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Age-related brain parenchymal fraction is significantly decreased in young multiple sclerosis patients: a
Jan Kassubek1, Hayrettin Tumani, Daniel Ecker
1Department of Nuclear Medicine, University of Ulm, Ulm, Germany.
Abstract:
The extent of brain atrophy was determined in 33 patients with multiple sclerosis (MS) and in 60 healthy subjects (21-76 years) by calculating brain parenchymal fractions (BPF, the ratio of brain parenchymal to intracranial volume) from 3D MRI. Within the normal data base, subjects at higher ages showed significantly lower BPF values. In younger MS patients, BPF was significantly decreased compared with age-matched controls (20-29 years, p= 0.0022; 30-39 years, =p 0.0001; 40-49 years,p = 0.0444) and was significantly correlated with disease duration and disease severity, but not with the number of detectable MS lesions. Determination of age-related BPF demonstrated significant brain atrophy in early MS and can be considered as a useful biological marker for monitoring MS.
Insights
Multiple sclerosis (MS) patients show significant brain atrophy, even in early stages. Brain parenchymal fraction (BPF) measured by MRI can serve as a biological marker for monitoring MS progression.
Area of Science:
- Neurology
- Radiology
- Biomarkers
Background:
- Multiple sclerosis (MS) is a chronic neurological disease characterized by progressive disability.
- Brain atrophy is a recognized feature of MS, but its early detection and quantification are crucial for monitoring disease progression.
Purpose of the Study:
- To determine the extent of brain atrophy in multiple sclerosis (MS) patients compared to healthy controls.
- To investigate the utility of brain parenchymal fraction (BPF) as a biomarker for early MS detection and monitoring.
Main Methods:
- Utilized 3D MRI to calculate brain parenchymal fraction (BPF), the ratio of brain parenchymal to intracranial volume.
- Compared BPF values in 33 MS patients and 60 healthy subjects across various age groups.
- Assessed correlations between BPF, age, disease duration, disease severity, and MS lesion load.
Main Results:
- Significantly lower BPF values were observed in MS patients compared to age-matched healthy controls, particularly in younger age groups (20-49 years).
- BPF showed significant correlation with disease duration and severity in MS patients.
- No significant correlation was found between BPF and the number of detectable MS lesions.
Conclusions:
- Age-related BPF determination reveals significant brain atrophy in early stages of MS.
- BPF is a valuable biological marker for assessing and monitoring brain atrophy in multiple sclerosis.