Multiple sclerosis as a model to investigate SARS-CoV-2 effect on brain atrophy.
CNS Neurosci Ther
; 29(2): 538-543, 2023 02.
Article
em En
| MEDLINE
| ID: mdl-36479826
ABSTRACT
INTRODUCTION:
Data on structural brain changes after infection with SARS-CoV-2 is sparse. We postulate multiple sclerosis as a model to study the effects of SARS-CoV-2 on brain atrophy due to the unique availability of longitudinal imaging data in this patient group, enabling assessment of intraindividual brain atrophy rates.METHODS:
Global and regional cortical gray matter volumes were derived from structural MRIs using FreeSurfer. A linear model was fitted to the measures of the matching pre-SARS-CoV-2 images with age as an explanatory variable. The residuals were used to determine whether the post-SARS-CoV-2 volumes differed significantly from the baseline.RESULTS:
Fourteen RRMS patients with a total of 113 longitudinal magnetic resonance images were retrospectively analyzed. We found no acceleration of brain atrophy after infection with SARS-CoV-2 for global gray matter volume (p = 0.17). However, on the regional level, parahippocampal gyri showed a tendency toward volume reduction (p = 0.0076), suggesting accelerated atrophy during or after infection.CONCLUSIONS:
Our results illustrate the opportunity of using longitudinal MRIs from existing MS registries to study brain changes associated with SARS-CoV-2 infections. We would like to address the global MS community with a call for action to use the available cohorts, reproduce the proposed analysis, and pool the results.Palavras-chave
Texto completo:
1
Base de dados:
MEDLINE
Assunto principal:
Doenças do Sistema Nervoso Central
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Esclerose Múltipla Recidivante-Remitente
/
COVID-19
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Esclerose Múltipla
Tipo de estudo:
Prognostic_studies
/
Risk_factors_studies
Limite:
Humans
Idioma:
En
Ano de publicação:
2023
Tipo de documento:
Article