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Type: Artigo
Title: Does Side Of Onset Influence The Pattern Of Cerebral Atrophy In Parkinson's Disease?
Author: Santos
Maria C. A.; Campos
Lidiane S.; Guimaraes
Rachel P.; Piccinin
Camila C.; Azevedo
Paula C.; Piovesana
Luiza G.; De Campos
Brunno Machado; Scarparo Amato-Filho
Augusto C.; Cendes
Fernando; D'Abreu
Abstract: Imaging studies have revealed widespread neurodegeneration in Parkinson's disease (PD), but only a few considered the issue of asymmetrical clinical presentations. Objective: To investigate if the side of onset influences the pattern of gray matter (GM) atrophy in PD. Methods: Sixty patients (57.87 +/- 10.27 years) diagnosed with idiopathic PD according to the U.K. Brain Bank criteria, 26 with right-sided disease onset (RDO) and 34 with left-sided disease onset (LDO), were compared to 80 healthy controls (HC) (57.1 +/- 9.47 years). We acquired T1-weighted images on a 3 T scanner. Images were processed and analyzed with VBM8 (SPM8/Dartel) on Matlab R2012b platform. Statistic assessments included a two-sample test (family-wise error p < 0.05) with extent threshold of 20 voxels. Results: Compared to HC, LDO patients had GM atrophy in the insula, putamen, anterior cingulate, frontotemporal cortex, and right caudate, while the RDO group showed atrophy at the anterior cingulate, insula, frontotemporal, and occipital cortex. Conclusion: This study revealed widespread GM atrophy in PD, predominantly in the left hemisphere, regardless of the side of onset. Future investigations should also consider handedness and side of onset to better characterize cerebral involvement and its progression in PD.
Subject: Parkinson's Disease
Gray Matter Atrophy
Voxel-based Morphometry
Editor: Frontiers Media SA
Citation: Frontiers In Neurology. Frontiers Media Sa, v. 7, p. , 2016.
Rights: aberto
Identifier DOI: 10.3389/fneur.2016.00145
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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