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Cerebellar white matter disruption in Alzheimer's disease patients: a diffusion tensor imaging study.

Toniolo, Sofia, Serra, Laura, Olivito, Giusy, Caltagirone, Carlo, Mercuri, Nicola Biagio, Marra, Camillo, Cercignani, Mara ORCID: https://orcid.org/0000-0002-4550-2456 and Bozzali, Marco 2020. Cerebellar white matter disruption in Alzheimer's disease patients: a diffusion tensor imaging study. Journal of Alzheimer's Disease 74 (2) , pp. 615-624. 10.3233/jad-191125

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Abstract

The cognitive role of the cerebellum has recently gained much attention, and its pivotal role in Alzheimer's disease (AD) has now been widely recognized. Diffusion tensor imaging (DTI) has been used to evaluate the disruption of the microstructural milieu in AD, and though several white matter (WM) tracts such as corpus callosum, inferior and superior longitudinal fasciculus, cingulum, fornix, and uncinate fasciculus have been evaluated in AD, data on cerebellar WM tracts are currently lacking. We performed a tractography-based DTI reconstruction of the middle cerebellar peduncle (MCP), and the left and right superior cerebellar peduncles separately (SCPL and SCPR) and addressed the differences in fractional anisotropy (FA), axial diffusivity (Dax), radial diffusivity (RD), and mean diffusivity (MD) in the three tracts between 50 patients with AD and 25 healthy subjects. We found that AD patients showed a lower FA and a higher RD compared to healthy subjects in MCP, SCPL, and SCPR. Moreover, higher MD was found in SCPR and SCPL and higher Dax in SCPL. This result is important as it challenges the traditional view that WM bundles in the cerebellum are unaffected in AD and might identify new targets for therapeutic interventions.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Psychology
Cardiff University Brain Research Imaging Centre (CUBRIC)
Publisher: IOS Press
ISSN: 1387-2877
Date of Acceptance: 13 January 2020
Last Modified: 09 Nov 2022 10:28
URI: https://orca.cardiff.ac.uk/id/eprint/139592

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