Tahedl, Marlene and Shing, Stacey Li Hi and Finegan, Eoin and Chipika, Rangariroyashe H. and Lope, Jasmin and Hardiman, Orla and Bede, Peter (2022) Propagation patterns in motor neuron diseases: Individual and phenotype-associated disease-burden trajectories across the UMN-LMN spectrum of MNDs. NEUROBIOLOGY OF AGING, 109. pp. 78-87. ISSN 0197-4580, 1558-1497
Full text not available from this repository. (Request a copy)Abstract
Motor neuron diseases encompass a divergent group of conditions with considerable differences in clinical manifestations, survival, and genetic vulnerability. One of the key aspects of clinical heterogeneity is the preferential involvement of upper (UMN) and lower motor neurons (LMN). While longitudinal imaging patters are relatively well characterized in ALS, progressive cortical changes in UMN,-and LMNpredominant conditions are seldom evaluated. Accordingly, the objective of this study is the juxtaposition of longitudinal trajectories in 3 motor neuron phenotypes; a UMN-predominant syndrome (PLS), a mixed UMN-LMN condition (ALS), and a lower motor neuron condition (poliomyelitis survivors). A standardized imaging protocol was implemented in a prospective, multi-timepoint longitudinal study with a uniform follow-up interval of 4 months. Forty-five poliomyelitis survivors, 61 patients with amyotrophic lateral sclerosis (ALS), and 23 patients with primary lateral sclerosis (PLS) were included. Cortical thickness alterations were evaluated in a dual analysis pipeline, using standard cortical thickness analyses, and a z-score-based individualized approach. Our results indicate that PLS patients exhibit rapidly progressive cortical thinning primarily in motor regions; ALS patients show cortical atrophy in both motor and extra-motor regions, while poliomyelitis survivors exhibit cortical thickness gains in a number of cerebral regions. Our findings suggest that dynamic cortical changes in motor neuron diseases may depend on relative UMN and/or LMN involvement, and increased cortical thickness in LMN-predominant conditions may represent compensatory, adaptive processes. (c) 2021 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY-NC-ND license ( http://creativecommons.org/licenses/by-nc-nd/4.0/ )
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | AMYOTROPHIC-LATERAL-SCLEROSIS; HUMAN CEREBRAL-CORTEX; CORTICAL THICKNESS; SPINAL-CORD; DIAGNOSTIC CLASSIFICATION; CORTICOSPINAL TRACT; STRUCTURAL-CHANGES; KENNEDYS DISEASE; WHITE; INVOLVEMENT; Motor neuron disease; Primary lateral sclerosis; Poliomyelitis; Neuroimaging; Clinical trials |
| Subjects: | 100 Philosophy & psychology > 150 Psychology 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Psychiatrie und Psychotherapie Human Sciences > Institut für Psychologie |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 07 Sep 2022 09:48 |
| Last Modified: | 07 Sep 2022 09:48 |
| URI: | https://pred.uni-regensburg.de/id/eprint/46781 |
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