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| Item Type: | Article |
|---|---|
| Title: | Grey matter atrophy and its relationship with white matter lesions in patients with myelin oligodendrocyte glycoprotein antibody-associated disease, aquaporin-4 antibody-positive neuromyelitis optica spectrum disorder, and multiple sclerosis |
| Creators: |
Cortese, R. |
| Abstract: | OBJECTIVE: To evaluate: (1) the distribution of gray matter (GM) atrophy in myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD), aquaporin-4 antibody-positive neuromyelitis optica spectrum disorder (AQP4+NMOSD), and relapsing-remitting multiple sclerosis (RRMS); and (2) the relationship between GM volumes and white matter lesions in various brain regions within each disease. METHODS: A retrospective, multicenter analysis of magnetic resonance imaging data included patients with MOGAD/AQP4+NMOSD/RRMS in non-acute disease stage. Voxel-wise analyses and general linear models were used to evaluate the relevance of regional GM atrophy. For significant results (p < 0.05), volumes of atrophic areas are reported. RESULTS: We studied 135 MOGAD patients, 135 AQP4+NMOSD, 175 RRMS, and 144 healthy controls (HC). Compared with HC, MOGAD showed lower GM volumes in the temporal lobes, deep GM, insula, and cingulate cortex (75.79 cm(3)); AQP4+NMOSD in the occipital cortex (32.83 cm(3)); and RRMS diffusely in the GM (260.61 cm(3)). MOGAD showed more pronounced temporal cortex atrophy than RRMS (6.71 cm(3)), whereas AQP4+NMOSD displayed greater occipital cortex atrophy than RRMS (19.82 cm(3)). RRMS demonstrated more pronounced deep GM atrophy in comparison with MOGAD (27.90 cm(3)) and AQP4+NMOSD (47.04 cm(3)). In MOGAD, higher periventricular and cortical/juxtacortical lesions were linked to reduced temporal cortex, deep GM, and insula volumes. In RRMS, the diffuse GM atrophy was associated with lesions in all locations. AQP4+NMOSD showed no lesion/GM volume correlation. INTERPRETATION: GM atrophy is more widespread in RRMS compared with the other two conditions. MOGAD primarily affects the temporal cortex, whereas AQP4+NMOSD mainly involves the occipital cortex. In MOGAD and RRMS, lesion-related tract degeneration is associated with atrophy, but this link is absent in AQP4+NMOSD. |
| Keywords: | Aquaporin 4, Atrophy, Autoantibodies, Gray Matter, Magnetic Resonance Imaging, Relapsing-Remitting Multiple Sclerosis, Myelin-Oligodendrocyte Glycoprotein, Neuromyelitis Optica, Retrospective Studies, White Matter |
| Source: | Annals of Neurology |
| ISSN: | 0364-5134 |
| Publisher: | Wiley |
| Volume: | 92 |
| Number: | 2 |
| Page Range: | 276-288 |
| Date: | 23 May 2024 |
| Official Publication: | https://doi.org/10.1002/ana.26951 |
| PubMed: | View item in PubMed |
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