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Diffusion MRI Captures White Matter Microstructure Alterations in PRKN Disease
- Source :
- Journal of Parkinson's Disease
- Publication Year :
- 2021
-
Abstract
- Background: Although pathological studies usually indicate pure dopaminergic neuronal degeneration in patients with parkin (PRKN) mutations, there is no evidence to date regarding white matter (WM) pathology. A previous diffusion MRI study has revealed WM microstructural alterations caused by systemic oxidative stress in idiopathic Parkinson’s disease (PD), and we found that PRKN patients have systemic oxidative stress in serum biomarker studies. Thus, we hypothesized that PRKN mutations might lead to WM abnormalities. Objective: To investigate whether there are WM microstructural abnormalities in early-onset PD patients with PRKN mutations using diffusion tensor imaging (DTI). Methods: Nine PRKN patients and 15 age- and sex-matched healthy controls were recruited. DTI measures were acquired on a 3T MR scanner using a b value of 1,000 s/mm2 along 32 isotropic diffusion gradients. The DTI measures were compared between groups using tract-based spatial statistics (TBSS) analysis. Correlation analysis was also performed between the DTI parameters and several serum oxidative stress markers obtained in a previously conducted metabolomic analysis. Results: Although the WM volumes were not significantly different, the TBSS analysis revealed a corresponding decrease in fractional anisotropy and an increase in mean diffusivity and radial diffusivity in WM areas, such as the anterior and superior corona radiata and uncinate fasciculus, in PRKN patients compared with controls. Furthermore, 9-hydroxystearate, an oxidative stress marker, and disease duration were positively correlated with several parameters in PRKN patients. Conclusion: This pilot study suggests that WM microstructural impairments occur in PRKN patients and are associated with disease duration and oxidative stress.
- Subjects :
- 0301 basic medicine
Research Report
Pathology
medicine.medical_specialty
Parkinson's disease
magnetic resonance imaging (MRI)
Ubiquitin-Protein Ligases
Uncinate fasciculus
Pilot Projects
medicine.disease_cause
Parkin
Diffusion MRI
White matter
03 medical and health sciences
Cellular and Molecular Neuroscience
0302 clinical medicine
Fractional anisotropy
medicine
Humans
oxidative stress
Pathological
business.industry
Parkinson Disease
medicine.disease
White Matter
metabolomics
030104 developmental biology
medicine.anatomical_structure
Diffusion Magnetic Resonance Imaging
Case-Control Studies
Parkinson’s disease
Neurology (clinical)
business
030217 neurology & neurosurgery
Oxidative stress
Subjects
Details
- ISSN :
- 1877718X
- Volume :
- 11
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Journal of Parkinson's disease
- Accession number :
- edsair.doi.dedup.....73309ba856cd1c6a8e24585303eaf978