Corpus callosum dysgenesis causes novel patterns of structural and functional brain connectivity

dc.creatorSzczupak, Diego
dc.creatorFerraz, Marina Kossmann
dc.creatorGemal, Lucas
dc.creatorSzejnfeld, Patricia S. Oliveira
dc.creatorMonteiro, Myriam
dc.creatorBramati, Ivanei
dc.creatorVargas, Fernando R.
dc.creatorRoberto Lent, IRC5 Consortium
dc.creatorSilva, Afonso C.
dc.creatorTovar-Moll, Fernanda
dc.date2021-07-16T13:16:39Z
dc.date2021-07-16T13:16:39Z
dc.date2021
dc.date.accessioned2023-09-26T20:44:30Z
dc.date.available2023-09-26T20:44:30Z
dc.identifierSZCZUPAK, Diego et al. Corpus callosum dysgenesis causes novel patterns of structural and functional brain connectivity. Brain Communications, 2021, 11 p, 2021.
dc.identifier1632-1297
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/48254
dc.identifier10.1093/braincomms/fcab057
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8863030
dc.descriptionDevelopmental malformations (dysgenesis) of the corpus callosum lead to neurological conditions with a broad range of clinical presentations. Investigating the altered brain connectivity patterns is crucial to understanding both adaptive and maladaptive neu roplasticity in corpus callosum dysgenesis patients. Here, we acquired structural diffusion-weighted and resting-state functional MRI data from a cohort of 11 corpus callosum dysgenesis patients (five with agenesis and six with hypoplasia) and compared their structural and functional connectivity patterns to healthy subjects selected from the Human Connectome Project. We found that these patients have fewer structural inter- and intra-hemispheric brain connections relative to healthy controls. Interestingly, the patients with callosal agenesis have a scant number of inter-hemispheric connections but manage to maintain the full integrity of functional connectivity between the same cortical regions as the healthy subjects. On the other hand, the hypoplasic group pre sented abnormal structural and functional connectivity patterns relative to healthy controls while maintaining the same total amount of functional connections. These results demonstrate that acallosal patients can compensate for having fewer structural brain connections and present functional adaptation. However, hypoplasics present atypical structural connections to different brain regions, leading to entirely new and abnormal functional brain connectivity patterns.
dc.description2023
dc.formatapplication/pdf
dc.languageeng
dc.publisherOxford University Press
dc.rightsrestricted access
dc.subjectDisgênese de Corpus calosum
dc.subjectNovos padrões
dc.subjectCérebro estrutural
dc.subjectConectividade
dc.subjectCorpus callosum dysgenesis
dc.subjectNovel patterns
dc.subjectConnectivity
dc.subjectStructural brain
dc.titleCorpus callosum dysgenesis causes novel patterns of structural and functional brain connectivity
dc.typeArticle


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