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Published on: September 22, 2023
Microbiota Orchestra in Parkinson's Disease: The Nasal and Oral Maestros
Nádia Rei1, Miguel Grunho1,2, José João Mendes1
1Egas Moniz Center for Interdisciplinary Research (CiiEM), Egas Moniz School of Health and Science, Campus Universitário, Quinta da Granja, 2829-511 Monte de Caparica, Portugal.
Abstract:
Parkinson's disease (PD) is characterized by the progressive degeneration of dopaminergic neurons, leading to a range of motor and non-motor symptoms.
Background/Objectives:
Over the past decade, studies have identified a potential link between the microbiome and PD pathophysiology. The literature suggests that specific bacterial communities from the gut, oral, and nasal microbiota may be involved in neuroinflammatory processes, which are hallmarks of PD. This review aims to comprehensively analyze the current research on the composition, diversity, and dysbiosis characteristics of the nasal and oral microbiota in PD.
Methods:
Through a comprehensive search across scientific databases, we identify twenty original studies investigating the nasal and oral microbiota in PD.
Results:
Most of these studies demonstrate the substantial roles of bacterial communities in neuroinflammatory pathways associated with PD progression. They also underscore the influences of microbiota-derived factors on key aspects of PD pathology, including alpha-synuclein aggregation and immune dysregulation.
Conclusions:
Finally, we discuss the potential diagnostic and therapeutic implications of modulating the nasal and oral microbiota in PD management. This analysis seeks to identify potential avenues for future research in order to clarify the complex relationships between these microorganisms and PD.
Insights
The nasal and oral microbiome may play a role in Parkinson's disease (PD) by influencing neuroinflammation and disease progression. Research suggests targeting these microbiomes could offer new diagnostic and therapeutic strategies for PD.
Area of Science:
- Microbiology
- Neuroscience
- Pathophysiology
Background:
- Parkinson's disease (PD) involves the degeneration of dopaminergic neurons, causing motor and non-motor symptoms.
- Emerging research links the microbiome to PD pathophysiology, with gut, oral, and nasal bacteria potentially driving neuroinflammation.
- Nasal and oral microbiota are increasingly implicated in PD.
Purpose of the Study:
- To comprehensively review current research on the composition, diversity, and dysbiosis of nasal and oral microbiota in PD patients.
- To analyze the role of these specific microbial communities in PD pathogenesis.
- To explore potential diagnostic and therapeutic applications.
Main Methods:
- A systematic literature search was conducted across major scientific databases.
- Twenty original studies investigating nasal and oral microbiota in PD were identified and analyzed.
Main Results:
- Bacterial communities in the nasal and oral cavities significantly influence neuroinflammatory pathways in PD.
- Microbiota-derived factors impact key PD pathology aspects, including alpha-synuclein aggregation and immune system dysregulation.
- Evidence points to a role for oral and nasal microbiota in PD progression.
Conclusions:
- Modulating the nasal and oral microbiota presents potential diagnostic and therapeutic avenues for managing PD.
- Further research is needed to fully elucidate the intricate relationship between these microorganisms and PD.
- Understanding the oral and nasal microbiome's role could lead to novel PD treatments.
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