Widespread neuronal damage and cognitive dysfunction in spinocerebellar ataxia type 3

dc.creatorLopes, TM
dc.creatorD'Abreu, A
dc.creatorFranca, MC
dc.creatorYasuda, CL
dc.creatorBetting, LE
dc.creatorSamara, AB
dc.creatorCastellano, G
dc.creatorSomazz, JC
dc.creatorBalthazar, MLF
dc.creatorLopes-Cendes, I
dc.creatorCendes, F
dc.date2013
dc.dateSEP
dc.date2014-07-30T19:02:55Z
dc.date2015-11-26T16:55:26Z
dc.date2014-07-30T19:02:55Z
dc.date2015-11-26T16:55:26Z
dc.date.accessioned2018-03-28T23:42:46Z
dc.date.available2018-03-28T23:42:46Z
dc.identifierJournal Of Neurology. Springer Heidelberg, v. 260, n. 9, n. 2370, n. 2379, 2013.
dc.identifier0340-5354
dc.identifierWOS:000324099200022
dc.identifier10.1007/s00415-013-6998-8
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/72888
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/72888
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1277110
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionPrevious studies demonstrated cognitive impairments in spinocerebellar ataxia type 3 (SCA3/MJD); however, there is no consensus about the cognitive domains affected and the correlation with structural brain abnormalities. We investigated the neuropsychological profile and 3T-MRI findings, including high-resolution T1-images, diffusion tensor imaging and magnetic resonance spectroscopy of 32 patients with SCA3/MJD and 32 age-, gender- and educational level-matched healthy controls. We reviewed patients' clinical history and CAG repeat length, and performed assessment and rating of ataxia (SARA)-Brazilian version and the neuropsychiatric inventory. Patients presented worse performance in episodic and working memory and Beck inventories (depression and anxiety). SCA3/MJD patients had a reduction of gray matter volume (GM) in the cerebellum, putamen, cingulum, precentral and parietal lobe. A positive correlation was identified between the cognitive findings and GM of temporal, frontal, parietal, culmen and insula. We observed positive correlation between the brainstem's fractional anisotropy and digit span-forward. The following cerebellar metabolite groups (measured relative to creatine) were reduced in patients: N-acetyl-aspartate (NAA), NAA + N-acetyl-aspartate-glutamate and glutamate + glutamine (Glx). We found a positive correlation between Corsi's block-tapping task forward with Glx; semantic verbal fluency with phosphorylcholine and glycerophosphorylcholine; digits span-forward with NAA. The cognitive impairments in SCA3/MJD are associated not only with cerebellar and brainstem abnormalities, but also with neuroimaging evidence of diffuse neuronal and axonal dysfunction, particularly in temporal, frontal, parietal and insular areas.
dc.description260
dc.description9
dc.description2370
dc.description2379
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.languageen
dc.publisherSpringer Heidelberg
dc.publisherHeidelberg
dc.publisherAlemanha
dc.relationJournal Of Neurology
dc.relationJ. Neurol.
dc.rightsfechado
dc.rightshttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dc.sourceWeb of Science
dc.subjectSpinocerebellar ataxia type 3
dc.subjectCognitive deficits
dc.subjectVoxel-based morphometry
dc.subjectDiffusion tensor imaging
dc.subjectMagnetic resonance spectroscopy
dc.subjectMachado-joseph-disease
dc.subjectResonance-imaging Findings
dc.subjectDeficits
dc.subjectPopulation
dc.subjectValidation
dc.titleWidespread neuronal damage and cognitive dysfunction in spinocerebellar ataxia type 3
dc.typeArtículos de revistas


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