Mitochondrial D-loop region methylation differentiates Parkinson’s disease from atypical parkinsonism and Parkinson’s disease dementia | Synapse
February 13, 2026
Mitochondrial D-loop region methylation differentiates Parkinson’s disease from atypical parkinsonism and Parkinson’s disease dementia
Key Points
This research aims to assess how mitochondrial D-loop methylation varies among Parkinson’s disease, atypical parkinsonism, and Parkinson’s disease dementia.
Compared methylation levels in the mitochondrial D-loop region among different groups
Analyzed samples from individuals with Parkinson’s disease, atypical parkinsonism, and Parkinson’s disease dementia
Evaluated potential links to disease-specific mechanisms
Decreased methylation levels observed in both PD-D and atypical parkinsonism
Differences in methylation not attributed to clinical symptoms or treatments
Suggests unique epigenetic mechanisms underlying each condition
Abstract
Decreased mitochondrial D-loop methylation in PD-D and APS may reflect disease-specific epigenetic mechanisms rather than clinical characteristics or treatment effects.