Gut microbial involvement in Alzheimer's disease pathogenesis.

Area of Science:

• Neuroscience
• Microbiology
• Gastroenterology

Background:

• Alzheimer's disease (AD) is a progressive neurodegenerative disorder marked by cognitive decline.
• Current AD treatments offer limited efficacy, necessitating novel therapeutic targets.
• Neuropathological hallmarks include β-amyloid plaques and tau tangles.

Purpose of the Study:

• To review the evidence linking gut microbiota dysbiosis to Alzheimer's disease pathogenesis.
• To explore the mechanisms by which gut dysbiosis influences AD development.
• To identify potential diagnostic and therapeutic strategies targeting the gut microbiota for AD.

Main Methods:

• Literature review of laboratory and clinical studies.
• Analysis of research on gut microbiota composition and function in AD.
• Examination of studies investigating neuroinflammation and neurotransmitter modulation.

Main Results:

• Gut dysbiosis accelerates neuroinflammation, a key factor in AD.
• Alterations in gut microbiota promote the formation of senile plaques.
• Gut microbiota impacts neurotransmitter production, affecting cognitive function.

Conclusions:

• Gut dysbiosis plays a significant pathogenic role in Alzheimer's disease.
• Modulating the gut microbiota presents a promising avenue for AD therapeutic interventions.
• Future research should focus on gut-brain axis targets for AD diagnosis and treatment.