Work

Microbiome Dysbiosis as a Driver of Neurodegeneration: Insights into Alzheimer’s and Parkinson’s Diseases

Year: 2025

Type: article

Abstract: Microbiome dysbiosis—an imbalance in gut microbial communities—has emerged as a critical factor in the pathogenesis of neurological disorders, particularly Alzheimer’s and Parkinson’s diseases. This review examines the role of gut microbiota in neurodegeneration, emphasizing how dysbiosis disrupts gut–brain communication through mechanisms such as impaired gut permeability, systemic inflammation, and neuroinflammation. The gastrointestinal and central nervous systems interact bidirectionally, with microbial metabolites like short-chain fatty acids playing a pivotal role in maintaining gut and brain health. Dysbiotic shifts in microbial composition can compromise the blood–brain barrier, enabling inflammatory molecules to alter brain biochemistry and potentially accelerate neurodegenerative processes. Additionally, this review explores therapeutic strategies—including probiotics, prebiotics, and dietary modifications—designed to restore microbial balance, reduce neuroinflammation, and slow disease progression. Further research is essential to refine microbiome-targeted therapies and fully elucidate their potential in managing neurodegenerative diseases.

Source: Gastrointestinal Disorders

DOI: 10.3390/gidisord7020028

Authors: Ana Jagodic, Antea Krsek, Lou Marie Salomé Schleicher, Lara Baticic

Institution: University of Rijeka

Language: English

Topic: Gut microbiota and health

Subfield: Molecular Biology

Field: Biochemistry, Genetics and Molecular Biology

Domain: Life Sciences

SDG: Good health and well-being

Open Access status: gold

Estimated APC paid: $1,448