Genome-Wide Assessment Reveals Ancestral Differences in Homozygosity Patterns Potentially Linked to Parkinson's Disease Etiology - PubMed
2 days ago
- #Parkinson's Disease
- #Genetic Epidemiology
- #Genome-Wide Homozygosity
- First large-scale, multi-ancestral study on Parkinson's Disease (PD) examining genome-wide homozygosity impact.
- Analyzed runs of homozygosity (ROHs) in 36,127 PD cases and 19,475 controls across nine ancestral populations.
- Significant differences in ROH metrics (SROH, NROH, AVROH, FROH) observed between PD cases and controls across ancestries.
- Identified 52 variants through homozygosity mapping in families, consanguineous individuals, and early-onset PD cases.
- 1,559 ROHs in consanguineous and early-onset PD overlapped known PD gene regions and risk loci.
- Findings suggest recessive genetic architecture contributes to PD heritability across diverse populations.
- Highlights need for larger, diverse whole-genome sequencing studies to uncover rare recessive variants influencing PD.