Brain virome dysbiosis in Parkinson's disease and multiple system atrophy.

ABSTRACT: Viral elements have been reported in human brain tissue, yet their presence in the putamen-a region critically affected in Parkinson's disease (PD) and multiple system atrophy (MSA)has not been characterized. We analyzed whole-genome sequencing data from 32 post-mortem putamen samples (PD: n = 10; MSA: n = 10; healthy controls: n = 12) available under NCBI BioProjects PRJNA756274, PRJNA563007, PRJNA321439, PRJNA555211, and PRJNA555099. Using MetaPhlAn4 for virome profiling, LEfSe for biomarker discovery, and Wilcoxon and ROC analyses for validation, we found that neurodegenerative samples exhibited significantly higher virome alpha diversity compared to healthy controls. LEfSe analysis revealed nine viral species enriched in the neurodegenerative group, including Pe

SUBMITTER: Ghorbani M 

PROVIDER: S-EPMC12586118 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature