Cognitive function in primary and secondary progressive multiple sclerosis: A multiparametric magnetic resonance imaging study.
Eur J Neurol
; 30(9): 2801-2810, 2023 09.
Article
em En
| MEDLINE
| ID: mdl-37246467
ABSTRACT
BACKGROUND AND PURPOSE:
The differences in cognitive function between primary progressive and secondary progressive multiple sclerosis (MS) remain unclear. We compared cognitive performance between primary progressive multiple sclerosis (PPMS) and secondary progressive multiple sclerosis (SPMS), and explored the structural and functional magnetic resonance imaging (MRI) correlates of their cognitive functions.METHODS:
Seventy-five healthy controls and 183 MS patients (60 PPMS and 123 SPMS) underwent 3.0-T MRI. MS patients were administered the Brief Repeatable Battery of Neuropsychological Tests; cognitive domain z-scores were calculated and then averaged to obtain a measure of global cognition. Using hierarchical linear regression analysis, the contribution of lesion volumes, normalized brain volumes, white matter (WM) fractional anisotropy (FA) and mean diffusivity abnormalities, and resting state (RS) functional connectivity (FC) alterations to global cognition in PPMS and SPMS was investigated.RESULTS:
PPMS and SPMS had similar z-scores in all investigated cognitive domains. Poor global cognitive function was associated with decreased FA of the medial lemniscus (ΔR 2 = 0.11, p = 0.011) and lower normalized gray matter volume (ΔR 2 = 0.29, p < 0.001) in PPMS, and with decreased FA of the fornix (ΔR 2 = 0.35, p < 0.001) and lower normalized WM volume (ΔR 2 = 0.05; p = 0.034) in SPMS.CONCLUSIONS:
PPMS and SPMS had similar neuropsychological performance. Cognitive dysfunction in PPMS and SPMS was related to distinct patterns of structural MRI abnormalities and involvement of different WM tracts, whereas RS FC alterations did not contribute to explaining their global cognitive functioning.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Transtornos Cognitivos
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Esclerose Múltipla Crônica Progressiva
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Imageamento por Ressonância Magnética Multiparamétrica
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Esclerose Múltipla
Limite:
Humans
Idioma:
En
Revista:
Eur J Neurol
Assunto da revista:
NEUROLOGIA
Ano de publicação:
2023
Tipo de documento:
Article
País de afiliação:
Itália