Microbiota-Gut-Brain Axis Dysregulation in Alzheimer's Disease: Multi-Pathway Effects and Therapeutic Potential

Area of Science:

• Neuroscience
• Microbiology
• Immunology

Background:

• The gut microbiota plays a critical role in regulating neurodegenerative diseases, including Alzheimer's disease (AD).
• Gut dysregulation contributes to increased intestinal permeability, leading to neuroinflammation, immune dysregulation, and accelerated neuronal damage in AD.
• The precise mechanisms by which the gut microbiota communicates with the brain and impacts cognitive function remain incompletely understood.

Purpose of the Study:

• To review the multifaceted pathways through which the gut microbiome influences Alzheimer's disease.
• To present and discuss therapeutic strategies targeting the gut microbiome for AD treatment.
• To identify current challenges and propose future strategies for microbiome-based AD therapies.

Main Methods:

• Literature review synthesizing current research on the gut microbiome and Alzheimer's disease.
• Analysis of proposed mechanisms of gut-brain axis communication in the context of AD.
• Evaluation of existing and potential therapeutic interventions targeting the gut microbiome.

Main Results:

• Gut microbiota alterations are linked to key pathological features of AD, including neuroinflammation and protein aggregation.
• Multiple communication pathways between the gut and brain are implicated in AD pathogenesis.
• Microbiome-modulating therapies show promise for managing AD progression.

Conclusions:

• The gut microbiome is a significant factor in AD development and progression.
• Targeting the gut microbiome offers a promising avenue for novel AD therapeutic strategies.
• Further research is needed to overcome challenges and optimize microbiome-based interventions for AD.