorder, and neurologists warn of an increase in this disease in elderly in the near future. It has been believed that microbiota dysbiosis leads to Alzheimer’s as a multi-step disease. In this regard, the presence of footprints of perturbations in the oral microbiome and the predominance of pathogenic bacteria and their effect on the nervous system, especially AD, is a very interesting topic that has been considered by researchers in the last decade. Some studies have looked at the mechanisms by which oral microbiota cause AD. However, many aspects of this interaction are still unclear as to how oral microbiota composition can contribute to this disease. Understanding this interaction requires extensive collaboration by interdisciplinary researchers to explore all aspects of the issue. In order to reveal the link between the composition of the oral microbiota and this disease, researchers from various domains have sought to explain the mechanisms of shift in oral microbiota in AD in this review.


Oral microbiome, Alzheimer's disease, gut microbiota, dysbiosis, periodontitis, microbial.


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