Biomarkers and Functional Decline in Prodromal Alzheimer's Disease

Robb, Catherine; Udeh-Momoh, Chinedu; Wagenpfeil, Stefan; Schöpe, Jakob; Alexopoulos, Panagiotis und Perneczky, Robert (2017): Biomarkers and Functional Decline in Prodromal Alzheimer's Disease. In: Journal of Alzheimers Disease, Bd. 58, Nr. 1: S. 69-78

Abstract

Background: Little is known of possible associations between Alzheimer's disease (AD) biomarkers and instrumental activities of daily living (IADL) change over time. Objective: The present study seeks to identify relationships between baseline imaging and fluid biomarker profiles, and decline in IADL utilizing data collated from the Alzheimer's Disease Neuroimaging Initiative (ADNI) cohort. Methods: Generalized estimating equations analysis, adjusted for cognitive deterioration, was applied to a cohort of 509 individuals from all stages of ADNI, including 156 healthy controls, 189 early mild cognitive impairment (MCI) patients and 164 MCI patients. Results: A significant correlation was found between baseline biomarkers, specifically CSF A beta and FDG PET, and IADL change over a 3-year period in individuals with MCI. Importantly, comparable correlations between presence of pathological biomarker levels and temporal decline in both functional and cognitive performance were also noted. Discussion: We show that distinct baseline biomarkers may predict latent changes in IADL. Our results necessitate a revision of the commonly held view upholding cognitive changes as the predominant endpoint measure associated with presence of abnormal baseline biomarkers.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Medizin
• Themengebiete: 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin und Gesundheit
• ISSN: 1387-2877
• Sprache: Englisch