2018
White matter alterations in Parkinson's disease with normal cognition precede grey matter atrophy
REKTOR, Ivan; Alena SVÁTKOVÁ; Lubomír VOJTÍŠEK; Ilona ZIKMUNDOVÁ; Jiří VANÍČEK et al.Základní údaje
Originální název
White matter alterations in Parkinson's disease with normal cognition precede grey matter atrophy
Autoři
REKTOR, Ivan; Alena SVÁTKOVÁ; Lubomír VOJTÍŠEK; Ilona ZIKMUNDOVÁ; Jiří VANÍČEK; András KIRÁLY a Nikoletta SZABÓ
Vydání
Plos one, San Francisco, Public Library of Science, 2018, 1932-6203
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
30103 Neurosciences
Stát vydavatele
Spojené státy
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 2.776
Označené pro přenos do RIV
Ano
Kód RIV
RIV/00216224:14740/18:00105511
Organizační jednotka
Středoevropský technologický institut
UT WoS
EID Scopus
Klíčová slova anglicky
VOXEL-BASED MORPHOMETRY; PROGRESSIVE SUPRANUCLEAR PALSY; MULTIPLE SYSTEM ATROPHY; SUBJECT DIFFUSION DATA; SPATIAL STATISTICS; BRAIN IMAGES; IMPAIRMENT; GRAY; TENSOR; CONNECTIVITY
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 13. 3. 2019 17:29, Mgr. Pavla Foltynová, Ph.D.
Anotace
V originále
Introduction While progressive MRI brain changes characterize advanced Parkinson's disease (PD), little has been discovered about structural alterations in the earliest phase of the disease, i.e. in patients with motor symptoms and with normal cognition. Our study aimed to detect grey matter (GM) and white matter (WM) changes in PD patients without cognitive impairment. Methods Twenty PD patients and twenty-one healthy controls (HC) were tested for attention, executive function, working memory, and visuospatial and language domains. High-resolution T1-weighted and 60 directional diffusion-weighted 3T MRI images were acquired. The cortical, deep GM and WM volumes and density, as well as the diffusion properties of WM, were calculated. Analyses were repeated on data flipped to the side of the disease origin. Results PD patients did not show any significant differences from HC in cognitive functioning or in brain volumes. Decreased GM intensity was found in the left superior parietal lobe in the right (p<0.02) and left (p<0.01) flipped data. The analysis of original, un-flipped data demonstrated elevated axial diffusivity (p<0.01) in the superior and anterior corona radiata, internal capsule, and external capsule in the left hemisphere of PD relative to HC, while higher mean and radial diffusivity were discovered in the right (p<0.02 and p<0.03, respectively) and left (p<0.02 and p<0.02, respectively) in the fronto-temporal WMutilizing flipped data. Conclusions PD patients without cognitive impairment and GM atrophy demonstrated widespread alterations of WM microstructure. Thus, WM impairment in PD might be a sensitive sign preceding the neuronal loss in associated GM regions.
Návaznosti
| LM2015062, projekt VaV |
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| LQ1601, projekt VaV |
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| 691110, interní kód MU |
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