Parkinsonian gait in aging: A feature of Alzheimer's pathology?
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BORIS DOI
Publisher DOI
PubMed ID
32135204
Description
INTRODUCTION
Central neurological gait abnormalities (CNGA; i.e. frontal or parkinsonian) are frequently associated with neurodegenerative conditions in older adults, but their pathophysiological substrates remain poorly described. This cross-sectional study aims to assess the association between cerebrospinal fluid (CSF) Alzheimer's biomarkers and CNGA.
METHODS
CSF biomarkers (phosphor-tau, total tau and Aβ1-42) were measured in 52 patients with CNGA (77.33 ± 6.09 years; 28.8% female). Gait phenotypes were evaluated by two diagnosis-blinded assessors and classified as frontal gait, parkinsonian gait or other gait abnormalities.
RESULTS
Parkinsonian gait was significantly associated with a decreased CSF Aβ42 even after adjusting on age, gender, comorbidities and white matter changes (β: -0.32; 95% CI: [-340.6; -22.9]; p value: 0.026). Phosphor-tau and total tau were not associated with any other CNGA (i.e. frontal gait and other gait abnormalities).
DISCUSSION
Parkinsonian gait represents a gait phenotype of Alzheimer's pathology in patients with CNGA.
Central neurological gait abnormalities (CNGA; i.e. frontal or parkinsonian) are frequently associated with neurodegenerative conditions in older adults, but their pathophysiological substrates remain poorly described. This cross-sectional study aims to assess the association between cerebrospinal fluid (CSF) Alzheimer's biomarkers and CNGA.
METHODS
CSF biomarkers (phosphor-tau, total tau and Aβ1-42) were measured in 52 patients with CNGA (77.33 ± 6.09 years; 28.8% female). Gait phenotypes were evaluated by two diagnosis-blinded assessors and classified as frontal gait, parkinsonian gait or other gait abnormalities.
RESULTS
Parkinsonian gait was significantly associated with a decreased CSF Aβ42 even after adjusting on age, gender, comorbidities and white matter changes (β: -0.32; 95% CI: [-340.6; -22.9]; p value: 0.026). Phosphor-tau and total tau were not associated with any other CNGA (i.e. frontal gait and other gait abnormalities).
DISCUSSION
Parkinsonian gait represents a gait phenotype of Alzheimer's pathology in patients with CNGA.
Date of Publication
2020-06
Publication Type
Article
Subject(s)
Keyword(s)
Alzheimer's disease Amyloidopathy Central neurological gait disorders Parkinsonian gait Parkinsonism
Language(s)
en
Contributor(s)
Armand, Stéphane | |
Assal, Frédéric | |
Allali, Gilles |
Additional Credits
Series
Experimental gerontology
Publisher
Elsevier
ISSN
0531-5565
Access(Rights)
restricted